Agricultural machinery load structure of electric tea harvesting vehicle suitable for hilly tea garden

Abstract

The invention relates to an agricultural machinery load structure of an electric tea harvesting vehicle suitable for a hilly tea garden. The agricultural machine is characterized in that the agricultural machine load is installed on a vehicle body frame of the harvesting vehicle, the agricultural machine load comprises a crown cutter mechanism, a tree body cutter mechanism, a harvesting bag, a leaf fertilizer plastic barrel, a fertilization spraying mechanism, an electric control cabinet and an air compressor, the control cabinet and air compressor installation tray and a fuel generator, and the crown cutter mechanism and the fertilization spraying mechanism are used alternately. The supporting and control cabinet of the tea harvesting bag tray and the air compressor mounting tray are trays of a fixed size, and the size can be automatically adjusted by the vehicle body width adjusting mechanism according to different gradients. The control cabinet and air compressor mounting tray is used for mounting the control cabinet and the air compressor, a fuel generator is also very convenient to add in the tray, and the electric tea harvesting vehicle is a series plug-in hybrid power electric tea harvesting vehicle in which an internal combustion engine supplies power to a range extender, and is more suitable for long-time operation in hilly lands.

Description

Technical Field

[0001] The invention relates to an agricultural machinery load structure of an electric tea harvester suitable for a hilly tea garden. Background Art

[0002] Many tea gardens in my country are mostly in hilly and mountainous areas. Due to the steep slopes and rugged and uneven roads, tea harvesting machinery with adjustable center of gravity is needed. An electric tea harvester suitable for hilly tea gardens can mechanize the harvesting of large quantities of tea and alleviate the problem of declining agricultural labor force.

[0003] The main patents for agricultural mechanization in my country's tea industry include "A tea picking machine with high tea picking efficiency" application publication number CN104525470A; "A tea tree bench mower" application publication number CN 108575386 A; "A riding tea tree bench mower and its use method" application publication number CN 112889512 A; "Tea tree bench mower" application publication number CN 219555718U; "A highly automated tea harvester" application publication number CN 216362633 U; "Tea tree cross-section arc-shaped cutting and harvesting mechanism and cutting and harvesting method" application publication number CN 115211283 A; "A tea harvester" application publication number CN 115088476 A; "An automated tea harvester" application publication number CN 113243202 A, etc., but the mechanical structure is greatly different from the electric tea harvester suitable for hilly tea gardens involved in the present invention. It is necessary to design agricultural machinery equipment suitable for hilly tea gardens, and the agricultural machinery loaded by the agricultural machinery and the electric tea harvester agricultural machinery load structure and transition connection structure. Summary of the invention

[0004] In view of the problems existing in the prior art, the object of the present invention is to provide a technical solution for the agricultural machinery load structure of an electric tea harvesting vehicle suitable for hilly tea gardens.

[0005] The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens is characterized in that the agricultural machinery load is installed on the body frame of the harvester, and the body frame includes a square steel steering bracket, a steering wheel bracket steering mechanism, an upper bracket lifting electric cylinder, a transverse bracket, a longitudinal bracket and an upper balancing bracket. Four square steel steering brackets are provided, and a steering wheel bracket steering mechanism is provided on the square steel steering bracket. Adjacent steering wheel bracket steering mechanisms connect the transverse bracket and the longitudinal bracket to form a basic frame; an upper bracket lifting electric cylinder is provided on the steering wheel bracket steering mechanism, and adjacent upper bracket lifting electric cylinders are connected to the upper balancing bracket through a four-way connector to form an upper frame; a bracket vertical adjustment mechanism is provided on the square steel steering bracket and the transverse bracket, and on the square steel steering bracket and the longitudinal bracket, and the bracket vertical adjustment mechanism is used to adjust the angle between the square steel steering bracket and the transverse bracket or the angle between the square steel steering bracket and the longitudinal bracket; a body width adjustment mechanism is provided on the transverse bracket to adjust the transverse size of the body frame; a body length adjustment mechanism is provided on the longitudinal bracket to adjust the longitudinal size of the body frame; The transverse bracket includes: a single-ear ball head, a transverse bracket square steel and a vehicle body width adjustment mechanism, and the transverse bracket square steel is connected to a support plate arranged on the side of the lower flange of the steering mechanism of the steering wheel bracket through the single-ear ball head parts on both sides; the longitudinal bracket includes: a single-ear ball head part 1, a longitudinal bracket square steel and a vehicle body length adjustment mechanism, and the longitudinal bracket square steel is connected to a support plate arranged on the side of the lower flange of the steering mechanism of the steering wheel bracket through the single-ear ball head parts 1 on both sides; The upper balancing bracket is a telescopic universal joint structure, including: a ball head, an outer rod of the balancing bracket, an inner rod of the balancing bracket and an inner bushing of the transverse balancing bracket. One end of the outer rod of the balancing bracket and the inner rod of the balancing bracket are respectively screwed with a ball head, and the ball head is arranged on the four-way connector of the upper bracket lifting cylinder. The inner bushing of the transverse balancing bracket is arranged between the outer rod of the balancing bracket and the inner rod of the balancing bracket and supported by the inner bushing of the transverse balancing bracket to ensure that the outer rod of the balancing bracket and the inner rod of the balancing bracket can be freely extended and retracted; a plurality of support rods composed of a ball head, an outer rod of the balancing bracket, an inner rod of the balancing bracket and an inner bushing of the transverse balancing bracket are arranged transversely in the upper balancing bracket; The body width adjustment mechanism is arranged on the transverse bracket square steel, and the transverse bracket square steel is divided into two sections of a telescopic structure; the body width adjustment mechanism includes: a cross-axis universal coupling, a forward threaded screw rod, a reverse threaded screw rod, a body width adjustment stepping motor, a nut seat and a slide. The two sides of the cross-axis universal coupling are respectively connected with a forward threaded screw rod and a reverse threaded screw rod, and the forward threaded screw rod and the reverse threaded screw rod are respectively connected to the transverse bracket square steels on both sides through a nut seat, and a slide is arranged on one side of the transverse bracket square steel, and a body width adjustment stepping motor is arranged on the slide, and the body width adjustment stepping motor drives the screw rod to rotate; because the screw rod is divided into a forward threaded screw rod and a reverse threaded screw rod, when the body width adjustment stepping motor drives the screw rod to rotate, the nut seat will be close to or separated from each other to achieve the purpose of body width adjustment; The vehicle body length adjustment mechanism is arranged on the longitudinal bracket square steel, and the longitudinal bracket square steel is divided into two sections of telescopic structures. The vehicle body length adjustment mechanism includes: a cross-axis universal coupling, a forward threaded screw, a reverse threaded screw, a vehicle body length adjustment stepping motor, a nut seat, and a slide. The cross-axis universal coupling connects the forward threaded screw and the reverse threaded screw. The forward threaded screw and the reverse threaded screw are respectively connected to the longitudinal bracket square steels on both sides through nut seats. A slide is arranged on one side of the outer longitudinal bracket square steel. The vehicle body length adjustment stepping motor is arranged on the slide. The vehicle body length adjustment stepping motor drives the screw to rotate. Since the screw is divided into a forward threaded screw and a reverse threaded screw, when the vehicle body length adjustment stepping motor drives the screw to rotate, the nut seats will be close to or separated from each other to achieve the purpose of vehicle body length adjustment. Bearings for operating mechanism brackets are arranged at the outer edges of one and two ends of the cross-axis universal coupling, one end of the operating mechanism positioning bracket is embedded in the outside of the bearing for the operating mechanism bracket, and the other end of the operating mechanism positioning bracket is connected to the L-shaped operating mechanism connecting bracket by bolts; a plurality of positioning bracket fixing holes are arranged on the operating mechanism positioning bracket, and a plurality of L-shaped operating mechanism bracket fixing holes are arranged on the L-shaped operating mechanism connecting bracket, and the operating mechanism positioning bracket and the L-shaped operating mechanism connecting bracket are connected to the operating mechanism bracket fixing bolts and the operating mechanism fixing bracket positioning nuts at different hole positions to achieve the height change of the L-shaped operating mechanism connecting bracket; a crown cutting mechanism or a fertilizer spraying mechanism is connected to the bottom of the L-shaped operating mechanism connecting bracket, and the crown cutting mechanism or the fertilizer spraying mechanism is fixed to the bottom of the L-shaped operating mechanism connecting bracket by welding, respectively, and the height change of the L-shaped operating mechanism connecting bracket causes the height change of the connected crown cutting mechanism or the fertilizer spraying mechanism; The crown cutter mechanism or fertilizer spraying mechanism connected to the L-shaped operating mechanism connecting bracket is arranged in front of the square steel steering bracket at the front part of the electric tea harvester, that is, the crown cutter mechanism or fertilizer spraying mechanism leans against the square steel steering bracket, thereby relatively fixing the longitudinal position of the crown cutter mechanism or fertilizer spraying mechanism, and the tree body cutter mechanism is fixed on the steering wheel bracket wall on the inner side of the square steel steering bracket.

[0006] The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens is characterized in that the agricultural machinery load includes a crown cutting mechanism, a tree body cutting mechanism, a harvesting bag, a foliar fertilizer plastic barrel, a fertilizer spraying mechanism, an electric control cabinet, an air compressor, a control cabinet and an air compressor mounting tray and a fuel generator, and the crown cutting mechanism and the fertilizer spraying mechanism are used interchangeably.

[0007] The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens is characterized in that the crown cutter mechanism includes a crown cutter housing, a cutter drive mechanism cover, an L-shaped operating mechanism connecting bracket and a crown cutter bracket and a cutter housing transition plate that are connected in a matching manner. The crown cutter bracket and the cutter housing transition plate are welded to the crown cutter housing, the L-shaped operating mechanism connecting bracket is welded to the crown cutter bracket and the cutter housing transition plate, and the L-shaped operating mechanism connecting bracket is welded to the crown cutter bracket and the cutter housing transition plate. The L-shaped operating mechanism bracket fixing hole on the L-shaped operating mechanism connecting bracket is used to adjust the height of the crown cutter mechanism by means of the operating mechanism bracket fixing bolt and the operating mechanism fixing bracket positioning nut.

[0008] The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens is characterized in that the crown cutter housing contains a lower cutter, an upper cutter, a motor, a cylindrical cam mechanism, a groove cam, a compressed air nozzle, a compressed air pipe, a cutter drive mechanism cover and a soft sealing ring. The soft sealing ring is used for sealing the compressed air pipe through the crown cutter housing, and the cutter drive mechanism cover is installed with a cutter drive mechanism.

[0009] The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens is characterized in that the cutter drive mechanism includes a cutter fitting plate, a cutter fitting plate fixing bolt, a cutter drive mechanism base, a cutter drive mechanism base fixing bolt, a cylindrical cam bracket, a bearing, a sliding rod, a sliding rod fixing screw, a bushing, an upper cutter drive rod, a lower cutter drive rod, a cylindrical cam groove and a coupling. The cutter drive mechanism base is fixed to the crown cutter housing by the cutter drive mechanism base fixing bolt. There are two cylindrical cam brackets on the cutter drive mechanism base. The axis of the cylindrical cam mechanism one passes through the bearing on the cylindrical cam bracket to enable it to rotate flexibly, the groove cam one on the upper cutting knife driving rod is inserted into the cylindrical cam groove on the upper part of the cylindrical cam mechanism one, and is positioned by passing through the bushing on the upper cutting knife driving rod through two sliding rods, and the sliding rod is finally fixed to the cylindrical cam bracket with a sliding rod fixing screw; the groove cam one of the lower cutting knife driving rod is inserted into the cylindrical cam groove on the lower part of the cylindrical cam mechanism, and is positioned by passing through the bushing on the lower cutting knife driving rod through two sliding rods, and the sliding rod is finally fixed to the cylindrical cam bracket with a sliding rod fixing screw.

[0010] The agricultural machinery load structure of an electric tea harvester suitable for a hilly tea garden is characterized in that the shaft of the motor is connected to the shaft of the cylindrical cam mechanism through a coupling, the upper cutter driving rod is welded to the upper cutter, and the lower cutter driving rod is welded to the lower cutter; one side of the Z-shaped cutter bonding plate is pressed on the upper cutter and the lower cutter, and the other side of the Z-shaped cutter bonding plate is fixed to the crown cutter housing bolt through the cutter bonding plate fixing bolt; when the motor rotates, the cylindrical cam mechanism is driven to rotate through the coupling, and the groove cam on the upper cutter driving rod and the groove cam of the lower cutter driving rod are horizontally reciprocated along the cylindrical cam groove, and the upper cutter and the lower cutter are driven to reciprocate toward each other through the upper cutter driving rod and the lower cutter driving rod to cut tea leaves; at the same time, the compressed air nozzle blows compressed air so that the cut tea leaves are blown to the tea harvesting bag through the tea harvesting hose.

[0011] The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens is characterized in that the tree cutting knife mechanism includes a tree cutting knife electric drive mechanism that cooperates with each other, a tree cutting knife and a wheel steering bracket connecting bolt, two compressed air pipes, an air blowing nozzle, an upper cutting blade, a lower cutting blade, two motors, two cylindrical cam mechanisms, two groove cams, two cutting knife drive mechanism covers, a tree cutting knife mechanism fixing plate, a tree cutting knife shell and a wheel steering bracket connecting nut, the tree cutting knife shell is connected to a tree cutting knife mechanism fixing plate, and the tree cutting knife mechanism fixing plate is threadedly connected to the wheel steering bracket connecting nut welded on the steering wheel bracket wall through the tree cutting knife and wheel steering bracket connecting bolts, so that the tree cutting knife mechanism is fixed on the steering wheel bracket.

[0012] The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens is characterized in that the tree cutter shell is internally installed with a matching cutter drive mechanism cover shell 2, a tree cutter electric drive mechanism, a tree cutter and wheel steering bracket connecting bolts, a crown cutter cylindrical cam mechanism 2, a compressed air pipe 2, an air blowing nozzle, an upper cutting blade and a lower cutting blade. The air blowing nozzle installed in the compressed air pipe 2 forms an upward angle of 30 degrees. During harvesting operation, the rotation of the motor 2 ultimately drives the upper cutting blade and the lower cutting blade to reciprocate in the crown cutter cylindrical cam mechanism, and at the same time the air blowing nozzle blows compressed air, so that the cut tea leaves are blown from bottom to top and transported to the tea harvesting bag through the tea harvesting hose; the cutter drive mechanism cover shell 2 is provided with a cutter drive mechanism with the same internal structure as the cutter drive mechanism cover shell 1.

[0013] The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens is characterized in that the control cabinet, the air compressor mounting tray and the tea harvest bag tray all include tray supports, sliding blocks and upper balancing transverse bracket welding surfaces, metal discharge port support rods, tray fixing screws, sliding blocks and sliding blocks and upper balancing transverse bracket welding surfaces, the tray support is configured with two sliding blocks which are respectively welded and fixed to the balancing bracket inner rod and the balancing bracket outer rod at the welding surfaces of the sliding blocks and the upper balancing transverse bracket, the control cabinet, the air compressor mounting tray and the tea harvest bag tray are fixedly connected with the tray fixing screws and the tray support bolts; the compressed air hose is connected from the air compressor to the compressed air nozzle of the crown cutter mechanism and the air blowing nozzle of the tree body cutter mechanism respectively, and the tea harvesting hoses from the crown cutter mechanism and from the two tree body cutter mechanisms are connected to the tea harvesting bag through a hose four-way connector.

[0014] The agricultural machinery load structure of the electric tea harvester suitable for hilly tea gardens is characterized in that harvest bags or foliar fertilizer plastic barrels are placed on the tea harvest bag tray, and an air compressor, an electric control cabinet and a fuel generator are installed on the air compressor mounting tray.

[0015] The tea harvesting bag tray and the control cabinet and air compressor mounting tray of the present invention are fixedly connected by tray fixing screws and tray support bolts. The tray support is equipped with two sliders which are respectively welded and fixed to the inner rod of the balance bracket and the outer rod of the balance bracket at the welding surface of the slider and the upper balance transverse bracket. In this way, the support of the tea harvesting bag tray and the control cabinet and air compressor mounting tray is a fixed-size tray, and the size does not need to be adjusted according to different slopes. The vehicle body width adjustment mechanism automatically adjusts and adjusts the size. The control cabinet and air compressor mounting tray is used for the installation of the control cabinet and the air compressor, and it is also very convenient to install a fuel generator in the tray. The electric tea harvesting vehicle is a series plug-in hybrid electric tea harvesting vehicle powered by an internal combustion engine as a range extender, which is more suitable for long-term operation in hilly areas.

[0016] When tea leaves need to be harvested, a spare folding harvesting bag can be placed in the tea harvesting bag tray, and a harvesting bag sleeved with a metal discharge port fixed to a metal discharge port support rod is placed on the folding harvesting bag.

[0017] The crown cutter mechanism is fixedly connected by bolts of an L-shaped operating mechanism connecting bracket and an operating mechanism positioning bracket, so that the crown cutter mechanism is in front of the square steel steering bracket at the front of the electric tea harvester. When the electric tea harvester moves forward to harvest tea leaves, the crown cutter mechanism leans against the square steel steering bracket, thereby relatively fixing the longitudinal position of the crown cutter mechanism.

[0018] The compressed air pipeline from the air compressor to the compressed air nozzle of the crown cutter mechanism and the blowing nozzle of the tree cutter mechanism is connected by a hose, and the connecting pipelines connected to the tea harvesting bag and the crown cutter mechanism and the two tree cutter mechanisms through the hose four-way connector are also connected by hoses. Through the hose connection, the pipeline of the electric tea harvesting vehicle can flexibly follow the lifting and lowering changes of the upper support lifting cylinder.

[0019] The harvesting bag of the present invention is used interchangeably with the foliar fertilizer plastic barrel. The harvesting bag is used when picking tea leaves. When foliar fertilizer needs to be applied to tea leaves, the foliar fertilizer plastic barrel can be placed in the tea harvesting bag tray. The output pressure of the air compressor is adjusted to 0.025MPa, and the compressed air hose from the air compressor is used to pressurize the foliar fertilizer plastic barrel from the upper part, and the liquid fertilizer hose is connected to the fertilizer spraying mechanism from the lower part of the foliar fertilizer plastic barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of tool holder height adjustment; Figure 2 This is a schematic diagram of the mounting bracket connection for the operating mechanism; Figure 3 This is a schematic diagram of the L-shaped operating mechanism connecting bracket; Figure 4 It is a schematic diagram of the tree cutting knife mechanism; Figure 5 Side view of the tree cutter mechanism; Figure 6 A top view of the tree cutter mechanism; Figure 7 Top view of the crown cutter mechanism; Figure 8 Cross-section of the crown cutter mechanism; Fig. 9 Axonometric view of the cutter cylindrical cam mechanism; Fig.10 Axonometric view of the cutter drive mechanism (crown cutter as an example); Fig.11 It is a schematic diagram of the crown cutter mechanism; Fig.12It is a side view schematic diagram of the cutting knife position; Fig.13 This is a schematic diagram of the connection between the tray and the upper balancing bracket; Fig.14 It is a schematic diagram of the state of the pallet fixing mechanism when the width of the vehicle body is extended; Fig.15 It is a schematic diagram of the state of the pallet fixing mechanism when the width of the vehicle body is reduced; Fig.16 This is a schematic diagram of the axle side of the electric tea harvester; Fig.17 A schematic diagram of the axle side of an electric tea harvester converted into a foliar fertilizer sprayer; Fig.18 Schematic diagram of foliar fertilizer spraying. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings: An agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens, the agricultural machinery load is installed on a body frame 100 of the harvester, the body frame 100 includes a square steel steering bracket 110, a steering wheel bracket steering mechanism 120, an upper bracket lifting electric cylinder 130, a transverse bracket 170, a longitudinal bracket 180 and an upper balancing bracket 190, four square steel steering brackets 110 are provided, a steering wheel bracket steering mechanism 120 is provided on the square steel steering bracket 110, adjacent steering wheel bracket steering mechanisms 120 are connected to the transverse bracket 170 and the longitudinal bracket 180 to form a basic frame; an upper bracket lifting electric cylinder 130 is provided on the steering wheel bracket steering mechanism 120, adjacent upper The layer support lifting electric cylinder 130 is connected to the upper balance support 190 through a four-way connector to form an upper frame; the square steel steering support 110 and the transverse support 170, the square steel steering support 110 and the longitudinal support 180 are all equipped with a support vertical adjustment mechanism 140, and the support vertical adjustment mechanism 140 is used to adjust the angle between the square steel steering support 110 and the transverse support 170 or the angle between the square steel steering support 110 and the longitudinal support 180; the transverse support 170 is equipped with a body width adjustment mechanism 160 for adjusting the transverse size of the body frame; the longitudinal support 180 is equipped with a body length adjustment mechanism 150 for adjusting the longitudinal size of the body frame; The transverse bracket 170 includes: a single-ear ball head 171, a transverse bracket square steel 172 and a vehicle body width adjustment mechanism 160. The transverse bracket square steel 172 is connected to a support plate provided on the side of the lower flange of the steering wheel bracket steering mechanism 120 through the single-ear ball head 171 on both sides. Similarly, the longitudinal bracket 180 includes: a single-ear ball head 1, a longitudinal bracket square steel and a vehicle body length adjustment mechanism 150. The longitudinal bracket square steel is connected to a support plate provided on the side of the lower flange of the steering wheel bracket steering mechanism 120 through the single-ear ball head 1 on both sides.

[0022] The upper balancing bracket 190 is a telescopic universal joint structure, including: a ball head piece 191, a balancing bracket outer rod 192, a balancing bracket inner rod 193 and a transverse balancing bracket inner bushing 194. The balancing bracket outer rod 192 and the balancing bracket inner rod 193 are respectively screwed with ball head pieces at one end, and the ball head pieces are arranged on the four-way connector 132 of the upper bracket lifting cylinder 130. The transverse balancing bracket inner bushing 194 is arranged between the balancing bracket outer rod 192 and the balancing bracket inner rod 193 and supported by the transverse balancing bracket inner bushing 194 to ensure that the balancing bracket outer rod 192 and the balancing bracket inner rod 193 can be freely extended and retracted; a plurality of support rods consisting of a ball head piece 191, a balancing bracket outer rod 192, a balancing bracket inner rod 193 and a transverse balancing bracket inner bushing 194 are arranged transversely in the upper balancing bracket 190.

[0023] The vehicle body width adjustment mechanism 160 is arranged on the transverse bracket square steel 172, and the transverse bracket square steel 172 is divided into two sections that can be telescopic; the vehicle body width adjustment mechanism 160 includes: a cross-axis universal coupling 161, a forward threaded screw rod 162, a reverse threaded screw rod 163, a vehicle body width adjustment stepping motor 166, a nut seat 167 and a slide 168, and the two sides of the cross-axis universal coupling 161 are respectively connected to the forward threaded screw rod 162 and the reverse threaded screw rod 163, and the forward threaded screw rod 162 and the reverse threaded screw rod 163 are respectively connected to the forward threaded screw rod 162 and the reverse threaded screw rod 163. The forward threaded screw rod 163 is connected to the transverse bracket square steel 172 on both sides through the nut seat 167, a slide 168 is set on one side of the transverse bracket square steel 172, and a body width adjustment stepper motor 166 is set on the slide 168, and the body width adjustment stepper motor 166 drives the screw rod to rotate; since the screw rod is divided into a forward threaded screw rod 162 and a reverse threaded screw rod 163, when the body width adjustment stepper motor 166 drives the screw rod to rotate, the nut seat 167 will be close to or separated from each other to achieve the purpose of body width adjustment.

[0024] The vehicle body length adjustment mechanism 150 is arranged on the longitudinal bracket square steel, dividing the longitudinal bracket square steel into two sections of retractable structures. The components and adjustment principles included in the vehicle body length adjustment mechanism are the same as those of the vehicle body width adjustment mechanism 160; the vehicle body length adjustment mechanism includes: a cross-axis universal coupling, a forward threaded screw, a reverse threaded screw, a vehicle body length adjustment stepping motor, a nut seat, and a slide. The cross-axis universal coupling connects the forward threaded screw and the reverse threaded screw. The forward threaded screw and the reverse threaded screw are respectively connected to the longitudinal bracket square steels on both sides through nut seats. A slide is arranged on the outer longitudinal bracket square steel on one side, and a vehicle body length adjustment stepping motor is arranged on the slide. The vehicle body length adjustment stepping motor drives the screw to rotate. Since the screw is divided into a forward threaded screw and a reverse threaded screw, when the vehicle body length adjustment stepping motor drives the screw to rotate, the nut seats will approach or separate from each other to achieve the purpose of vehicle body length adjustment.

[0025] Operating mechanism bracket bearings 164 are arranged at the outer edges of both ends of the cross-axis universal coupling 161, one end of an operating mechanism positioning bracket 165 is arranged on the outside of the operating mechanism bracket bearing 164, and the other end of the operating mechanism positioning bracket 165 is connected to the L-shaped operating mechanism connecting bracket 205 by bolts; a plurality of positioning bracket fixing holes are arranged on the operating mechanism positioning bracket 165, and a plurality of L-shaped operating mechanism bracket fixing holes 208 are arranged on the L-shaped operating mechanism connecting bracket 205, and the operating mechanism positioning bracket 165 and the L-shaped operating mechanism connecting bracket 205 are connected by the operating mechanism The bracket fixing bolt 206 and the operating mechanism fixing bracket positioning nut 207 are connected to different hole positions to realize the height change of the L-shaped operating mechanism connecting bracket 205; the bottom of the L-shaped operating mechanism connecting bracket 205 is connected to the crown cutting mechanism 200 or the fertilizer spraying mechanism 322, and the crown cutting mechanism 200 or the fertilizer spraying mechanism 322 is fixed to the bottom of the L-shaped operating mechanism connecting bracket 205 by welding. The height change of the L-shaped operating mechanism connecting bracket 205 thereby changes the height of the connected crown cutting mechanism 200 or the fertilizer spraying mechanism 322.

[0026] The crown cutting mechanism 200 or the fertilizer spraying mechanism 322 connected to the L-shaped operating mechanism connecting bracket 205 is arranged in front of the square steel steering bracket 110 at the front part of the electric tea harvesting vehicle, wherein the crown cutting mechanism 200 leans against the square steel steering bracket when the electric tea harvesting vehicle moves forward to harvest tea leaves, thereby relatively fixing the longitudinal position of the crown cutting mechanism, and the tree body cutting mechanism 220 is fixed on the steering wheel bracket wall on the inner side of the square steel steering bracket 110.

[0027] The agricultural machinery load includes a crown cutting mechanism 200, a tree body cutting mechanism 220, a harvesting bag 300, a foliar fertilizer plastic barrel 320, a fertilizer spraying mechanism 322, an electric control cabinet 400, an air compressor 500, a control cabinet and air compressor mounting tray 600 and a fuel generator 800. The crown cutting mechanism 200 and the fertilizer spraying mechanism 322 are used interchangeably.

[0028] The crown cutter mechanism 200 includes a crown cutter housing 201, a cutter drive mechanism cover 202, an L-shaped operating mechanism connecting bracket 205 and a crown cutter bracket and cutter housing transition plate 209, the crown cutter bracket and cutter housing transition plate 209 are welded to the crown cutter housing 201, the L-shaped operating mechanism connecting bracket 205 is welded to the crown cutter bracket and cutter housing transition plate 209, and the L-shaped operating mechanism connecting bracket 205 is used to adjust the height of the crown cutter mechanism 200 by means of an operating mechanism bracket fixing bolt 206 and an operating mechanism fixing bracket positioning nut 207.

[0029] The crown cutter housing 201 includes a lower cutter 210, an upper cutter 211, a motor 212, a cylindrical cam mechanism 213, a groove cam 214, a compressed air nozzle 203, a compressed air pipe 204, a cutter drive mechanism cover 202 and a soft sealing ring 215. The soft sealing ring 215 is used for sealing the compressed air pipe 204 passing through the crown cutter housing 201. The cutter drive mechanism cover 202 is installed with a cutter drive mechanism.

[0030] The cutting knife driving mechanism includes a cutting knife fitting plate 700, a cutting knife fitting plate fixing bolt 701, a cutting knife driving mechanism base 702, a cutting knife driving mechanism base fixing bolt 703, a cylindrical cam bracket 704, a bearing 705, a sliding rod 706, a sliding rod fixing screw 707, a bushing 708, an upper cutting knife driving rod 709, a lower cutting knife driving rod 710, a cylindrical cam groove 711 and a coupling 712. The cutting knife driving mechanism base 702 is fixed to the crown cutting knife housing 201 by the cutting knife driving mechanism base fixing bolt 703. There are two cylindrical cam brackets 704 on the cutting knife driving mechanism base 702. The axis of the cylindrical cam mechanism 213 passes through the cylindrical cam bracket 704. The bearing 705 enables it to rotate flexibly, the groove cam 214 on the upper cutting knife driving rod 709 is inserted into the cylindrical cam groove 711 on the upper part of the cylindrical cam mechanism 213, and is positioned by two sliding rods 706 passing through the bushing 708 on the upper cutting knife driving rod 709, and the sliding rod 706 is finally fixed to the cylindrical cam bracket 704 with a sliding rod fixing screw 707; the groove cam 214 of the lower cutting knife driving rod 710 is inserted into the cylindrical cam groove 711 on the lower part of the cylindrical cam mechanism 213, and is positioned by two sliding rods 706 passing through the bushing 708 on the lower cutting knife driving rod 710, and the sliding rod 706 is finally fixed to the cylindrical cam bracket 704 with a sliding rod fixing screw 707.

[0031] The shaft of the motor 212 is connected to the shaft of the cylindrical cam mechanism 213 through a coupling 712, the upper cutter driving rod 709 is welded to the upper cutter 211, and the lower cutter driving rod 710 is welded to the lower cutter 210; one side of the Z-shaped cutter fitting plate 700 is pressed on the upper cutter 211 and the lower cutter 210, and the other side of the Z-shaped cutter fitting plate 700 is bolted to the crown cutter housing 201 through the cutter fitting plate fixing bolt 701; when the motor 212 rotates, the cylindrical cam mechanism 213 is driven by the coupling 712 The cylindrical cam mechanism 213 rotates, and the groove cam 214 on the upper cutter driving rod 709 and the groove cam 214 of the lower cutter driving rod 710 reciprocate horizontally along the cylindrical cam groove 711, and the upper cutter driving rod 709 and the lower cutter driving rod 710 drive the upper cutter 211 and the lower cutter 210 to reciprocate toward each other to cut the tea leaves; at the same time, the compressed air nozzle 203 blows compressed air, so that the cut tea leaves are blown to the tea harvesting bag 300 through the tea harvesting hose 502.

[0032] The tree cutting knife mechanism 220 includes a tree cutting knife electric drive mechanism 221 that cooperates with each other, a tree cutting knife and a wheel steering bracket connecting bolt 222, a compressed air pipe 223, an air blowing nozzle 224, an upper cutting blade 225, a lower cutting blade 226, a motor 227, a cylindrical cam mechanism 228, a groove cam 229, a cutting knife drive mechanism cover 230, a tree cutting knife mechanism fixing plate 231, a tree cutting knife shell 232 and a wheel steering bracket connecting nut 233. The tree cutting knife shell 232 is connected to the tree cutting knife mechanism fixing plate 231. The tree cutting knife mechanism fixing plate 231 is threadedly connected to the wheel steering bracket connecting nut 233 welded on the steering wheel bracket wall 114 through the tree cutting knife and wheel steering bracket connecting bolt 222, so that the tree cutting knife mechanism 220 is fixed on the steering wheel bracket 110.

[0033] The tree cutter housing 232 is internally provided with a matching cutter drive mechanism cover 230, a tree cutter electric drive mechanism 221, a tree cutter and wheel steering bracket connecting bolt 222, a crown cutter cylindrical cam mechanism 228, a compressed air pipe 223, an air blowing nozzle 224, an upper cutter blade 225 and a lower cutter blade 226. The air blowing nozzle 224 installed in the compressed air pipe 223 is tilted upward at an angle of 30 degrees. During the harvesting operation, the motor 227 rotates to finally drive the upper cutter blade 225 and the lower cutting blade 226 reciprocate in the crown cutting knife cylindrical cam mechanism 228, and at the same time, the blowing nozzle 224 blows compressed air, so that the cut tea leaves are blown from bottom to top and transported to the tea harvesting bag 300 through the tea harvesting hose 502; a cutting knife driving mechanism with the same internal structure as the cutting knife driving mechanism cover 1 202 is arranged in the cutting knife driving mechanism cover 230, and the action process and working principle are the same. The working principle of the tree body cutting knife mechanism 220 is the same as that of the crown cutting knife mechanism 200, and they are not repeated here.

[0034] The control cabinet and air compressor mounting tray 600 and the tea harvesting bag tray 601 both include a tray support 603, a slider 607, a metal discharge port support rod 605, a tray fixing screw 606, a slider 607 and a welding surface 604 between the slider and the upper balancing transverse bracket. The tray support 603 is equipped with two sliders 607 which are respectively welded and fixed to the balancing bracket inner rod 193 and the balancing bracket outer rod 192 at the welding surface 604 between the slider and the upper balancing transverse bracket. The balancing bracket outer rod 192 and the balancing bracket inner rod 193 are supported by the transverse bracket inner bushing 194 to ensure that the balancing bracket outer rod 192 and the balancing bracket inner rod 193 can be flexibly extended and retracted. The control cabinet is fixedly connected to the air compressor mounting tray 600 and the tea harvesting bag tray 601 by tray fixing screws 606 and tray support 603 bolts; the compressed air hose 501 is connected from the air compressor 500 to the compressed air nozzle 203 of the crown cutter mechanism 200 and the air blowing nozzle 224 of the tree cutter mechanism 220, respectively, and the tea harvesting hose 502 from the crown cutter mechanism 200 and from the two tree cutter mechanisms 210 is connected to the tea harvesting bag 300 through the hose four-way connector 503. The tea harvesting bag 300 or the foliar fertilizer plastic barrel 320 is placed on the tea harvesting bag tray 601, and the air compressor 500, the electric control cabinet 400 and the fuel generator 800 are installed on the air compressor mounting tray 600. Example

[0035] The invention discloses an agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens, mainly comprising: a vehicle frame 100, a crown cutting knife mechanism 200, a tree body cutting knife mechanism 210, an agricultural machinery load and its connecting mechanism, a harvesting bag 300, an electric control cabinet 400, an air compressor 500, a control cabinet and an air compressor mounting tray 600, a tea harvesting bag tray 601, and a fuel generator 800.

[0036] See also Figure 1 Figure 2 Figure 3 , Fig.13 , Fig.17 The vehicle body frame 100 includes: a square steel steering bracket 110, a steering wheel bracket steering mechanism 120, an upper bracket lifting electric cylinder 130, a bracket vertical adjustment mechanism 140, a vehicle body length adjustment mechanism 150, a vehicle body width adjustment mechanism 160, a transverse bracket 170, a longitudinal bracket 180 and an upper balancing bracket 190; wherein the transverse bracket 170 includes: a single-ear ball head 171, a transverse bracket square steel 172 and a vehicle body width adjustment mechanism 160, and the transverse bracket square steel 172 is connected to the steering wheel bracket steering mechanism through the single-ear ball head 171 on both sides. 120 is connected to the support plate on the side of the lower flange of the vehicle body; wherein the vehicle body width adjustment mechanism 160 is arranged on the transverse bracket square steel 172, and the vehicle body width adjustment mechanism 160 includes: a cross-axis universal coupling 161, a forward threaded screw rod 162, a reverse threaded screw rod 163, a vehicle body width adjustment stepping motor 166, a nut seat 167 and a slide 168; wherein the upper balancing bracket 190 is a telescopic universal joint including: a ball head 191, a balancing bracket outer rod 192, a balancing bracket inner rod 193, and a transverse balancing bracket inner bushing 194. The setting of the vehicle body width adjustment mechanism 160 can automatically adjust the width of the vehicle body, and manually change the height of the cutter or foliar fertilizer spraying mechanism in the operating mechanism positioning bracket 165 to adapt to the strip-planted tea gardens in various places.

[0037] Among them, the agricultural machinery load and its connecting mechanism include: a crown cutting mechanism 200, a tree body cutting mechanism 220, a harvesting bag 300, a foliar fertilizer plastic barrel 320, a fertilizer spraying mechanism 322, an electric control cabinet 400, an air compressor 500, a control cabinet and air compressor mounting tray 600 and a fuel generator 800. The crown cutting mechanism 200 and the fertilizer spraying mechanism 322 are used interchangeably.

[0038] The crown cutter mechanism 200 includes a crown cutter housing 201, a cutter drive mechanism cover 202, a compressed air nozzle 203, a compressed air pipe 204, an L-shaped operating mechanism connecting bracket 205, an operating mechanism bracket fixing bolt 206, an operating mechanism fixing bracket positioning nut 207, an L-shaped operating mechanism bracket fixing hole 208, a crown cutter bracket and cutter housing transition plate 209, a lower cutter 210, an upper cutter 211, a motor 212, a cylindrical cam mechanism 213, a groove cam 214 and a soft sealing ring 215.

[0039] The tree cutting knife mechanism 220 includes: a tree cutting knife electric drive mechanism 221, a tree cutting knife and a wheel steering bracket connecting bolt 222, a compressed air pipe 223, an air blowing nozzle 224, an upper cutting blade 225, a lower cutting blade 226, a cutting knife drive mechanism cover 230, a tree cutting knife mechanism fixing plate 231 and a tree cutting knife outer shell 232; wherein the tree cutting knife electric drive mechanism 221 includes a motor 227, a cylindrical cam mechanism 228, and a groove cam 229.

[0040] See also Figure 8 , Fig.11 The crown cutter bracket and the cutter housing transition plate 209 are welded to the crown cutter housing 201 to increase the connection strength between the cutter bracket and the crown cutter housing 201. The L-shaped operating mechanism connecting bracket 205 is welded to the crown cutter bracket and the cutter housing transition plate 209. The L-shaped operating mechanism bracket fixing hole 208 on the L-shaped operating mechanism connecting bracket 205 is used to adjust the height of the crown cutter mechanism 200 through the operating mechanism bracket fixing bolt 206 and the operating mechanism fixing bracket positioning nut 207.

[0041] See also Figure 7 , Figure 8 , Fig.11 The crown cutter housing 201 includes a lower cutter 210, an upper cutter 211, a compressed air nozzle 203, a compressed air pipe 204 and a cutter drive mechanism housing 202. The soft sealing ring 215 is used to seal the compressed air pipe 204 passing through the crown cutter housing 201, and the tea harvesting hose 502 is fixed to the crown cutter housing 201 through the tea harvesting hose connecting clamp 504.

[0042] The cutter drive mechanism housing 202 is internally installed with a drive motor 212, a cylindrical cam mechanism 213 and a groove cam 214. One end of the groove cam 214 is embedded in the groove line of the cylindrical cam mechanism 213, and the other end is connected to the upper cutter 211. When the motor 212 rotates, the cylindrical cam mechanism 213 is driven to rotate. Since the groove cam 214 is embedded in the cylindrical cam mechanism 213, the upper cutter 211 is driven to reciprocate. During the harvesting operation, the motor 212 rotates and finally drives the blade of the upper cutter 211 to reciprocate. At the same time, the compressed air nozzle 203 blows compressed air, so that the cut tea leaves are blown to the tea harvesting bag 300 through the tea harvesting hose 502.

[0043] See also Figure 6 The tree cutter housing 232 is connected to a tree cutter mechanism fixing plate 231, and the tree cutter mechanism fixing plate 231 is threadedly connected to a wheel steering bracket connecting nut 233 welded on the steering wheel bracket wall 114 through a tree cutter and wheel steering bracket connecting bolt 222, so that the tree cutter mechanism 220 is fixed on the steering wheel bracket 110.

[0044] See also Figure 4 and Figure 5 The tree cutter housing 232 is internally installed with: a tree cutter electric drive mechanism 221, a bolt 222 connecting the tree cutter and the wheel steering bracket, a crown cutter cylindrical cam mechanism 228, a compressed air pipe 223, an air blowing nozzle 224, an upper cutting blade 225 and a lower cutting blade 226; the cutter drive mechanism cover 230 is located on the upper part of the tree cutter housing 232, and the cutter drive mechanism cover 230 contains a motor 227, a cylindrical cam mechanism 228, and a groove cam 229. One end of the groove cam 229 is embedded in the groove line of the cylindrical cam mechanism 228, and the other end is connected to the upper cutting blade 225 through the cutter drive rod. When the motor 227 rotates and drives the cylindrical cam mechanism 228 to rotate, since the groove cam 229 is embedded in the cylindrical cam mechanism 228, it drives the upper cutting blade 225 and the lower cutting blade 226 to reciprocate to cut the tea leaves.

[0045] The blowing nozzle 224 installed on the compressed air pipe 223 is tilted upward at an angle of 30 degrees. During the harvesting operation, the motor 227 drives the upper cutting knife 211 and the lower cutting knife 210 to move back and forth towards each other to cut the tea leaves. At the same time, the blowing nozzle 224 blows compressed air, so that the cut tea leaves are blown from bottom to top and transported to the tea harvesting bag 300 through the tea harvesting hose 502.

[0046] See also Fig. 9 and Fig.10The cutter drive mechanism base 702 of the crown cutter mechanism 200 is fixed to the crown cutter housing 201 by the cutter drive mechanism base fixing bolts 703. There are two cylindrical cam brackets 704 on the cutter drive mechanism base 702. The axis of the cylindrical cam mechanism 213 passes through the bearing 705 on the cylindrical cam bracket 704 so that it can rotate flexibly. The groove cam 214 on the upper cutter drive rod 709 is inserted into the cylindrical cam groove 711 on the upper part of the cylindrical cam mechanism 213, and is positioned by two sliding rods 706 passing through the bushing 708 on the upper cutter drive rod 709. The sliding rod 706 is finally fixed to the cylindrical cam bracket 704 with a sliding rod fixing screw 707. Similarly, the groove cam 214 of the lower cutting knife driving rod 710 is inserted into the cylindrical cam groove 711 at the lower part of the cylindrical cam mechanism 213, and is positioned by two sliding rods 706 passing through the bushing 708 on the lower cutting knife driving rod 710. The sliding rod 706 is finally fixed on the cylindrical cam bracket 704 with a sliding rod fixing screw 707.

[0047] The shaft of the motor 212 is connected to the shaft of the cylindrical cam mechanism 213 through a coupling 712, the upper cutter driving rod 709 is welded to the upper cutter 211, and the lower cutter driving rod 710 is welded to the lower cutter 210. One side of the Z-shaped cutter fitting plate 700 is pressed on the upper cutter 211 and the lower cutter 210, and the other side of the Z-shaped cutter fitting plate 700 is bolted to the crown cutter housing 201 through the cutter fitting plate fixing bolts 701.

[0048] When the motor 212 rotates, the cylindrical cam mechanism 213 is driven to rotate through the coupling 712, and the groove cam 214 on the upper cutter driving rod 709 and the groove cam 214 of the lower cutter driving rod 710 reciprocate horizontally along the cylindrical cam groove 711, and the upper cutter 211 and the lower cutter 210 are driven by the upper cutter driving rod 709 and the lower cutter driving rod 710 to reciprocate toward each other to cut the tea leaves.

[0049] The working principle of the tree body cutting knife mechanism 220 is similar to that of the crown cutting knife mechanism 200 .

[0050] See also Fig.16 , Fig.14 and Fig.15 The tea harvesting bag tray 601 and the control cabinet and air compressor installation tray 600 are both fixedly connected by tray fixing screws 606 and tray support 603 bolts. The tray support 603 is provided with two sliders 607 which are respectively welded and fixed to the balance bracket inner rod 193 and the balance bracket outer rod 192 at the welding surface 604 between the slider and the upper balance transverse bracket. In this way, the support of the tea harvesting bag tray 601 and the control cabinet and air compressor installation tray 600 are a tray of fixed size, and there is no need to adjust the size due to different slopes. The vehicle body width adjustment mechanism 160 automatically adjusts the size.

[0051] The control cabinet and air compressor installation tray 600 is used for the installation of the control cabinet and the air compressor. It is also very convenient to install a fuel generator 800 in the tray 600. The electric tea harvester becomes a series plug-in hybrid electric tea harvester in which the internal combustion engine powers the range extender, which is more suitable for long-term operation in hilly areas.

[0052] See also Fig.16 When tea leaves need to be harvested, a spare folding harvesting bag 301 can be placed in the tea harvesting bag tray 601 , and a harvesting bag 300 which is connected to a metal discharge port 306 fixed to a metal discharge port support rod 605 is placed on the folding harvesting bag 301 .

[0053] See also Figure 1 Figure 2 Figure 3 , Fig.12 , Fig.13 and Fig.16 The crown cutter mechanism 200 is fixedly connected by bolts of the L-shaped operating mechanism connecting bracket 205 and the operating mechanism positioning bracket 165, so that the crown cutter mechanism 200 is in front of the square steel steering bracket 110 at the front of the electric tea harvester. When the electric tea harvester moves forward to harvest tea leaves, the crown cutter mechanism 200 leans against the square steel steering bracket 110, thereby relatively fixing the longitudinal position of the crown cutter mechanism 200.

[0054] See also Fig.16 , Figure 4 and Figure 5 The compressed air pipeline from the air compressor 500 to the compressed air nozzle 203 of the crown cutter mechanism 200 and the blowing nozzle 224 of the tree cutter mechanism 220 is connected by a hose; the tea harvesting hose 502 from the harvesting bag 300 is fixed with a tea harvesting hose clamp 504 and a hose four-way connector 503, and the connecting pipes connected to the tea harvesting bag 300 and the crown cutter mechanism 200 and the two tree cutter mechanisms 210 are also connected by hoses and fixed with tea harvesting hose clamps 504. Through the hose connection, the pipeline of the electric tea harvesting vehicle can flexibly follow the lifting and lowering changes of the upper support lifting cylinder 130.

[0055] See also Fig.16 When tea leaves need to be harvested, a spare folding harvesting bag 301 can be placed in the tea harvesting bag tray 601, and a harvesting bag 300 connected to a metal discharge port 306 fixed to a metal discharge port support rod 605 is placed on the folding harvesting bag 301, and the metal discharge port 306 faces the rear of the vehicle, which is convenient for the operator to replace the harvesting bag 300.

[0056] See also Fig.17If foliar fertilizer is needed for tea leaves, a plastic bucket 320 of foliar fertilizer can be placed in the tea harvest bag tray 601. The output pressure of the air compressor 500 is adjusted to 0.025MPa. The air hose 501 from the air compressor 500 is compressed from the upper part of the plastic bucket 320 of foliar fertilizer to prepare pressure for the plastic bucket 320 of foliar fertilizer. The liquid fertilizer hose 321 is connected to the fertilizer spraying mechanism 322 from the lower part of the plastic bucket 320 of foliar fertilizer. Please refer to Fig.18 Schematic diagram of foliar fertilizer spraying and estimated effect of foliar fertilizer spraying.

[0057] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens, characterized by: The agricultural machinery load is installed on the body frame of the harvester, and the body frame includes a square steel steering bracket, a steering wheel bracket steering mechanism, an upper bracket lifting electric cylinder, a transverse bracket, a longitudinal bracket and an upper balancing bracket. Four square steel steering brackets are provided, and a steering wheel bracket steering mechanism is provided on the square steel steering bracket. The adjacent steering wheel bracket steering mechanisms are connected to the transverse bracket and the longitudinal bracket to form a basic frame; an upper bracket lifting electric cylinder is provided on the steering wheel bracket steering mechanism, and the adjacent upper bracket lifting electric cylinders are connected to the upper balancing bracket through a four-way connector to form an upper frame; a bracket vertical adjustment mechanism is provided on the square steel steering bracket and the transverse bracket, and on the square steel steering bracket and the longitudinal bracket. The bracket vertical adjustment mechanism is used to adjust the angle between the square steel steering bracket and the transverse bracket or the angle between the square steel steering bracket and the longitudinal bracket; a body width adjustment mechanism is provided on the transverse bracket to adjust the transverse dimension of the body frame; a body length adjustment mechanism is provided on the longitudinal bracket to adjust the longitudinal dimension of the body frame; The transverse bracket includes: a single-ear ball head, a transverse bracket square steel and a vehicle body width adjustment mechanism, and the transverse bracket square steel is connected to a support plate arranged on the side of the lower flange of the steering mechanism of the steering wheel bracket through the single-ear ball head parts on both sides; the longitudinal bracket includes: a single-ear ball head part 1, a longitudinal bracket square steel and a vehicle body length adjustment mechanism, and the longitudinal bracket square steel is connected to a support plate arranged on the side of the lower flange of the steering mechanism of the steering wheel bracket through the single-ear ball head parts 1 on both sides; The upper balancing bracket is a telescopic universal joint structure, including: a ball head, an outer rod of the balancing bracket, an inner rod of the balancing bracket and an inner bushing of the transverse balancing bracket. One end of the outer rod of the balancing bracket and the inner rod of the balancing bracket are respectively screwed with a ball head, and the ball head is arranged on the four-way connector of the upper bracket lifting cylinder. The inner bushing of the transverse balancing bracket is arranged between the outer rod of the balancing bracket and the inner rod of the balancing bracket and supported by the inner bushing of the transverse balancing bracket to ensure that the outer rod of the balancing bracket and the inner rod of the balancing bracket can be freely extended and retracted; a plurality of support rods composed of a ball head, an outer rod of the balancing bracket, an inner rod of the balancing bracket and an inner bushing of the transverse balancing bracket are arranged transversely in the upper balancing bracket; The body width adjustment mechanism is arranged on the transverse bracket square steel, and the transverse bracket square steel is divided into two sections of a telescopic structure; the body width adjustment mechanism includes: a cross-axis universal coupling, a forward threaded screw rod, a reverse threaded screw rod, a body width adjustment stepping motor, a nut seat and a slide. The two sides of the cross-axis universal coupling are respectively connected with a forward threaded screw rod and a reverse threaded screw rod, and the forward threaded screw rod and the reverse threaded screw rod are respectively connected to the transverse bracket square steels on both sides through a nut seat, and a slide is arranged on one side of the transverse bracket square steel, and a body width adjustment stepping motor is arranged on the slide, and the body width adjustment stepping motor drives the screw rod to rotate; because the screw rod is divided into a forward threaded screw rod and a reverse threaded screw rod, when the body width adjustment stepping motor drives the screw rod to rotate, the nut seat will be close to or separated from each other to achieve the purpose of body width adjustment; The vehicle body length adjustment mechanism is arranged on the longitudinal bracket square steel, and the longitudinal bracket square steel is divided into two sections of telescopic structures. The vehicle body length adjustment mechanism includes: a cross-axis universal coupling, a forward threaded screw, a reverse threaded screw, a vehicle body length adjustment stepping motor, a nut seat, and a slide. The cross-axis universal coupling connects the forward threaded screw and the reverse threaded screw. The forward threaded screw and the reverse threaded screw are respectively connected to the longitudinal bracket square steels on both sides through nut seats. A slide is arranged on one side of the outer longitudinal bracket square steel. The vehicle body length adjustment stepping motor is arranged on the slide. The vehicle body length adjustment stepping motor drives the screw to rotate. Since the screw is divided into a forward threaded screw and a reverse threaded screw, when the vehicle body length adjustment stepping motor drives the screw to rotate, the nut seats will be close to or separated from each other to achieve the purpose of vehicle body length adjustment. Bearings for operating mechanism brackets are arranged at the outer edges of one and two ends of the cross-axis universal coupling, one end of the operating mechanism positioning bracket is embedded in the outside of the bearing for the operating mechanism bracket, and the other end of the operating mechanism positioning bracket is connected to the L-shaped operating mechanism connecting bracket by bolts; a plurality of positioning bracket fixing holes are arranged on the operating mechanism positioning bracket, and a plurality of L-shaped operating mechanism bracket fixing holes are arranged on the L-shaped operating mechanism connecting bracket, and the operating mechanism positioning bracket and the L-shaped operating mechanism connecting bracket are connected to the operating mechanism bracket fixing bolts and the operating mechanism fixing bracket positioning nuts at different hole positions to achieve the height change of the L-shaped operating mechanism connecting bracket; a crown cutting mechanism or a fertilizer spraying mechanism is connected to the bottom of the L-shaped operating mechanism connecting bracket, and the crown cutting mechanism or the fertilizer spraying mechanism is fixed to the bottom of the L-shaped operating mechanism connecting bracket by welding, respectively, and the height change of the L-shaped operating mechanism connecting bracket causes the height change of the connected crown cutting mechanism or the fertilizer spraying mechanism; The crown cutter mechanism or fertilizer spraying mechanism connected to the L-shaped operating mechanism connecting bracket is arranged in front of the square steel steering bracket at the front part of the electric tea harvester, that is, the crown cutter mechanism or fertilizer spraying mechanism leans against the square steel steering bracket, thereby relatively fixing the longitudinal position of the crown cutter mechanism or fertilizer spraying mechanism, and the tree body cutter mechanism is fixed on the steering wheel bracket wall on the inner side of the square steel steering bracket.

2. The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens according to claim 1 is characterized in that The agricultural machinery load includes a crown cutting mechanism, a tree body cutting mechanism, a harvesting bag, a plastic barrel for foliar fertilizer, a fertilizer spraying mechanism, an electric control cabinet, an air compressor, a control cabinet and an air compressor mounting tray, and a fuel generator. The crown cutting mechanism and the fertilizer spraying mechanism are used interchangeably.

3. The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens according to claim 2 is characterized in that The crown cutter mechanism includes a crown cutter housing, a cutter drive mechanism cover, an L-shaped operating mechanism connecting bracket and a crown cutter bracket and a cutter housing transition plate that are connected together. The crown cutter bracket and the cutter housing transition plate are welded to the crown cutter housing, and the L-shaped operating mechanism connecting bracket is welded to the crown cutter bracket and the cutter housing transition plate. The L-shaped operating mechanism connecting bracket is welded to the crown cutter bracket and the cutter housing transition plate. The L-shaped operating mechanism bracket fixing hole on the L-shaped operating mechanism connecting bracket is used to adjust the height of the crown cutter mechanism by means of the operating mechanism bracket fixing bolt and the operating mechanism fixing bracket positioning nut.

4. The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens according to claim 3 is characterized in that The crown cutter housing includes a lower cutter, an upper cutter, a motor, a cylindrical cam mechanism, a groove cam, a compressed air nozzle, a compressed air pipe, a cutter drive mechanism cover and a soft sealing ring, the soft sealing ring is used for sealing the compressed air pipe passing through the crown cutter housing, and the cutter drive mechanism cover is installed with a cutter drive mechanism.

5. The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens according to claim 4, characterized in that The cutting knife driving mechanism comprises a cutting knife fitting plate, a cutting knife fitting plate fixing bolt, a cutting knife driving mechanism base, a cutting knife driving mechanism base fixing bolt, a cylindrical cam bracket, a bearing, a sliding rod, a sliding rod fixing screw, a bushing, an upper cutting knife driving rod, a lower cutting knife driving rod, a cylindrical cam groove and a coupling. The cutting knife driving mechanism base is fixed to the crown cutting knife housing by the cutting knife driving mechanism base fixing bolt. There are two cylindrical cam brackets on the cutting knife driving mechanism base. The shaft of the cylindrical cam mechanism passes through the cylindrical cam bracket. The bearings on it enable it to rotate flexibly, the groove cam on the upper cutting knife driving rod is inserted into the cylindrical cam groove on the upper part of the cylindrical cam mechanism, and is positioned by two sliding rods passing through the bushing on the upper cutting knife driving rod, and the sliding rod is finally fixed to the cylindrical cam bracket with a sliding rod fixing screw; the groove cam of the lower cutting knife driving rod is inserted into the cylindrical cam groove at the lower part of the cylindrical cam mechanism, and is positioned by two sliding rods passing through the bushing on the lower cutting knife driving rod, and the sliding rod is finally fixed to the cylindrical cam bracket with a sliding rod fixing screw.

6. The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens according to claim 5, characterized in that The shaft of the motor is connected to the shaft of the cylindrical cam mechanism through a coupling, the upper cutter driving rod is welded to the upper cutter, and the lower cutter driving rod is welded to the lower cutter; one side of the Z-shaped cutter fitting plate is pressed on the upper cutter and the lower cutter, and the other side of the Z-shaped cutter fitting plate is fixed to the crown cutter housing bolts through the cutter fitting plate fixing bolts; when the motor rotates, the cylindrical cam mechanism is driven to rotate through the coupling, and the groove cam on the upper cutter driving rod and the groove cam of the lower cutter driving rod are horizontally reciprocating along the cylindrical cam groove, and the upper cutter and the lower cutter are driven to reciprocate toward each other through the upper cutter driving rod and the lower cutter driving rod to cut tea leaves; at the same time, the compressed air nozzle blows compressed air, so that the cut tea leaves are blown to the tea harvesting bag through the tea harvesting hose.

7. The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens according to claim 6, characterized in that The tree cutting knife mechanism includes a tree cutting knife electric drive mechanism that cooperates with each other, a tree cutting knife and a wheel steering bracket connecting bolt, two compressed air pipes, an air blowing nozzle, an upper cutting blade, a lower cutting blade, two motors, two cylindrical cam mechanisms, two groove cams, two cutting knife drive mechanism covers, a tree cutting knife mechanism fixing plate, a tree cutting knife shell and a wheel steering bracket connecting nut. The tree cutting knife shell is connected to the tree cutting knife mechanism fixing plate, and the tree cutting knife mechanism fixing plate is threadedly connected to the wheel steering bracket connecting nut welded on the steering wheel bracket wall through the tree cutting knife and wheel steering bracket connecting bolts, so that the tree cutting knife mechanism is fixed on the steering wheel bracket.

8. The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens according to claim 7, characterized in that The tree cutter shell is internally installed with a matching cutter drive mechanism cover shell 2, a tree cutter electric drive mechanism, a tree cutter and a wheel steering bracket connecting bolt, a crown cutter cylindrical cam mechanism 2, a compressed air pipe 2, an air blowing nozzle, an upper cutting blade and a lower cutting blade. The air blowing nozzle installed in the compressed air pipe 2 forms an upward angle of 30 degrees. During the harvesting operation, the motor 2 rotates and finally drives the upper cutting blade and the lower cutting blade to reciprocate in the crown cutter cylindrical cam mechanism. At the same time, the air blowing nozzle blows compressed air, so that the cut tea leaves are blown from bottom to top and transported to the tea harvesting bag through the tea harvesting hose; the cutter drive mechanism cover shell 2 is provided with a cutter drive mechanism with the same internal structure as the cutter drive mechanism cover shell 1.

9. The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens according to claim 2, characterized in that The control cabinet and the air compressor mounting pallet and the tea harvesting bag pallet all include a pallet support, a sliding block and a welding surface between the upper balancing transverse bracket, a metal discharge port support rod, a pallet fixing screw, a sliding block and a welding surface between the sliding block and the upper balancing transverse bracket. The pallet support is equipped with two sliding blocks which are respectively welded and fixed to the inner rod and the outer rod of the balancing bracket at the welding surface between the sliding block and the upper balancing transverse bracket. The control cabinet and the air compressor mounting pallet and the tea harvesting bag pallet are fixedly connected with the pallet fixing screws and the pallet support bolts; the compressed air hose is connected from the air compressor to the compressed air nozzle of the crown cutting mechanism and the blowing nozzle of the tree body cutting mechanism respectively, and the tea harvesting hose from the crown cutting mechanism and from the two tree body cutting mechanisms is connected to the tea harvesting bag through a hose four-way connector.

10. The agricultural machinery load structure of an electric tea harvester suitable for hilly tea gardens according to claim 9, characterized in that The tea harvest bag tray is placed with a harvest bag or a foliar fertilizer plastic barrel, and the air compressor, an electric control cabinet and a fuel generator are installed on the air compressor installation tray.

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