Rice seedling tray lifting machine

Abstract

The utility model relates to a rice seedling tray lifting machine, which aims to solve the problems of low operation efficiency and high operation cost caused by manual tray lifting of rice seedlings. The tray lifting mechanism is arranged in front of the main machine frame, a tray lifting main beam on the tray lifting mechanism is fixedly connected with an outer beam on the main machine frame, the lifting mechanism is located on the main machine frame, a stand column on the lifting mechanism is fixedly connected with a machine frame main beam on the main machine frame, and the tray pushing mechanism is arranged behind the lifting mechanism in parallel. A front wrapping iron sheet on the tray pushing mechanism is connected with a rear lifting beam on the lifting mechanism through a connecting element, the walking mechanisms are arranged on the left side, the right side and the rear face of the main machine frame, a six-edge shaft bearing seat used for supporting a six-edge main shaft is connected with a bearing seat supporting plate on the main machine frame through a connecting element, and the tray loading mechanism is arranged at the left end of the main machine frame. And the tray loading mechanism is opposite to a lifting frame on the lifting mechanism. According to the utility model, one person can lift the seedling trays, transport the seedling trays into a frame and convey the seedling trays to a transport vehicle for 600 seedling trays within one hour, the operation efficiency is high, and the operation cost is low.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a rice seedling tray lifting machine. Background Art

[0002] When the existing rice seedling trays are lifted, generally 5 to 7 people are required to manually lift the seedling trays one by one along the horizontal and vertical directions and then move them onto the transport vehicle. Usually, six people can lift and transport 600 seedling trays in one hour, with very low operation efficiency and high operation cost. Content of the Utility Model

[0003] The utility model provides a rice seedling tray lifting machine to solve the problems of low operation efficiency and high operation cost caused by manual lifting of rice seedlings.

[0004] A rice seedling tray lifting machine comprises a main frame, a tray lifting mechanism, a lifting mechanism, a tray pushing mechanism, a traveling mechanism and a tray loading mechanism. The tray lifting mechanism is arranged in front of the main frame, and the tray lifting main beam on the tray lifting mechanism is fixedly connected with the outer beam on the main frame. The lifting mechanism is located above the main frame, and the column on the lifting mechanism is fixedly connected with the frame main beam on the main frame. The tray pushing mechanism is arranged in parallel behind the lifting mechanism, and the front covering iron sheet on the tray pushing mechanism is connected with the rear lifting beam on the lifting mechanism through a connecting element. The traveling mechanism is arranged on the left side, right side and rear of the main frame, that is, the two traveling main beams on the traveling mechanism are symmetrically arranged on the left and right sides of the main frame, and the hexagonal main shaft on the traveling mechanism is located behind the main frame. The hexagonal shaft bearing seat for supporting the hexagonal main shaft is connected with the bearing seat support plate on the main frame through a connecting element. The tray loading mechanism is arranged at the left end of the main frame and is directly opposite to the lifting frame on the lifting mechanism.

[0005] Further, when in the initial state, the lifting mechanism is in an inclined state with the front end lower and the rear end higher, that is, the inclined surface of the lifting mechanism is the extension of the upper inclined surface of the side inclined plate of the tray lifting mechanism.

[0006] Further, the main frame includes a frame main beam, an outer beam, an intermediate beam, an inner beam, a bridge, a short beam, a positioning block, a leg and a bearing seat support plate. Two outer beams are vertically and fixedly connected to the left and right ends in front of the frame main beam. The intermediate beam is arranged in parallel between the two outer beams and is fixedly connected with the frame main beam. The inner beam is arranged in parallel between the outer beam and the intermediate beam and is fixedly connected with the frame main beam. The bridge is arranged between the outer beam and the inner beam and is arranged in parallel with the frame main beam. The two ends of the bridge are fixedly connected with the outer beam and the inner beam. A short beam is vertically fixedly connected between the bridge and the frame main beam. A positioning block is fixedly connected to the upper end surface of each outer beam at the front end. A leg is vertically fixedly connected to the upper end surface of each inner beam. Several bearing seat support plates are fixedly connected to the frame main beam.

[0007] Further, the coiling mechanism includes a coiling main beam, side inclined plates, middle inclined plates, an upper transmission shaft, a middle transmission shaft, a lower transmission shaft, middle bearing seats, side bearing seats, a coiling motor, an input sprocket, a first sprocket, a first chain, a second sprocket, a third sprocket, a second chain, a fourth sprocket, a fifth sprocket, a third chain, a reinforcing rod, a support rod, a connecting pipe, a telescopic pipe, a guiding pipe, a height adjustment bolt, and a pinion gear; two side inclined plates are located in front of the coiling main beam and symmetrically fixed to the left and right ends of the coiling main beam. Several middle inclined plates are arranged in parallel between the two side inclined plates and fixed to the coiling main beam. The side inclined plates and the middle inclined plates have the same shape, and the front end of the side inclined plate has a sharp angle. The upper transmission shaft, the middle transmission shaft, and the lower transmission shaft are arranged in sequence from the rear to the front between the two side inclined plates. The upper transmission shaft, the middle transmission shaft, and the lower transmission shaft all pass through several middle inclined plates. A middle bearing seat is provided at the connection between the upper transmission shaft and the middle inclined plate. The middle bearing seat is sleeved on the upper transmission shaft and fixed to the corresponding middle inclined plate. The two ends of the upper transmission shaft are respectively supported in the side bearing seats. A middle bearing seat is provided at the connection between the middle transmission shaft and the middle inclined plate. The middle bearing seat is sleeved on the middle transmission shaft and fixed to the corresponding middle inclined plate. The two ends of the middle transmission shaft are respectively supported in the side bearing seats. A middle bearing seat is provided at the connection between the lower transmission shaft and the middle inclined plate. The middle bearing seat is sleeved on the lower transmission shaft and fixed to the corresponding middle inclined plate. The two ends of the lower transmission shaft are respectively supported in the side bearing seats. The side bearing seats are fixed to the corresponding side inclined plates. The coiling motor is fixedly installed on one of the middle inclined plates, and the output shaft of the coiling motor passes through the middle inclined plate. The input sprocket is fixedly installed on the output shaft of the coiling motor. The first sprocket is fixedly installed on the upper transmission shaft. The input sprocket and the first sprocket are connected by the first chain. The second sprocket is fixedly installed on the upper transmission shaft. The third sprocket is fixedly installed on the middle transmission shaft. The second sprocket and the third sprocket are connected by the second chain. The fourth sprocket is fixedly installed on the middle transmission shaft. The fifth sprocket is fixedly installed on the lower transmission shaft. The fourth sprocket and the fifth sprocket are connected by the third chain. The reinforcing rod is located in front of the lower transmission shaft, passes through the side inclined plates and the middle inclined plates, and the reinforcing rod is fixed to the side inclined plates and the middle inclined plates by connecting elements. Two support rods are symmetrically arranged at both ends of the main beam and fixed to the main beam, and the support rods incline forward. The inclination angle of the support rods is 15°-18°. The connecting pipe is arranged in parallel above the coiling main beam and fixed to the support rods. Two telescopic pipes are symmetrically arranged at both ends of the connecting pipe, and the telescopic pipes are arranged inside the connecting pipe. Two guiding pipes are symmetrically fixed to the outer ends of the two telescopic pipes, and the guiding pipes are arranged vertically. The height adjustment bolt passes through the guiding pipe. Several pinion gears are arranged on the upper transmission shaft, the middle transmission shaft, and the lower transmission shaft.

[0008] Further, the lifting mechanism includes a lifting upper shaft, a lifting upper shaft bearing seat, a lifting motor, a lifting upper shaft sprocket, a lifting lower shaft sprocket, a lifting lower shaft, a lifting chain, a lifting lower shaft bearing seat, a column, a guide rail, a slider, a linkage plate, a slider connection angle plate, a lifting rod, a lifting frame, a pin shaft sleeve, a lifting frame connection plate, a pin shaft, a support column and a positioning section; both ends of the lifting upper shaft are supported by the lifting upper shaft bearing seat, the lifting upper shaft bearing seat is connected to the column through a connecting element, the input end of the lifting upper shaft is connected to the input shaft of the lifting motor, the lifting upper shaft sprocket is fixedly installed on the lifting upper shaft, the lifting lower shaft sprocket is fixedly installed on the lifting lower shaft, the lifting upper shaft sprocket and the lifting lower shaft sprocket are connected by the lifting chain, the lifting lower shaft is supported by the lifting lower shaft bearing seat, the lifting lower shaft bearing seat is connected to the column through a connecting element, the guide rail is fixedly installed in front of the column, the slider is slidably connected to the guide rail, the linkage plate is fixedly connected to the slider, one side of the slider connection angle plate is connected to the linkage plate through a connecting element, the other side of the slider connection angle plate is fixedly connected to the lifting chain, the lifting rod is horizontally arranged under the lifting frame, one end of the lifting rod is fixedly connected to the linkage plate, the other end of the lifting rod is fixedly connected to the pin shaft sleeve, two lifting frame connection plates are symmetrically arranged at both ends of the pin shaft sleeve, the pin shaft is hinged in the pin shaft sleeve and the lifting frame connection plate, the lifting frame connection plate is fixedly connected to the lifting frame, the support column is fixedly connected to the upper end surface of the lifting rod and close to the side of the linkage plate, five positioning sections are arranged at equal intervals from top to bottom on one of the lifting chains, the topmost positioning section is the highest position for the lifting frame to rise, the lowermost positioning section is the position when the lifting frame is horizontal before rising, and the distance between every two adjacent positioning sections should be greater than the height of the seedling tray.

[0009] Further, the lifting frame includes a front lifting beam, a rear lifting beam, a left lifting beam, a right lifting beam and several idler rollers. The front lifting beam and the rear lifting beam are arranged front and back. The left lifting beam and the right lifting beam are fixedly connected to both ends of the front lifting beam and the rear lifting beam. The front lifting beam, the rear lifting beam, the left lifting beam and the right lifting beam form a rectangular frame structure. Several idler rollers are arranged in parallel between the left lifting beam and the right lifting beam, and both ends of the idler rollers are arranged in the front lifting beam and the rear lifting beam.

[0010] Further, the push plate mechanism includes a chain track, a push plate chain, a rear covering iron sheet, a front covering iron sheet, a push plate longitudinal beam, a main push plate sprocket, a secondary push plate sprocket, a push plate main shaft, a push plate main shaft sleeve, a push plate main shaft bearing seat, a telescopic rod, an L-shaped plate, a telescopic column, a push plate main shaft motor, a push plate secondary shaft, a front push plate secondary shaft sleeve, a rear push plate secondary shaft sleeve, a front connecting block, a rear connecting block, a push plate assembly, a support short beam, a fixing plate, a push plate chain adjusting nut, and a chain adjusting bolt; the two chain tracks are symmetrically arranged with respect to the longitudinal center line of the push plate mechanism, one push plate chain is installed in each chain track, the outer edge of the chain track at the rear side is covered with a rear covering iron sheet, the outer edge of the chain track at the front side is covered with a front covering iron sheet, a rear connecting plate extending horizontally backward is arranged on the rear covering iron sheet, the push plate longitudinal beam is arranged in parallel below the rear connecting plate and is connected to the rear connecting plate through a connecting element, a front connecting plate extending vertically downward is arranged on the front covering iron sheet, one end of the push plate chain is sleeved on the main push plate sprocket, the other end of the push plate chain is sleeved on the secondary push plate sprocket, the main push plate sprocket is fixedly installed on the push plate main shaft, the push plate main shaft sleeve is installed at one end of the push plate main shaft through a bearing, the push plate main shaft bearing seat is installed at the other end of the push plate main shaft, one end of the telescopic rod is fixedly connected to the push plate main shaft sleeve, the push plate main shaft bearing seat is connected to the bottom plate of the L-shaped plate through a connecting element, the rear of the telescopic column is fixedly connected to the vertical plate of the L-shaped plate, the left end of the telescopic column is arranged in the rectangular tube of the push plate longitudinal beam, the input end of the push plate main shaft is connected to the output shaft of the push plate main shaft motor, the push plate main shaft motor is installed on the bottom plate of the L-shaped plate through a connecting element, the secondary push plate sprocket is fixedly installed on the push plate secondary shaft, the front push plate secondary shaft sleeve is installed at the front end of the push plate secondary shaft through a bearing, the rear push plate secondary shaft sleeve is installed at the rear end of the push plate secondary shaft through a bearing, the front push plate secondary shaft sleeve is fixedly connected to the rear lifting beam through a front connecting block, the rear push plate secondary shaft sleeve is fixedly connected to the push plate longitudinal beam through a rear connecting block, the two push plate assemblies are evenly arranged on the push plate chain, several support short beams are evenly arranged between the front connecting plate and the push plate longitudinal beam along the longitudinal center line of the push plate mechanism, one end of the support short beam is fixedly connected to the push plate longitudinal beam, the other end of the support short beam is fixedly connected to the front connecting plate, the fixing plate is located between the upper and lower chains of the push plate chain, one end of the fixing plate is fixedly connected to the telescopic rod, the other end of the fixing plate is fixedly connected to the telescopic column, the push plate chain adjusting nut is fixedly connected to the right support short beam, and the chain adjusting bolt is threadedly connected to the push plate chain adjusting nut and abuts against the fixing plate after passing through the support short beam.

[0011] Further, each push plate assembly includes a bent plate, a cushion block, and a push plate. The two bent plates are symmetrically arranged between the two push plate chains with respect to the vertical center line, and the vertical side of each bent plate is fixedly connected to the corresponding push plate chain. A cushion block is arranged on each bent plate, and one end of the push plate is arranged on the two cushion blocks and the bent plate, the cushion block, and the push plate are connected through a connecting element.

[0012] Further, the traveling mechanism includes a hexagonal main shaft, a hexagonal shaft bearing seat, a traveling motor, a main shaft sprocket, a sub-shaft sprocket, a hexagonal sub-shaft, a traveling chain, a sub-shaft bearing seat, a vertical plate, a connecting beam, a driving sprocket, a rear driving wheel, a front driving wheel, a driven sprocket, a follower shaft, a connecting chain, a left sub-shaft sleeve, a right sub-shaft sleeve, a traveling main beam, a traveling sub-beam, a tensioning rod, a fixing block, a tensioning nut, a tensioning bolt, a height adjusting rod, an inclined beam, a hexagonal shaft sleeve, a front articulated plate of the push rod, a push rod motor, and a rear articulated plate of the push rod; the hexagonal main shaft is supported by the hexagonal shaft bearing seat, the output shaft of the traveling motor is connected to the hexagonal main shaft, the main shaft sprocket is fixedly installed at the output end of the hexagonal main shaft, the sub-shaft sprocket is fixedly installed on the hexagonal sub-shaft, the main shaft sprocket and the sub-shaft sprocket are connected by the traveling chain, the hexagonal sub-shaft is supported by the sub-shaft bearing seat, the sub-shaft bearing seat is fixedly connected to the vertical plate, the vertical plate is fixedly connected to the connecting beam, the driving sprocket and the rear driving wheel are both installed in cooperation with the hexagonal sub-shaft, and are axially fixedly connected between the rear driving wheel and the driving sprocket. The front driving wheel and the driven sprocket are both installed on the follower shaft through bearings, and are axially fixedly connected between the front driving wheel and the driven sprocket. The driving sprocket and the driven sprocket are connected by the connecting chain. The left sub-shaft sleeve and the right sub-shaft sleeve are respectively arranged on the left and right sides of the rear driving wheel, and both the left sub-shaft sleeve and the right sub-shaft sleeve are installed on the hexagonal sub-shaft through bearings. One end of the traveling main beam is fixedly connected to the left sub-shaft sleeve, one end of the traveling sub-beam is fixedly connected to the right sub-shaft sleeve, and the other end of the traveling sub-beam is fixedly connected to the traveling main beam. One end of the tensioning rod is fixedly connected to the follower shaft, and the other end of the tensioning rod is arranged in the rectangular tube of the traveling main beam. The fixing block is fixedly connected to the tensioning rod, the tensioning nut is fixedly connected to the traveling main beam, and the tensioning bolt is threadedly connected to the tensioning nut and abuts against the fixing block. The height adjusting rod is vertically arranged and fixedly installed on the traveling main beam. The inclined beam is arranged at a 45° angle with the connecting beam under the connecting beam, and one end of the inclined beam is fixedly connected to the connecting beam, and the other end of the inclined beam is fixedly connected to the hexagonal shaft sleeve. The hexagonal shaft sleeve is sleeved on the hexagonal main shaft through a bearing. The front articulated plate of the push rod is fixedly connected to the inclined beam. The push rod end of the push rod motor is articulated with the front articulated plate of the push rod, and the tail of the push rod motor is articulated with the rear articulated plate of the push rod.

[0013] Further, the tray loading mechanism includes a front beam, a rear beam, a left beam, a supporting frame beam, a positioning plate, a pillar, a front tension beam, a rear tension beam, a folding frame, a hinge seat, a gas spring hydraulic rod, a corner plate, a hydraulic rod seat, a connecting seat and a tray loading frame; the front beam and the rear beam are arranged in parallel, the left beam is arranged at the left end of the front beam and the rear beam, and both ends of the left beam are fixedly connected to the front beam and the rear beam respectively. The two supporting frame beams are both arranged in parallel with the left beam, and both ends of the supporting frame beam are fixedly connected to the front beam and the rear beam respectively. The positioning plate is fixedly connected to the front end of the front beam, the pillar is vertically and fixedly connected to the lower part of the right end of the rear beam, the front tension beam is arranged below the front beam and one end of it is fixedly connected to the front beam, one end of the rear tension beam is fixedly connected to the rear beam, and the other end of the rear tension beam is fixedly connected to the pillar. The folding frame is arranged on the left beam, and the folding frame and the hinge seat are hinged by a pin shaft. The hinge seat is fixedly installed on the left beam. One end of the gas spring hydraulic rod is hinged to the corner plate, and the other end of the gas spring hydraulic rod is hinged to the hydraulic rod seat. The corner plate is fixedly connected to the folding frame, the hydraulic rod seat is fixedly connected to the connecting seat, the left end of the connecting seat is fixedly connected to the front beam, and the tray loading frame is placed on the supporting frame beam. The tray loading frame is provided with a first tray loading grid, a second tray loading grid, a third tray loading grid, a fourth tray loading grid and a fifth tray loading grid at equal intervals from top to bottom.

[0014] The utility model has the following beneficial effects compared with the prior art:

[0015] The traveling mechanism of the utility model drives the main frame to move forward along the ground track; the tray lifting mechanism cooperates with the traveling mechanism to lift five seedling trays at the same time and transport them to the lifting frame; the lifting mechanism and the tray pushing mechanism cooperate to transport the seedling trays to the tray loading frame in the tray loading mechanism. Finally, only one person needs to carry the tray loading frame away and send it to the transport vehicle. The whole process of lifting, transporting and loading the trays is automatically completed. With the utility model, one person can lift, transport, load the trays and send them to the transport vehicle 600 seedling trays in one hour, the operation efficiency is significantly improved, and the operation cost is reduced at the same time. Description of the Drawings

[0016] Figure 1 is the top view of the overall structure of the utility model;

[0017] Figure 2 is Figure 1 the M-M sectional view of

[0018] Figure 3 is the state diagram of the lifting mechanism C rising horizontally;

[0019] Figure 4 is the front view of the main frame A;

[0020] Figure 5 is Figure 4 the top view of

[0021] Figure 6 is Figure 5 the left view of

[0022] Figure 7 is Figure 5 the K-K sectional view of

[0023] Figure 8 the top view of the turntable mechanism B;

[0024] Fig. 9 is Figure 8 the partial enlarged view Ⅰ of (removing the connecting pipe B21;

[0025] Fig.10 the front view of the turntable mechanism B (removing the upper transmission shaft B4, the middle transmission shaft B5, the lower transmission shaft B6, and the reinforcing rod B19);

[0026] Fig.11 is Fig.10 the right view of

[0027] Fig.12 is Fig.10 the partial enlarged view Ⅱ of

[0028] Fig.13 the front view of the lifting mechanism C;

[0029] Fig.14 is Fig.13 the J-J sectional view of

[0030] Fig.15 is Fig.14 the N-N sectional view of (the lifting frame C15 in the raised state);

[0031] Fig.16 is Fig.14 the N-N sectional view of (the lifting frame C15 in the initial state);

[0032] Fig.17 is Fig.14 the partial enlarged view Ⅲ of

[0033] Fig.18 is Fig.16 the H-H sectional view of

[0034] Fig.19 the top view of the pushing plate mechanism D (with the lifting mechanism C in the figure);

[0035] Fig. 20 the top view of the pushing plate mechanism D (removing the lifting mechanism C from the figure);

[0036] Fig.21 is Fig.19 the partial enlarged view Ⅳ of (removing the rear connecting plate D3-1);

[0037] Fig. 22 is Fig.19Partial enlarged view of part Ⅴ (removing the rear connecting plate D3-1);

[0038] Fig.23 is Fig.19 Partial enlarged view of part Ⅳ (removing the rear connecting plate D3-1 and the push plate assembly D20);

[0039] Fig.24 is Fig.19 P-P sectional view of

[0040] Fig.25 Top view of the traveling mechanism E;

[0041] Fig.26 is Fig.25 View from direction S of

[0042] Fig. 27 is Fig.25 View from direction T of

[0043] Fig.28 is Fig.25 View from direction L of (i.e., schematic diagram of the positions of the hexagonal main shaft E1, the sub-shaft sprocket E5, the hexagonal sub-shaft E6, the traveling chain E7, the connecting beam E10, the inclined beam E26, the hexagonal shaft bushing E27, and the front-end articulated plate E28 of the push rod);

[0044] Fig.29 is Fig.25 R-R sectional view of (i.e., schematic diagram of the positions of the hexagonal main shaft E1, the hexagonal shaft bearing block E2, the sub-shaft sprocket E5, the hexagonal sub-shaft E6, the traveling chain E7, the connecting beam E10, the inclined beam E26, and the front-end articulated plate E28 of the push rod);

[0045] Fig.30 is Fig.25 Partial enlarged view of part Ⅵ (removing the connecting beam E10);

[0046] Fig.31 is Fig.30 Partial enlarged view of part Ⅶ;

[0047] Fig.32 Front view of the tray loading mechanism F;

[0048] Fig.33 is Fig.32 Left view of (removing the folding frame F9 and the gas spring hydraulic rod F11);

[0049] Fig.34 is Fig.32 Top view of (removing the tray loading frame F15);

[0050] Fig.35 is Fig.32 Right view of (removing the gas spring hydraulic rod F11 and the tray loading frame F15). Detailed implementation mode

[0051] Detailed implementation mode 1: In combination with Figure 1 、 Figure 2 and Figure 3 describe this implementation mode. This implementation mode includes a main frame A, a disk lifting mechanism B, a lifting mechanism C, a disk pushing mechanism D, a traveling mechanism E and a disk loading mechanism F. The disk lifting mechanism B is arranged in front of the main frame A, and the main disk lifting beam B1 on the disk lifting mechanism B is fixedly connected to the outer beam A2 on the main frame A. See Figure 1 The lifting mechanism C is located above the main frame A, and the column C9 on the lifting mechanism C is fixedly connected to the main frame beam A1 on the main frame A. See Figure 2 、See Figure 3 The disk pushing mechanism D is arranged in parallel behind the lifting mechanism C, and the front covering iron sheet D4 on the disk pushing mechanism D is connected to the rear lifting beam C15-2 on the lifting mechanism C through a connecting element. See Fig.24 The traveling mechanism E is arranged on the left side, right side and rear of the main frame A, that is, the two traveling main beams E19 on the traveling mechanism E are symmetrically arranged on the left and right sides of the main frame A. See Figure 1 The hexagonal main shaft E1 on the traveling mechanism E is located behind the main frame A, and the hexagonal shaft bearing seat E2 for supporting the hexagonal main shaft E1 is connected to the bearing seat support plate A9 on the main frame A through a connecting element. See Figure 1 、 Fig.25 、 Fig.29 The rear drive wheel E12 and the front drive wheel E13 on the traveling mechanism E move forward or backward along the ground track Q. See Figure 1 、 Figure 2 、 Figure 3 The disk loading mechanism F is arranged at the left end of the main frame A, and the disk loading mechanism F is directly opposite to the lifting frame C15 on the lifting mechanism C. See Figure 1 The support column F6 on the disk loading mechanism F is fixedly connected to the main frame beam A1 on the main frame A. See Figure 1 、 Fig.32 The front pulling beam F7 on the disk loading mechanism F is fixedly connected to the support rod B20 on the disk lifting mechanism B. See Fig.11 、 Fig.33 、 Fig.35 The connecting seat F14 on the disk loading mechanism F is fixedly connected to the support rod B20 on the disk lifting mechanism B. See Fig.11 、 Fig.33 、 Fig.34 . When the lifting mechanism C is in the initial state (before starting), the lifting mechanism C is in an inclined state with the front end lower and the rear end higher, that is, the inclined surface of the lifting mechanism C is the extension of the upper inclined surface of the side inclined plate B2 of the disk lifting mechanism B. See Figure 2 .

[0052] See Figure 1 to Figure 3, the traveling mechanism D drives the whole machine to move forward along the ground track Q; the disk lifting mechanism B can lift five seedling trays G at the same time and transport the seedling trays G to the lifting frame C15 on the lifting mechanism C; the lifting mechanism C completes the flipping (from the inclined state to the horizontal state) and lifting of the lifting frame C15. Since the lifting frame C1 is connected to the tray pushing mechanism D, the tray pushing mechanism D and the lifting frame C15 complete flipping and lifting together. At the same time, the tray pushing mechanism D also pushes the seedling tray G from the right end into the tray loading mechanism F at the left end, and the tray loading mechanism F carries five seedling trays G.

[0053] See Figures 4 to 7 , the main frame A includes a frame main beam A1, outer beams A2, intermediate beams A3, inner beams A4, bridge A5, short beams A6, positioning blocks A7, legs A8 and bearing seat support plates A9. Two outer beams A2 are vertically and fixedly connected to the left and right ends in front of the frame main beam A1. The intermediate beam A3 is arranged in parallel between the two outer beams A2 and is fixedly connected to the frame main beam A1. The inner beam A4 is arranged in parallel between the outer beam A2 and the intermediate beam A3 and is fixedly connected to the frame main beam A1. The bridge A5 is arranged between the outer beam A2 and the inner beam A4 and is arranged in parallel with the frame main beam A1. The two ends of the bridge A5 are fixedly connected to the outer beam A2 and the inner beam A4. A short beam A6 is vertically and fixedly connected between the bridge A5 and the frame main beam A1. A positioning block A7 is fixedly connected to the upper end surface of each outer beam A2 at the front end. A leg A8 is vertically and fixedly connected to the upper end surface of each inner beam A4. Several bearing seat support plates A9 are fixedly connected to the frame main beam A1. The positioning block A7 is used to position the disk lifting main beam B1, see Figure 1 、 Figure 8 . The leg A8 is used to support the lifting frame C15, see Figure 2 、 Fig.16 . The bearing seat support plate A9 is used to connect the hexagonal shaft bearing seat E2, see Figure 1 、 Fig.29 . The column C9 on the lifting mechanism C is fixedly connected to the frame main beam A1, see Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 . The push rod tail end hinge plate E30 on the traveling mechanism E is fixedly connected to the front end of the short beam A6, see Figure 5 、 Figure 7 、 Fig.30 .

[0054] See Figure 8 to Figure 12, the starting plate mechanism B includes a starting plate main beam B1, side inclined plates B2, intermediate inclined plates B3, an upper transmission shaft B4, a middle transmission shaft B5, a lower transmission shaft B6, an intermediate bearing seat B7, side bearing seats B8, a starting plate motor B9, an input sprocket B10, a first sprocket B11, a first chain B12, a second sprocket B13, a third sprocket B14, a second chain B15, a fourth sprocket B16, a fifth sprocket B17, a third chain B18, a reinforcing rod B19, a support rod B20, a connecting pipe B21, a telescopic pipe B22, a guide pipe B23, a height adjustment bolt B24, and a small gear B25; two side inclined plates B2 are located in front of the starting plate main beam B1 and are symmetrically fixed at the left and right ends of the starting plate main beam B1. Several intermediate inclined plates B3 are arranged in parallel between the two side inclined plates B2 and are fixed to the starting plate main beam B1. See Figure 8 , the side inclined plates B2 and the intermediate inclined plates B3 have the same shape. The front end of the side inclined plate B2 has a sharp angle δ. The first angle α1 between the bottom inclined side of the side inclined plate B2 and the horizontal plane is 7° - 10°, and the second angle α2 between the upper inclined side of the side inclined plate B2 and the horizontal plane is 15° - 20°. See Fig.11 ; the upper transmission shaft B4, the middle transmission shaft B5, and the lower transmission shaft B6 are arranged in sequence from the back to the front between the two side inclined plates B2. The upper transmission shaft B4, the middle transmission shaft B5, and the lower transmission shaft B6 all pass through several intermediate inclined plates B3. See Figure 8 、 Fig. 9 , at the connection between the upper transmission shaft B4 and the intermediate inclined plate B3, an intermediate bearing seat B7 is provided. The intermediate bearing seat B7 is sleeved on the upper transmission shaft B4 and is fixed to the corresponding intermediate inclined plate B3. See Figure 8 、 Fig. 9 , both ends of the upper transmission shaft B4 are respectively supported in the side bearing seats B8. At the connection between the middle transmission shaft B5 and the intermediate inclined plate B3, an intermediate bearing seat B7 is provided. The intermediate bearing seat B7 is sleeved on the middle transmission shaft B5 and is fixed to the corresponding intermediate inclined plate B3. Both ends of the middle transmission shaft B5 are respectively supported in the side bearing seats B8. At the connection between the lower transmission shaft B6 and the intermediate inclined plate B3, an intermediate bearing seat B7 is provided. The intermediate bearing seat B7 is sleeved on the lower transmission shaft B6 and is fixed to the corresponding intermediate inclined plate B3. Both ends of the lower transmission shaft B6 are respectively supported in the side bearing seats B8. The side bearing seats B8 are fixed to the corresponding side inclined plates B2. See Figure 8 、 Fig. 9 ; the starting plate motor B9 is fixedly installed on one of the intermediate inclined plates B3, and the output shaft of the starting plate motor B9 passes through the intermediate inclined plate B3. The input sprocket B10 is fixedly installed on the output shaft of the starting plate motor B9. The first sprocket B11 is fixedly installed on the upper transmission shaft B4. The input sprocket B10 and the first sprocket B11 are connected by the first chain B12. The second sprocket B13 is fixedly installed on the upper transmission shaft B4. The third sprocket B14 is fixedly installed on the middle transmission shaft B5. The second sprocket B13 and the third sprocket B14 are connected by the second chain B15. See Figure 8 、 Fig. 9 The fourth sprocket B16 is fixedly installed on the middle transmission shaft B5, and the fifth sprocket B17 is fixedly installed on the lower transmission shaft B6. The fourth sprocket B16 and the fifth sprocket B17 are connected by a third chain B18, as shown in Fig. 9 The reinforcing rod B19 is located in front of the lower transmission shaft B6 and passes through the side inclined plate B2 and the middle inclined plate B3, and connection elements are used to fix the reinforcing rod B19 to the side inclined plate B2 and the middle inclined plate B3, as shown in Figure 8 Two support rods B20 are symmetrically arranged at both ends of the main beam B1 and are fixedly connected to the main beam B1, as shown in Fig.10 and the support rod B20 inclines forward, as shown in Fig.11 The inclination angle β of the support rod B20 is 15° to 18°, as shown in Fig.11 ; The connecting pipe B21 is arranged parallel to the upper part of the main beam B1 of the winding disc and is fixedly connected to the support rod B20, as shown in Fig.10 To prevent the lifting mechanism C from colliding with the connecting pipe B21 when descending, the support rod B20 is inclined forward. Two telescopic pipes B22 are symmetrically arranged at both ends of the connecting pipe B21, and the telescopic pipes B22 are arranged inside the connecting pipe B21, as shown in Fig.10 Two guide pipes B23 are symmetrically fixedly connected to the outer ends of the two telescopic pipes B22, and the guide pipes B23 are arranged vertically, as shown in Fig.10 、 Fig.12 The height adjustment bolt B24 passes through the guide pipe B23, as shown in Fig.12 Several small gears B25 are arranged on the upper transmission shaft B4, the middle transmission shaft B5 and the lower transmission shaft B6, as shown in Figure 8 The small gears B25 rotate along with the upper transmission shaft B4, the middle transmission shaft B5 and the lower transmission shaft B6 and push the seedling tray G to move upward. The lower end of the height adjustment bolt B24 is threadedly connected to the height adjustment rod E25 on the traveling mechanism D, and the height of the rear drive wheel E12 and the front drive wheel E13 on the traveling mechanism D is adjusted by threading to ensure that the rear drive wheel E12 and the front drive wheel E13 can contact the ground track Q, as shown in Fig.26 The telescopic pipe B22 can slide inside the connecting pipe B21. The purpose is to adjust the distance between the left and right rear drive wheels E12 and the left and right front drive wheels E13 on the traveling mechanism D to adapt to the distance between the left and right ground tracks Q, as shown in Figure 1 、 Fig.10 .

[0055] Working principle of the starting tray mechanism B: The starting tray motor B9 starts, and the input sprocket B10 rotates accordingly. The first sprocket B11 is driven to rotate through the first chain B12, and the upper transmission shaft B4 rotates accordingly. The transmission shaft B4 drives the second sprocket B13 to rotate, and the third sprocket B14 is driven to rotate through the second chain B15. The middle transmission shaft B5 rotates accordingly. The middle transmission shaft B5 drives the fourth sprocket B16 to rotate, and the fifth sprocket B17 is driven to rotate through the third chain B18. The lower transmission shaft B6 rotates accordingly. While the upper transmission shaft B4, the middle transmission shaft B5, and the lower transmission shaft B6 are rotating, several small gears B25 on them also rotate accordingly. The small gears B25 rotate and drive the seedling tray G to move upward. See Figure 8 、 Fig. 9 。

[0056] See Figure 13 to Figure 18 , the lifting mechanism C includes a lifting upper shaft C1, a lifting upper shaft bearing seat C2, a lifting motor C3, a lifting upper shaft sprocket C4, a lifting lower shaft sprocket C5, a lifting lower shaft C6, a lifting chain C7, a lifting lower shaft bearing seat C8, a column C9, a guide rail C10, a slider C11, a linkage plate C12, a slider connection angle plate C13, a lifting rod C14, a lifting frame C15, a pin sleeve C16, a lifting frame connection plate C17, a pin C18, a support column C19, and a positioning section C20; both ends of the lifting upper shaft C1 are supported by the lifting upper shaft bearing seat C2, and the lifting upper shaft bearing seat C2 is connected to the column C9 through a connecting element. See Fig.13 , the input end of the lifting upper shaft C1 is connected to the input shaft of the lifting motor C3. The lifting motor C3 is fixedly installed on the motor plate, and the motor plate is fixedly connected to the column C9. The lifting upper shaft sprocket C4 is fixedly installed on the lifting upper shaft C1. See Fig.13 , the lifting lower shaft sprocket C5 is fixedly installed on the lifting lower shaft C6. The lifting upper shaft sprocket C4 is connected to the lifting lower shaft sprocket C5 through the lifting chain C7. The lifting lower shaft C6 is supported by the lifting lower shaft bearing seat C8, and the lifting lower shaft bearing seat C8 is connected to the column C9 through a connecting element. See Fig.13 , the guide rail C10 is fixedly installed in front of the column C9. The slider C11 is slidably connected to the guide rail C10. See Fig.13 、 Fig.17 , the linkage plate C12 is fixedly connected to the slider C11. One side of the slider connection angle plate C13 is connected to the linkage plate C12 through a connecting element, and the other side of the slider connection angle plate C13 is fixedly connected to the lifting chain C7. See Fig.17 , the lifting rod C14 is horizontally arranged under the lifting frame C15. See Fig.14 、 Fig.15 、 Fig.16 , one end of the lifting rod C14 is fixedly connected to the linkage plate C12. See Fig.15 、 Fig.16 、 Fig.17 , the other end of the lifting rod C14 is fixedly connected to the pin sleeve C16. See Fig.18 Two lifting frame connecting plates C17 are symmetrically arranged at both ends of the pin shaft sleeve C16. The pin shaft C18 is hinged in the pin shaft sleeve C16 and the lifting frame connecting plate C17, as shown in Fig.15 、 Fig.16 、 Fig.18 The lifting frame connecting plate C17 is fixedly connected to the lifting frame C15, as shown in Fig.15 、 Fig.16 、 Fig.18 The support column C19 is fixedly connected to the upper end face of the lifting rod C14 and close to the side of the linkage plate C12, as shown in Fig.15 、 Fig.16 The support column C19 is used to support the push plate mechanism D, as shown in Figure 3 ; Five positioning nodes C20 are arranged at equal intervals from top to bottom on one of the lifting chains C7, as shown in Fig.13 The uppermost positioning node C20 is the highest position where the lifting frame C15 rises, as shown in Fig.13 The lowermost positioning node C20 is the position when the lifting frame C15 is horizontal before rising, as shown in Figure 2 The distance between every two adjacent positioning nodes C20 should be greater than the height of the seedling tray G. The height of the seedling tray G refers to the height of the seedlings + the tray. The column C9 is fixedly connected to the main beam A1 of the frame, as shown in Fig.13 The lifting frame C15 includes a front lifting beam C15-1, a rear lifting beam C15-2, a left lifting beam C15-3, a right lifting beam C15-4 and several idler rollers C15-5. The front lifting beam C15-1 and the rear lifting beam C15-2 are arranged front and rear. The left lifting beam C15-3 and the right lifting beam C15-4 are fixedly connected to both ends of the front lifting beam C15-1 and the rear lifting beam C15-2. The front lifting beam C15-1, the rear lifting beam C15-2, the left lifting beam C15-3 and the right lifting beam C15-4 form a rectangular frame structure. Several idler rollers C15-5 are arranged in parallel between the left lifting beam C15-3 and the right lifting beam C15-4, and both ends of the idler rollers C15-5 are arranged in the front lifting beam C15-1 and the rear lifting beam C15-2, as shown in Fig.14 Three to four strengthening beams C15-6 are arranged in parallel between the left lifting beam C15-3 and the right lifting beam C15-4. Both ends of the strengthening beam C15-6 are fixedly connected to the front lifting beam C15-1 and the rear lifting beam C15-2, as shown in Fig.14 .

[0057] Working principle of the lifting mechanism C: The lifting frame C15 rises: Before the lifting mechanism C rises, that is, in the initial state, as shown in Figure 2 When the seedling tray G is transported to the lifting frame C15 by the tray lifting mechanism B, the lifting motor C3 starts to rotate forward. The upper lifting shaft C1 rotates, and the upper lifting shaft sprocket C4 rotates accordingly and drives the lifting chain C7 to drive. The linkage plate C12 and the slider connecting angle plate C13 move upward accordingly and drive the slider C11 and the lifting rod C14 to move upward, as shown in Fig.14 , Fig.15 , Fig.16 , Fig.17 , the lifting rod C14 moves upward and drives the pin shaft sleeve C16 to move upward. At the same time, the lifting frame connecting plate C17 rotates counterclockwise around the pin shaft C18, and drives the lifting frame C15 to rotate counterclockwise. See Fig.16 . Until the lifting frame C15 is horizontal (i.e., the support push plate mechanism E falls on the support column C19), it continues to rise with the lifting rod C14. When it reaches the top positioning section C20, the lifting motor C3 stops rotating. The lifting frame C15 descends: The lifting motor C3 is reversely started, the lifting upper shaft C1 rotates, the lifting upper shaft sprocket C4 rotates accordingly and drives the lifting chain C7 to transmit. The connecting plate C12, the slider connecting angle plate C13, the slider C11 and the lifting rod C14 move downward accordingly and drive the lifting frame C15 to descend.

[0058] See Figure 19 to Figure 24 , the push plate mechanism D includes a chain track D1, a push plate chain D2, a rear covering iron sheet D3, a front covering iron sheet D4, a push plate longitudinal beam D5, a push plate main sprocket D6, a push plate sub-sprocket D7, a push plate main shaft D8, a push plate main shaft sleeve D9, a push plate main shaft bearing seat D10, a telescopic rod D11, an L-shaped plate D12, a telescopic column D13, a push plate main shaft motor D14, a push plate sub-shaft D15, a push plate sub-shaft front shaft sleeve D16, a push plate sub-shaft rear shaft sleeve D17, a front connecting block D18, a rear connecting block D19, a push plate assembly D20, a support short beam D23, a fixing plate D24, a push plate chain adjusting nut D25 and a chain adjusting bolt D26; The two chain tracks D1 are symmetrically arranged with respect to the longitudinal center line O-O of the push plate mechanism. See Fig.19 , Fig.24 , a push plate chain D2 is installed in each chain track D1. See Fig.24 , and the inner link D2-1 of the push plate chain D2 is located inside the chain track D1, and the outer link D2-2 of the push plate chain D2 is located outside the chain track D1. See Fig.24 , the chain track D1 is a commercially available product, and the material of the chain track D1 is nylon; The outer edge of the rear chain track D1 is covered with a rear covering iron sheet D3, and the outer edge of the front chain track D1 is covered with a front covering iron sheet D4. See Fig.24 , a rear connecting plate D3-1 extending horizontally backward is provided on the rear covering iron sheet D3. See Fig.24 , the push plate longitudinal beam D5 is arranged parallel to the lower surface of the rear connecting plate D3-1 and is connected to the rear connecting plate D3-1 through a connecting element. A front connecting plate D4-1 extending vertically downward is provided on the front covering iron sheet D4, and the front connecting plate D4-1 is connected to the rear lifting beam C15-2 through a connecting element. See Fig.24 , one end of the push plate chain D2 is sleeved on the push plate main sprocket D6. See Fig.21 , Fig.23, the other end of the push plate chain D2 is sleeved on the push plate sub-sprocket D7, see Fig. 22 , the push plate main sprocket D6 is fixedly installed on the push plate main shaft D8, see Fig.21 、 Fig.23 , the push plate main shaft sleeve D9 is installed at one end of the push plate main shaft D8 through a bearing, see Fig.21 、 Fig.23 , the push plate main shaft bearing seat D10 is installed at the other end of the push plate main shaft D8, see Fig.21 、 Fig.23 , one end of the telescopic rod D11 is fixedly connected to the push plate main shaft sleeve D9, and the other end of the telescopic rod D11 is arranged in the rectangular tube of the rear lifting beam C15-2. The telescopic rod D11 can move in the rectangular tube of the rear lifting beam C15-2 to adjust the tightness of the push plate chain D2, see Fig.21 、 Fig.23 , the push plate main shaft bearing seat D10 is connected to the bottom plate of the L-shaped plate D12 through a connecting element, and the back of the telescopic column D13 is fixedly connected to the vertical plate of the L-shaped plate D12, see Fig.21 、 Fig.23 , the left end of the telescopic column D13 is arranged in the rectangular tube of the push plate longitudinal beam D5, see Fig.21 、 Fig.23 , the input end of the push plate main shaft D8 is connected to the output shaft of the push plate main shaft motor D14, and the push plate main shaft motor D14 is installed on the bottom plate of the L-shaped plate D12 through a connecting element, see Fig.21 、 Fig.23 , the push plate sub-sprocket D7 is fixedly installed on the push plate sub-shaft D15. The front shaft sleeve D16 of the push plate sub-shaft is installed at the front end of the push plate sub-shaft D15 through a bearing, and the rear shaft sleeve D17 of the push plate sub-shaft is installed at the rear end of the push plate sub-shaft D15 through a bearing, see Fig. 22 , the front shaft sleeve D16 of the push plate sub-shaft is fixedly connected to the rear lifting beam C15-2 through the front connecting block D18, see Fig. 22 , the rear shaft sleeve D17 of the push plate sub-shaft is fixedly connected to the push plate longitudinal beam D5 through the rear connecting block D19, see Fig. 22 , the two push plate assemblies D20 are evenly arranged on the push plate chain D2, see Fig. 20 , several support short beams D23 are evenly arranged along the longitudinal center line O-O of the push plate mechanism between the front connecting plate D4-1 and the push plate longitudinal beam D5, see Fig.19 、 Fig. 20 、 Fig.24 , one end of the support short beam D23 is fixedly connected to the push plate longitudinal beam D5, and the other end of the support short beam D23 is fixedly connected to the front connecting plate D4-1. The fixing plate D24 is located between the upper and lower chains of the push plate chain D2, see Fig.23 , one end of the fixing plate D24 is fixedly connected to the telescopic rod D11, and the other end of the fixing plate D24 is fixedly connected to the telescopic column D13, see Fig.23, the push plate chain adjusting nut D25 is fixedly connected to the right support short beam D23. The chain adjusting bolt D26 is threadedly connected to the push plate chain adjusting nut D25 and passes through the support short beam D23 and then abuts against the fixed plate D24. See Fig.23 , when it is necessary to adjust the tightness of the push plate chain D2, loosen the chain adjusting bolt D26 to make the chain adjusting bolt D26 leave the fixed plate D24. The telescopic rod D11 moves inside the rectangular tube of the rear lifting beam C15-2, and the telescopic column D13 moves inside the rectangular tube of the push plate longitudinal beam D5 to adjust the tightness of the push plate chain D2. See Fig.21 、 Fig.23 ; when the tightness of the push plate chain D2 is adjusted to be appropriate, tighten the chain adjusting bolt D26 so that the chain adjusting bolt D26 abuts against the fixed plate D24. See Fig.21 、 Fig.23 . Each push plate assembly D20 includes a bent plate D20-1, a cushion block D20-2, and a push plate D20-3. The two bent plates D20-1 are symmetrically arranged between the two push plate chains D2 with respect to the vertical center line W-W, and the vertical side of each bent plate D20-1 is fixedly connected to the corresponding push plate chain D2. Each bent plate D20-1 is equipped with a cushion block D20-2 on it. One end of the push plate D20-3 is arranged on the two cushion blocks D20-2, and the bent plate D20-1, the cushion block D20-2, and the push plate D20-3 are connected through a connecting element. The other end of the push plate D20-3 is located above the lifting frame C15. See Fig.24 .

[0059] The working principle of the push plate mechanism D: Before the push plate mechanism D is started (i.e., the initial state), one of the push plate assemblies D20 is located at the right end of the push plate longitudinal beam D5. See Fig.21 , when the lifting frame C15 drives the seedling tray G to the highest positioning section C20 and the lifting motor C3 stops, see Fig.13 , the push plate main shaft motor D14 is started and drives the push plate main shaft D8 and the push plate main sprocket D6 to rotate. The push plate chain D2 is driven accordingly and drives the push plate assembly D20 to move from right to left. See Fig.19 、 Fig. 20 , the push plate assembly D20 pushes the seedling tray G onto the loading mechanism F. See Fig.13 .

[0060] See Figure 25 to Figure 31, the traveling mechanism E includes a hexagonal main shaft E1, a hexagonal shaft bearing block E2, a traveling motor E3, a main shaft sprocket E4, a secondary shaft sprocket E5, a hexagonal secondary shaft E6, a traveling chain E7, a secondary shaft bearing block E8, a vertical plate E9, a connecting beam E10, a driving sprocket E11, a rear driving wheel E12, a front driving wheel E13, a driven sprocket E14, a follower shaft E15, a connecting chain E16, a left secondary shaft bushing E17, a right secondary shaft bushing E18, a traveling main beam E19, a traveling secondary beam E20, a tension rod E21, a fixing block E22, a tension nut E23, a tension bolt E24, a height adjustment rod E25, an inclined beam E26, a hexagonal shaft bushing E27, a front articulated plate of the push rod E28, a push rod motor E29, and a rear articulated plate of the push rod E30; the hexagonal main shaft E1 is supported by the hexagonal shaft bearing block E2, and the hexagonal shaft bearing block E2 is connected to the bearing block support plate A9 through a connecting element, see Fig.29 , the output shaft of the traveling motor E3 is connected to the hexagonal main shaft E1, and the main shaft sprocket E4 is fixedly installed at the output end of the hexagonal main shaft E1, see Fig.25 , the secondary shaft sprocket E5 is fixedly installed on the hexagonal secondary shaft E6, see Fig.25 、 Fig. 27 、 Fig.28 、 Fig.29 、 Fig.30 , the main shaft sprocket E4 and the secondary shaft sprocket E5 are connected by the traveling chain E7, see Fig.25 、 Fig.30 , the hexagonal secondary shaft E6 is supported by the secondary shaft bearing block E8, see Fig. 27 , the secondary shaft bearing block E8 is fixedly connected to the vertical plate E9, and the vertical plate E9 is fixedly connected to the connecting beam E10, see Fig. 27 , both the driving sprocket E11 and the rear driving wheel E12 are installed in cooperation with the hexagonal secondary shaft E6, and the rear driving wheel E12 is axially fixedly connected to the driving sprocket E11, see Fig. 27 、 Fig.30 , both the front driving wheel E13 and the driven sprocket E14 are installed on the follower shaft E15 through bearings, see Fig.26 、 Fig.30 、 Fig.31 , the front driving wheel E13 is axially fixedly connected to the driven sprocket E14, see Fig.30 、 Fig.31 , the driving sprocket E11 and the driven sprocket E14 are connected by the connecting chain E16, see Fig.26 、 Fig.30 , the front driving wheel E13 and the rear driving wheel E12 are longitudinally aligned, see Fig.30 , the left secondary shaft bushing E17 and the right secondary shaft bushing E18 are respectively arranged on the left and right sides of the rear driving wheel E12, and both the left secondary shaft bushing E17 and the right secondary shaft bushing E18 are installed on the hexagonal secondary shaft E6 through bearings, see Fig.30 , one end of the traveling main beam E19 is fixedly connected to the left secondary shaft bushing E17, see Fig.30, one end of the walking auxiliary beam E20 is fixedly connected to the right shaft sleeve E18 of the auxiliary shaft, and the other end of the walking auxiliary beam E20 is fixedly connected to the walking main beam E19. One end of the tensioning rod E21 is fixedly connected to the follower shaft E15, and the other end of the tensioning rod E21 is arranged in the rectangular tube of the walking main beam E19. See Fig.30 , the fixing block E22 is fixedly connected to the tensioning rod E21, the tensioning nut E23 is fixedly connected to the walking main beam E19, and the tensioning bolt E24 is threadedly connected to the tensioning nut E23 and abuts against the fixing block E22. See Fig.31 ; When it is necessary to adjust the tightness of the connecting chain E16, unscrew the tensioning bolt E24 to make the tensioning bolt E24 leave the fixing block E22. The tensioning rod E21 moves along the rectangular tube of the walking main beam E19. When the tightness of the connecting chain E16 is appropriate, screw the tensioning bolt E24 to make the tensioning bolt E24 abut against the fixing block E22. See Fig.31 ; The height adjustment rod E25 is vertically arranged and fixedly installed on the walking main beam E19. There is a threaded hole inside the height adjustment rod E25, which is used to connect with the height adjustment bolt B24 on the winding mechanism B. See Fig.25 ; The inclined beam E26 is arranged at an angle of 45° with the connecting beam E10 and is below the connecting beam E10. See Fig. 27 、 Fig.28 , and one end of the inclined beam E26 is fixedly connected to the connecting beam E10, and the other end of the inclined beam E26 is fixedly connected to the hexagonal shaft sleeve E27. The hexagonal shaft sleeve E27 is sleeved on the hexagonal main shaft E1 through a bearing. See Fig. 27 , the front articulated plate E28 of the push rod is fixedly connected to the inclined beam E26. See Fig. 27 、 Fig.28 , the push rod end of the push rod motor E29 is articulated with the front articulated plate E28 of the push rod, and the tail of the push rod motor E29 is articulated with the rear articulated plate E30 of the push rod. See Fig.29 , the rear articulated plate E30 of the push rod is fixedly connected to the short beam A6 on the main frame A. See Figure 5 、 Figure 7 、 Fig.30 . The hexagonal shaft bearing seat E2 is connected to the bearing seat support plate A9 on the main frame A through a connecting element. See Figure 1 、 Fig.29 . The push rod motor E29 is a commercially available product.

[0061] Working principle of the walking mechanism E: When it is necessary for the walking mechanism E to drive the whole machine forward, the walking motor E3 starts, and the main shaft sprocket E4 rotates accordingly, driving the auxiliary shaft sprocket E5 to rotate through the walking chain E7. See Fig.25 、 Fig.29, the hexagonal auxiliary shaft E6 rotates accordingly and drives the rear drive wheel E12 and the driving sprocket E11 to rotate. The driven sprocket E14 and the front drive wheel E13 are driven to rotate through the connecting chain E16, so as to realize the walking mechanism E driving the whole machine to move forward. When it is necessary to adjust the height of the front drive wheel E13, since the height adjustment bolt B24 is threadedly connected to the height adjustment rod E25, see Fig.26 , the height of the front end of the walking main beam E19 and the front drive wheel E13 is adjusted by manually rotating the height adjustment bolt B24, see Fig.25 . When it is necessary to adjust the height of the rear drive wheel E12, the push rod motor E29 is started. Since the inclined beam E26 and the connecting beam E10 are arranged obliquely at 45°, see Fig.28 , while the push rod of the push rod motor E29 extends, the inclined beam E26 is driven to rotate counterclockwise around the hexagonal main shaft E1 through the hinge plate E28 at the front end of the push rod, and the connecting beam E10 is driven to move downward, see Fig.28 , the vertical plate E9 and the hexagonal auxiliary shaft E6 also move downward, thus realizing the height adjustment of the rear drive wheel E12, see Fig.28 、 Fig. 27 、 Fig.30 .

[0062] See Figure 32 to Figure 35 , the dish loading mechanism F includes a front beam F1, a rear beam F2, a left beam F3, a bearing frame beam F4, a positioning plate F5, a support column F6, a front pull beam F7, a rear pull beam F8, a folding frame F9, a hinge seat F10, a gas spring hydraulic rod F11, a corner plate F12, a hydraulic rod seat F13, a connecting seat F14 and a dish loading frame F15; the front beam F1 and the rear beam F2 are arranged in parallel, the left beam F3 is arranged at the left end of the front beam F1 and the rear beam F2, and both ends of the left beam F3 are fixedly connected to the front beam F1 and the rear beam F2 respectively. The two bearing frame beams F4 are arranged in parallel with the left beam F3, and both ends of the bearing frame beam F4 are fixedly connected to the front beam F1 and the rear beam F2 respectively. The positioning plate F5 is fixedly connected to the front end of the front beam F1, see Fig.34 , the positioning plate F5 is used to position the dish loading frame F15, see Fig.33 , the support column F6 is vertically and fixedly connected to the lower part of the right end of the rear beam F2, see Fig.32 、 Fig.33 , the front pull beam F7 is arranged below the front beam F1 and one end of it is fixedly connected to the front beam F1, see Fig.32 , the other end of the front pull beam F7 is fixedly connected to the support rod B20 on the dish lifting mechanism B. One end of the rear pull beam F8 is fixedly connected to the rear beam F2, and the other end of the rear pull beam F8 is fixedly connected to the support column F6, see Fig.32 , the folding frame F9 is arranged on the left beam F3, and the folding frame F9 is hinged to the hinge seat F10 through a pin shaft. The hinge seat F10 is fixedly installed on the left beam F3, see Fig.32 、 Fig.34 、 Fig.35, one end of the gas spring hydraulic rod F11 is hinged to the corner plate F12, and the other end of the gas spring hydraulic rod F11 is hinged to the hydraulic rod seat F13. See Fig.34 , the corner plate F12 is fixedly connected to the folding frame F9. See Fig.32 , the hydraulic rod seat F13 is fixedly connected to the connecting seat F14, and the left end of the connecting seat F14 is fixedly connected to the front beam F1. See Fig.34 , the front end of the connecting seat F14 is fixedly connected to the support rod B20 on the disc lifting mechanism B. See Figure 1 , the disc loading frame F15 is placed on the bearing frame beam F4, and the disc loading frame F15 is provided with a first disc loading grid F15-1, a second disc loading grid F15-2, a third disc loading grid F15-3, a fourth disc loading grid F15-4, and a fifth disc loading grid F15-5 at equal intervals from top to bottom. See Fig.32 、 Fig.33 , the five disc loading grids correspond to the lifting positions of the five lifting frames C15 one by one, that is, the height of each disc loading grid should be greater than the height of the seedling tray G. When the machine is not working, the disc loading frame F15 can be removed and the folding frame F9 is in a folded state (i.e., the folding frame F9 is in a horizontal state). At this time, the gas spring hydraulic rod F11 is in a retracted state. See Fig.34 ; when the machine is working, the folding frame F9 is opened to a state perpendicular to the left beam F3. See Fig.32 、 Fig.35 , at this time, the push rod on the gas spring hydraulic rod F11 extends. See Fig.32 , the disc loading frame F15 is placed on the bearing frame beam F4, and the front end of the disc loading frame F15 is positioned by the positioning plate F5. See Fig.32 、 Fig.33 , the left end of the disc loading frame F15 is positioned by the folding frame F9. See Fig.32 , after the five disc loading grids on the disc loading frame F15 are all loaded with the seedling trays G, the disc loading frame F15 loaded with the seedling trays G is removed, and then an empty disc loading frame F15 is placed, and so on. The gas spring hydraulic rod F11 is a commercially available product.

[0063] Working principle of the rice seedling lifting machine: The traveling mechanism E and the disc lifting mechanism B are started at the same time. The traveling mechanism E drives the whole machine to slowly move forward along the ground track Q. While moving, the disc lifting mechanism B simultaneously picks up the five seedling trays G. See Figure 1 、 Figure 2 、 Figure 3 , the traveling mechanism E continues to move forward slowly. When the five seedling trays G are pushed by the small gear B25 and move upward along the upper inclined surface of the side inclined plate B2 to the lifting frame C15 of the lifting mechanism C. See Figure 1 、 Figure 2 、 Figure 3, the traveling mechanism E stops, and at the same time, the winding mechanism B also stops running; the lifting mechanism C starts, the lifting motor C3 rotates forward, and the lifting chain C7 drives the lifting frame C15 to complete the flip to the horizontal state through the slider connecting angle plate C13, linkage plate C12, slider C11, and lifting rod C14 and then continues to rise, as shown in Fig.17 , Fig.16 , Fig.15 , Figure 3 , since the lifting frame C15 is connected to the tray pushing mechanism D, the tray pushing mechanism D flips, rises or falls simultaneously with the lifting frame C15, as shown in Fig.24 , when the lifting frame C15 carrying five seedling trays G rises to the first positioning section C20 (the topmost one), as shown in Fig.13 , the lifting motor C3 stops, and the lifting frame C15 stops at the first positioning section C20 accordingly, as shown in Fig.13 ; the tray pushing mechanism D starts, and the tray pushing chain D2 drives the tray pushing component D20 to move from right to left, as shown in Fig.19 , Fig. 20 , the tray pushing plate D20-3 pushes the first seedling tray G into the first loading cell F15-1 on the loading frame F15, and then the tray pushing mechanism D stops running; the lifting mechanism C is started again, the lifting motor C3 rotates reversely, and the lifting chain C7 drives the lifting frame C15 to descend through the slider connecting angle plate C13, linkage plate C12, slider C11, and lifting rod C14. When the lifting frame C15 descends to the second positioning section C20, the lifting motor C3 stops, and the lifting frame C1 stops accordingly; the tray pushing mechanism D starts, the tray pushing chain D2 drives the tray pushing component D20 to move from right to left, and the tray pushing plate D20-3 pushes the second seedling tray G into the second loading cell F15-2, and then the tray pushing mechanism D stops running; and so on, pushing the third seedling tray G, the fourth seedling tray G, and the fifth seedling tray G into the third loading cell F15-3, the fourth loading cell F15-4, and the fifth loading cell F15-5 respectively. Thus, the work of picking up, transporting, and loading a row (five) of seedling trays G is completed.

Claims

1. A rice seedling tray lifting machine, characterized in that: The tray lifting machine comprises a main frame (A), a tray lifting mechanism (B), a lifting mechanism (C), a tray pushing mechanism (D), a walking mechanism (E) and a tray loading mechanism (F); the tray lifting mechanism (B) is arranged in front of the main frame (A), and a tray lifting main beam (B1) on the tray lifting mechanism (B) is fixedly connected to an outer beam (A2) on the main frame (A); the lifting mechanism (C) is located above the main frame (A), and a column (C9) on the lifting mechanism (C) is fixedly connected to a frame main beam (A1) on the main frame (A); the tray pushing mechanism (D) is arranged in parallel behind the lifting mechanism (C), and a front cladding iron sheet (D4) on the tray pushing mechanism (D) is connected to the lifting mechanism (C) The rear lifting beam (C15-2) on the main frame (A) is connected by a connecting element, the walking mechanism (E) is arranged on the left, right and rear of the main frame (A), that is, the two walking main beams (E19) on the walking mechanism (E) are symmetrically arranged on the left and right sides of the main frame (A), the hexagonal main shaft (E1) on the walking mechanism (E) is located behind the main frame (A), the hexagonal shaft bearing seat (E2) for supporting the hexagonal main shaft (E1) is connected to the bearing seat support plate (A9) on the main frame (A) by a connecting element, and the loading mechanism (F) is arranged at the left end of the main frame (A), and the loading mechanism (F) is opposite to the lifting frame (C15) on the lifting mechanism (C).

2. A rice seedling tray lifting machine according to claim 1, characterized in that: When the lifting mechanism (C) is in the initial state, the lifting mechanism (C) is in an inclined state with the front lower and the back higher, that is, the inclined surface of the lifting mechanism (C) is an extension of the upper end inclined surface of the side inclined plate (B2) of the plate lifting mechanism (B).

3. A rice seedling tray lifting machine according to claim 1 or 2, characterized in that: The main frame (A) comprises a frame main beam (A1), an outer beam (A2), an intermediate beam (A3), an inner beam (A4), a bridge (A5), a short beam (A6), a positioning block (A7), a leg (A8) and a bearing seat support plate (A9); the two outer beams (A2) are vertically fixed to the left and right ends in front of the frame main beam (A1); the intermediate beam (A3) is arranged in parallel between the two outer beams (A2) and is fixed to the frame main beam (A1); the inner beam (A4) is arranged in parallel between the outer beam (A2) and the intermediate beam (A3) and is fixed to the frame main beam (A1), a bridge (A5) is arranged between an outer beam (A2) and an inner beam (A4) and is arranged parallel to a main beam (A1) of a frame, two ends of the bridge (A5) are fixedly connected to the outer beam (A2) and the inner beam (A4), a short beam (A6) is vertically fixedly connected between the bridge (A5) and the main beam (A1) of the frame, a positioning block (A7) is fixedly connected to the upper end face of each outer beam (A2) at the front end, a support leg (A8) is vertically fixedly connected to the upper end face of each inner beam (A4), and a plurality of bearing seat support plates (A9) are fixedly connected to the main beam (A1) of the frame.

4. A rice seedling tray lifting machine according to claim 3, characterized in that: The lifting mechanism (B) comprises a lifting main beam (B1), a side inclined plate (B2), an intermediate inclined plate (B3), an upper transmission shaft (B4), a middle transmission shaft (B5), a lower transmission shaft (B6), an intermediate bearing seat (B7), a side bearing seat (B8), a lifting motor (B9), an input sprocket (B10), a first sprocket (B11), a first chain (B12), a second sprocket (B13), a third sprocket (B14), a second chain (B15), a fourth sprocket (B16), a fifth sprocket (B17), a third chain (B18), a reinforcing rod (B19), a supporting rod (B20), a connecting pipe (B21), a telescopic pipe (B22), a guide pipe (B23), a height adjustment bolt (B24) and a pinion (B25); Two side inclined plates (B2) are located in front of the starting plate main beam (B1) and are symmetrically fixed to the left and right ends of the starting plate main beam (B1). Several intermediate inclined plates (B3) are arranged in parallel between the two side inclined plates (B2) and are fixed to the starting plate main beam (B1). The side inclined plates (B2) and the intermediate inclined plates (B3) have the same shape. The front end of the side inclined plates (B2) has a sharp angle (δ). The upper transmission shaft (B4), the middle transmission shaft (B5) and the lower transmission shaft (B6) are arranged in sequence from back to front between the two side inclined plates (B2). The upper transmission shaft (B4), the middle transmission shaft (B5) and the lower transmission shaft (B6) all pass through several intermediate inclined plates (B3). The connection between the upper transmission shaft (B4) and the intermediate inclined plates (B3) is provided with an intermediate bearing seat (B7). The intermediate bearing seat ( The middle transmission shaft (B5) and the middle inclined plate (B3) are provided with an intermediate bearing seat (B7), which is sleeved on the middle transmission shaft (B5) and fixedly connected to the corresponding middle inclined plate (B3). The two ends of the upper transmission shaft (B4) are respectively supported in the side bearing seats (B8). The connection between the middle transmission shaft (B5) and the middle inclined plate (B3) is provided with an intermediate bearing seat (B7), which is sleeved on the middle transmission shaft (B5) and fixedly connected to the corresponding middle inclined plate (B3). The two ends of the middle transmission shaft (B5) are respectively supported in the side bearing seats (B8). The connection between the lower transmission shaft (B6) and the middle inclined plate (B3) is provided with an intermediate bearing seat (B7), which is sleeved on the lower transmission shaft (B6) and fixedly connected to the corresponding middle inclined plate (B3). The two ends of the lower transmission shaft (B6) are respectively supported in the side bearing seats. (B8), the side bearing seat (B8) is fixedly connected to the corresponding side inclined plate (B2), the disc starting motor (B9) is fixedly mounted on one of the intermediate inclined plates (B3), and the output shaft of the disc starting motor (B9) passes through the intermediate inclined plate (B3), the input sprocket (B10) is fixedly mounted on the output shaft of the disc starting motor (B9), the first sprocket (B11) is fixedly mounted on the upper transmission shaft (B4), the input sprocket (B10) and the first sprocket (B11) are connected through a first chain (B12), the second sprocket (B13) is fixedly mounted on the upper transmission shaft (B4), the third sprocket (B14) is fixedly mounted on the middle transmission shaft (B5), the second sprocket (B13) and the third sprocket (B14) are connected through a second chain (B15), and the fourth sprocket (B16) is fixedly mounted On the middle transmission shaft (B5), the fifth sprocket (B17) is fixedly mounted on the lower transmission shaft (B6), the fourth sprocket (B16) is connected to the fifth sprocket (B17) through the third chain (B18), the reinforcing rod (B19) is located in front of the lower transmission shaft (B6) and passes through the side inclined plate (B2) and the middle inclined plate (B3), and the reinforcing rod (B19) is fixed to the side inclined plate (B2) and the middle inclined plate (B3) by a connecting element, two support rods (B20) are symmetrically arranged at both ends of the main beam (B1) and are fixedly connected to the main beam (B1), and the support rods (B20) are inclined forward, and the inclination angle (β) of the support rods (B20) is 15° to 18°, and the connecting pipe (B21) is arranged in parallel above the starting plate main beam (B1) and is fixedly connected to the support rod (B20),Two telescopic tubes (B22) are symmetrically arranged at both ends of the connecting tube (B21), and the telescopic tube (B22) is arranged inside the connecting tube (B21). Two guide tubes (B23) are symmetrically fixed to the outer ends of the two telescopic tubes (B22), and the guide tubes (B23) are arranged vertically. The height adjustment bolts (B24) pass through the guide tubes (B23). Several small gears (B25) are arranged on the upper transmission shaft (B4), the middle transmission shaft (B5) and the lower transmission shaft (B6).

5. The rice seedling tray lifting machine according to claim 1, characterized in that: The lifting mechanism (C) comprises a lifting upper shaft (C1), a lifting upper shaft bearing seat (C2), a lifting motor (C3), a lifting upper shaft sprocket (C4), a lifting lower shaft sprocket (C5), a lifting lower shaft (C6), a lifting chain (C7), a lifting lower shaft bearing seat (C8), a column (C9), a guide rail (C10), a slider (C11), a linkage plate (C12), a slider connecting angle plate (C13), a lifting rod (C14), a lifting frame (C15), a pin sleeve (C16), a lifting frame connecting plate (C17), a pin (C18), a support column (C19) and a positioning joint (C20); The two ends of the lifting upper shaft (C1) are supported by the lifting upper shaft bearing seat (C2), the lifting upper shaft bearing seat (C2) is connected to the column (C9) through a connecting element, the input end of the lifting upper shaft (C1) is connected to the input shaft of the lifting motor (C3), the lifting upper shaft sprocket (C4) is fixed on the lifting upper shaft (C1), the lifting lower shaft sprocket (C5) is fixed on the lifting lower shaft (C6), the lifting upper shaft sprocket (C4) and the lifting lower shaft sprocket (C5) are connected through a lifting chain (C7), and the lifting The lowering shaft (C6) is supported by a lower lifting shaft bearing seat (C8), the lower lifting shaft bearing seat (C8) is connected to the column (C9) through a connecting element, the guide rail (C10) is fixed in front of the column (C9), the slider (C11) is slidably connected to the guide rail (C10), the linkage plate (C12) is fixed to the slider (C11), one side of the slider connecting the angle plate (C13) is connected to the linkage plate (C12) through a connecting element, and the other side of the slider connecting the angle plate (C13) is connected to the lifting chain (C7), a lifting rod (C14) is horizontally arranged below the lifting frame (C15), one end of the lifting rod (C14) is fixedly connected to the linkage plate (C12), the other end of the lifting rod (C14) is fixedly connected to the pin sleeve (C16), two lifting frame connecting plates (C17) are symmetrically arranged at both ends of the pin sleeve (C16), the pin (C18) is hinged in the pin sleeve (C16) and the lifting frame connecting plate (C17), the lifting frame connecting plate (C17) is fixedly connected to the lifting frame (C15), and the support The column (C19) is fixedly connected to the upper end surface of the lifting rod (C14) and close to the side of the linkage plate (C12). Five positioning nodes (C20) are arranged at equal intervals from top to bottom on one of the lifting chains (C7). The uppermost positioning node (C20) is the highest position of the lifting frame (C15) when it rises, and the lowermost positioning node (C20) is the horizontal position of the lifting frame (C15) before it rises. The distance between each two adjacent positioning nodes (C20) should be greater than the height of the seedling tray (G).

6. A rice seedling tray lifting machine according to claim 5, characterized in that: The lifting frame (C15) comprises a front lifting beam (C15-1), a rear lifting beam (C15-2), a left lifting beam (C15-3), a right lifting beam (C15-4) and a plurality of rollers (C15-5). The front lifting beam (C15-1) and the rear lifting beam (C15-2) are arranged front and back, and the left lifting beam (C15-3) and the right lifting beam (C15-4) are fixedly connected to the front lifting beam (C15-1) and the rear lifting beam (C15 -2), a front lifting beam (C15-1), a rear lifting beam (C15-2), a left lifting beam (C15-3) and a right lifting beam (C15-4) form a rectangular frame structure, a plurality of rollers (C15-5) are arranged in parallel between the left lifting beam (C15-3) and the right lifting beam (C15-4), and both ends of the rollers (C15-5) are arranged in the front lifting beam (C15-1) and the rear lifting beam (C15-2).

7. The rice seedling tray lifting machine according to claim 6, characterized in that: The push plate mechanism (D) comprises a chain track (D1), a push plate chain (D2), a rear coated iron sheet (D3), a front coated iron sheet (D4), a push plate longitudinal beam (D5), a push plate main sprocket (D6), a push plate secondary sprocket (D7), a push plate main shaft (D8), a push plate main shaft sleeve (D9), a push plate main shaft bearing seat (D10), a telescopic rod (D11), an L-shaped plate (D12), a telescopic column (D13), a push plate main shaft motor (D14), a push plate secondary shaft (D15), a push plate secondary shaft front sleeve (D16), a push plate secondary shaft rear sleeve (D17), a front connecting block (D18), a rear connecting block (D19), a push plate assembly (D20), a supporting short beam (D23), a fixing plate (D24), a push plate chain adjusting nut (D25) and a chain adjusting bolt (D26); Two chain tracks (D1) are symmetrically arranged relative to the longitudinal center line (OO) of the push plate mechanism, a push plate chain (D2) is installed in each chain track (D1), the outer edge of the chain track (D1) located at the rear side is coated with a rear coated iron sheet (D3), the outer edge of the chain track (D1) located at the front side is coated with a front coated iron sheet (D4), a rear connecting plate (D3-1) extending horizontally backward is arranged on the rear coated iron sheet (D3), a push plate longitudinal beam (D5) is arranged in parallel below the rear connecting plate (D3-1) and connected to the rear connecting plate (D3-1) through a connecting element, a front connecting plate (D4-1) extending vertically downward is arranged on the front coated iron sheet (D4), one end of the push plate chain (D2) is sleeved on the push plate main sprocket (D 6), the other end of the push plate chain (D2) is sleeved on the push plate auxiliary sprocket (D7), the push plate main sprocket (D6) is fixed on the push plate main shaft (D8), the push plate main shaft sleeve (D9) is installed on one end of the push plate main shaft (D8) through a bearing, the push plate main shaft bearing seat (D10) is installed on the other end of the push plate main shaft (D8), one end of the telescopic rod (D11) is fixedly connected to the push plate main shaft sleeve (D9), the push plate main shaft bearing seat (D10) is connected to the bottom plate of the L-shaped plate (D12) through a connecting element, the rear of the telescopic column (D13) is fixedly connected to the vertical plate of the L-shaped plate (D12), the left end of the telescopic column (D13) is arranged in the rectangular tube of the push plate longitudinal beam (D5), the input end of the push plate main shaft (D8) is connected to the push plate main shaft motor (D1 4), the push plate main shaft motor (D14) is installed on the bottom plate of the L-shaped plate (D12) through a connecting element, the push plate secondary sprocket (D7) is fixed on the push plate secondary shaft (D15), the push plate secondary shaft front sleeve (D16) is installed with the front end of the push plate secondary shaft (D15) through a bearing, the push plate secondary shaft rear sleeve (D17) is installed with the rear end of the push plate secondary shaft (D15) through a bearing, the push plate secondary shaft front sleeve (D16) is fixedly connected to the rear lifting beam (C15-2) through a front connecting block (D18), the push plate secondary shaft rear sleeve (D17) is fixedly connected to the push plate longitudinal beam (D5) through a rear connecting block (D19), two push plate assemblies (D20) are evenly arranged on the push plate chain (D2), and a plurality of supporting short beams (D23) are arranged along the push plate machine The longitudinal center line (OO) of the structure is evenly arranged between the front connecting plate (D4-1) and the push plate longitudinal beam (D5), one end of the supporting short beam (D23) is fixedly connected to the push plate longitudinal beam (D5), the other end of the supporting short beam (D23) is fixedly connected to the front connecting plate (D4-1), the fixed plate (D24) is located between the upper and lower chains of the push plate chain (D2), one end of the fixed plate (D24) is fixedly connected to the telescopic rod (D11), the other end of the fixed plate (D24) is fixedly connected to the telescopic column (D13), the push plate chain adjustment nut (D25) is fixedly connected to the right support short beam (D23), the chain adjustment bolt (D26) is threadedly connected to the push plate chain adjustment nut (D25) and passes through the support short beam (D23) and then presses on the fixed plate (D24).

8. The rice seedling tray lifting machine according to claim 7, characterized in that: Each push plate assembly (D20) includes a bent plate (D20-1), a pad (D20-2) and a push plate (D20-3), the two bent plates (D20-1) are symmetrically arranged between the two push plate chains (D2) relative to the vertical center line (WW), and the vertical edge of each bent plate (D20-1) is fixedly connected to its corresponding push plate chain (D2), each bent plate (D20-1) is provided with a pad (D20-2), one end of the push plate (D20-3) is arranged on the two pads (D20-2), and the bent plate (D20-1), the pad (D20-2) and the push plate (D20-3) are connected by a connecting element.

9. A rice seedling tray lifting machine according to claim 1, 2, 7 or 8, characterized in that: The walking mechanism (E) comprises a hexagonal main shaft (E1), a hexagonal shaft bearing seat (E2), a walking motor (E3), a main shaft sprocket (E4), a secondary shaft sprocket (E5), a hexagonal secondary shaft (E6), a walking chain (E7), a secondary shaft bearing seat (E8), a vertical plate (E9), a connecting beam (E10), a driving sprocket (E11), a rear driving wheel (E12), a front driving wheel (E13), a driven sprocket (E14), a follower shaft (E15), a connecting Chain (E16), countershaft left sleeve (E17), countershaft right sleeve (E18), walking main beam (E19), walking sub-beam (E20), tension rod (E21), fixing block (E22), tension nut (E23), tension bolt (E24), height adjustment rod (E25), inclined beam (E26), hexagonal shaft sleeve (E27), push rod front end hinge plate (E28), push rod motor (E29) and push rod rear end hinge plate (E30); The hexagonal main shaft (E1) is supported by a hexagonal shaft bearing seat (E2), the output shaft of the travel motor (E3) is connected to the hexagonal main shaft (E1), the main shaft sprocket (E4) is fixed on the output end of the hexagonal main shaft (E1), the secondary shaft sprocket (E5) is fixed on the hexagonal secondary shaft (E6), the main shaft sprocket (E4) and the secondary shaft sprocket (E5) are connected by a travel chain (E7), the hexagonal secondary shaft (E6) is supported by a secondary shaft bearing seat (E8), the secondary shaft bearing seat (E8) is fixedly connected to the vertical plate (E9), the vertical plate (E9) is fixedly connected to the connecting beam (E10), the driving sprocket (E11) and the rear driving wheel (E12) are both matched with the hexagonal secondary shaft (E6). The rear drive wheel (E12) and the driving sprocket (E11) are axially fixedly connected, the front drive wheel (E13) and the driven sprocket (E14) are both installed on the follower shaft (E15) through bearings, the front drive wheel (E13) and the driven sprocket (E14) are axially fixedly connected, the driving sprocket (E11) and the driven sprocket (E14) are connected through a connecting chain (E16), the left shaft sleeve (E17) and the right shaft sleeve (E18) of the secondary shaft are respectively arranged on the left and right sides of the rear drive wheel (E12), and the left shaft sleeve (E17) and the right shaft sleeve (E18) of the secondary shaft are both installed on the hexagonal secondary shaft (E6) through bearings, and the walking main beam (E1 9) is fixedly connected to the left shaft sleeve (E17) of the secondary shaft, one end of the walking secondary beam (E20) is fixedly connected to the right shaft sleeve (E18) of the secondary shaft, the other end of the walking secondary beam (E20) is fixedly connected to the walking main beam (E19), one end of the tensioning rod (E21) is fixedly connected to the follower shaft (E15), the other end of the tensioning rod (E21) is arranged in the rectangular tube of the walking main beam (E19), the fixing block (E22) is fixedly connected to the tensioning rod (E21), the tensioning nut (E23) is fixedly connected to the walking main beam (E19), the tensioning bolt (E24) is threadedly connected to the tensioning nut (E23) and then pressed on the fixing block (E22), and the height adjustment rod (E25) The inclined beam (E26) is arranged vertically and fixedly mounted on the walking main beam (E19), and the inclined beam (E26) is arranged below the connecting beam (E10) at an angle of 45 degrees to the connecting beam (E10), and one end of the inclined beam (E26) is fixedly connected to the connecting beam (E10), and the other end of the inclined beam (E26) is fixedly connected to the hexagonal shaft sleeve (E27), and the hexagonal shaft sleeve (E27) is mounted on the hexagonal main shaft (E1) through a bearing sleeve, and the front end hinge plate (E28) of the push rod is fixedly connected to the inclined beam (E26), the push rod end of the push rod motor (E29) is hinged to the front end hinge plate (E28) of the push rod, and the rear end of the push rod motor (E29) is hinged to the rear end hinge plate (E30) of the push rod.

10. The rice seedling tray lifting machine according to claim 9, characterized in that: The loading mechanism (F) comprises a front beam (F1), a rear beam (F2), a left beam (F3), a frame beam (F4), a positioning plate (F5), a support column (F6), a front tension beam (F7), a rear tension beam (F8), a folding frame (F9), an articulated seat (F10), a gas spring hydraulic rod (F11), a corner plate (F12), a hydraulic rod seat (F13), a connecting seat (F14) and a loading frame (F15); The front beam (F1) and the rear beam (F2) are arranged in parallel, the left beam (F3) is arranged at the left ends of the front beam (F1) and the rear beam (F2), and the two ends of the left beam (F3) are respectively fixed to the front beam (F1) and the rear beam (F2), the two frame beams (F4) are arranged in parallel to the left beam (F3), and the two ends of the frame beam (F4) are respectively fixed to the front beam (F1) and the rear beam (F2), the positioning plate (F5) is fixed to the front end of the front beam (F1), the support (F6) is vertically fixed to the lower right end of the rear beam (F2), the front tension beam (F7) is arranged below the front beam (F1) and one end is fixed to the front beam (F1), one end of the rear tension beam (F8) is fixed to the rear beam (F2), and the other end of the rear tension beam (F8) is fixed to the support (F6), the folding frame (F9) is arranged on the left beam (F3), and the folding frame (F9) is arranged on the left beam (F3), and the folding frame (F9) is arranged on the left beam (F3). The folding frame (F9) is hinged to the hinge seat (F10) through a pin shaft, the hinge seat (F10) is fixedly mounted on the left beam (F3), one end of the gas spring hydraulic rod (F11) is hinged to the corner plate (F12), the other end of the gas spring hydraulic rod (F11) is hinged to the hydraulic rod seat (F13), the corner plate (F12) is fixedly connected to the folding frame (F9), the hydraulic rod seat (F13) is fixedly connected to the connecting seat (F14), the left end of the connecting seat (F14) is fixedly connected to the front beam (F1), the loading frame (F15) is placed on the frame beam (F4), and the loading frame (F15) is evenly spaced from top to bottom with a first loading grid (F15-1), a second loading grid (F15-2), a third loading grid (F15-3), a fourth loading grid (F15-4), and a fifth loading grid (F15-5).

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