JP2010059613A - Soil improving machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a soil improving machine capable of opening and closing a lid body of an additive hopper by slight force and preventing the lid body of the additive hopper from interfering with a crane mounted on the soil improving machine. <P>SOLUTION: This soil improving machine is provided with the first lid body 35 and the second lid body 34 covering a charging port 31 to be opened and closed by turning in an upper part of the additive hopper 30. Each of these first and second lid bodies 35, 34 covers the charging port 31 partially and is set to have such size that covers the whole charging port 31 with them both. The direction of turning of the first lid body 35 and that of the second lid body 34 are set to be the same direction. The direction of opening of the first and second lid bodies 35, 34 is set to be on the opposite side to a crane 104 side in the transverse direction of a body frame 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention has an additive hopper that receives and stores additive materials such as lime, cement, and wood chips from the upper inlet, and is provided with a lid that covers the inlet at the upper portion of the additive hopper. It relates to a machine whose lid opens and closes by rotation.

  As this kind of conventional soil improvement machines, there are those disclosed in Patent Documents 1 and 2. In this conventional soil improvement machine, the lid covering the inlet of the additive hopper is composed of a single plate-like member.

In addition, some types of soil improvement machines include a crane disposed on the side of the additive hopper. The crane is used to lift a flexible container bag containing the additive (flexible container back) above the additive hopper. (See Patent Document 3)
Japanese Patent No. 3727870 Japanese Patent No. 3798282 JP-A-11-217822

  The lid in the conventional soil improvement machine described above is heavy in itself and is easily blown by the wind when opening and closing. For this reason, a large physical burden is imposed on the person who opens and closes the lid. In order to reduce this physical burden, instead of a lid made of a single plate-like member, the technology that provided two lids about half the size of this lid so as to be double-spread has been previously used. It is from.

  As mentioned above, in some types of soil improvement machines, a crane is placed on the side of the additive hopper, and this crane is used to add a flexible container bag (flexible-container-back) containing the additive. Some are lifted above a material hopper. When the above-mentioned technique is adopted in which two lids are double-opened with respect to the additive hopper of this kind of soil improvement machine, the two lids in the open state protrude from the additive hopper in opposite directions, One of the two lids will be positioned to protrude to the side of the additive hopper on the side adjacent to the crane, and may interfere with the crane.

  The present invention has been made in consideration of the above-mentioned circumstances, and an object of the present invention is to allow the lid of the additive hopper to be opened and closed with a slight force, and to add the lid of the additive hopper and the soil improvement machine. An object of the present invention is to provide a soil conditioner capable of preventing interference with a crane attached to a crane.

  The soil improvement machine of the present invention is configured as follows to achieve the above-described object.

[1] The present invention relates to a main body frame, an earth and sand hopper provided on one side in the longitudinal direction of the main body frame and receiving earth and sand, and located below the earth and sand hopper provided on the main body frame and discharged from the earth and sand hopper. A conveying means for conveying the earth and sand, a power unit provided on the other side in the longitudinal direction of the main body frame, provided with a driving source, and an inlet for an additive provided at a substantially center in the longitudinal direction of the main body frame And an additive material hopper provided on the upper side of the main body frame and positioned between the power unit and the additive material hopper in the longitudinal direction of the main body frame. A crane capable of lifting the material above the additive hopper, and below the additive hopper in the main body frame, A soil improvement machine comprising: a mixing device that mixes earth and sand supplied from a feeding means and an additive supplied from the additive hopper; and a discharge conveyor that discharges the improved soil generated by the mixing device. The additive hopper has first and second lids for covering the charging port, and the first and second lids partially cover the charging port and cover both the entire charging port. The size is set, and both the first and second lids are supported on the upper portion of the additive hopper so as to rotate and open toward the other side in the short direction of the main body frame. And

  In the present invention described in “[1]”, the additive hopper has first and second lids for covering the charging port, and the first and second lids are respectively the charging port. The first and second lids can be formed to be lighter than the lid made of a single plate-like member. it can. Then, by opening the first and second lids individually, it is possible to open and close the lid of the additive hopper with a slight force, compared to the conventional case of opening the lid made of a single plate-like member. it can.

  Further, according to the present invention described in “[1]”, both the first and second lids are rotated and opened toward the other side in the short direction of the main body frame, that is, the side opposite to the crane side. Therefore, the first and second lids do not protrude toward the crane. Thereby, interference with the cover body of an additive material hopper and a crane can be prevented.

[2] The present invention is the invention described in “[1]”, wherein the additive hopper has a frame portion that forms the charging port at an upper portion thereof, and the first lid body includes the first lid body. A first cover that covers substantially half of the other side of the insertion port in the lateral direction of the main body frame in a state where the lid is closed; A first rotation support portion is provided for supporting the first cover portion so that the first cover portion is rotated and opened to the other side in the short direction of the main body frame, and the second lid body is closed by the second lid body. A second cover portion that covers substantially half of one side of the insertion port in the short direction of the main body frame in the short state, and 1 extending from the second cover portion toward the other side in the short direction of the main body frame A pair of arm portions, and a short direction of the main body frame in the frame portion On the other side, there is provided a second rotation support portion that rotatably supports the arm portion so that the second cover portion rotates and opens to the other side in the short direction of the main body frame. The two-rotation support portion is disposed at a position between the second cover portion in a state where the second lid is closed and the first rotation support portion in the short direction of the main body frame. And

  According to the present invention described in “[2]”, the second rotation support portion that rotatably supports the second lid body on the frame portion is moved from the second cover portion to the first cover portion by the pair of arm portions. It can be provided separately on the rotation support part side. Thereby, it is possible to easily set a large opening area of the charging port by the second lid.

[3] According to the present invention, in the invention described in “[1]” or “[2]”, the first lid is provided to be openable and closable in a state in which the second lid is closed. The second cover part of the two lids is provided with a connection part capable of connecting a supply pipe extending from the silo.

  According to the invention described in “[3]”, the first lid can be opened and closed with the supply pipe connected to the additive hopper.

  According to the present invention, as described above, the lid of the additive hopper can be opened and closed with a slight force, and interference between the lid of the additive hopper and the crane attached to the soil improvement machine is prevented. be able to.

  A soil improvement machine according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a left side view of a soil improvement machine according to an embodiment of the present invention. FIG. 2 is a perspective view of the additive hopper and the scaffolds and cranes arranged around the additive hopper. 3-1 is an enlarged perspective view of the additive hopper shown in FIG. 3-2 is an enlarged rear view of the additive hopper shown in FIG. FIG. 4-1 is a perspective view of the additive hopper with only the first lid of the first and second lids opened. FIG. 4-2 is an enlarged rear view of the additive hopper shown in FIG. 4-1. FIG. 5A is a perspective view of the additive hopper with both the first and second lids opened. FIG. 5-2 is an enlarged rear view of the additive hopper shown in FIG. 5-1. FIG. 6 is a perspective view of an additive hopper with both the first and second lids opened, and a scaffold and a crane disposed around the additive hopper. FIG. 7 is an enlarged view corresponding to the VII-VII cross section showing the overlapping portion of the first and second lids in a simplified manner. FIG. 8A is a perspective view of the additive hopper in which the tip of the silo connection pipe and the air bleeding pipe are connected. FIG. 8-2 is a perspective view of a state in which the first lid of the additive hopper shown in FIG. 8-1 is opened. FIG. 9 is a perspective view of the additive hopper with the opening and closing directions of the first and second lids reversed and the scaffolds and cranes arranged around the additive hopper.

  As shown in FIG. 1, the soil improvement machine 1 according to this embodiment includes a traveling body 2 and is self-propelled. The traveling body 2 includes a main body frame 3 and a pair of traveling devices 4 arranged in parallel to the left and right below the main body frame 3. The framework of the traveling device 4 is formed by a track frame 5, and the track frame 5 is coupled to the main body frame 3 between the left and right traveling devices 4. Drive wheels 7 driven by a traveling motor 6 (hydraulic motor) and driven wheels 8 (idlers) are provided at both front and rear ends of the track frame 5, respectively. A crawler belt 9 is wound around the driving wheel 7 and the driven wheel 8. The driven wheel 8 side is the front side of the soil improvement machine 1, and the drive wheel 7 side is the rear side of the soil improvement machine 1.

  The main body frame 3 has a support base 10 at substantially the center in the longitudinal direction. An additive hopper 30 is installed on the support base 10. Below the additive hopper 30, a mixing device 11 for stirring and mixing the sand and the additive is installed. A screw feeder 12 and a chute 13 for guiding the additive to the screw feeder 12 are attached to the lower portion of the additive hopper 30. That is, the additive stored in the additive hopper 30 is sent to the mixing device 11 via the chute 13 and the screw feeder 12.

  An earth / sand hopper 16 for receiving earth / sand is provided on one side of the main body frame 3 in the longitudinal direction, that is, in front of the mixing device 11. Below this earth and sand hopper 16, a carry-in conveyor 17 is provided as a conveying means for conveying the earth and sand discharged from the earth and sand hopper 16 to the mixing device 11.

  On the other side in the longitudinal direction of the main body frame 3, that is, behind the support base 10, there is provided a machine room 14 storing a drive unit, that is, an engine and a power unit that includes a hydraulic pump driven by the engine. Yes. The pressure oil discharged from the hydraulic pump of this power unit is supplied to the traveling motor 6 and a hydraulic motor (not shown) that drives the screw feeder 12.

  An operation area 15 is provided between the machine room 14 and the support base 10. In the operation area 15, an operation lever 15a for operating the traveling motor 6 and an operation panel (not shown) for operating other devices are provided.

A discharge conveyor 18 extends from the lower side of the mixing device 11 obliquely upward to the rear. The additive mixed earth and sand composed of the additive and the earth and sand generated by the mixing device 11 is discharged from the mixing device 11 to the discharge conveyor 18 and is conveyed to the rear of the mixing device 11 by the discharge conveyor 18.

  As shown in FIG. 2, a scaffold 100 and a balustrade 101 are provided in front of the additive hopper 30 (obliquely upper right side in FIG. 2). A scaffold 102 and a balustrade 103 are also provided behind the additive hopper 30 (on the diagonally lower left side in the figure). Further, a crane 104 is disposed on the right side of the additive hopper 30.

  As shown in FIG. 3A and FIG. 5A, the additive hopper 30 has an input port 31 (shown in FIG. 5A) for receiving the additive at the upper portion thereof. It can be opened and closed. The lid device 32 includes a frame portion 33 that forms an upper end surface of the additive hopper 30 and is provided with a loading port 31 in the center, and a first lid body 35 and a second lid body that are rotatably supported by the frame portion 33. A lid 34 is provided. Each of the first lid 35 and the second lid 34 is set to a size that partially covers the charging port 31 and covers the entire charging port 31. For example, the first lid 35 is set to cover a substantially half range on the left side of the charging port 31, and the second lid 34 is set to cover a substantially half range on the right side of the charging port 31.

  As shown in FIGS. 4-1 to 5-2, the first lid 35 has a plate-like first cover 35a that is a portion covering the insertion port 31, and a left edge of the first cover 35a. It has a pair of protrusions 35b and 35c protruding leftward from the front and rear ends. Each of the pair of projecting portions 35b and 35c is pin-coupled to each of the second rotation support portions 45A and 45B provided so as to project from the frame portion 33, whereby the first lid 35 is secured to the frame portion 33. Is rotatably supported.

  The second lid 34 includes a plate-like second cover 34a that is a part that covers the insertion port 31, and a pair of arm parts 34b that extend leftward from both front and rear ends of the left edge of the second cover 34a. , 34c. Each of the pair of arm portions 34b and 34c is pin-coupled to each of a pair of second rotation support portions 44A and 44B provided to project from the frame portion 33, whereby the second lid body 34. Is rotatably supported by the frame portion 33.

  The axial direction of the shaft pin in the first rotation support portions 45A and 45B and the axial direction of the shaft pin in the second rotation support portions 44A and 44B are parallel and set in the front-rear direction. Thereby, the rotation direction of the 1st cover body 35 and the rotation direction of the 2nd cover body 34 are the same left-right direction (short direction of the main body frame 3) mutually. As shown in FIG. 6, the first lid body 35 and the second lid body 34 are either the crane 104 side (right side), the scaffold 100 side (front side), or the scaffold 102 side (rear side) of the additive material hopper 30. But it is set to open to the left, that is, the left side. The first rotation support portions 45A and 45B are located on the left side of the insertion port 31, and the second rotation support portions 44A and 44B are formed between the second lid body 34 and the first rotation support portions 45A and 45B in the left-right direction. Located between. The first lid 35 can be opened and closed with the second lid 34 closed.

  As illustrated in FIG. 5B, the lid device 32 includes a first holding mechanism 60 that holds the first lid 35 in a state where the first lid 35 is opened at a predetermined angle. The first holding mechanism 60 includes a rotation pin 61 and a restriction groove 64. One end of the rotation pin 61 is pivotally coupled to a pin support portion 62 provided so as to protrude from the frame portion 33. The rotation of the rotation pin 61 is performed in a plane parallel to the plane on which the rotation path of the first lid 35 is drawn. The other end of the rotation pin 61 is bent forward and is inserted into the restriction groove 64. The regulation groove 64 is a groove having a straight portion 64 a extending linearly along the first lid body 35, and an inclined portion 64 b bent from the straight portion 64 a, and is provided on the rear side of the first lid body 35. An elongated plate-like member 63 extending along the edge and fixed to the edge is formed.

  In the first holding mechanism 60 configured in this way, in the state where the other end of the rotation pin 61 is positioned in the linear portion 64a of the restriction groove 64, the rotation in the opening direction of the first lid 35 is also closed. Rotation is also allowed. On the other hand, in a state where the other end of the rotation pin 61 is positioned in the inclined portion 64b of the restriction groove 64, the relative movement between the other end of the rotation pin 61 and the restriction groove 64 is prevented, thereby the first lid body. The rotation in the opening direction and the rotation in the closing direction are prevented, and as a result, the first lid 35 is held in a state of being opened at a predetermined angle.

  As illustrated in FIG. 5B, the lid device 32 includes a second holding mechanism 50 that holds the second lid 34 in a state where the second lid 34 is opened at a predetermined angle. The second holding mechanism 50 includes a rotation pin 51 and a restriction groove 53. The rotating pin 51 is pin-coupled to the rear arm portion 34c at one end thereof. The rotation of the rotation pin 51 is performed in a plane parallel to the plane on which the rotation trajectory of the rear arm portion 34c is drawn. The other end of the rotation pin 51 is bent forward and is inserted into the restriction groove 53. The restricting groove 53 is a groove having a straight portion 53a that extends linearly in the left-right direction and an inclined portion 53b that is bent downward from the left end of the straight portion 53a, and is provided in the frame portion 33 and extends in the left-right direction. It is formed on the elongated plate-like protrusion 52.

  In the second holding mechanism 50 configured as described above, in the state where the other end of the rotation pin 51 is positioned in the linear portion 53a of the restriction groove 53, the rotation pin 51 moves the other end leftward or rightward. While rotating, the arm portion 34c is allowed to rotate in the direction of opening or closing the second lid 34 by rotating with respect to the arm portion 34c about one end. On the other hand, in the state where the other end of the rotation pin 51 is positioned in the inclined portion 53b of the restriction groove 53, the other end of the rotation pin 51 is prevented from moving leftward from the inclined portion 53b, and the second lid 34 is moved. The rotation of the arm portion 34c in the opening direction is prevented, and the other end of the rotation pin 51 is prevented from moving in the right direction by the inclined portion 53b, and the rotation of the arm portion 34c in the direction of closing the second lid 34 is prevented. Thus, it is possible to hold the second lid 34 opened at a predetermined angle.

  The lid device 32 includes a lock mechanism 70 that locks the first lid 35 and the second lid 34 in a closed state. The lock mechanism 70 includes a shaft rod 72 that extends in the front-rear direction and is inserted into three bearing portions 71 provided on the first lid 35. Both end portions of the shaft rod 72 protrude from both front and rear sides of the first lid body 35, and hooks 73 are fixed to the respective end portions. On the frame portion 33, a locking member 74 on which the hook 73 is hooked from below is screwed to the attachment portion 75. A pivot lever 76 is provided on the shaft rod 72. The rotating lever 76 extends in a direction orthogonal to the axial direction of the shaft rod 72. The rotating lever 76 is positioned along the upper surface of the first lid 35 in a state where the hook 73 is hooked on the locking member 74 and can be bent in the forward direction. The first lid body 35 is provided with a lever lock portion 77 that locks the extended rotation lever 76 and prevents the rotation of the shaft rod 72 by the rotation lever 76. The pivot lever 76 can be detached from the lever lock portion 77 by refraction in the forward direction.

  As shown in FIG. 7, each of the first lid 35 and the second lid 34 has overlapping portions 35 d and 34 d whose ranges covering the insertion port 31 overlap each other. The overlapping portion 34d of the second lid 34 is provided with an elongated protruding portion 34d1 extending along the overlapping portion 34d and protruding upward. The tip of the protrusion 34d1 is bent rightward. The overlapping portion 35d of the first lid 35 forms a hollow portion 35d1 into which the entire protruding portion 34d1 is inserted from below. These overlapping portions 34d and 35d are located across the insertion port 31 as shown in FIGS. A sealing material (not shown) is provided in the hollow portion 35d1.

  A grip 35e is provided on the first lid 35 so as to protrude rightward from each of the front end side and the rear end side of the overlapping portion 35d. The second lid body 34 is provided with gripping portions 34e and 34f that protrude from the front and rear near the right side.

  As shown in FIGS. 3A and 8-1, the second lid 34 has a connection portion 36 for connecting an additive material supply pipe 136 extending from a silo (not shown) to the additive material hopper 30. Is provided. The connecting portion 36 has a receiving port (not shown) that receives the additive from the supply pipe 136 and a lid 36a that closes the receiving port when not in use. At the end of the supply pipe 136, a flange 136a that is screwed around the receiving port is provided. The screw holes and screws provided around the receiving port for screwing the flange 136a are also used for screwing the lid 36a around the receiving port. In FIGS. 3-1 and 8-1, 136b is a screw for screwing the lid 36a or the flange 136a.

  In the frame portion 33, an air vent 80 is provided on the right side of the first lid 35 to release the air (air) in the additive hopper 30 to the outside when the additive is supplied by the silo. The air vent 80 includes an air vent (not shown) and a lid 80a that closes the air vent when not in use. When the air vent 80 is used, an air vent pipe 180 is connected as shown in FIG. A flange 180a screwed around the air vent is provided at the end of the air vent pipe 180 on the additive hopper 30 side. The screw holes and screws provided around the air vent for screwing the flange 180a are also used for screwing the lid 80a around the air vent. In FIGS. 3-1 and 8-1, 180b is a screw for screwing the lid body 80a or the flange 180a.

  In the frame portion 33, the first lid 35 and the first rotation body 45 and the second rotation support portions 44 </ b> A and 44 </ b> B are symmetrical with respect to the left and right directions with respect to the pair of first rotation support portions 45 </ b> A and 45 </ b> B. The pair of first rotation support portions 91A, 91B for replacement and the pair of second rotation support portions for replacement that enable the two lids 34 to be replaced so that the opening and closing directions thereof are reversed. 90A, 90B and are provided. Further, a position corresponding to the pin support portion 62 of the first holding mechanism 60 is provided at a position on the frame portion 33 corresponding to the first lid body 35 and the second lid body 34 that are changed so that the opening and closing directions are reversed. A replacement plate-like protrusion (not shown) in which a replacement restriction groove (not shown) corresponding to the restriction groove 53 of the second holding mechanism 50 is formed is provided. A plate member 95 is fixed to the front edge of the first cover 35 a of the first lid 35, and a restriction groove 96 corresponding to the replacement pin support portion 94 is formed on the plate member 95. ing. Further, the frame portion 33 includes a replacement attachment portion 97 for replacing the locking member 74 of the lock mechanism 70 in the left-right reverse direction, and an air vent portion after the replacement of the first lid body 35 and the second lid body 34. An air vent 98 used instead of 80 is provided.

  According to the soil improvement machine 1 according to the present embodiment, the following effects can be obtained.

  The soil improvement machine 1 includes a first lid 35 and a second lid 34 that are rotatably supported on the upper portion of the additive hopper 30 as lids, and the first lid 35 and the second lid 34 are provided. 34 is set to have a size that partially covers the input port 31 and covers the entire input port 31 with both, so that both the first lid 35 and the second lid 34 are one plate-like member. It can be formed lighter than a conventional lid made of Then, by opening the first lid 35 and the second lid 34 individually, the opening and closing of the lid of the additive hopper is performed with less force than in the conventional case of opening the lid made of one plate-like member. Can be done.

  In the soil improvement machine 1, both the first lid 35 and the second lid 34 are rotated and opened toward the side opposite to the crane 104 side in the short direction of the main body frame 3. The two lids 35 and 34 do not protrude toward the crane 104 side. Thereby, interference with the crane 104 with the 1st cover body 35 and the 2nd cover body 34 of the additive hopper 30 can be prevented.

  In the soil improvement machine 1, the second rotation support portions 44A and 44B that rotatably support the second lid 34 on the frame portion 33 are moved from the second cover portion 34a to the first by the pair of arm portions 34b and 34c. They can be provided apart from the rotation support portions 45A and 45B. Thereby, it is possible to easily set a large opening area of the charging port 31 by the second lid 34.

  In the soil improvement machine 1, the overlapping part 34d of the second lid 34 is provided with a protruding part 34d1 extending along the overlapping part 34d and protruding upward. When the second lid 34 is opened, the protrusion 34d1 can prevent the condensation flowing down the upper surface of the second lid 34 from dropping into the charging port 31.

  In the soil conditioner 1, the scaffolds 100 and 102 are respectively provided in front and rear of the additive hopper 30, and the first lid 35 and the second lid 34 are provided on the scaffold 100 side (right side) of the additive hopper 30. ), The platform 100 side (front side) and the platform 102 side (rear side) are set to open in a direction that is neither the left side nor the left side. Thereby, it is possible not only to prevent the first lid 35 and the second lid 34 from interfering with the crane 104 but also to prevent the operator from operating on the scaffolds 100 and 102.

  In the soil improvement machine 1, the second lid 34 has a connection portion 36 for connecting the supply pipe 136 extending from the silo to the additive hopper 30, and the first lid 35 is the second lid 34. It can be opened and closed with the closed. Thereby, the 1st cover body 35 can be opened with the supply pipe 136 connected to the 2nd cover body 34, and the internal state of an additive hopper can be visually inspected.

  In the soil improvement machine 1, the 1st cover body 35 and the 2nd cover body 34 can be replaced so that an opening-and-closing direction may become reverse direction, as shown in FIG. Thus, when the additive material is supplied from the silo to the additive material hopper 30 via the supply pipe 104 without using the crane 104, the first is determined depending on the arrangement of the silo, the supply pipe 104 being routed from the silo, and the like. The opening / closing direction of the lid body 35 and the second lid body 34 can be selected from two left and right directions.

  In order to ensure that the crane operation is not hindered (does not interfere) with the lid open, either the crane is attached to the outer side of the main body frame in the short direction, or the inlet for the additive hopper is provided on the crane. It is necessary to move away from the opposite side, but these cannot be employed because they increase the size of the soil conditioner in the width direction (short direction of the main body frame). In addition, providing the lid so as to open toward the scaffold provided on the side of the additive hopper in the longitudinal direction of the main body frame cannot be employed because it hinders the opening and closing operation of the lid. Furthermore, in order to eliminate the trouble, it is not possible to provide a scaffold on the side of the additive material hopper in the short direction of the main body frame because the size of the soil conditioner increases in the width direction.

It is a left view of the soil improvement machine which concerns on one Embodiment of this invention. It is a perspective view of the apparatus arrange | positioned at the additive material hopper and its circumference | surroundings. FIG. 3 is an enlarged perspective view of the additive hopper shown in FIG. 2. FIG. 4 is an enlarged rear view of the additive hopper shown in FIG. 3. It is a perspective view of the additive hopper with only the first lid of the first and second lids opened. FIG. 4 is an enlarged rear view of the additive hopper shown in FIG. It is a perspective view of the additive hopper with both the first and second lids opened. FIG. 5 is an enlarged rear view of the additive hopper shown in FIG. 5-1. It is a perspective view of an additive hopper with both the first and second lids opened, and a scaffold and a crane disposed around the additive hopper. It is an enlarged view corresponding to the VII-VII section which simplifies and shows the duplication part of the 1st and 2nd lid. It is a perspective view of the additive material hopper with which the front-end | tip part of the silo connection pipe and the air bleeding pipe were connected. It is a perspective view in the state where the 1st lid of the additive hopper shown in FIG. 8 was opened. It is a perspective view of an additive hopper in which the opening and closing directions of the first and second lids are reversed and the scaffolds and cranes arranged around the additive hopper.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Soil improvement machine 2 Traveling body 3 Main body frame 4 Traveling device 5 Track frame 6 Traveling motor 7 Driving wheel 8 Driven wheel 9 Crawler belt 10 Support stand 11 Mixing device 12 Screw feeder 13 Chute 14 Machine room 15 Operation area 15a Operation lever 16 Sediment hopper 17 carry-in conveyor 18 discharge conveyor 30 additive material hopper 31 loading port 32 lid device 33 substrate 34 second lid 34a second cover 34b, 34c arm 34d overlap 34d1 projecting 34e, 34f grip 35 first lid 35a First cover portion 35b, 35c Projection portion 35d Overlapping portion 35d1 Hollow portion 35e Grasping portion 36 Connection portion 36a Lid 44A, 44B Second rotation support portion 45A, 45B First rotation support portion 50 Second holding mechanism 51 Rotation Pin 52 Plate-like projection 53 Restriction groove 53a Linear portion 53b Inclined portion 60 First holding mechanism 61 Moving pin 62 Pin support portion 63 Plate-like member 64 Restriction groove 64a Linear portion 64b Inclined portion 70 Lock mechanism 71 Bearing portion 72 Axle rod 73 Hook 74 Locking member 75 Mounting portion 76 Rotating lever 77 Lever lock portion 80 Air vent 80a Lid
90A, 90B Replacement second rotation support portion 91A, 91B Replacement first rotation support portion 92 Replacement plate-like protrusion 95 Replacement plate-like member 96 Replacement restriction groove 97 Replacement mounting portion 98 Air vent part 100 Scaffold 101 Railing 102 Scaffold 103 Railing 104 Crane 136 Supply pipe 136a Flange 136b Screw 180 Air vent pipe 180a Flange 180b Screw

Claims (3)

Body frame,
An earth and sand hopper provided on one side in the longitudinal direction of the main body frame and receiving earth and sand;
A conveying means that is provided in the main body frame and is located below the earth and sand hopper, and conveys the earth and sand discharged from the earth and sand hopper;
A power unit provided on the other side in the longitudinal direction of the main body frame and provided with a drive source;
An additive hopper provided at the approximate center in the longitudinal direction of the main body frame, and having an additive inlet at the top;
The additive material which is provided on one side in the short direction of the main body frame and which is located between the power unit and the additive material hopper in the longitudinal direction of the main body frame, A crane that can be
A mixing device that is provided below the additive hopper in the main body frame and mixes the earth and sand supplied from the conveying means and the additive supplied from the additive hopper;
In the soil improvement machine provided with a discharge conveyor for discharging the improved soil generated by the mixing device,
The additive hopper is
There are first and second lids for covering the inlet, and the first and second lids are respectively set to a size that partially covers the inlet and covers the entire inlet. ,
Both the first and second lids are supported on the upper portion of the additive hopper so as to rotate and open toward the other side of the body frame in the short direction. The additive hopper has a frame portion forming the charging port at an upper portion thereof,
The first lid has a first cover that covers substantially half of the other side of the insertion port in the lateral direction of the main body frame when the first lid is closed;
A first rotation support portion is provided on the other side of the frame portion in the short direction of the main body frame to support the first cover portion so as to rotate and open to the other side in the short direction of the main body frame. And
The second lid includes a second cover that covers substantially half of one side of the insertion port in a short direction of the main body frame in a state in which the second cover is closed, and the main body from the second cover A pair of arms extending toward the other side of the frame in the short direction,
On the other side of the body frame in the short direction of the main body frame, the arm portion is rotatably supported so that the second cover portion pivots and opens to the other side of the main body frame in the short direction. A second pivot support is provided;
The second rotation support part is disposed at a position between the second cover part in a state where the second lid is closed and the first rotation support part in a short direction of the main body frame. The soil improvement machine according to claim 1. The first lid is provided so that it can be opened and closed with the second lid closed.
The soil improvement machine according to claim 1 or 2, wherein the second cover part of the second lid is provided with a connection part to which a supply pipe extending from the silo can be connected.

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