JP2018080519A - Traction type sandpit cleaning work machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traction type sandpit cleaning work machine to mainly be used for the removal of small stones and other various foreign objects from a bunker on a golf course.SOLUTION: A traction type sandpit cleaning work machine comprises: a skid plate 22 that makes contact with a sandpit; a sand scooping blade 23 that faces a rear side position of the skid plate; a rotating brush 24 for sweeping the scooped up sand to a rear vibration sieve room R1; and a vibration sieve mechanism that acts on the swept up sand. The sand scooping blade 23 is set such that a ground cutting depth can be adjusted, with the rotating brush 24 arranged at a plurality of short constant lengths (widths) on each of side surfaces of a hollow square shaft laid longitudinally between the skid plate 22 and the sand scooping blade 23. The brush hairs are disposed such that they face in alternately differing directions, and are scattered and distributed along the longitudinal direction.SELECTED DRAWING: Figure 1

Description

  The present invention is a pulling type (riding type) that removes foreign matter (contamination) such as pebbles, wood chips, pine needles, and shells from golf course bunker, sandbox of school and park, beach (sandy beach) and other sandboxes. The present invention relates to a sandbox cleaning machine.

  As this type of sandbox cleaning work machine, those disclosed in the following Patent Documents 1 and 2 have been proposed. The foreign material collecting device described in Patent Document 1 includes a sand scooping blade edge (3) at the front end portion of the oscillating sieve (1), and a foreign material reservoir (4) at the rear end portion. 5) While being similar to the present invention in that the work can be carried on board, the sandbox cleaning sieve described in Patent Document 2 is a net-like reciprocating motion by the rotation of the rotor (7) provided with the sand scraping piece (6). This is similar to the present invention in that sand is introduced into the sieve cake (8).

JP 2014-34874 A Japanese Patent No. 4300266

  However, in the foreign matter collecting apparatus described in Patent Document 1, the swinging sieve body (1) is swung in the left and right (lateral) direction, as is apparent from the arrows in FIGS. In addition, the swinging sieve body (1) is in a posture state (see FIGS. 4 and 6) that leans upwardly from the blade edge (3) side that bites into the sand at the front end portion toward the rear where the foreign substance reservoir (4) exists. In this state, the pebbles and other foreign objects are not separated from the pebbles and other foreign objects by simply moving forward (advancing) with the cutting edge (13) slightly biting into the bunker (19) surface. It moves rearward and does not reliably accumulate inside the foreign substance reservoir (4) at the rear end portion, and is inferior in safety and efficiency in terms of its collecting action.

  On the other hand, the sandbox cleaning sieving machine described in Patent Document 2 is a walking type that is manually pushed by an operator, and the rotor (7) sinks deeply while traveling in the sandbox. It cannot be used comfortably and conveniently as a golf bunker.

  Further, during traveling in the sandbox, the sand scraped up by the sand scraping piece (6) of the rotating rotor (7) and its impurities are applied to the cover sheet (20) and the guide plate (23), and the sieve cake ( 8), but in the working environment that receives wind force, the cover sheet (20) causes the upper part of the rotor (7) and the casing (15) to have an arc shape as shown in FIGS. Therefore, it is impossible to keep the sand and its impurities in the screen (8) reliably and stably.

  In any case, in the configuration of the known invention described in Patent Documents 1 and 2, the sanding blade edge (3) / sand scraping piece (6) and the swinging sieve body (1) / sieving sieve (8) work. Since the operator is operating at the position immediately before the worker, the worker is exposed to sand dust and the like, and the deterioration of the working environment is particularly noticeable in the manual walking type of Patent Document 2.

  The present invention aims to improve such a problem, and in order to achieve the object, in claim 1, a traction that is detachably connected to a hitch frame that is lifted and lowered by a hydraulic cylinder mounted on a power unit. Type sandbox cleaning work machine,

  A skid plate attached to the front end of the work machine main body frame, a sand scooping blade that scoops up sand mixed with pebbles, pieces of wood, shells, and other foreign matters at a position behind this, and the skid plate and sand A rotating brush that sweeps the scooped sand from the top of the sand scissor blade to the rear vibrating screen chamber, a vibration screen mechanism of the swept sand, and a sand screen interposed between the front and rear of the scooping blade. A foreign matter discharge path for discharging the foreign matter remaining after dropping from the vibrating sieve chamber further to the rear, and a tail wheel for supporting the rear end portion of the work machine body frame,

  By undulating the ground surface of the skid plate in the vertical direction, the depth of the sanding blade to penetrate into the ground from the ground surface is determined so that it can be adjusted deeply or shallowly,

  Each of the rotating brushes is a plurality of relatively short fixed lengths consisting of a bristle and its planting holding base, and each flat side surface of a hollow angular shaft that crosses between the front and rear of the skid plate and the sanding blade. The brush bristles are arranged in different directions, and are scattered and distributed along the left-right direction. It is characterized in that it is determined to be included.

  Further, in claim 2, the planting holding base of the brush hair in the rotating brush is attached and fixed to each flat side surface of the hollow square shaft so that the amount of overhang of the brush hair can be adjusted to be large or small from each side surface. It is characterized by.

  According to the configuration of the first aspect, a plurality of sides of the hollow angular shaft that lie between the front and rear of the skid plate (shoe / shoe) that contacts the sandbox and the sanding blade that scoops up the sand from the sandbox As the arrangement of the brush bristles in the rotating brush in the direction of alternating different directions, it is mounted and fixed in a state of being distributed along the left-right direction (width direction). Since the rotating brush sweeps into the rear vibrating sieve chamber individually and sequentially, the sand is vibrated without leakage in the vibrating sieve chamber, and foreign matter such as pebbles remaining after sieving the sand is removed. It can be discharged from the discharge path.

  When the rotating brush is composed of a plurality of the brushes having a constant length (width) dimension shorter than the width dimension of the work machine main body frame, it is useful for individual exchange and improvement of durability.

  In that case, if the configuration of claim 2 is adopted, the rotation trajectory composed of a plurality of rotating brushes can be aligned in a certain circular shape, and the sand is swept away due to the positional relationship with the sand on the sand scooping blade. There is also an effect that can be easily adjusted and adjusted.

It is a side view showing the outline whole of the tow type sandbox cleaning work machine concerning the present invention. It is a rear view of a power machine. It is a slope view which extracts and shows a working machine. FIG. 4 is a side view of FIG. 3. FIG. 5 is a plan view of FIG. 4. FIG. 5 is a rear view of FIG. 4. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 5. It is a side view which shows the descent | fall operation state of a lift arm. It is a side view which similarly shows the raising operation state of a lift arm. It is a side view of the state which adjusted the biting depth of the sand scooping blade deeply. It is a side view of the state which adjusted the penetration depth of the sand-crawl blade similarly shallowly. It is a top view which extracts and shows a rotating brush. It is a 13-13 line expanded sectional view of Drawing 12. FIG. 4 is a perspective view of a state where a transmission belt and a pulley are removed from FIG. 3. It is a side view which shows the connection state of the hydraulic pump of an engine, and a working machine. It is explanatory drawing which shows the reciprocating motion of the vibration frame in a vibration sieve mechanism. It is a slope view which extracts and shows a vibration frame. It is a perspective view of the state which removed the sieve net from the vibration frame. It is a side view which extracts and shows a front vibration link. It is explanatory drawing of the state which adjusted the amplitude of the vibration frame large. It is explanatory drawing of the state which adjusted the amplitude of the vibration frame small similarly. It is a 22-22 line expanded sectional view of FIG. It is a side view of the embodiment in which the stirring rod is fixedly mounted horizontally. It is a side view of another embodiment which ensured the fixed clearance gap between the sand crawl blade and the vibration frame. FIG. 25 is a side view showing a state in which sand overflows from a certain gap in FIG. 24. It is a side view which shows the state which sand falls on the sand-dropping partition of a vibration sieve chamber, and falls. It is a side view under the action which scoops up sand and sweeps it into a vibration sieve chamber. It is a side view in the process of sieving sand in a vibrating sieve chamber. It is a side view in the process of collecting a foreign material from the discharge path to the collection basket.

  Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings. FIGS. 1 to 7 show an overall outline of a towed sandbox cleaning work machine using the power machine, and (V) is a three-wheel drive for riding. A car, a four-wheel tractor, or other power main machine, which is operated by an engine (2), a first hydraulic pump (3) operated by the engine (2), and a first hydraulic pump (3). Equipped with a hydraulic cylinder (4). (5) is a first hydraulic hose that connects the first hydraulic pump (3) and the hydraulic cylinder (4), and (6) is a second hydraulic pump that is operated by the engine (2). Drive the machine side hydraulic motor. (7) is an operator's seat.

  In addition, (8) is a hitch frame attached and fixed as a pair of left and right to the rear of the fuselage (1) or as a single piece extending in the left and right (lateral) direction, as shown in FIGS. A pair of left and right lift arms (10) pivotally attached to (8) via a horizontal pin (9) and a piston rod (11) that advances and retreats along the front-rear direction of the hydraulic cylinder (4) are pivoted. It is connected via a support pin (12).

  Further, (13) is a pair of left and right traction arms that extend in the front-rear direction longer than the lift arm (10), and one end portion (front end portion) of the hitch frame (through the horizontal pin (14)) 8) while the other end portion (rear end portion) of the pulling arm (13) is also connected to the left and right sides of the work machine body frame (16) to be described later via a horizontal pin (15). It is pivotally attached to the cover plate (17). (18) is a connecting rod (spacer) that is fixedly mounted between the left and right ends of one end (front end) of the pulling arm (13).

  In addition, the connecting beam of the two side cover plates (17) is located at a mid-high position where the traction arm (13) is pivotally attached to the two side cover plates (17) of the work machine body frame (16). (Toolbar) (19) is horizontally fixed and horizontally mounted, and a pair of left and right eyebolts (20) that are integrally suspended from the middle of the connecting beam (19), and the pair of left and right lift arms (10) Are connected via a hanger chain (21). The sandbox cleaning work machine (A), which will be described later, is pulled by the power machine (V).

  On the other hand, the sandbox cleaning work machine (A) towed by the power machine (V) is a skid plate attached to the front end of the work machine body frame (16) as shown in FIGS. (Shoe / Shoe) (22), and a blade (shovel) (23) for scooping up sand (a) mixed with pebbles and other various foreign matters (contaminants) (b) from the sandbox at the rear side position. A rotary brush (24) that sweeps the scooped sand (a) into the vibrating sieve chamber (R1), a vibrating sieve mechanism (solid separation mechanism) (S) of the swept sand (a), and A foreign matter collecting rod (25) for collecting pebbles and other foreign matters (b) remaining after sieving sand (a), and a tail wheel (26) for supporting the work machine main body frame (16) at the rear end portion are provided. ing.

  The main components of the sandbox cleaning work machine (A) will be specifically described in order. First, the work machine body frame (16) is a front surface covering a pair of left and right side cover plates (17) and a rotating brush (24). The cover plate (27) and the horizontal top cover plate (28) are assembled in a surrounding wall shape, and the middle part of the top cover plate (28) serves as a louver (29) from which a vibrating sieve chamber ( The inside of R1) can be seen through.

  Further, a sand-dropping partition wall (30) projects integrally downward from the top cover plate (28) and is horizontally mounted, and a vibration sieving chamber (a front half portion of which can be seen through the louver (29)). As for R1), the remaining second half is divided as a pebble or other foreign matter discharge passage (R2). The back wall of the vibrating sieving chamber (R1) is sanded and functions as a partition wall (30).

  Moreover, an opening / closing door (32) is pivotally attached to the lower end portion of the sand-dropping partition wall (30) via at least a pair of left and right hinges (31), and the foreign matter (b) such as pebbles is passed through a vibrating sieve chamber ( Although the fluid flows from R1) toward the rear foreign matter discharge passage (R2), the foreign matter (b) is prevented from returning and flowing toward the reverse front vibrating chamber (R1). The open / close door (32) serves as a check valve for the foreign matter (b).

  In that case, in order to receive the sand (a) from the rotating brush (24) without leakage in the illustrated embodiment, the vibrating sieve chamber (R1) in front of the sand-dropping partition wall (30) is provided with a work machine body frame (16 The left and right side cover plates (17) and the top cover plate (28) are enclosed in a gate-shaped cross section. Compared with this, the top cover plate (28) is located behind the sanddrop partition (30). ) And the upper surface of the foreign matter discharge path (R2) is open, but the upper surface may be closed by the top cover plate (28).

  In addition, although the said sand-dropping partition wall (30) is fixedly mounted in a vertical state in the illustrated embodiment, as long as the opening / closing door (32) serving as a check valve for the foreign matter (b) is provided at the lower end thereof, The sand-dropping partition wall (30) may be installed in a downwardly inclined state.

  The left and right side cover plates (17) of the work machine main body frame (16) are formed so as to partially protrude upward and forward in front of the louver (29) of the top cover plate (28). The connecting beam (toolbar) (19) mentioned above lies horizontally across the position immediately before the front cover plate (27). The horizontal connecting beam (19) is at a midway height position on both side cover plates (17), and both ends of the skid plate (22) are connected to the lower ends of the side cover plates (17). It is pivotally mounted via a pin (33) so as to be undulating and rotatable.

  That is, the skid plate (22) is shaped into a pseudo obtuse triangle in a side view as shown in FIGS. 10 and 11, crosses the work machine main body frame (16), and has both left and right sides having a certain length (L1). The front end portion of the side attachment piece (34) is pivotally attached to both side cover plates (17) by the fulcrum pin (33). (35) is an installation angle adjustment handle for the skid plate (22), and the lower end portion of the handle shaft (36) suspended so as to penetrate the central portion of the connecting beam (19) is connected to the skid plate (22). 22) It is pivotally connected to the rear end portion, and the middle portion of the handle shaft (36) and the central portion of the connecting beam (19) for bearing it are kept in a screwed and fastened state.

  Therefore, by rotating the adjustment handle (35), the rear end of the skid plate (22) can be raised and lowered around the fulcrum pin (33) located at the remaining front end, The ground contact surface (surface) (GL) at the rear end can be adjusted to be higher or lower.

  Furthermore, the sanding blade (excavator) (23) mentioned above crosses to the rear side position of the skid plate (22), and its front end (front end) is in contact with the skid plate (22). It is being fixed to the lower end part of the said both side cover plates (17) as the downward inclination state which digs in only the required depth (d) from the ground (GL) to the ground (in the sand). (37) are left and right side attachment pieces of the sand scooping blade (23) with respect to the both side cover plates (17).

  As a result, adjusting the ground contact surface (GL) of the skid plate (22) to be higher or lower by rotating the adjustment handle (35) means that the sanding blade (23) is grounded from the ground contact surface (GL). It means to adjust the depth (d) of biting in relatively deeply or shallowly. (L2) indicates a certain length of the sand cradle blade (23).

  In the illustrated embodiment, the sanding angle (α) of the sanding blade (23) is set to be constant, for example, about 30 degrees or about 45 degrees, and only the depth (d) that penetrates into the ground is deep or shallow. Although it can be adjusted and set, it may be determined so that the sanding angle (α) can be adjusted to be larger or smaller depending on the wetness of the sandbox.

  Speaking of the rotating brush (24), as shown in FIGS. 12 and 13, it is composed of a brush hair (38) and a holding base (39) on which it is planted, and its relatively short constant length. A plurality of lengths (widths) (L3) (a total of 5 in the illustrated example) are connected to each side surface of the hollow angular shaft (40) having a regular polygonal cross section (square in the illustrated example) with a through bolt (41) and a fixing nut ( 41) The brush bristles (38) are attached in a scattered distribution state along the longitudinal direction (left-right direction) as an array in which the brush bristles (38) point alternately in different directions.

  As a positional relationship between the skid plate (22) and the sand scooping blade (23), the left and right round shaft portions (journals) (43) of the hollow angular shaft (40) are the working machine. The left and right side cover plates (17) of the main body frame (16) are rotatably supported. (44) is a pair of left and right bolt receiving long grooves cut out in the planting holding base (39) of the brush bristles (38), and the brush bristles (38) are flat sides of the hollow angular shaft (40). Used to adjust the amount of protrusion from the surface. (C) shows the rotation trajectory of the bristles (38) reaching the sand (a) to be scooped up by the sanding blade (23).

  In that case, either the left or right round shaft portion (43) of the hollow angular shaft (40) projects laterally from the corresponding side cover plate (17) of the work machine body frame (16). A rotating brush transmission pulley (45) is fitted and integrated with the protruding tip.

  (46) is a hydraulic motor driven by the second hydraulic pump (6) on the motive power machine (V) side, as shown in FIGS. 3 to 5 and FIGS. Is fixed to the front upper corner of the side cover plate (17) on the same side as the side from which the transmission pulley (45) for the rotating brush projects, and extends laterally from the side cover plate (17). The output pulley (48) on the projecting output shaft (47) and the transmission pulley (45) for the rotating brush on the round shaft portion (43) of the hollow angular shaft (40) are endless transmission belts (V belts). ) (49). (50) is a second hydraulic hose that connects the second hydraulic pump (6) and the hydraulic motor (46) on the work machine (A) side.

  Next, the vibration sieving mechanism (S) will be described in detail. As apparent from FIGS. 14 to 16, this is a continuous enclosure bottom frame between the vibration sieving chamber (R1) and the foreign matter discharge passage (R2). And a total of four vibration links (52) (53), one pair before and after the vibration frame (51) is suspended from the left and right side cover plates (17) of the work machine body frame (16). ) And the vibration frame (51) suspended from both side cover plates (17) linearly reciprocate back and forth (traveling direction) by the rotational power taken out from the hydraulic motor (46). And a power conversion mechanism (B) to be moved.

  The vibration frame (51) serves as an enclosure bottom frame, and its front edge, left and right side edges, and rear edge are bent and bent as shown in FIGS. 4 and 7, so that the vibration sieve chamber (R1) and The sand (a) and the foreign material (b) are formed in a U-shaped cross section with a certain depth so that the foreign material discharge path (R2) does not overflow, but the rear edge of the vibration frame (51) is shown in FIGS. By bifurcating into a bifurcated shape in plan view, a pair of left and right narrow foreign matter discharge ports (54) are defined between the left and right side edge portions.

  And the said foreign material collection gutter (25) is detachably inserted and fixed from the back with respect to each foreign material discharge port (54). (55) is a positioning pin at the time of insertion, and protrudes downward from the lower edge of the opening of the foreign matter collecting rod (25), and receives a pin formed corresponding to the lower edge of the foreign matter discharge port (54). It is inserted and locked into the hole (56). (57) is a locking metal fitting (Patchon lock) that fixes and maintains the inserted state, and is attached to the upper surface of the foreign matter collecting rod (25) and is installed corresponding to the upper edge of the opening of the foreign matter outlet (54). The hook piece (58) is detachably locked. (59) is a handle attached to the upper surface of the foreign material collecting rod (25).

  In the case of the illustrated embodiment, the rear end edge portion serving as the foreign matter discharge path (R2) of the vibration frame (51) branches into a bifurcated shape in plan view, and is separated into a pair of left and right foreign matter discharge ports (54). Although a small foreign matter collecting rod (25) is attached and used, the rear end edge of the vibration frame (51) is used as an overall foreign matter collecting recess, and is installed in a state transverse to the work machine body frame (16). May be.

  The vibrating frame (51) has a single sieve screen (60) which is a continuous bottom surface between the vibrating sieve chamber (R1) and the foreign matter discharge passage (R2), and a plurality of fixing bolts (61). For example, the sieve mesh (60) having a different mesh diameter can be exchanged. While sieving sand (a) having a particle size smaller than the diameter of the sieve mesh from the vibrating sieve chamber (R1), large pebbles, pieces of wood, pine cones, dead leaves, shells, garbage, and other foreign matters (b) remaining after the separation, Collecting from the foreign matter discharge path (R2) to the rear foreign matter collecting bowl (25). As the sieve screen (60), it is preferable to use a stainless steel wire mesh.

  Of the total four vibration links (52) and (53) that suspend the vibration frame (51), the left and right pair of the front vibration link (52) is taller than the left and right pair of the rear vibration link (53) ( Long), the midway height position is substantially the middle of the left and right side cover plates (17) in the work machine body frame (16), and the lower end is the front end position of the left and right side edges of the vibration frame (51). Are pivotally connected to each other via horizontal fulcrum bolts (62) (63).

  On the other hand, the left and right pair of the rear vibration link (53) is short (short), and the upper ends of the left and right side cover plates (17) of the work implement main body frame (16) are close to the rear ends. Are pivotally attached to the corresponding positions of the left and right side edges of the vibration frame (51) via horizontal fulcrum bolts (64) (65), respectively, and the vibration links (52) (53) as a whole It forms a four-bar parallel link mechanism.

  Moreover, in this case, the fulcrum bolt (62) that pivots at a mid-height position of the front vibration link (52) with respect to both side cover plates (17) of the work machine body frame (16) has its pivot position. For example, as shown in FIG. 19, the upper, middle and lower three stages (62a), (62b) and (62c) have a working length (height) (H) from the fulcrum bolt (62) to the fulcrum bolt (63) at the lower end. As a result, the amplitude (W) of the reciprocating motion linearly in the front-rear direction of the vibration frame (51) can be changed as shown in FIGS. Can be adjusted to be larger or smaller.

  From the upper half of the fulcrum bolt (62) at the midway height position of the pair of tall (long) left and right front vibration links (52), a rectangular vibration frame (66) elongated in the vertical direction is directed forward. It is overhanging. (67) is a horizontal state penetrating through the pair of left and right vibrating frames (66), and the rear upper corner of the front side position where the left and right side cover plates (17) of the work machine body frame (16) are largely overhanging. A pair of left and right eccentric rings (68) are fitted on the front end of the transmission shaft that is rotatably supported by the two side cover plates (17) as shown in FIGS. Integrated.

  Moreover, the vibration generating pulley (69) is also provided only at the tip end of the transmission shaft (67) projecting laterally from the side cover plate (17) on the same side as the rotating brush transmission pulley (45). The output pulley (48) of the hydraulic motor (46) and the transmission pulley (45) for the rotating brush on the hollow square shaft (40) are integrated by being fitted in a parallel state with the eccentric ring (68). The linked transmission belt (49) is also wound around a vibration transmission pulley (69) on the transmission shaft (67). The endless transmission belt (49) wound between the three pulleys (45), (48) and (69) is driven to rotate in the direction of the arrows in FIGS. 4 and 14 by the hydraulic motor (46). It has come to be.

  In this case, the eccentric ring (68) that rotates eccentrically about the axis thereof by the rotation of the transmission shaft (67) passes through the bearing (70) fitted to the outer peripheral surface thereof, and the vibration frame (66). When the eccentric ring (68) rotates eccentrically with the transmission shaft (67) in an integral manner, the front vibration link (52) is about to rise. The half vibration frame (66) is a slider, and vibrates in the front-rear direction by the amount of eccentricity. As a result, the vibration frame (51) reciprocates in the front-rear direction around the fulcrum bolt (62).

  Furthermore, a total of four vibration links (52) (53) for hanging the vibration frame (51) from the left and right side cover plates (17) of the work machine body frame (16) are shown in FIG. When the eccentric wheel (68) rotates 180 degrees eccentrically in such a stopped state, the vibration frame (51) moves backward as shown in FIG. When rotated, as shown in FIG. 16 (c), the vibration is caused to return to the front, and the sand (a) placed on the sieve mesh (60) of the vibration frame (51) is sieved, and pebbles and others The foreign matter (b) is surely moved rearwardly, and in combination with the opening / closing door (32) of the sand-dropping partition wall (30), the foreign matter (b) is never moved forward again. ing.

  In this respect, in the illustrated embodiment, a power conversion mechanism (B) including a vibration frame (slider) (66) of the front vibration link (52) and an eccentric ring (68) on the rotation transmission shaft (67) is employed. However, the crank tip instead of the eccentric ring (68) on the rotation transmission shaft (67) and the upper end portion of the front vibration link (52) are pivotally connected by a connecting rod (arm) having a fixed length. Thus, a mechanism (B) for converting the crank rotational motion into a linear reciprocating motion along the front-rear direction of the vibration frame (51) may be used.

  In addition, a tall gate frame (72) is fixedly mounted horizontally at the rear end of the work machine body frame (16), and the tail wheel (26) is placed at the center of the gate frame (72). A support shaft (73) is attached so as to freely swing (turn) around a vertical axis.

  As described above, the vibrating frame (51) has a certain depth that prevents the sand (a) and foreign matter (b) from overflowing from the vibrating sieve chamber (R1) and the foreign matter discharge passage (R2). A plurality of rod receiving elongated holes (74) extending in the front-rear direction as shown in FIG. 23 are formed in the middle height positions of the left and right side edges forming the same, and penetrated through the rod receiving elongated holes (74). A plurality of horizontal stirring rods (75) were fixedly mounted horizontally on the left and right side cover plates (17) of the work machine main body frame (16), and were wetly deposited in the vibration sieve chamber (R1). It is preferable that the agglomerate of sand (a) is reliably decomposed and collapsed by the stirring rod (75).

  Further, a constant gap (O) as shown in FIGS. 24 and 25 is secured between the front end edge of the vibration frame (51) having a fixed depth and the rear end of the sand scoop blade (23). Then, when the amount of sanding of the sanding blade (23) is excessive, it overflows from the gap (O) by itself, so that the processing capacity on the vibration sieving action is insufficient, It is desirable to determine so that the sieving effect does not decrease.

  Since the towed sandbox cleaning work machine (A) of the illustrated embodiment has the above-described configuration, for example, when cleaning a bunker in a golf course, the body of the power main machine (V) is used. (1) The work machine main body frame (16) of the sandbox cleaning work machine (A) is moved from the rear to the lift arm (10) and the pulling arm (13) of the hitch frame (8) attached to the side. ) To move up and down freely.

  In addition, the installation angle adjustment handle (35) of the skid plate (claw / shoe) (22) equipped on the work machine (A) side is rotated, and the sanding blade (from the ground surface (GL)) ( The depth (d) that the excavator (23) bites into the ground is appropriately adjusted and set, and the amplitude (W) of the vibration frame (51) forming the vibration sieve mechanism (S) is also on the front side. The vibration link (52) is adjusted and set to a suitable size by changing the height of the pivot position (fulcrum bolt (62)).

  Then, if the work machine (A) pulled by the power machine (V) is put in a bunker on a golf course and travels forward, the sand (a) of the bunker becomes sandy blade as shown in FIG. (23) scooped up, swept into the vibrating sieve chamber (R1) by the rotation of the rotating brush (24), and placed on the sieve mesh (60) forming the bottom surface of the vibrating frame (51) It becomes. The sand (a) that has been blown far behind by the rotating brush (24) hits the sand-dropping partition wall (30) and falls onto the sieve screen (60) of the vibrating sieve chamber (R1).

  The vibration frame (51) is moved in the front-rear direction by a power conversion mechanism (B) comprising a vibration frame (slider) (66) of the front vibration link (52) and an eccentric ring (68) on the rotation transmission shaft (67). The sand (a) placed on the sieve mesh (60) is subjected to the vibrating sieve action as shown in FIGS. 27 and 28, and only the sand (a) is sieved to the bunker. Will be dropped.

  Even if the sand (a) reaches the rear foreign matter discharge path (R2) from the vibration sieve chamber (R1), the screen (60) of the vibration frame (51) also exists in the foreign matter discharge path (R2). Therefore, it is sieved from here, and there is no possibility of causing leakage in the separation action.

  On the other hand, pebbles, wood chips, pine needles, pine cones, dead leaves, garbage, and other various foreign matters (contaminants) (b) that have been sieved with sand (a) and remained on the sieve mesh (60) of the vibration frame (51) By the linear reciprocating motion of the vibration frame (51), the vibration sieve chamber (R1) gradually passes through the rear foreign substance discharge path (R2) to the foreign substance collection rod (25) of the foreign substance discharge port (54). And collected in the foreign material collecting bowl (25).

  In that case, a sand-dropping partition wall (30) is interposed between the vibration sieve chamber (R1) and the foreign matter discharge passage (R2), and a check valve for the foreign matter (b) is provided at the lower end thereof. Since the opening / closing door (32) that works as a pivot is pivotally attached, there is no risk of the foreign matter (b) returning from the foreign matter discharge path (R2) to the vibrating sieve chamber (R1). In the unlikely event that the foreign matter discharge path (R2) is stagnated and does not move smoothly to the inside of the foreign matter collecting rod (25), the hydraulic cylinder (4) mounted on the power unit (V) as shown in FIG. ), And the working machine (A) may be lifted to a forwardly rising inclination state.

  Then, the foreign matter (b) enters the rear foreign matter collecting rod (25) along the sieve mesh (60) which is inclined downward from the foreign matter discharge path (R2) of the vibration frame (51). It will be. Therefore, in any case, if a certain amount of the foreign matter (b) accumulates in the collecting basket (25), the operator gets off the seat (7) of the power machine (V) or another assistant. From the foreign matter discharge port (54) of the vibration frame (51), the collection basket (25) in which the foreign matter (b) is accumulated is extracted and carried to a suitable collection place by the handle (59) for disposal, What is necessary is just to transfer collectively to the separate large collection box (76) (refer FIG. 1) mounted in the top cover plate (28) of the working machine main body frame (16), and to discard after completion | finish of cleaning operation | work.

  According to the above configuration of the illustrated embodiment, the skid plate (shoe / shoe) (22) that keeps the front end portion of the work machine body frame (16) in a stable grounding state, and thereby the depth of biting into the ground ( d) Sweep the sand (a) scooped up by the sanding blade (23) between the front and back of the sanding blade (excavator) (23) to be adjusted and set into the vibrating sieve chamber (R1). Since the rotating brush (24) is interposed, the collaborative action of the rotating brush (24) and the sand-crawl blade (23) causes pebbles, pieces of wood, dead leaves, shells, and other various foreign substances (b). The mixed sand (a) can be reliably put into the vibrating sieve chamber (R1) of the work machine (A).

  At that time, the rotating brush (24) is composed of a plurality of brush bristles (38) and its planting holding base (39) as shown in FIGS. 12 and 13, and each side surface of the hollow square shaft (40) having a regular polygonal cross section. As an array that points to different directions alternately, it is attached and fixed in a scattered distribution along the longitudinal direction (left and right direction), so that the sand moves as if humans move the left and right hands alternately and scrape the water. Even if (a) is a heavy heavy nodule with moisture, each of the brush hairs (38) will sequentially sweep the sand (a) separately, and as a result, it will not receive an excessive load, resulting in improved durability To help.

  In addition, a vibration frame (51) that forms a continuous enclosure bottom frame between the vibration sieve chamber (R1) and the foreign matter discharge path (R2) is provided from the left and right side cover plates (17) of the work machine body frame (16). It is suspended so as to be able to perform a linear reciprocating motion in the front-rear direction (traveling direction) via a node parallel link mechanism, and a sieve mesh (60) is attached to the bottom surface thereof.

  Moreover, between the front and rear of the vibrating sieve chamber (R1) forming the upper space of the vibrating frame (51) and the foreign matter discharge path (R2), the lower end functions as a check valve for the foreign matter (b). A sand-dropping partition wall (30) provided with an open / close door (32) is inserted and installed, and a vibration sieve chamber (R1) on the front side thereof is connected to the front cover plate (27) of the work machine body frame (16) and both the left and right sides. Surrounded by the side cover plate (17) and the top cover plate (28).

  Therefore, in combination with the work machine (A) to be pulled by the power machine (V), an operator sitting on the seat (7) of the power machine (V) is exposed to sand dust or the like. The sand (a) mixed with various foreign matters (b) is reliably vibrated by the vibrating sieve chamber (R1), and only the sand (a) is sieved ( 60), and the remaining pebbles, pieces of wood, dead leaves, and other foreign matter (b) are reliably and stably moved from the vibrating sieve chamber (R1) to the rear foreign matter discharge path (R2) and forward again. It can be collected inside the foreign material collecting bowl (25) without fear of moving back, and is excellent in the smoothness and sieving effect of its vibration sieving action. The fact that the sieve mesh (60) can be attached / detached / replaced with that having a different sieve mesh size is extremely convenient, and can easily cope with various foreign substances (b).

  In that case, the foreign matter collecting rod (25) is inserted into and fixed to the pair of left and right narrow foreign matter outlets (54) branched in a bifurcated shape in the foreign matter discharge path (R2) from the rear so that it can be freely inserted and removed. Because of the small product having (59), there is also an effect that the disposal of the foreign matter (b) collected inside can be conveniently performed.

  In addition, although the usage method of illustration embodiment was demonstrated as a cleaning operation | work which removes various foreign materials (b) other than sand (a) from the bunker of a golf course, the tow-type sandbox cleaning work machine (A) of this invention is a golf. It can be widely applied not only to bunker in the field but also to sandboxes in schools and parks, beaches and other sandboxes.

(1) ・ Airframe (2) ・ Engine (4) ・ Hydraulic cylinder (8) ・ Hitch frame (10) ・ Lift arm (11) ・ Piston rod (13) ・ Towing arm (16) ・ Worker frame (17) ) ・ Side cover plate (19) ・ Linked beam (toolbar)
(22) Skid plate (橇 / Shoe)
(23) · Sand-crawl blade (excavator)
(24) ・ Rotating brush (25) ・ Foreign material collecting rod (26) ・ Tail wheel (27) ・ Front cover plate (28) ・ Top cover plate (29) ・ Louvre (30) ・ Sanddrop bulkhead (31) ・ Hinges (32) · Opening and closing door (33) · Support pin (35) · Adjustment handle (36) · Handle shaft (38) · Brush hair (39) · Planting base (40) · Hollow square shaft (41) · Through bolt (43)-Round shaft (journal)
(44) · Bolt receiving long groove (45) · Rotary pulley transmission pulley (46) · Hydraulic motor (47) · Output shaft (48) · Output pulley (49) · Transmission belt (51) · Vibration frame (52) ( 53) ・ Vibration link (54) ・ External discharge port (55) ・ Positioning pin (56) ・ Pin receiving hole (57) ・ Locking bracket (58) ・ Hook piece (59) ・ Handle (60) ・ Sieving mesh (61 ) ・ Fixing bolts (62) (63) (64) (65) ・ Support bolts (66) ・ Vibration frame (67) ・ Transmission shaft (68) ・ Eccentric ring (69) ・ Excitation vibration pulley (70) ・Bearing (74), rod receiving slot (75), stirring rod (A), sandbox cleaning machine (B), power conversion mechanism (O), gap (GL), ground contact surface (H), working length (high) Sa)
(R1) · Vibrating sieve chamber (R2) · Foreign matter discharge path (S) · Vibrating sieve mechanism (V) · Power machine (W) · Amplitude (a) · Sand (b) · Foreign matter (d) · Encroaching depth The

The rotary brush as formed Ru multiple brush bristles and its planting holding base, to the skid plate and the sand scoop flat sides surfaces of the hollow angle axis laterally bridged between front and rear cross the blade, its bristles By arranging and fixing in an array that points alternately in different directions and scattered along the left-right direction, it was determined that the above-mentioned sand was swept sequentially from the sanding blade by a plurality of brush hairs. It is characterized by.

Claims (2)

It is a towed sandbox cleaning work machine that is detachably connected to a hitch frame that is lifted and lowered by a hydraulic cylinder mounted on the power machine,
A skid plate attached to the front end of the work machine main body frame, a sand scooping blade that scoops up sand mixed with pebbles, pieces of wood, shells, and other foreign matters at a position behind this, and the skid plate and sand A rotating brush that sweeps the scooped sand from the top of the sand scissor blade to the rear vibrating screen chamber, a vibration screen mechanism of the swept sand, and a sand screen interposed between the front and rear of the scooping blade. A foreign matter discharge path for discharging the foreign matter remaining after dropping from the vibrating sieve chamber further to the rear, and a tail wheel for supporting the rear end portion of the work machine body frame,
By undulating the ground surface of the skid plate in the vertical direction, the depth of the sanding blade to penetrate into the ground from the ground surface is determined so that it can be adjusted deeply or shallowly,
Each of the rotating brushes is a plurality of relatively short fixed lengths consisting of a bristle and its planting holding base, and each flat side surface of a hollow angular shaft that crosses between the front and rear of the skid plate and the sanding blade. The brush bristles are arranged in different directions, and are scattered and distributed along the left-right direction. A towed sandbox cleaning machine characterized by   The planting holding base of the bristle in the rotating brush is attached and fixed to each flat side surface of the hollow square shaft so that the amount of overhang of the brush bristle can be adjusted to be large or small from each side surface. The tow-type sandbox cleaning work machine according to 1.

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