JP3427018B2 - Lateral feed mechanism of seedling planting equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transverse feed shaft, which is rotatably provided around a shaft center thereof and extends laterally from a feed case to a supporting member, and is engraved around the transverse feed shaft. Providing a top member having a convex portion that engages with the spiral groove,
The transverse feed shaft is provided with a moving body that allows rotation about its axis and is fitted externally in a state of being slidable in the axial direction. The top of the transverse feed shaft is provided by projecting a top receiving portion that is fitted and supported rotatably around an axis orthogonal to the axis of the transverse feed shaft and connecting the moving body to the seedling table. With the rotation around,
The present invention relates to a lateral feed mechanism of a seedling planting device configured to laterally feed and reciprocate the seedling placing table with a constant stroke.

[0002]

2. Description of the Related Art As a transverse feed mechanism of a seedling planting apparatus as described above, for example, as disclosed in Japanese Unexamined Patent Publication No. 10-164930, a top member is bolted to a top receiving portion to prevent the top member from coming off. The lid body of the present invention is also used as a connecting member for connecting the moving body to the seedling mounting table, and as disclosed in JP-A-8-266118, the top member is bolted to the top receiving portion to prevent the top member from coming off. There is a lid with a grease nipple in the lid, etc., and conventionally, in these lateral feed mechanisms, in order to maintain a smooth lateral feed reciprocating movement of the seedling mounting table, grease etc. is placed in the spiral groove of the lateral feed shaft. The lubricating oil was replenished regularly.

Incidentally, the former one of the transverse feed mechanisms described above uses a tool to remove the lid member from the top receiving portion and the seedling placing table to take out the top member, or to surround the transverse feed shaft. By removing the protective cover, it is possible to replenish the spiral groove of the transverse feed shaft with lubricating oil.

On the other hand, in the latter of the above-mentioned lateral feed mechanisms, although the replenishment of lubricating oil can be easily performed from the grease nipple, the replenished lubricating oil passes through the top receiving portion into which the top member is fitted. By supplying to the spiral groove of the transverse feed shaft, the lubricating oil is likely to be insufficiently replenished to the spiral groove, whereby the spiral groove of the transverse feed shaft and the convex portion of the top member engaged with the spiral groove can be promptly discharged. Since it is easy to cause inconvenience of wear, it is possible to directly replenish the spiral groove of the transverse feed shaft with lubricating oil by performing work such as removing the lid body and protective cover with a tool as in the former case. Is desired.

[0005]

However, in the above-mentioned prior art, since the spiral groove of the lateral feed shaft is simply replenished with the lubricating oil, and only a small amount can be replenished thereby, as described above, the tool is used. Since it is necessary to frequently replenish the lubricating oil, which requires the removal of the lid and protective cover, it requires considerable effort to maintain the smooth lateral movement of the seedling table. It was like this.

[0006] An object of the present invention is to reduce the labor required for maintaining the smooth lateral movement of the seedling table.

[0007]

[Means for Solving the Problems]

[Structure] In order to solve the above-mentioned object, in the invention according to claim 1 of the present invention, the transverse feed shaft is installed laterally from the feed case to the support member in a state of being rotatable about its axis. , Providing a top member provided with a convex portion that engages with a spiral groove engraved around the lateral feed shaft, and with respect to the lateral feed shaft,
A movable body is provided which allows rotation around the axis and is fitted externally in a slidable manner in the axial direction, and the top member is orthogonal to the axis of the transverse feed shaft on the movable body. By projecting a top receiving portion that rotatably fits around the axis center to be supported, and by connecting the moving body to the seedling table, with the rotation of the transverse feed axis around the axis, in transverse feed mechanism seedlings planting apparatus have configured the seedling mounting table so as to crossfeed reciprocally moved at a constant stroke, before in the frame receiving section
Of the peripheral parts of the frame member, in front of the frame member
An oil storage chamber for storing lubricating oil is formed at a position lateral to the moving body in the moving direction so as to face the transverse feed shaft.

[Operation] According to the first aspect of the present invention, the oil reservoir chamber for storing the lubricating oil is formed at the peripheral portion of the top member in the top receiving portion projecting from the moving body. A large amount of lubricating oil can be replenished in the oil sump chamber during the oil replenishment work, and thus the number of times of replenishment of lubricating oil can be significantly reduced. Also, by forming the oil sump chamber so as to face the lateral feed shaft, the lubricating oil in the oil sump chamber is automatically supplied to the spiral groove of the lateral feed shaft as the moving body slides due to the rotation of the lateral feed shaft. Because you can
It is possible to easily maintain the lateral feed reciprocating movement of the seedling placing table in a smooth state, and to prevent early wear of the spiral groove of the lateral feed shaft and the convex portion of the top member engaged with the spiral groove. .

Moreover, the oil sump chamber should be placed in the top receiving part.
Compared to the case where it is formed around the entire periphery of the top member
The supporting strength of the top member in the top receiving part of the moving body.
While raising, as the moving body slides due to the rotation of the lateral feed shaft
Automatically supplies the lubricating oil in the oil sump chamber to the spiral groove of the lateral feed shaft.
You will be able to.

By the way, the oil sump chamber is installed in the frame receiving section.
Move the frame member around the frame member with respect to the frame member
If it is formed in a direction orthogonal to the body movement direction,
Make sure that the receiving part is orthogonal to the moving direction of the moving body, not the moving direction.
It will swell in the direction
With the sliding of the moving body by the
There is a risk of contact with other things near the plant
In addition, in order to avoid the possibility,
Since it is necessary to form a space around the seedling planting device
Will lead to an increase in size.

Therefore, in the invention according to claim 1, the oil is
Set the collecting chamber in the vicinity of the top member in the top receiving part.
At the lateral side of the moving body with respect to the top member
Forms viewed form, the frame receiving portion is orthogonal to the moving direction of the moving body
It prevents it from bulging in the direction.
Therefore, the piece receiving part of the seedling planting device where the frame receiving part is close to the lateral feed mechanism
The risk of contact with other objects can be avoided, and
Since it is not necessary to form a space around it, the seedling planting device
It becomes possible to avoid the increase in size.

[Effect] Therefore, it is possible to reduce the labor required for maintaining the smooth lateral movement of the seedling placing table and to improve the durability of the lateral feeding shaft and the top member in the lateral feeding mechanism. Became. In addition, it can be moved without increasing the size of the seedling planting device.
It is possible to avoid contact with other pieces of the frame receiving part in the body
Now that you can increase its strength,
The traverse mechanism to improve the durability of the moving body.
It became so.

[Structure] In the invention according to claim 2 of the present invention, the above-mentioned claim 1
In the invention described above, the movable body is provided with a lid that prevents the top member from coming off from the piece receiving portion and closes the oil sump chamber, and the movable body is attached to the seedling mounting table. It is also used as a connecting member for connecting to.

[Operation] According to the second aspect of the present invention, the lid provided on the movable body prevents the top member from coming off from the top receiving portion, and the oil sump formed in the peripheral portion of the top member. Since it functions as a lid member that closes the chamber and a connecting member that connects the moving body to the seedling mounting table, it is not necessary to individually provide those members, and these members are individually connected to the moving body. There is no need for such trouble.

[Effect] Therefore, it is possible to facilitate the management of parts, simplify the configuration, and reduce the manufacturing cost.

[Structure] In the invention according to claim 3 of the present invention, the above-mentioned claim 2
In the invention described above, the lid body is provided with an oil supply for replenishing the lubricating oil.
A cap that forms a mouth and closes this filler port
Equipped with removable.

[Operation] According to the invention described in claim 3, the oil sump chamber is closed.
The lid as a connecting member that connects the moving body to the seedling table.
Although it is a thing, the lid is moved using a tool and the seedling
The lid does not have to be removed from the mounting table.
Simply remove the cap from your body
Lubrication oil can be easily replenished from the supply port.

[Effect] Therefore, the structure of the lid can be simplified and the like can be simplified.
Supply of lubricating oil to the oil sump chamber
Since it can be easily performed, smooth side-to-side reciprocating transfer of seedling mounting table is possible.
More effectively reduce the effort required to maintain motion
It became as to be.

[Structure] In the invention according to claim 4 of the present invention, the above-mentioned claim 1
In the invention according to any one of claims 1 to 3, the moving body
The feed case facing from the end on the moving side in
Or, the movement of the moving body is not allowed over the supporting member.
Erected a bellows-shaped protective cover surrounding the horizontal feed shaft
In addition, the inner space of both protective covers should be
A through hole communicating with each other was formed.

[Operation] According to the invention described in claim 4, the protective cover is provided.
To prevent dust from adhering to the transverse feed shaft and top member
It is possible, to the spiral groove and the engagement therewith of the horizontal feed shaft
Caused by dust and the like getting caught between the protrusions of the top member
It becomes possible to avoid early wear of the spiral groove and the convex portion.

By the way, normally, both protective covers are provided on the moving body.
There is no through hole that connects the internal space of the
, One of the protective covers is compressed as the moving body moves.
However, because the air does not escape from the protective cover,
The protective cover on the compressed side is forced to expand on the outer peripheral side.
Will come out and thereby the durability of the protective cover
Will cause the inconvenience of decreasing. Therefore, the above request
According to the invention of Item 4, in the moving body, the inner space of both protective covers is provided.
The through hole that connects the
The protective cover on the side that is compressed as the moving body moves.
The air inside is stored on the side that expands through the through hole of the moving body.
It can be made to flow toward the protective cover, so that it can be compressed
The protective cover on the side where the
It becomes possible to prevent bulging to the outer peripheral side.

[Effect] Therefore, the durability of the transverse feed shaft and the top member in the transverse feed mechanism is improved.
To improve the effectiveness of the
It is also possible to improve the durability of the protective cover provided.
It was

[Structure] In the invention according to claim 5 of the present invention, the above-mentioned claim 1
In the invention described in any one of 1 to 4, the oil sump chamber is provided with respect to the top member in the top receiving portion.
One of the lateral points of the moving direction of the moving body
Formed only.

[0024] [Operation] According to the present invention the fifth aspect, the oil reservoir chamber, the frame
Both sides in the moving direction of the moving body with respect to the top member in the receiving portion
Compared to the case where it is formed on one side, while increasing the supporting strength of the top member in the top receiving portion of the moving body, the sliding of the moving body due to the rotation of the lateral feed shaft causes the lubricating oil in the oil sump chamber to move horizontally. It becomes possible to automatically supply to the spiral groove of the feed shaft.

[Effect] Therefore, it is possible to increase the strength of the frame receiving portion of the moving body.
Can be, have been, while improving the durability of the movable body in the lateral feeding mechanism, now attained a reduction of labor required in maintaining crossfeed reciprocation smooth seedling placing stand.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a side surface of a seedling planting device 2 which is connected to a rear portion of a traveling machine (not shown) which is constructed as a riding type so as to be able to move up and down through a link mechanism 1. The seedling planting device 2 includes a support frame 3 in the shape of a square pipe arranged in the left-right direction, a feed case 4 connected to the central portion of the support frame 3, and a support frame 3 in the state of being equally spaced in the left-right direction. From the rear to the rear, three planted transmission cases 5, a rotary type planting mechanism 6 axially supported on the left and right sides of the rear of each planted transmission case 5, and lateral to each planting mechanism 6. 6 seedlings can be planted by a seedling table 7 that reciprocates with a constant stroke in a predetermined direction, and three ground leveling floats 8 that preliminarily perform land leveling operation on the seedling site by each planting mechanism 6. It is configured.

As shown in FIGS. 1 to 3, the feed case 4
Includes a lateral feed transmission mechanism 11 that shifts the power transmitted from the traveling machine body to the input shaft 10 via the first transmission shaft 9 in three stages.
From the first shaft 11a of the lateral feed transmission mechanism 11 to the output shaft 12
And a first chain type transmission mechanism 13 that is transmitted to the. The horizontal feed shaft 14 is connected to the second shaft 11b of the horizontal feed transmission mechanism 11 in a state of integrally rotating, and the vertical feed shaft 15 is transmission-coupled via a transmission gear 16.
A second chain type transmission mechanism 17 installed in each planting transmission case 5 so as to transmit its power to the planting mechanism 6 is directly connected to the output shaft 12 or is coupled via a second transmission shaft 18. .

As shown in FIGS. 1, 2 and 4, the lateral feed shaft 14 is installed laterally from the feed case 4 to a supporting member 19 which is erected on the left end of the supporting frame 3. An endless spiral groove 14a is engraved around it. For the lateral feed shaft 14,
The rotation about the axis P1 is allowed, and the axis P
A moving body 20 that is fitted onto the outside so as to be slidable in one direction is attached. On the moving body 20, a top member 21 having a convex portion 21a that engages with the spiral groove 14a is provided.
1 is provided with a frame receiving portion 20A that is rotatably fitted and supported around an axis P2 orthogonal to 1 and protrudes upward, and a lid body 22 that prevents the frame member 21 from coming off from the frame receiving portion 20A. Are bolted together. The lid 22 is bent and formed into a substantially L-shape when viewed from the rear, and the upper portion thereof has a seedling stand 7 thereon.
It is bolted to a connector 7A extending from the.

That is, the lateral feed shaft 14, the moving body 20, the top member 21, and the lid 22 cause the lateral feed shaft 14 to rotate about its axis P1 by the power from the lateral feed transmission mechanism 11. Accordingly, the top member 21 is guided along the spiral groove 14a and the movable body 20 reciprocates left and right, thereby forming a lateral feed mechanism A that laterally reciprocates the seedling placing table 7 with a constant stroke. There is.

As shown in FIGS. 1 and 2, the vertical feed shaft 15
Is laid horizontally from the feed case 4 to the support member 23 provided upright on the right end portion of the support frame 3, and on the right end side thereof when the seedling placing table 7 reaches the left and right stroke ends. , Vertical feed belt 2 equipped on the seedling stand 7
A pair of vertical feed arms 15a for kicking up a drive arm (not shown) that drives the motor 4 is provided. A one-way clutch (not shown) is interposed between the drive shaft 24a of the vertical feed belt 24 and the drive arm.

That is, the vertical feed shaft 15 and the vertical feed belt 2
4, the vertical feed shaft 15 is rotated around its axis P3 by the power from the horizontal feed speed change mechanism 11 by the drive arm, the one-way clutch, and the like, and the vertical feed arm 15a kicks up the drive arm at predetermined intervals. Then the vertical feed belt 2
A vertical feed mechanism B configured to vertically feed the seedlings placed on the seedling placing table 7 by a predetermined amount each time the seedling placing table 7 reaches the left and right stroke ends by driving the seedling placing portion 4 vertically.

Then, the power after shifting by the horizontal feed transmission mechanism 11 is transmitted to the horizontal feed mechanism A and the vertical feed mechanism B,
Further, since the power before shifting by the lateral feed shifting mechanism 11 is transmitted to the planting mechanism 6, the operating lever 27 shown in FIG.
By performing the speed change operation of the lateral feed speed change mechanism 11, the lateral feed speed of the seedling placing table 7 with respect to the drive speed of the planting mechanism 6 can be changed in three stages. The amount of seedlings taken in the lateral direction of the seedlings, that is, the number of times of taking seedlings by the planting mechanism 6 per one lateral feed stroke of the seedling placing table 7 can be changed in three stages.

As shown in FIGS. 2 to 4, a movable bellows-like protective cover 25 which surrounds the lateral feed shaft 14 while allowing the moving body 20 to move from both ends on the moving side of the moving body 20. Are provided over the feed case 4 or the support member 19 facing them, and by doing so, it is possible to prevent dust and the like from adhering to the lateral feed shaft 14 and the top member 21, and thus the lateral feed shaft. The spiral groove 14a and the convex portion 21 caused by dust and the like being caught between the spiral groove 14a of the circular groove 14 and the convex portion 21a of the top member 21 engaging with the spiral groove 14a.
It is possible to avoid early wear of a.

As shown in FIGS. 4 and 5, the movable body 20 has a through hole 20 which communicates with the internal spaces of both protective covers 25.
B is formed so that the air in the protective cover 25 on the compressed side is caused to flow toward the protective cover 25 on the extending side through the through hole 20B as the moving body 20 moves. You can do it. As a result, it is possible to prevent the protective cover 25 on the compressed side from being forced to bulge to the outer peripheral side by its internal air as the seedling placing table 7 is reciprocally moved in the lateral direction with a constant stroke. Therefore, it is possible to prevent early deterioration of the protective cover 25 due to the bulging.

As shown in FIGS. 4 to 6, the left side, which is an example of one side portion in the moving direction of the moving body 20 with respect to the top member 21, among the peripheral portions of the top member 21 in the top receiving portion 20A of the moving body 20. An oil sump chamber 20a for storing lubricating oil such as grease is formed at one of the positions so as to face the lateral feed shaft 14 from above.
0a is closed by the lid 22. Lid 2
A lubricating oil supply port 22a for replenishing the lubricating oil is formed in 2, and a cap 26 for closing the lubricating oil supply port 22a is detachably provided.

That is, the oil sump chamber 20a is moved to the lateral feed shaft 14
Since the movable body 20 is slid by the rotation of the lateral feed shaft 14, the lubricating oil in the oil sump chamber 20a is rotated in the spiral groove 14a of the lateral feed shaft 14.
It is automatically supplied to the seedling table 7
The horizontal reciprocating movement can be easily maintained in a smooth state, and the spiral groove 14a of the horizontal feeding shaft 14 and the convex portion 21a of the top member 21 engaging with the spiral groove 14a can be prevented from being worn early. Has become. Further, by simply removing the cap 26 from the lid 22, the lubricating oil can be easily replenished to the oil sump chamber 20a from the supply port 22a, and a large amount of lubricating oil can be stored in the oil sump chamber 20a in one replenishment operation. Since the replenishment can be replenished and the number of replenishment of the lubricating oil can be significantly reduced, the smooth transverse reciprocating movement of the seedling placing table 7 can be maintained and the transverse feed shaft in the transverse feed mechanism A can be maintained. The effort required to improve the durability of the frame 14 and the top member 21 can be reduced.

Further, the lid member 22 is a stopper member for preventing the top member 21 from coming off from the top receiving portion 20A.
It is necessary to provide these members individually because they are also used as a lid member that closes the oil reservoir chamber 20a formed at the right side of the above and a connecting member that connects the moving body 20 to the seedling placing table 7. In addition, since there is no need to connect the members to the moving body 20 individually, it is possible to facilitate the management of parts, simplify the configuration, and reduce the manufacturing cost. Has become.

[0038] Moreover, comparing the oil reservoir chamber 20a, when forming since it is formed only on the left side of the frame member 21 in the frame receiving section 20A, the entire periphery or a plurality of locations near point of the frame member 21 As a result, it becomes possible to increase the support strength of the top member 21 in the top receiving portion 20A of the moving body 20, and when the oil sump chambers 20a are formed in the front and rear portions of the top member 21 in the top receiving portion 20A. As described above, it is possible to prevent the top receiving portion 20A from bulging in a direction orthogonal to the moving direction of the moving body 20, and when the moving body 20 moves laterally, the top receiving portion 20A is close to the lateral feeding mechanism A. The risk of contact with other objects of the attachment device 2 can be avoided without forming a space around the transverse feed mechanism A.

By the way, as shown in FIG.
On the joint surface 20C with the lid 22 is an annular seal groove 20.
b is made of aluminum die cast so as to surround the top member 21 and the oil sump chamber 20a, and the joint surface 20C
By applying a sealant on the, it is possible to prevent the leakage of lubricating oil.

[Other Embodiments] Other embodiments of the present invention will be listed below. The seedling planting device 2 may be configured to plant 4, 5, or 8 rows. The oil sump chamber 20a is connected to the top member 21 of the top receiving portion 20A.
It may be formed on the right side or both the left and right sides.
The oil sump chamber 20a may be formed so as to face the lateral feed shaft 14 from a direction other than above.
You may make it provide separately the connection member which connects the moving body 20 to the seedling stand 7. The moving body 20 may be provided with an oil supply port for replenishing the lubricating oil, and a cap 26 for closing the oil supply port may be detachably provided. Grease is added to the lid body 22 or the moving body 20 in the oil storage chamber 20a.
It may be provided with a grease nipple for replenishment.

[Brief description of drawings]

[Figure 1] Side view of seedling planting device

FIG. 2 is a schematic plan view showing a transmission configuration of a seedling planting device.

FIG. 3 is a vertical sectional rear view of the feed case.

FIG. 4 is a vertical cross-sectional rear view showing the configuration of a horizontal feed mechanism.

FIG. 5 is a vertical sectional side view showing a configuration of a moving body and a lid body.

FIG. 6 is a plan view showing the configuration of a moving body.

[Explanation of symbols] 4 feed cases 7 seedling stand 14 Horizontal feed axis 14a spiral groove 19 Support member 20 moving bodies 20A frame receiver 20B through hole 20a oil sump chamber 21 Top member 21a convex part 22 Lid 22a Filling port 25 Protective cover 26 caps P1 axis center P2 axis center

Continuation of the front page (56) Reference JP-A-8-266118 (JP, A) JP-A-10-164930 (JP, A) Actually open 53-143724 (JP, U) Actually open 6-71313 (JP , U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) A01C 11/02

Claims (5)

(57) [Claims] 1. A transverse feed shaft is laid horizontally laterally from a feed case to a support member in a state of being rotatable about its axis, and is engaged with a spiral groove formed around the transverse feed shaft. A top member provided with a convex portion is provided, and the transverse feed shaft is provided with a movable body that allows rotation about its axis and is externally fitted in a slidable state in the axis direction. On this moving body, a frame receiving portion for protrudingly fitting and supporting the frame member so as to be rotatable around an axis perpendicular to the axis of the transverse feed shaft is provided.
By connecting the moving body to the seedling table, the seedling table is configured so that the seedling table is horizontally fed and reciprocated with a constant stroke in accordance with the rotation of the lateral feed shaft around its axis. A lateral feed mechanism of the attachment device, which is provided at a position around the top member of the top receiving portion.
The lateral direction of the moving body with respect to the top member
Place, the transverse feed mechanism seedlings planting apparatus the oil reservoir for storing lubricating oil, is formed in a state facing the horizontal feed shaft. 2. The movable body is provided with a lid that prevents the top member from coming off from the piece receiving portion and closes the oil sump chamber, and the lid is used to attach the movable body to the seedling mounting table. The transverse feed mechanism of the seedling planting device according to claim 1, wherein the transverse feed mechanism is also used as a connecting member that is connected to. 3. An oil supply port for replenishing lubricating oil is formed on the lid body.
The cap that closes this filling port is attached and removed.
The lateral feeding mechanism of the seedling planting device according to claim 2, which is provided freely . 4. The pair of movable bodies is arranged from the end on the moving side.
Across the feed case or support member facing
A snake that surrounds the transverse feed shaft while allowing the moving body to move.
While constructing an abdominal protective cover, the moving body,
Through holes are formed to connect the inner spaces of both protective covers.
The lateral feeding mechanism of the seedling planting device according to any one of claims 1 to 3 . 5. The oil sump chamber is provided in the frame receiving portion.
The lateral direction of movement of the moving body with respect to the top member
5. It is formed only on one side of the place.
The transverse feeding mechanism of the seedling planting device according to any one of 1.