TWI435690B - Seedlings transplant machine - Google Patents

Description

Seedling transplanter

The invention relates to a pad seedling for loading a seedling stage which can be reciprocated to the left and right, so that the seedling stage is linked to the seedling planting mechanism, and the seedling planting action is reciprocated in the horizontal direction, and the pad seedling is taken out one plant at a time and planted in the agricultural land. Seedling transplanter.

In the past, it has been known that a plant seedling transplanting machine is planted in a farmer's field from a pad seedling which is loaded with a seedling stage which is reciprocally moved to the left and right, and is known as a planting machine for planting seedlings in a farmland (for example, refer to Patent Document 1). The seedling transplanting machine is provided with a horizontally movable rod which is slidable in the axial direction in a transmission case provided in a central portion of the seedling planting portion as a means for reciprocating the seedling stage to the left and right, and is laterally moved. The rod-mounted sliding body and the guiding protrusion of the sliding body are in contact with the guide shaft on which the spiral groove is formed on the outer peripheral surface. In addition, if the guiding shaft rotates, the guiding protrusion of the sliding body moves along the groove of the guiding shaft, and the horizontal moving rod reciprocates to the left and right to move the seedling stage horizontally.

Patent Document 1: Japanese Laid-Open Patent Publication No. 2008-148645

The object of the present invention is to improve the lateral efficiency of the seedling stage and improve the working efficiency of the drawing.

Specifically, it is made possible to supply lubricating oil to the guide shaft without missing The composition.

Further, the scraper which is in contact with the seedling receiving frame at the lower part of the seedling stage forms a molar portion, and even if an overload acts on the scraper, damage or deformation is suppressed to a minimum, and the repair is easy.

In order to solve the above problems, the present invention employs the following technical means.

That is, the present invention described in claim 1 is a seedling transplanting machine provided with a seedling stage (50) for placing a seedling to be planted on a farmland, and removably moving from the seedling stage (50). The seedling seedling is planted in the agricultural planting device (54), the guiding shaft (37) formed with the spiral groove portion (38), and the guiding protrusion (40) contacting the groove portion of the guiding shaft (37) Provided inside the sliding body (39), when the guiding shaft (37) is driven to rotate the sliding body (39), the seedling stage (50) is moved in the left-right direction, and the sliding body is (39) The left and right end portions of the guide shaft (37) are respectively provided with retractable left and right cover members (42, 42); the inner circumference of the left and right cover members (42, 42) a plurality of protrusions (46) form a space between the left and right cover members (42, 42) and the slider (39); a lubricant is accommodated inside the left and right cover members (42, 42), and the connection is provided The circulation flow path (43) of the connecting portion between the covering member (42, 42) and the sliding body (39) is supplied from the space to the lubricant in the left and right covering members (42, 42). Flow passage (43) constitutes.

The invention described in claim 2 is the seedling transplanting machine of claim 1, wherein the circulation flow path (43) is caused to pass the aforementioned sliding A circulation pipe disposed above the body (39).

The present invention is the seedling transplanting machine according to the first aspect of the invention, wherein the circulation flow path (43) is a circulation pipe disposed below the sliding body (39).

The present invention is a seedling transplanting machine according to any one of claims 1 to 3, wherein a lubricant supply device for supplying a lubricant is provided inside the left and right covering members (42, 42). (44).

The seedling transplanting machine according to any one of claims 1 to 3, wherein the seedling receiving outlet (51a) is formed on the lower end side of the seedling stage (50). The receiving frame (51) is provided with a fence (47) for separating the seeding table (50) for each planting row, and a scraper for contacting the seedling receiving frame (51) is disposed at the lower end of the fence (47) ( 48) A tooth portion (48a) that is broken when an overload is applied is formed at a front end portion of the blade (48).

The invention according to claim 6 is the seedling transplanting machine of claim 5, wherein the scraper (48) is fixed to the fence (47) with a bolt (49).

According to the invention of claim 1, by sliding the inside of the left and right covering members (42, 42), the sliding of the sliding body (39) in the left-right direction causes the left and right covering members (42, 42) to expand and contract and the lubricant moves. Therefore, the lubricating oil can be supplied to the guide shaft (37) without fail, and the lateral movement of the seedling stage (50) proceeds smoothly, and the work efficiency is increased.

In addition, the inside of the left and right covering members (42, 42) is in a circulating flow Since the road (43) is connected, even if the inside of the covering members (42, 42) on the left and right sides contains an excessive amount of lubricant, the lubricant passes through the circulation flow path (43) from the left and right side covering members (42). Since the covering member (42) on the left and right sides is moved, it is possible to prevent the excessively contained lubricant from leaking from the left and right covering members (42, 42) and adhering to the surrounding constituent members or falling to the agricultural land to cause contamination.

Further, when the sliding body (39) is moved by the rotation of the guide shaft (37) and the right and left sides of the covering member (42) are contracted, the lubricant passes through the circulation flow path (43) to the opposite side covering member (42). Since the internal movement is prevented, the pressure inside the left and right covering members (42, 42) is prevented from excessively rising, and the lubricant is prevented from leaking from the left and right covering members (42, 42).

The connection portions between the left and right end portions of the slider (39) and the end portions of the left and right cover members (42, 42) can be connected to each other by a circulation flow path (43).

A plurality of protrusions (46) are provided on the inner circumference of the end portions of the left and right cover members (42, 42), and when the left and right cover members (42, 42) are attached to the slider body (39), the plurality of protrusions (46) are used. Since a space is formed in the connecting portion, the lubricant easily moves to the circulation flow path (43), the lubricant can be supplied to the guide shaft (37), and the movement of the seedling stage (50) proceeds smoothly.

Further, since the lubricant easily moves to the circulation flow path (43), the pressure inside the left and right covering members (42, 42) can be prevented from excessively rising by the movement of the lubricant, and the lubricant can be prevented from the left and right covering members (42). , 42) leaked out.

According to the invention of claim 2, in addition to the effects of the invention described in claim 1, the circulation pipe constituting the circulation flow path (43) can be passed through the sliding body (39). Configured above.

According to the invention of claim 3, in addition to the effect of the invention described in claim 1, the circulation pipe constituting the circulation flow path (43) can be prevented from covering the upper side of the sliding body (39), so that the sliding body (39) can be easily performed. Maintenance or improvement, such as cleaning or parts exchange.

According to the invention of claim 4, in addition to the effects of the invention of any one of claims 1 to 3, the sliding body (39) and the lubricant supply device (44) are connected by a flow path (45). Since the lubricant is injected into the inside of the left and right covering members (42, 42), the operation of injecting the lubricant into the plurality of positions of the guide shafts (37) which are long in the left-right direction is omitted, and the labor of the operator is reduced, and the maintainability is improved.

According to the invention of claim 5, in addition to the effects of the invention of any one of claims 1 to 3, since the front end portion of the doctor blade (48) is formed with the molar portion (48a), if an overload is applied to the circumference In the fence (47), the tooth portion (48a) is broken first, so that damage or deformation can be minimized.

According to the invention of claim 6, in addition to the effect of the invention described in claim 5, the blade (48) is fixed to the fence (47) with a bolt (49), so that even the blade portion (48a) of the blade (48) Damage can also be easily replaced.

Embodiments of the present invention will be described below based on the drawings. In addition, the following embodiments are merely one form of implementation, and are not intended to limit the scope of the patent application.

1 and 2 show a passenger-type rice transplanter 1 equipped with a multi-row seedling planting plant as an example of a seedling transplanting machine, and the traveling vehicle body 2 is used here. The engine E is driven substantially at the center, and the rotational power of the engine E is transmitted to the transmission device in the transmission case 12, and the rotational power that is decelerated by the transmission device is transmitted to the front wheels 10 and the rear wheels 11.

The engine E is mounted on the main frame 15, and the rotational power of the engine E is transmitted from the engine output shaft 20 to the shift input shaft of the transmission 12 via the belt transmission 21. A portion of the traveling powertrain is transmitted to the front wheel final case 13 to drive the front wheel 10, and the rest is transmitted to the rear wheel gear case 17 to drive the rear wheel 11. Further, the externally extracted power is transmitted to the planting clutch case 25 provided at the rear portion of the traveling vehicle body 2, and is driven from the planting clutch case 25 to the seedling planting portion 4 via the planting transmission shaft 26.

The upper portion of the engine E is covered with a hood 30, and a driver's seat 31 is provided above the hood 30, and a front cover 32, an operation box 33, and a steering wheel 34 for operating the front wheels 10, 10 are provided in front of the driver's seat 21. Further, a fertilizer application device 5 is provided on the side of the driver's seat 31. The 35-series preparation seedling stage.

Further, a seedling planting portion 4 is attached to the rear portion of the traveling vehicle body 2 via the lifting link mechanism 3, and between the seedling planting portion 4 and the vehicle body 2, a hydraulic lifting cylinder 24 for lifting the seedling planting portion 4 up and down is provided. .

In the present example, the seedling planting part 4 can be planted in 6 rows using 6 pieces of padded seedlings with soil. That is, the seedling stage 50 of the mat seedlings is placed on the seedling surface of each of the mat seedlings by the fence portion 47, and the seedlings of the seedlings on the seedling stage 50 are taken for each seedling. The seedling feeding belt 52 which is supplied to the outlets 51a, ..., and the planting apparatus 54 which has the number of seeding rows (6 rows) of the planting seedlings which are supplied to the seedlings take-out and is planted in the agricultural land, is in the agricultural ground. The central pontoon 55c, the side pontoon 55s, and the like which are slid up and down are configured to be lifted and lowered by the expansion and contraction of the hydraulic lifting cylinder 24, and can be raised to a non-working position or lowered to a working position to the ground. Set (position to the ground).

The seedling stage 50 is provided in a tilting posture in which the front side is located at the upper position, and is supported by the support frame 56 and the support frame 57. The seedling planting device 54 is interlocked by the right and left reciprocating mechanism to reciprocate in the horizontal direction. Linked to form. A seed receiving frame 51 integrally formed with the support frame 57 is formed on the lower end side of the seedling stage 50, and the seedling take-out port 51a is opened in six rows.

Further, if the lower end portion of each of the fence portions 47 is provided between the seedling receiving frames 51, if there is a predetermined overload or more, the hook portion 47 can be broken. Referring to Fig. 8 and Fig. 9), when an overload is applied to the fence portion 47, the damage or deformation can be minimized by the damage of the tooth portion 48a at the front end of the blade 48. The mounting of the blade 48 is locked and fixed by bolts 49, and the broken blade 48 can be easily replaced.

The planting drive shaft 28 in the transmission gearbox 27 is planted by the planting drive shaft 26 from the traveling vehicle body side, and the planting drive shaft 28 is driven by the drive chain driving seedling planting device 54 in the chain box 29.

The planting drive shaft 28 is conveyed through a gear transmission mechanism in the transmission case 36 to a guide shaft 37 that is erected in the horizontal direction. The guide shaft 37 is formed with a spiral groove portion 38 formed on the outer peripheral surface thereof, and the groove portion 38 has the guide projection 40 of the slider 39 in contact with and hooked. The lateral movement bar 41 attached to the slider body 39 is slidable in the axial direction, and the left and right end portions of the lateral movement bar 41 are coupled to the seedling stage 50. After the guide shaft 37 is rotated, the guide projection 40 moves along the spiral groove portion 38 of the guide shaft 37, and as the slide body 39 and the lateral movement rod 41 move laterally, the seed stage 50 reciprocates left and right.

Retractable bellows-like covering members 42 and 42 to which lubricant is injected are disposed on the right and left sides of the sliding body 39 on the left and right sides of the guide shaft 37. The left and right covering members 42 and 42 are coupled by a circulation flow path 43. Further, the circulation flow path 43 is a circulation pipe having a space portion inside.

After the guide shaft 37 is rotated, the guide projection 40 is moved along the spiral groove portion 38 of the guide shaft 37, and the slide body 39 is laterally moved to reciprocate the seed stage 50 to the right and left.

Further, after the lubricant is supplied to the inside of the covering member 42 by the first flow path (oil pipe) 45 by the lubricant supply device (oil pump) 44 (Fig. 6 and Fig. 7), the sliding body 39 slides in the left-right direction. The left and right cover members 42 and 42 are expanded and contracted to move the lubricant, and are supplied to the outer peripheral surface of the guide shaft 37. Further, the lubricant circulates from the covering member 42 on the right and left sides to the covering member 42 on the other side through the circulation flow path 43.

The circulation flow path 43 may be configured such that the state above the slider 39 is made to pass under the slider 39 as shown in FIG. In order to arrange the structure below the sliding body 39, the circulation flow path 43 does not cover the upper side and the left and right sides of the sliding body 39, so that maintenance such as cleaning of the sliding body 39 or parts exchange can be easily performed.

Further, as shown in Fig. 7, the end portions of the left and right cover members 42 and 42 on the side of the slider 39 are provided with a plurality of protrusions 46 on the inner circumference of the left and right cover members 42, 42 through which the cover members 42 and 42 are passed. The plurality of protrusions 46 are attached to the slider 39. Since the plurality of protrusions 46 are provided to form a space in the joint portion, the lubricant is easily moved to the guide shaft 37 or the circulation flow path 43, and the lubricating oil can be supplied to the guide shaft 37 without missing.

The embodiment shown in Fig. 7 is such that the circulation flow path 43 is communicated between the protrusion 46 of the covering member 42 and the nip portion 58. Further, the circulation flow path 43 is connected to the lubricant supply device 44, and the lubricant supplied from the lubricant supply device 44 can be injected into the inside of the left and right covering members 42, 42 through the second flow path 45a. Further, a configuration may be adopted in which the middle portion of the circulation flow path 43 is connected to the upper portion of the slider 39 via the branch pipe 43a. With this configuration, the lubricant can be supplied from above the guide projection 40, and the thermal deterioration of the guide projection 40 can be prevented. Further, the circulation flow path 43 may be configured such that the circulation flow path 43 is connected to the left and right cover members 42 and 42 and the circulation flow path 43 is provided to return the slide body 39 to the lubricant.

Further, as shown in FIG. 6, the circulation flow path 43 is configured to pass over the slider 39, and the circulation flow path 43 can be formed in a flexible material such as rubber or helium to push the circulation flow path 43 to the lateral direction. Since the hook portion is fixed to the hook portion 59 or the like, the cover 39a at the upper portion of the slider body 39 is easily opened and the maintenance property is upward.

Further, if the central support frame is connected to the circulation flow path 43 as a substitute for the oil supply storage tank to the guide shaft 37, the storage tank is not required, and the number of parts around the seed stage 50 is reduced.

36‧‧‧ Gearbox

37‧‧‧Guide axis

38‧‧‧Spiral groove

39‧‧‧Sliding body

40‧‧‧ Guidance projection

42‧‧‧ Covering components

43‧‧‧Circular flow path (circulation pipe)

44‧‧‧Lubricant supply device

45‧‧‧1st flow path

46‧‧‧Protrusions

47‧‧‧ fence

48‧‧‧Scraper

48a‧‧‧栉牙部

49‧‧‧ bolt

50‧‧‧ seedling platform

54‧‧‧ seedling planting device

Figure 1 is a side view of the rice transplanter.

Figure 2 is a plan view of the rice transplanter.

Figure 3 is a side view of the main part of the seedling planting section.

Figure 4 is a front view showing the main part of the right and left reciprocating mechanism of the seedling stage Figure.

Fig. 5 is a front elevational view showing an essential part of another example of the right and left reciprocating mechanism of the seedling stage.

Fig. 6 is a front elevational view showing the main part of the right and left reciprocating mechanism provided with the lubricant supply device.

Fig. 7 is a front elevational view showing the main part of another example of the right and left reciprocating mechanism provided with the lubricant supply device.

Figure 8 is a side view of the main part of the seedling stage.

Figure 9 is a plan view of the doctor blade.

37‧‧‧Guide axis

38‧‧‧Spiral groove

39‧‧‧Sliding body

40‧‧‧ Guidance projection

42‧‧‧ Covering components

43‧‧‧Circular flow path (circulation pipe)

Claims (6)

A seedling transplanting machine is provided with a seedling loading platform (50) for placing a seedling to be planted on a farmland, and a seedling plant (50) for taking out a seedling from the seedling loading platform (50) for planting in a farmland ( 54) a guide shaft (37) formed with a spiral groove portion (38), and a guide protrusion (40) contacting the groove portion of the guide shaft (37) is disposed inside the sliding body (39) The guide shaft (37) is driven to rotate the sliding body (39) to move the seedling stage (50) in the left-right direction, and is characterized by being guided at the left and right ends of the sliding body (39). Retractable left and right cover members (42, 42) are respectively disposed on the outer peripheral portion of the lead shaft (37), and a plurality of protrusions (46) are disposed on the inner circumference of the end portions of the left and right cover members (42, 42). A space is formed between the covering member (42, 42) and the sliding body (39); a lubricant is accommodated inside the left and right covering members (42, 42), and the left and right covering members (42, 42) and the sliding are provided The circulation flow path (43) of the connection portion of the body (39) is configured such that the lubricant in the left and right cover members (42, 42) is supplied from the space to the circulation flow path (43). A seedling transplanting machine according to the first aspect of the invention, wherein the circulation flow path (43) is a circulation pipe disposed above the sliding body (39). A seedling transplanting machine according to claim 1, wherein the circulation flow path (43) is a circulation pipe disposed below the sliding body (39). A seedling transplanting machine according to any one of claims 1 to 3, A lubricant supply device (44) for supplying a lubricant is provided inside the left and right cover members (42, 42). The seedling transplanting machine according to any one of claims 1 to 3, wherein a seedling receiving frame (51) formed with a seedling take-out opening (51a) is provided on a lower end side of the seedling stage (50), and the setting is The seedling stage (50) is provided with a partition fence (47) for each planting row, and a scraper (48) contacting the seedling receiving frame (51) is disposed at the lower end of the fence (47), and the scraper (48) is attached to the seedling (48). The front end portion is formed with a molar portion (48a) that is broken when an overload is applied. A seedling transplanter according to claim 5, wherein the scraper (48) is fixed to the fence (47) with a bolt (49).