JP2860599B2 - Main conveyor belt drive roller structure of earthen lump collecting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] This invention drills a hole for taking air into the soil to collect turf at a golf course or the like, and collects the earth mass extracted from the vertical hole. The present invention relates to a main transport belt driving roller structure for driving a main transport belt of a lump collecting apparatus.

[Conventional technology]

The cylindrical tine is connected to a vertical hole punching device that pierces the soil and pulls out the earth mass (hereinafter referred to as a core). The core is conveyed while being pinched by a Z-shaped main conveyor belt and an I-shaped auxiliary conveyor belt. A lump collecting device to be collected is known, for example, from JP-A-63-248305.

The main transport belt is forcibly driven by a main transport belt drive roller (hereinafter referred to as a drive roller). However, during operation, there is a problem that the main transport belt is displaced in the axial direction of the drive roller due to a difference in load resistance or the like. is there. When the main transport belt is displaced, not only does the core transport satisfactorily, but also the main transport belt rubs against a side plate or the like provided outside the core, and the main transport belt damages the side plate.

[Problems to be solved by the invention]

This is due to the characteristic feature that the main conveyor belt has a substantially wide single-sheet shape and the distribution of the cores conveyed by the main conveyor belt is not uniform in the width direction. That is,
If the distribution of the cores is biased in the width direction, a difference occurs in the load resistance, and the main transport belt having a larger load resistance tends to be delayed, and shifts in that direction. To prevent this, increasing the tension of the main transport belt as a whole or adjusting it to the left and right is incomplete, and the point is that if the main transport belt is displaced, this will be lost. Must be able to generate a restoring force. For this reason, it is conceivable to make the center of the drive roller into a middle-height shape. However, the degree of the middle height is a problem. However, there is a problem in that the main conveyor belt does not contact the drive roller and cannot exert a sufficient drive force.

The present invention solves such a problem, and the object thereof is to restore the main transport belt effectively even if the main transport belt is displaced, and to provide a powerful belt over the entire width. This embodiment embodies a driving roller structure of a main transport belt capable of exerting a driving force.

[Means for solving the problem]

Under the above problems, the present invention has taken the following measures. That is, in a lump collecting device that is connected to a vertical hole drilling device and receives, transports, discharges, and collects the earth mass extracted by the vertical hole drilling device with a Z-shaped main transport belt and an I-shaped auxiliary transport belt. The main conveyor belt driving roller for forcibly driving the conveyor belt has both ends formed to have a smaller diameter than the central part, and the outer peripheral surfaces of both ends have substantially the same outer diameter as the central part and the central part has The present invention provides a main transport belt driving roller structure for a lump collecting apparatus, wherein a plurality of spiral ridges that are directed toward the rear side in the rotation direction are provided at predetermined intervals.

[Action]

By taking the above measures, that is, even if the main conveyor belt is displaced due to the presence of a spiral ridge at both ends which is oriented toward the rear in the rotation direction toward the center, friction with the ridge is maintained. The force component works in a direction to restore this. Further, since the outer diameter of the ridge is substantially equal to the outer diameter of the central portion, a strong driving force is exerted over the entire width.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing a state in which a vertical hole punching device A for collecting and collecting cores is connected to a lump collecting device B, and FIG. 2 is a plan view of the lump collecting device B.

The vertical hole punching device A is a device in which a main body 2 having a cabinet 1 at a rear portion is supported by a front wheel 3 at a center and two rear wheels 4 at left and right. The rear wheel 4 is provided with a rear wheel frame 6 rotatably provided around a support shaft 5 projecting left and right of the main body 2.
And is independent of the main body 2. A hydraulic cylinder 7 is provided vertically between the rear wheel frame 6 and the main body 2, and the main body 2 (cabinet 1) moves relative to the rear wheel 4 when the hydraulic cylinder 7 expands and contracts. Move up and down.

An engine 8 is mounted on the main body 2 in front of the cabinet 1, and its power is driven by a pulley and a belt mechanism 9.
Conveyed to 10. The power transmitted to the driving pulley 10 is transmitted to a traveling driving pulley 13 via a pulley and a belt mechanism 12 so as to be intermittent by a clutch mechanism 11, and is transmitted to the traveling driving pulley 13.
13 is powered by a sprocket and chain mechanism 14
Conveyed to. The sprocket and chain mechanism 14
The sprocket 15 is fitted on the support shaft 5 described above. Even if the rear wheel frame 6 rotates around the support shaft 5, the sprocket 15 does not hinder the transmission of power to the rear wheel 4.

A steering handle 16 is provided at a front portion of the main body 2, and a clutch lever 17 for operating the clutch mechanism 11 is provided here.
And a transmission lever 18 for controlling the rotation speed of the traveling drive pulley 13. As a result, when the clutch lever 17 is operated, the vertical hole drilling device A starts running. At this time, when the shift lever 18 is operated, the running speed is changed.

Inside the cabinet 1, a crack wheel 19 is provided.
10 power can be freely intermittently driven by the clutch mechanism 20
The information is transmitted via the belt mechanism 21. A tine rod 22 is connected to the crank wheel 19 with a pin 23, and a hollow cylindrical tine 24 is fixed to a lower end of the tine rod 22. Therefore, when the crank wheel 19 rotates, the tine rod 22 and the tine 24 move up and down. The vertical movement of the tine rod 22 is provided on the steering handle 16, and is controlled by operating the tine lever 25 which is intermittently operated by the clutch mechanism 20. By the way, the position of the tine 24 is set so that it goes away from the ground when it rises to the highest point, and it is almost inserted into the ground when it goes down to the lowest point.
When it is inserted into the ground, the core 26 of only that depth is extracted. Therefore, by repeating this operation,
The cores 26 rise one after another in the tines 24, and the preceding core 26 is pushed out from the upper end by the core 26 rising later.

FIG. 7 is a partial cross-sectional side view showing details of the tine 24,
FIG. 8 is also a rear view, and a guide tube 28 is mounted near the lower end of the tine rod 22 so as to guide the discharge port 27 upward and backward, and a tine 24 is provided inside the lower end of the guide tube 28. It is attached so that the upper end is inserted. One guide cylinder 28 is attached to one tine rod 22, and two to four tines 24 are attached to one guide cylinder 28. A plurality of sets of the tine rods 22 are provided, and the phases at the upper and lower positions are set to be different for each set. As a result, when the core 26 extracted by the tine 24 is pushed out from its upper end, the core 26 flies through the guide cylinder 28 and is discharged from the discharge port 27. In addition, near the tine 24, a fork-shaped crush plate 29 extends from the bottom of the main body 2 to hold the surrounding soil along the ground so that the surrounding soil is not raised even if the tine 24 is inserted and removed into the ground. Further, in order to prevent the core 26 discharged from the discharge port 27 of the guide tube 28 from scattering toward the tine rod 22 in the front, a rubber cover 30 whose lower end extends to the guide tube 28 is provided with a rear wall of the cabinet 1. And so on.

An earthen lump collecting device B is connected to the rear of the above vertical hole drilling device A and receives and collects the core 26 discharged from the guide cylinder 28.

The earthen lump collecting device B has a structure in which a running roller 31 also serving as a pressure reduction roller supports a main body frame 32 having an upright structure, and a connecting rod 34 extending forward from both side plates 33 constituting the main body frame 32 is provided in a cabinet of a vertical hole punching device A. It is pivotally connected to a pin 35 provided on one side wall. Chains 36 and 37 are attached to the upper and lower parts of both side plates 33, respectively.
The chains 36 and 37 are also connected.

The main transport belt 38 is attached to the main body frame 32 of the clod collector B.
And the sub-transport belt 39 are attached. Main conveyor belt 38
Is wound around six rollers 40 to 45 and stretched in a Z-shape as viewed from the right side (meaning viewed from the right side in the traveling direction). The lower horizontal part is a horizontal receiving part 46, The vertical portion is referred to as ascending transport portion 47, and the upper horizontal portion is referred to as horizontal discharge portion.

The sub-transport belt 39 is a roller among the rollers 40 to 45 described above.
It is wound around a roller 41 and another roller 49 provided above by a roller 43, and is stretched on the front surface of the main transport belt 38 in an I-shape when viewed from the right side. The vertically ascending portion is defined as an ascending transport portion 50, and the ascending transport portion 50 and the ascending transport portion 47 of the main transport belt 38 are provided so as to be in contact with each other.
In addition, on the outer periphery of the lower half of the roller 40 constituting the starting end of the horizontal receiving portion 46 of the main conveyor belt 38, a grounding body 51 whose starting end is grounded and extends rearward is fixed to both side plates 33, and provided.
A delivery plate 52 that is inclined rearward and downward rearward is connected to the front of the grounding body 51. Therefore, the main body frame 32 of the clod collector B is supported on the ground by the traveling roller 31 and the grounding body. The above-mentioned delivery plate 52 is set so as to be located ahead of the discharge port 27 of the guide cylinder 28 when this earthen block collecting device B is connected to the vertical hole drilling device A, and the core discharged from the discharge port 27 is provided. 26 is reliably transferred to the horizontal receiving portion 46 of the main transport belt 38 by the transfer plate 52.

By the way, only the main transport belt 38 is forcibly driven by the engine 53 provided on the upper part of the main body frame 32 in such a direction that the ascending transport section 47 moves upward. That is, one of the rollers 40 to 45 is a main transport belt driving roller (hereinafter referred to as a driving roller) 45, and the power of the engine 53 is connected to this via a clutch mechanism 54 and a transmission mechanism 55. .

FIG. 9 is a rear view showing the clutch mechanism 54. A belt 59 is attached between an output pulley 57 fixed to an output shaft 56 of the engine 53 and a driving pulley 58 provided near the driving roller 45. The power is interrupted by tensioning and loosening the belt 59 with a clutch arm 60 that rotates about a drive pulley 58. The rotation of the clutch arm 60 is performed via an operation transmission mechanism 62 including a link, a rod, a spring, and the like, which is performed by rotating a clutch lever 61 provided at another location.

FIG. 10 is a partial cross-sectional side view showing the transmission mechanism 55, and FIG. 11 is a partial cross-sectional front view of the same. The drive pulley 58 is fixed to a worm shaft 64 on which a worm 63 is formed.
To the worm wheel 65 fitted to the shaft end of the drive roller 45. When the clutch lever 61 is operated to transmit the power of the engine 53 to the drive pulley 58, the power is transmitted from the worm 63 to the worm wheel 65, and drives the main transport belt.

With the above configuration, the core 26 extracted by the vertical hole punching device A is discharged from the discharge port 27 of the guide cylinder 28, and the released core 26 is received by the horizontal receiving portion 46 of the main transport belt 38. Then, it is transported to the ascending transport unit 47,
At this time, the ascending transport section 50 of the sub-transport belt 39 is in contact with the ascending transport section 47 of the main transport belt 38.
The frictional force generated by the drive of 38 is also transmitted to the sub-friction belt 39, and is conveyed upward while sandwiching the core 26 between the two 38, 39.
The core 26 conveyed upward reaches the horizontal discharge section 48 from the vicinity where the sub-conveyor belt 39 is separated, and is discharged downward from the end. Note that guide bodies 66 are provided on the left and right sides of the upper surface of the horizontal discharge section 48 for moving the core 26 conveyed toward the end toward the center. A collection box 67 is provided below the end of the horizontal discharge section 48, supported by a frame 68 attached to the main frame 32. The discharged core 26 falls into the collection box 67 and is collected there. You. Below the collection box 67, a preliminary collection box 69 is also provided supported by a frame 70.
By the way, during the above operation, if the cabinet 1 is raised by extending the hydraulic cylinder 7 of the vertical hole drilling device A,
Since the tine 24 stops working on the ground, the operation can be interrupted by performing this operation. Further, at this time, the connection rod 34 is pulled by the chains 36, 37 and the like, and the soil mass collecting apparatus B is changed to a posture in which the ground contact body 50 floats from the ground.

FIG. 3 is a side view showing details of the drive roller 45,
FIG. 4 is an enlarged sectional view of the drive roller 45. Both ends 45a of the drive roller 45 are formed to have a smaller diameter than the center part 45b, and the outer periphery of the both ends 45a has substantially the same diameter as the center part 45b. In addition, the helical ridges 71 projecting at a fixed interval toward the center 45b toward the rear side in the rotation direction. Here, the diameter of the both ends 45a is preferably about 2 to 3 mm, and the both ends 45a and the central part 45b are preferably equally divided into three in the axial direction. The width of the ridge 71 is preferably about 0.15 to 0.3 in diameter, and the twist angle (lead angle) of the spiral is also preferably about 10 to 15 °. Adjacent ridges
It is desirable that the interval between the ridges 71 is wider than the width of the ridge 71, and the number of the ridges 71 is set based on this relationship and the diameter of the drive roller 45. Generally, the number of the ridges 71 is generally about 3 to 5. is there.

FIG. 5 is a partial side view of another example of the driving roller 45. In this example, the driving roller 45 itself uses a pipe having a uniform diameter, and the sleeve 72 is fitted to the central portion 45b. Thick (fixed by welding, etc.). In this case, since there is no need to cut out the small diameter portions of both, there is an advantage that the cost can be reduced.

FIG. 6 is an enlarged cross-sectional view of the ridge 71. The ridge 71 is formed by being fixed to the outer peripheral surfaces of both ends 45a of the driving roller 45 by welding or the like. The main conveyor belt 38 should not emit any material and should not chamfer this corner.
Has been found to be preferable in terms of driving.

It has been confirmed that when the driving roller 45 is used, the main transport belt 38 is driven with a sufficient driving force without causing a positional shift. In the case of a conventional drive roller, there was a case in which an operation failure occurred before the completion of one hole, but with the use of the drive roller 45, the work could still be performed even if the work was performed for 18 holes.

〔The invention's effect〕

As described above, since the present invention has been described above, the following effects can be expected.

i) Since both ends of the drive roller are smaller in diameter than the central portion, the drive roller is substantially driven by the middle and high rollers, and the effect of preventing displacement is large.

ii) However, since the projecting ridge whose outer periphery is substantially the same as the central portion is provided at both ends, a driving force is generated over the entire width of the driving roller, and the driving force does not decrease due to non-contact.

iii) The ridge has a helical shape that faces toward the rear in the direction of rotation toward the center, so that even if the main conveyor belt is displaced, the torsional angle generates a restoring force, and the effect is restored. There is.

iv) Since the ridges are provided at intervals, the main conveyor belt also comes into contact with the ridges, and is driven by both the ridges and the gap, generating a large driving force and causing slip, etc. Do not wake up.

[Brief description of the drawings]

FIG. 1 is a side view of a vertical hole punching device and a clod collecting device connected, FIG. 2 is a plan view of the clod collecting device, FIG. 3 is a side view of a driving roller, FIG. FIG. 5 is a partial side view showing another embodiment of the driving roller, and FIG.
Fig. 7 is an enlarged cross-sectional view of the ridge portion, Fig. 7 is a partial cross-sectional side view of the tine portion, Fig. 8 is a partial rear view of the same, Fig. 9 is a rear view showing a clutch mechanism of the clod collector, and Fig. 10 The figure is a partially sectional side view showing the drive system of the drive roller, and FIG. 11 is also a partially sectional front view. (Sign) A: Vertical hole punching device B: Clot collecting device 26: Clot (core) 38: Main transport belt 39: Secondary transport belt 45: Main transport belt drive roller 45a: Both ends 45b of 〃 …… Central part of 71 71 …… Protrusion

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A01B 45/00-45/04

Claims (1)

(57) [Claims] 1. A soil mass (26) connected to a vertical hole drilling device (A) and extracted by the vertical hole drilling device (A) is viewed from the right side as viewed from the right.
A main conveyor belt driving device for forcibly driving the main conveyor belt (38) in a mass collection device (B) that receives, conveys, discharges, and collects the main conveyor belt (38) and the I-shaped sub conveyor belt (39). The roller (45) is formed such that both ends (45a) have a smaller diameter than the central portion (45b), and the outer peripheral surfaces of both ends (45a) have substantially the same outer diameter as the central portion (45b), and A main conveyor belt of a lump collecting device, wherein a plurality of helical ridges (71) project toward the rear side in the rotation direction toward the center (45b) side at predetermined intervals. Drive roller structure.