JPH067416U - Tension device for rod chain conveyor in root crop harvester - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] The tension roller position of the rod chain conveyor used as the first conveyor of the harvester is fixed. [Structure] Between the two fixed position rollers 4 and 4 which come into contact with the outer surface of the return path of the endless conveyor by the rod chain method,
The bearing projecting from the conveyor frame 3 is rotatably supported by a shaft 11 together with the two ends 6 of the forks 5 with the locking pieces 12 interposed therebetween, and the fixing pin engaged with the long hole slides. It is assembled so that it can be freely attached to and detached from the engaging groove 14, and only the engaging piece 12 which is the middle layer is fixedly attached to a part of the conveyor frame 3 in order to maintain the immobility, and is attached to the other end of the hawk 5. It is characterized in that the pivotally attached tension roller 8 can be fixedly maintained between the two fixed position rollers 4 and 4 and on the inner surface of the return path conveyor so that the conveyor is tensioned and abutted. A tension device for a rod chain conveyor in the Root Vegetable Harvester.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tension device for a rod chain conveyor in a root vegetable harvester.

[0002]

[Technical background]

 The rod chain conveyor attached to the root vegetables harvester is mainly used for the first conveyor, which has a digging hole at the tip.

[0003] The purpose of the method is to prevent the fall of the root vegetables due to the reverse movement when the root vegetables are dug out of the field, and to move the harvested vegetables in the obliquely upward direction. In the transfer stage of the first conveyor, which is the second conveyor and the subsequent conveyor means, the main purpose is to return to the field again by the vibration during the transfer. The fall of the adhered mud on the bottom of the rod chain has a mesh with a rough mesh at the tip in order to prevent malfunction due to the deposition on the various mechanisms below and to prevent the loading of other than the harvested product in the transfer tank. A conveyor is used.

[0004]

[Prior art]

 As is well known, the rod chain conveyor has a large mesh and exhibits a rough conveyance action, and its wear rate is also high due to the rocking contact with an adjacent piece and the contact with earth and sand and gravel. The 1st conveyor in the above is the first most consumable member in the harvester, but before the deterioration of the material, it is adjusted for slack only while it is still usable, and it is used for restarting.

[0005]

[Problems to be solved by the device]

 Similar to general-purpose belts and general-purpose conveyors, the slack adjustment of the rod chain conveyor was performed by extending the distance between the reversing rollers to adjust the slack. The Axis part is solidified due to the adhesion of a large amount of mud and the formation of rust due to these, which consumes a lot of labor and time required for the preparatory work before the start of the roller movement adjustment work, and saves valuable work time during the harvesting period. There was an absurdity to be provided during the conveyor adjustment work.

In view of this, the present invention eliminates the means for enlarging the distance between the reversing rollers at both ends of the means for tensioning the slack of the rod chain conveyor, and tensions the tension with a tension device interposed in the return path of the conveyor. Although the endless conveyor and the power transmission means are provided with a tension means as a general purpose means, the tension structure of the present invention is intended to provide a tension device suitable for a root vegetable harvesting harvester. Is.

[0007]

[Means for Solving the Problems]

 As a means for achieving the above-mentioned object, the present invention provides a shaft hole having an axial center at each of the end portions formed at the two-row ends with one end being a bifurcated end. One fixing pin composed of a bolt and a nut, which is formed in the middle of the shaft hole at a position separated from the shaft hole by a set distance L so as to face each other with a long hole in the longitudinal direction centered on the set position. Has a fork that is inserted through both long holes and has a tension roller pivotally rotatably supported at the other end, and a shaft hole at the end, and the distance L'having the same length as the distance L is the radius. A plurality of locking grooves, into which the fixing pins can be inserted, are formed in a radial direction on the arcuate outer circumference, and two fixed positions that contact the outer surface of the return path of the endless conveyor by the rod chain method. The two ends of the fork of the fork with the above-mentioned locking piece inserted in the protruding bearing Both of them are rotatably supported by a shaft, and only the locking piece that is the middle layer of the assembly is kept immovable so that it can be freely attached to and detached from the locking groove by sliding the fixing pin engaged with the long hole. For this purpose, a tension roller, which is fixedly attached to a part of the conveyor frame and pivotally attached to the other end of the fork, is tensioned between the two fixed position rollers and on the inner surface of the return conveyor. The contact position can be fixed and maintained as described above.

[0008]

[Action]

 A fork supported by a shaft of a bearing projecting from a part of the conveyor frame between two fixed rollers that come into contact with the outer surface of the return path of the endless conveyor of rod chain type at a position with a gap of a certain size. The tension roller at the front end is brought into contact with the inner surface of the conveyor between the two fixed position rollers, and is placed as a middle layer in the gap between the parallel two ends formed in the shaft attachment portion of the hawk, and When the tension is set by lowering the tension roller by pressing down the fork against one of the multiple locking grooves provided on the outer periphery of the locking piece fixed to the frame side, two pieces are set. The fixing pin engaged with the elongated hole formed at the end is moved in the pivotal direction, inserted into the engaging groove of the engaging position of the engaging piece and engaged with the engaging pin to prevent the hawk from rotating. Fixed in It is intended to fix the fork and the locking piece by tightening the bolt and nut of the fixing pin in order to maintain the state thereafter.

[0009]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. The endless Rotchien type conveyor 1 is provided with return rollers 2 (both one is a driving wheel) for rotating the conveyor 1 in a set direction. Two fixed position rollers 4, 4 that make contact with the outer surface of the intermediate path of the return path of the conveyor 1 are rotatably supported by a set distance on the conveyor frame 3 that is axially supported. One of the shafts 4 and 4 or the shaft 11 that is rotatably supported by the bearing 15 protruding from a part of the conveyor frame 3 at one end of the fork 5 is parallel to and opposite to each other. Is rotatably pivoted at its end, and a tension roller 8 is rotatably pivoted at the other single end 7 between the two fixed position rollers 4 and 4. Abut on the inner surface of the return path of conveyor 1 of rod chain In addition, at each of the two end portions 6 mentioned above, each of the two end portions 6 that face in parallel with a long hole aligned with the longitudinal direction of the hawk 5 centered at a point separated by the distance L set from the center of the axial support position as a starting point. 3 and the fixing pin 10 composed of a bolt and nut is movably inserted into the two elongated holes 9 in advance.

On the other hand, in the locking piece 12 having a shaft hole 16 through which the shaft 11 pivotally mounting the hawk 5 can be inserted and penetrated, from the shaft 11 in which the position of the long hole 9 in the hawk 5 is set. L'of the same length as the distance L of the locking groove 14 having a width that allows the fixing pin 10 to be fitted and engaged in the radial direction from the outer circumference 13 of an arc drawn with the shaft hole 16 as the center. A plurality of the above are recessed with a slight gap therebetween, and a fixing member 17 is formed so as to project on a part of the upper side thereof.

The locking piece 12 thus formed is interposed so as to be a middle layer of the two parallel-formed double ends 6 of the fork 5 described above, and the shaft 11 is also inserted into the shaft hole 16 of the locking piece 12. The fixing member 17 integrally formed with the hawk 5 and integrally formed with only the locking piece 12 is firmly fixed to the conveyor frame 3 to form only the locking piece 12 as an immovable body.

In the relationship between the hawk 5 and the locking piece 12 as described above, one of the locking grooves 14 of the locking piece 12 and the tension roller 8 of the hawk tension the conveyor 1 so that the conveyor 1 is tensioned. When 1 is pressed downward and the set proper tension is obtained, the fixing pin 10 in the long hole 9 provided in the hawk 5 is moved in the axial direction in which the hawk 5 is pivotally attached, and the locking piece It is configured so that it can be slidably inserted into the opened locking groove 14 in 12 and engaged therewith, and then the bolts and nuts of the fixing pin 10 can be tightened to maintain the above-mentioned engaged state. is there.

[0013]

[Effect of device]

 A tension device that contacts the inner surface of the conveyor between two fixed position rollers that contact the outer surface of the return path of the conveyor to lower the tension roller to tension the conveyor. The descent position can be fixed at a hawk descent set angle based on the meshing relationship between the locking groove of the locking piece fixed to the conveyor frame side and the fixing pin of the hawk, and the position is fastened with bolts and nuts on the fixing pin. Since the tension of the set tension can be maintained at a fixed state, this tension work requires only the necessary pressure by the tension of the conveyor, does not require large-scale work with weight as in the past, and does not need to be fixed. Eliminates difficult work due to removal of accumulated mud and rot-proofing due to rust, etc. One in which a certain effect.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial side view showing a tip portion of a rod chain conveyor device, FIG. 2 is a side view showing the structure and operation of the main part, and FIG. 3 is a side view of a tension device of the main part. 4 is a side view of the hawk, FIG. 5 is a plan view of FIG. 4, and FIG. 6 is a side view of the locking piece.

[0015]

[Explanation of symbols]

 1 Conveyor 2 Return Roller 3 Conveyor Frame 4 Fixed Position Roller 5 Hawk 6 Double End 7 End 8 Tension Roller 9 Slot 10 Fixing Pin 11 Shaft 12 Locking Piece 13 Outer Circumference 14 Locking Groove 15 Bearing 16 Shaft Hole 17 Fixing Member L distance L'radius

Claims (1)

[Scope of utility model registration request] 1. A shaft hole is provided in which an end portion formed in a bifurcated end 6 having one end parallel to each other is provided with a shaft center, and a distance L set from the shaft hole is provided in the middle of the bifurcated end 6. At a position separated from each other, a long hole 9 in the longitudinal direction centering on the above-mentioned set position is bored so as to face each other, and one fixing pin 10 composed of a bolt and a nut is inserted into both the long holes 9 and inserted. At the other end, a hawk 5 rotatably supporting a tension roller 8 and a shaft hole 16 at the end are provided on an arc-shaped outer circumference 13 having a radius of a distance L ′ having the same length as the distance L, The fixing pin 1
A locking piece 12 in which a plurality of locking grooves 14 into which 0 can be inserted is provided in the radial direction, and two fixed position rollers 4 and 4 which come into contact with the outer surface of the return path of the endless conveyor 1 by the rod chain method, are provided between the conveyor. A shaft 11 together with the two forked ends 6 of the fork in which the locking piece 12 is inserted is mounted on a bearing 15 protruding from the frame 3.
It is rotatably supported by and is attached so that it can be freely attached to and detached from the engaging groove 14 by sliding the fixing pin 10 engaged with the elongated hole 9, and only the engaging piece that is the middle layer is immovable. The tension roller 8 fixedly attached to a part of the conveyor frame 3 for maintaining the tension roller 8 pivotally attached to the other end of the hawk 5 is used.
Between the fixed position rollers 4, 4 and on the inner surface of the return conveyor, the position at which the conveyor abuts so that the conveyor is tensioned can be fixed and maintained. Tension device.