Pneumatic spray-seeding machine

Abstract

The utility model relates to the technical field of spray-seeding machines, and discloses a pneumatic spray-seeding machine which comprises a rack, a seed box is mounted at the top of one side of the rack, a seed-metering device is arranged at an outlet in the lower end of the seed box, a seed supply device is arranged at the lower end of the seed-metering device, and a spray cylinder is arranged at the top of the other side of the rack. The lower end of the spray cylinder is rotationally connected to the rack through a swing mechanism, an outlet is formed in the front end of the spray cylinder, two inlets are formed in the rear end of the spray cylinder, one inlet is connected with a fan, and the other inlet is connected with a seed supply device through a seed conveying pipe; the fan is fixedly mounted at the front end of the rack and is driven by a second motor; a first motor is further arranged at the upper end of the rack, and the output end of the first motor is connected with a speed reducer and simultaneously drives the seed metering device seed metering bell and the swing mechanism to swing. According to the utility model, grass seeds in the seed box are automatically and quantitatively sprayed and sown through the air force of the fan, so that the sowing efficiency of the grass seeds is improved; meanwhile, automatic swinging of the spraying barrel is realized through the swinging mechanism, so that the spraying and seeding uniformity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying machines, in particular to a pneumatic spraying machine. Background Art

[0002] On land, grassland covers the largest area, and as a renewable resource, its renewal speed is unmatched by other resources. Grassland also has a great impact on the ecological environment. For example, in terms of resisting sandstorms and preventing soil erosion, its effect far exceeds that of forests.

[0003] In the 1990s, my country also introduced hydraulic seeding technology, and the achievements made at that time were also very remarkable. Later, people realized the importance of pneumatic seeding and developed pneumatic seeding machines. However, the existing pneumatic seeding machines use the swing of a handheld spray barrel to achieve the sowing of grass seeds. The frequency and range of the swing are difficult to control, resulting in poor uniformity of the sowing, and the amount of seeds sprayed cannot be accurately controlled.

[0004] Based on this, we designed a pneumatic seeding machine. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a pneumatic seeding machine, which has the advantages of good seeding uniformity and accurate control of the seeding amount.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pneumatic seeding machine comprises a frame, a seed box is installed on the top of one side of the frame, a seed meter is provided at the lower outlet of the seed box, a seed supply device is provided at the lower end of the seed meter, a spray barrel is provided on the top of the other side of the frame, the lower end of the spray barrel is rotatably connected to the frame through a swing mechanism, the front end of the spray barrel has an outlet, and the rear end has two inlets, one of which is connected to a fan, and the other is connected to the seed supply device through a seed delivery pipe; the fan is fixedly installed at the front end of the frame, and the fan is driven by a second motor; a first motor is also provided at the upper end of the frame, the output end of the first motor is connected to a reducer, and simultaneously drives the seed meter clock and the swing mechanism to swing.

[0008] Preferably, an amplifying mechanism is fixedly installed on the upper end of the frame, a gear 1 is provided on the upper end output shaft of the amplifying mechanism, a gear 2 is provided on the outer side of the swinging mechanism, and the gear 1 and gear 2 are meshed for transmission; a rocker is provided on the front side of the amplifying mechanism, a connecting rod is rotatably connected to the movable end of the rocker, a gear 3 is provided on the output shaft of the reducer, a frequency adjustment mechanism is provided on the side of the gear 3, and the end of the connecting rod away from the rocker is rotatably connected to the frequency adjustment mechanism.

[0009] The rotation of the first motor can drive the connecting rod and the amplifying mechanism to rotate back and forth, so that the gear one drives the gear two and the spray barrel to swing.

[0010] Preferably, the gear one is a semicircular gear.

[0011] Preferably, the frequency adjustment mechanism includes a frame, which is fixedly connected to the outer side of gear three along the radial direction of gear three, and a threaded rod one is rotatably provided on the inner side of the frame, and a threaded block is threadedly connected to the threaded rod one, and the outer side surface of the threaded block is rotatably connected to the end of the connecting rod; by rotating threaded rod one, the position of the threaded block on threaded rod one is adjusted, thereby adjusting the swing radius of the driving connecting rod, thereby controlling the swing frequency and swing range of the spray gun.

[0012] Preferably, the seeding device includes a fixed frame, a fourth gear, a grooved wheel shaft, a shell, a sleeve and a grooved wheel. The fixed frame is installed at the lower end outlet of the seed box by bolts, and the shell is fixedly installed on the lower end of the fixed frame. The upper end of the shell is provided with a feed port, which is connected to the outlet of the seed box, and the lower end is provided with a discharge port, which is connected to the seed supply device; a grooved wheel is provided inside the shell, and a grooved wheel shaft is fixedly connected to the middle part of the grooved wheel. One end of the grooved wheel shaft passes through the shell and is connected to the fourth gear. The fourth gear is connected to the third gear by a chain transmission. A plurality of seed slots are provided on the outer side surface of the grooved wheel, which are driven by the first motor to drive the grooved wheel shaft and the grooved wheel to rotate, so that the seeds in the seed box continuously fall into the seed slots, and the seeds in the seed slots are quantitatively discharged from the discharge port through rotation.

[0013] Preferably, a shaft sleeve is provided on the outer side of the groove wheel shaft, and the shaft sleeve is fixed to the groove wheel shaft by bolts. A slider with the same number as the seed slots is provided on one side of the shaft sleeve, and the slider is inserted into the seed slot from the side. The length and volume of the seed slot can be adjusted by adjusting the depth of the slider inserted into the seed slot, so that the amount of seeds sprayed will change accordingly.

[0014] Preferably, the seed feeder is a trumpet-shaped tube, with a feed pipe at the upper middle end of the seed feeder, and a mounting plate is provided at the upper end of the feed pipe, and the mounting plate is installed at the discharge port of the seed feeder by bolts, and a baffle is provided laterally below the feed pipe inside the seed feeder, and the baffle is inclined toward the outlet end of the seed feeder. When the grass seeds are fed into the seed feeder, they slide toward the outlet end through the baffle, and then the negative pressure formed in the spray barrel allows the grass seeds to be sprayed out more smoothly.

[0015] Preferably, a feeding port is provided at the upper end of the seed box, a seed box cover is provided on the feeding port, and handles are provided on both sides of the seed box for easy carrying.

[0016] Compared with the prior art, the utility model provides a pneumatic seeding machine, which has the following beneficial effects:

[0017] 1. The utility model uses the air force of the fan to automatically and quantitatively spray the grass seeds in the seed box, thereby improving the sowing efficiency of the grass seeds; at the same time, the automatic swing of the spray barrel is realized through the swing mechanism, thereby improving the uniformity of the spraying.

[0018] 2. The utility model drives the spray barrel to swing back and forth through a crank connecting rod, and adjusts the swing radius of the driving connecting rod through a frequency adjustment mechanism to control the swing frequency and swing range of the spray barrel, so that the spraying of grass seeds is more uniform.

[0019] 3. The utility model can discharge the seeds in the seed box from the discharge port in a quantitative manner through the seed meter, and adjust the length and volume of the seed slot by adjusting the depth of the slider inserted into the seed slot, so that the amount of seeds sprayed changes accordingly, achieving precise control.

[0020] 4. The utility model adopts the design of the seed feeder. When the grass seeds are fed into the seed feeder, the baffle plate causes them to slide toward the outlet end, and then the negative pressure formed in the spray barrel allows the grass seeds to be sprayed out more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0022] Figure 2 It is a front view of the utility model;

[0023] Figure 3 It is a rear view of the utility model;

[0024] Figure 4 It is a top view of the utility model;

[0025] Figure 5 It is a schematic diagram of the connection of the crank connecting rod in the utility model;

[0026] Figure 6 It is a structural schematic diagram of the seed meter in the utility model;

[0027] Figure 7 It is a top view of the seed meter in the utility model;

[0028] Figure 8 It is a cross-sectional view of the seed supply device in the utility model;

[0029] Fig. 9 It is a motion schematic diagram of the crank connecting rod in the utility model.

[0030] In the figure: 1, frame; 2, fan; 3, amplification mechanism; 4, swing mechanism; 5, spray gun; 6, seed delivery tube; 7, seed box; 8, seed meter; 9, seed supply; 10, first motor; 11, reducer; 12, second motor; 13, gear 1; 14, gear 2; 15, rocker; 16, connecting rod; 17, frame; 18, threaded rod 1; 19, threaded block; 20, gear 3;

[0031] Fixed frame; 82, gear four; 83, groove wheel shaft; 84, housing; 85, bushing; 86, groove wheel; 87, slider;

[0032] 91. Mounting plate; 92. Feeding pipe; 93. Baffle. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Example

[0034] See also Figure 1-9 A pneumatic seeding machine includes a frame 1, a seed box 7 is installed on the top of one side of the frame 1, a seed meter 8 is provided at the lower end outlet of the seed box 7, and a seed supply device 9 is provided at the lower end of the seed meter 8. A spray barrel 5 is provided on the top of the other side of the frame 1, and the lower end of the spray barrel 5 is rotatably connected to the frame 1 through a swing mechanism 4. The front end of the spray barrel 5 has an outlet and the rear end has two inlets, one of which is connected to a fan 2, and the other is connected to the seed supply device 9 through a seed delivery pipe 6; the fan 2 is fixedly installed at the front end of the frame 1, and the fan 2 is driven by a second motor 12; a first motor 10 is also provided at the upper end of the frame 1, and the output end of the first motor 10 is connected to a reducer 11, and simultaneously drives the seed meter 8 and the swing mechanism 4 to swing.

[0035] When sowing grass seeds, the grass seeds are added to the seed box 7, the first motor 10 and the second motor 12 are started, the seed meter 8 discharges the grass seeds in the seed box 7 into the seed supply device 9 in a quantitative manner, and the second motor 12 drives the fan 2 to rotate. The airflow of the fan 2 flows from one inlet to the outlet of the spray barrel 5, and forms a negative pressure at the other inlet of the spray barrel 5. The negative pressure causes the grass seeds in the seed supply device 9 to move to the outlet of the spray barrel 5 and be sprayed out with the airflow to complete the spraying of the grass seeds; at the same time, the first motor 10 drives the swing mechanism 4 to rotate reciprocatingly, so that the spray barrel 5 swings left and right to achieve uniform spraying. Example

[0036] In order to adjust the swing angle and swing range of the spray nozzle 5, this embodiment adds the following scheme on the basis of the first embodiment:

[0037] See also Figure 1 , 2, 3, 4, 5, an amplifying mechanism 3 is fixedly installed on the upper end of the frame 1, a gear 13 is provided on the upper end output shaft of the amplifying mechanism 3, a gear 2 14 is provided on the outer side of the swing mechanism 4, and the gear 13 and the gear 2 14 are meshed for transmission; a rocker 15 is provided on the front side of the amplifying mechanism 3, and a connecting rod 16 is rotatably connected to the movable end of the rocker 15, a gear 3 20 is provided on the output shaft of the reducer 11, a frequency adjusting mechanism is provided on the side of the gear 3 20, and the end of the connecting rod 16 away from the rocker 15 is rotatably connected to the frequency adjusting mechanism.

[0038] The rotation of the first motor 10 can drive the connecting rod 16 and the amplifying mechanism 3 to rotate back and forth, so that the gear 1 13 drives the gear 2 14 and the spray barrel 5 to swing.

[0039] Because the amplifying mechanism 3 is reciprocatingly rotating, the gear 13 is a semicircular gear, which can meet the requirements and save cost and weight.

[0040] The frequency adjustment mechanism includes a frame 17, which is fixedly connected to the outer surface of the gear three 20 along the radial direction of the gear three 20. A threaded rod 18 is rotatably provided on the inner side of the frame 17, and a threaded block 19 is threadedly connected to the threaded rod 18. The outer side surface of the threaded block 19 is rotatably connected to the end of the connecting rod 16. By rotating the threaded rod 18, the position of the threaded block 19 on the threaded rod 18 is adjusted, thereby adjusting the swing radius of the driving connecting rod 16, controlling the swing frequency and swing range of the spray barrel 5, and making the spraying of grass seeds more uniform.

[0041] Among them, the motion trajectory of the rocker 15 is as follows: Fig. 9 As shown in the figure, L 1 L is the distance from the threaded block 19 to the center of the gear 3 20; 2 is the length of the connecting rod 16; L 3 is the length of the rocker 15; L 4 is the distance from the center of gear three 20 to the rotation axis of rocker 15; Fig. 9 It can be seen that adjusting L 1 The size can be adjusted L 3 The swing angle and frequency of the rocker 15. Example

[0042] In order to achieve accurate quantitative seeding of the sprayer, this embodiment adds the following scheme on the basis of the second embodiment:

[0043] See also Figure 6 , 78. The seeding device 8 includes a fixed frame 81, a gear four 82, a grooved wheel shaft 83, a shell 84, a sleeve 85 and a grooved wheel 86. The fixed frame 81 is installed at the lower end outlet of the seed box 7 by bolts, and the shell 84 is fixedly installed at the lower end of the fixed frame 81. The upper end of the shell 84 is provided with a feed port, which is connected to the outlet of the seed box 7, and the lower end is provided with a discharge port, which is connected to the seed supply device 9; a grooved wheel 86 is provided inside the shell 84, and a grooved wheel shaft 83 is fixedly connected to the middle part of the grooved wheel 86. One end of the grooved wheel shaft 83 passes through the shell 84 and is connected to the gear four 82. The gear four 82 is connected to the gear three 20 by a chain transmission. A plurality of seed grooves are provided on the outer surface of the grooved wheel 86. The grooved wheel shaft 83 and the grooved wheel 86 are driven by the first motor 10 to rotate, so that the seeds in the seed box 7 continuously fall into the seed grooves, and the seeds in the seed grooves are quantitatively discharged from the discharge port through rotation.

[0044] A shaft sleeve 85 is provided on the outer side of the groove wheel shaft 83, and the shaft sleeve 85 is fixed to the groove wheel shaft 83 by bolts. A slider 87 with the same number as the seed slots is provided on one side of the shaft sleeve 85, and the slider 87 is inserted into the seed slot from the side. The length and volume of the seed slot can be adjusted by adjusting the depth of the slider 87 inserted into the seed slot, so that the amount of seeds sprayed will change accordingly.

[0045] In this embodiment, the seed feeder 9 is a trumpet-shaped tube, with a feed pipe 92 at the middle upper end of the seed feeder 9, and a mounting plate 91 is provided at the upper end of the feed pipe 92, and the mounting plate 91 is installed at the discharge port of the seed feeder 8 by bolts, and a baffle 93 is provided laterally below the feed pipe 92 inside the seed feeder 9, and the baffle 93 is inclined toward the outlet end of the seed feeder 9. When the grass seeds are fed into the seed feeder 9, the baffle 93 makes it slide toward the outlet end, and then the negative pressure formed in the spray barrel 5 makes the grass seeds be sprayed out more smoothly.

[0046] Among them, the upper end of the seed box 7 is provided with a feeding port, the feeding port is provided with a seed box 7 cover, and handles are provided on both sides of the seed box 7 for easy transportation. The material of the seed box 7 can be selected from Q235 steel. The shape of the seed box 7 is approximately an ellipsoid, the wall thickness is about 5mm, and the cross section is an ellipse with a long axis of 800mm and a short axis of 550mm. Its overall length is 820mm, and such a space can meet the demand for capacity.

Claims

1. A pneumatic seeding machine, comprising a frame (1), characterized in that: A seed box (7) is installed on the top of one side of the frame (1), a seed meter (8) is provided at the outlet of the lower end of the seed box (7), and a seed supply device (9) is provided at the lower end of the seed meter (8). A spray barrel (5) is provided on the top of the other side of the frame (1), and the lower end of the spray barrel (5) is rotatably connected to the frame (1) through a swing mechanism (4). The front end of the spray barrel (5) has an outlet, and the rear end has two inlets, one of which is connected to the fan (2), and the other is connected to the seed supply device (9) through a seed delivery pipe (6). The fan (2) is fixedly installed at the front end of the frame (1), and the fan (2) is driven by a second motor (12). A first motor (10) is also provided at the upper end of the frame (1), and the output end of the first motor (10) is connected to a reducer (11), and simultaneously drives the seed meter (8) to rotate and the swing mechanism (4) to swing.

2. A pneumatic seeding machine according to claim 1, characterized in that: An amplifying mechanism (3) is fixedly mounted on the upper end of the frame (1); a gear 1 (13) is arranged on the upper output shaft of the amplifying mechanism (3); a gear 2 (14) is arranged on the outer side of the swing mechanism (4); the gear 1 (13) and the gear 2 (14) are meshed for transmission; a rocker (15) is arranged on the front side of the amplifying mechanism (3); a movable end of the rocker (15) is rotatably connected to a connecting rod (16); a gear 3 (20) is arranged on the output shaft of the reducer (11); a frequency regulating mechanism is arranged on the side of the gear 3 (20); an end of the connecting rod (16) away from the rocker (15) is rotatably connected to the frequency regulating mechanism.

3. A pneumatic seeding machine according to claim 2, characterized in that: The gear one (13) is a semicircular gear.

4. A pneumatic seeding machine according to claim 2, characterized in that: The frequency adjustment mechanism comprises a frame (17), wherein the frame (17) is fixedly connected to the outer side surface of the gear three (20) along the radial direction of the gear three (20), and a threaded rod one (18) is rotatably provided on the inner side of the frame (17), and a threaded block (19) is threadedly connected to the threaded rod one (18), and the outer side surface of the threaded block (19) is rotatably connected to the end of the connecting rod (16); by rotating the threaded rod one (18), the position of the threaded block (19) on the threaded rod one (18) is adjusted, thereby adjusting the swing radius of the driving connecting rod (16), thereby controlling the swing frequency and swing range of the spray barrel (5).

5. The pneumatic seeding machine according to claim 1, characterized in that: The seed metering device (8) comprises a fixed frame (81), a gear (82), a grooved wheel shaft (83), a housing (84), a shaft sleeve (85) and a grooved wheel (86). The fixed frame (81) is mounted at the lower end outlet of the seed box (7) by means of bolts. The housing (84) is fixedly mounted at the lower end of the fixed frame (81). The upper end of the housing (84) is provided with a feed inlet, which is connected to the outlet of the seed box (7). The lower end of the housing (84) is provided with a discharge outlet, which is connected to the seed supply device (9). The housing (84) is provided with a grooved wheel (86) inside. ), a grooved wheel shaft (83) is fixedly connected to the middle of the grooved wheel (86), one end of the grooved wheel shaft (83) passes through the housing (84) and is connected to gear four (82), the gear four (82) is connected to gear three (20) through a chain transmission, a plurality of seed grooves are provided on the outer surface of the grooved wheel (86), and the grooved wheel shaft (83) and the grooved wheel (86) are driven to rotate by the first motor (10), so that the seeds in the seed box (7) continuously fall into the seed grooves, and the seeds in the seed grooves are quantitatively discharged from the discharge port through rotation.

6. A pneumatic seeding machine according to claim 5, characterized in that: A shaft sleeve (85) is provided on the outer side of the grooved wheel shaft (83), and the shaft sleeve (85) is fixed to the grooved wheel shaft (83) by means of bolts. One side of the shaft sleeve (85) is provided with sliders (87) whose number matches the number of seed slots, and the sliders (87) are inserted into the seed slots from the side.

7. A pneumatic seeding machine according to claim 6, characterized in that: The seed supply device (9) is in the shape of a trumpet-shaped tube. A feed pipe (92) is provided at the upper middle end of the seed supply device (9). A mounting plate (91) is provided at the upper end of the feed pipe (92). The mounting plate (91) is mounted at the discharge port of the seed metering device (8) by means of bolts. A baffle plate (93) is provided laterally below the feed pipe (92) inside the seed supply device (9), and the baffle plate (93) is inclined toward the outlet end of the seed supply device (9).

8. A pneumatic seeding machine according to any one of claims 1 to 7, characterized in that: The upper end of the seed box (7) is provided with a feeding port, a seed box (7) cover is provided on the feeding port, and handles are provided on both sides of the seed box (7).

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