JP2018039618A - Soil-gathering device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the degree of freedom of design of a rounding path for a loading member capable of being loaded with sediment.SOLUTION: A soil-gathering device includes: a loading member 15 capable of being loaded with sediment; a connection member 14 that is rotatably connected to the loading member 15 and that annularly connects the plurality of loading members 15 together; rounding means 11a, 11b, 11c and 12 for going around the plurality of annularly-connected loading members 15; and angle adjusting means 17 and 24 capable of adjusting an angle of the loading member 15 with respect to the connection member 14.SELECTED DRAWING: Figure 2A

Description

  The present invention relates to a earthing device that unloads earth and sand generated in construction of a tunnel and the like.

  In the construction of a tunnel, a tunnel is formed by excavating a natural ground with a tunnel excavator or the like, and the excavated earth and sand (excavated earth and sand) is discharged from the tunnel. The excavated earth and sand are discharged in a substantially horizontal direction by a belt conveyor installed in the tunnel and in a substantially vertical direction by a earthing device installed in a vertical shaft. An example of the earthing device used for construction of such a tunnel is disclosed in Patent Document 1.

JP 2003-13467 A

  In the technology described in Patent Document 1, a chain conveyor is constituted by a number of connected conveyor chains and a plate lifter fixed on the chain at a predetermined interval, and the periphery of the chain conveyor is surrounded by a casing, whereby a plate lifter is formed. The earth and sand are held in the space divided by the casing and conveyed upward.

  However, in this technology, the plate lifter is fixed to the chain, and the angle of the plate lifter with respect to the chain is always constant. There is a risk of inviting.

  The present invention has been made in view of the above problems, and an object of the present invention is to improve the degree of freedom in designing a circulation path of a placing member on which earth and sand can be placed.

  The earthing device according to the first invention for solving the above-mentioned problems is a mounting member on which earth and sand can be mounted, a connection that is rotatably connected to the mounting member, and connects a plurality of the mounting members in an annular shape. It is characterized by comprising a member, a circulating means for circulating a plurality of the above-mentioned mounting members connected in an annular shape, and an angle adjusting means capable of adjusting the angle of the above-mentioned mounting member with respect to the connecting member.

  The earthing device according to a second invention for solving the above-mentioned problems is the earthing device according to the first invention, wherein the angle adjusting means includes a plurality of roller members fixed to the placing member, and the plurality of the plurality of roller members. It is provided with the control member which contact | abuts a roller member and controls rotation of the said mounting member with respect to the said connection member.

  The earthing device according to a third aspect of the present invention that solves the above-described problem is the earthing device according to the second aspect of the invention, wherein the regulating member abuts so as to sandwich the plurality of roller members, and the connecting member It is characterized by restricting the rotation of the mounting member to the one side in the circumferential direction.

  The earthing device according to a fourth invention for solving the above-mentioned problems is the earthing device according to the third invention, comprising rotating means for rotating the placing member to the other side in the circumferential direction with respect to the connecting member. It is characterized by that.

  The earthing device according to a fifth invention for solving the above-mentioned problems is the earthing device according to the fourth invention, wherein the rotating means is fixed to the gear member fixed to the mounting member and the structure. A geared member that meshes with the gear member is provided.

  The earthing device according to a sixth invention for solving the above-mentioned problems is the earthing device according to any one of the first to fifth inventions, wherein the housing encloses the plurality of mounting members connected in an annular shape, A first opening that is formed in the housing and takes in the earth and sand so as to fall from the earth and sand transport device onto the mounting member, and is formed in the housing and is located on the lower side in the vertical direction than the first opening. It has the 2nd opening part and the conveying apparatus which conveys earth and sand to the said earth and sand conveying apparatus from said 2nd opening part, It is characterized by the above-mentioned.

  According to the earthing device concerning the 1st invention, the design freedom of the circumference path of the circumference path of the mounting member which can place earth and sand can be improved.

  According to the earthing apparatus which concerns on 2nd invention, the angle of the mounting member with respect to a connection member can be adjusted with a simple structure.

  According to the earthing apparatus which concerns on 3rd invention, the angle of the mounting member with respect to a connection member can be adjusted with a simple structure.

  According to the earthing device according to the fourth aspect of the present invention, it is possible to further improve the degree of freedom in designing the circulation path of the mounting member.

  According to the earthing apparatus which concerns on 5th invention, the angle of the mounting member with respect to a connection member can be adjusted with a simple structure.

  According to the earthing apparatus according to the sixth aspect of the invention, it is possible to take measures when earth and sand fall from the placing member.

It is explanatory drawing which shows construction | assembly of the tunnel using the earthing apparatus which concerns on Example 1. FIG. It is explanatory drawing (the A section enlarged view in FIG. 1) which shows the structure of the earthing apparatus which concerns on Example 1. FIG. It is explanatory drawing (the B section enlarged view in FIG. 1) which shows the structure of the earthing apparatus which concerns on Example 1. FIG. It is explanatory drawing which shows the structure of the bucket in the earth lifting apparatus which concerns on Example 1. FIG. It is explanatory drawing which shows the structure of the bucket in the earth lifting apparatus which concerns on Example 1. FIG. It is explanatory drawing which shows the structure of the bucket in the earth lifting apparatus which concerns on Example 1. FIG. It is explanatory drawing (IV arrow line view in FIG. 3A) which shows the structure of the bucket in the earthing apparatus which concerns on Example 1. FIG. It is explanatory drawing (V arrow line view in FIG. 3A) which shows the structure of the bucket in the earthing apparatus which concerns on Example 1. FIG. It is explanatory drawing which shows operation | movement of the bucket in the earth lifting apparatus which concerns on Example 1. FIG. It is explanatory drawing which shows construction of the tunnel using the earthing apparatus which concerns on Example 2. FIG. It is explanatory drawing (the A section enlarged view in FIG. 7) which shows the structure of the earthing apparatus which concerns on Example 2. FIG. It is explanatory drawing (the B section enlarged view in FIG. 7) which shows the structure of the earthing apparatus which concerns on Example 2. FIG.

  Hereinafter, embodiments of the earthing device according to the present invention will be described in detail with reference to the accompanying drawings. Needless to say, the present invention is not limited to the following examples, and various modifications can be made without departing from the spirit of the present invention.

Example 1
The structure of the earthing device according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6.

As shown in FIG. 1, earth and sand excavated by a tunnel boring machine 1 (excavation sand), in the backward (FIG. 1 tunnel T ₁ by a belt conveyor 2 which is installed in the tunnel T _1, the right side ), Conveyed upward (in FIG. 1 by the upper side) by the earthing device 4 installed in the shaft T ₂ , and conveyed to a predetermined place by the belt conveyor 5 installed on the ground. Yes.

  As shown in FIGS. 2A and 2B, the earthing device 4 is provided with a housing 10 that is an outer shell thereof, and a plurality of (three in the present embodiment) sprockets are provided in the housing 10. 11a, 11b, and 11c are rotatably supported. Here, the sprocket 11 a arranged on one end side (the upper left side in FIG. 2A) of the earthing device 4 is mechanically connected to the drive motor 12 and is rotationally driven by the drive motor 12. It is like that. In addition, the sprocket 11c arranged on the other end side (the lower side in FIG. 2B) of the earthing device 4 is mechanically connected to the hydraulic jack 13, and the hydraulic jack 13 is expanded and contracted in one direction ( In FIG. 2B, it is moved in the vertical direction.

  The housing 10 accommodates a large number of buckets 15 that are connected in a ring shape by a chain 14 and are spanned across the three sprockets 11a, 11b, and 11c. As shown in FIGS. 3A, 4, and 5, the bucket 15 is provided with a bucket body 21 on which excavated earth and sand can be placed. Here, the bucket body 21 includes a box-shaped box plate 21a on which excavated earth and sand are placed, and a rear side of the box plate 21a (the right side in FIG. 3A, the upper side in FIG. 4, the paper surface in FIG. A support plate 21b that supports the back side, a triangular reinforcing plate 21c that reinforces the bottom side of the box plate 21a (the lower side in FIGS. 3A and 5 and the back side in FIG. 4), and the support plate 21b. Are substantially composed of side plates 21d having substantially L-shapes provided on both sides (the front-rear direction in FIG. 3A and the left-right direction in FIGS. 4 and 5).

  Here, in FIG. 4 and FIG. 5, the configuration of only one side in the width direction (right side in FIG. 4 and FIG. 5) is illustrated. And the structure mentioned above in the bucket 15 and the structure mentioned later are symmetrical in the width direction both sides, and the structure of the width direction other side (in FIG. 4 and FIG. 5 left side) not shown in the bucket 15 It is the same thing.

  Further, the bucket 15 is provided with a connecting pin 22 that protrudes from the side plate 21d of the bucket body 21 toward the outside in the width direction (the front side in FIG. 3A and the right side in FIGS. 4 and 5). . A chain plate 14 a constituting the chain 14 is rotatably connected to the connecting pin 22. That is, the bucket 15 (bucket body 21) is not fixed to the chain 14 and can rotate with respect to the chain 14.

  The bucket 15 is provided with a guide pin 23 that protrudes further outward in the width direction from the tip of the connecting pin 22. Here, the connecting pin 22 and the guide pin 23 may be formed integrally or may be formed after being formed separately.

  The guide pin 23 engages with a groove formed on the outer periphery of the sprockets 11a, 11b, and 11c (see FIGS. 2A and 2B). Therefore, the driving force of the drive motor 12 is transmitted to the guide pin 23, that is, the bucket 15 via the sprocket 11 a, and is transmitted from the guide pin 23, that is, the bucket 15 to the other bucket 15 via the chain 14. That is, when the sprocket 11 a is rotationally driven by the drive motor 12, a large number of buckets 15 connected by the chain 14 are circulated in the housing 10.

Further, as shown in FIG. 2A, the earthing device 4 is provided with a chain guide 16 that is positioned on a predetermined portion (first curved path R ₂ described later) in the circulation path of the bucket 15 and fixed to the housing 10. ing. A guide pin 23 of a bucket 15 traveling on the predetermined portion (first curved path R ₂ described later) is in contact with the chain guide 16 (see FIG. 4). That is, the bucket 15 and the chain 14 travel while being guided by the chain guide 16, and can be circulated without drooping by adjusting the position of the sprocket 11 c by the hydraulic jack 13.

The circulation path of the bucket 15 includes a first vertical path R ₁ that travels toward one side in a substantially vertical direction (the upper side in FIGS. 2A and 2B), and one side in a substantially horizontal direction from the first vertical path R ₁ ( In FIG. 2A, a first curved path R ₂ that travels curved toward the left side), a first horizontal path R ₃ that travels from the first curved path R ₂ toward one side in a substantially horizontal direction, A first folding path R ₄ that travels in a curved manner so as to be folded back from the first horizontal path R ₃ toward the other side in the substantially horizontal direction (right side in FIG. 2A), and substantially horizontal from the first folding path R _4. A second horizontal path R ₅ that travels toward the other side in the direction, and a second curved path R that travels while curving from the second horizontal path R ₅ toward the other side in the substantially vertical direction (the lower side in FIG. 2A). ₆ and the second vertical path R traveling from the second curved path R ₆ toward the other side in the substantially vertical direction. ₇ and a second folding path R ₈ that travels in a curved manner so as to be folded back from the second vertical path R ₇ toward the one side in the substantially vertical direction (connected to the first vertical path R ₁ ).

Here, the first curved path R ₂ is curved toward the outside of the circulation path, and is formed by being guided by the chain guide 16. The first folding path R ₄ , the second bending path R ₆ , and the second folding path R ₈ are curved toward the inside of the circulation path, and are formed by being guided by the sprockets 11a, 11b, and 11c, respectively. Has been.

  As shown in FIGS. 3A, 4, and 5, the bucket 15 is provided with a guide roller 24 that protrudes inward in the width direction from the side plate 21 d of the bucket body 21 and can rotate. Two guide rollers 24 are arranged on both sides in the width direction, and are positioned between the U-shaped guide rails 17 fixed to the housing 10 and the end portions of the guide rails 17 (rail portions 17a). It comes to contact.

  In this way, the two guide rollers 24 abut on the guide rail 17 (rail portion 17a) so as to be sandwiched between the rail portions 17a of the guide rail 17, thereby rotating the bucket 15 to one side (in FIG. 3A). Is counterclockwise and the posture of the bucket 15 (bucket body 21) (angle with respect to the chain 14) is determined.

  For example, as shown in FIG. 3A, when the distance between the rail portions 17 a is a predetermined value D, the bucket 15 travels in a posture (angle) orthogonal to the chain 14. 3B, when the distance between the rail portions 17a is set to a value D1 (> D) larger than the predetermined value D, the bucket 15 is inclined to one side with respect to the chain 14 (in FIG. 3B). 3), when the distance between the rail portions 17a is set to a value D2 (<D) smaller than a predetermined value D, as shown in FIG. 3C. The bucket 15 travels while being inclined to the other side with respect to the chain 14 (in FIG. 3C, the connecting pin 22 is rotated to the right by the angle θ2 around the rotation center).

  The bucket 15 is only restricted from rotating to one side in the circumferential direction (left rotation in FIGS. 3A, 3B, and 3C) by the contact between the guide roller 24 and the guide rail 17. The rotation to the other side in the circumferential direction (right rotation in FIGS. 3A, 3B, and 3C) is not restricted (it is possible).

Further, as shown in FIGS. 3A, 4 and 5, the bucket 15 is provided with a pinion gear 25 fixed to the inner side in the width direction of the side plate 21d of the bucket body 21, and as shown in FIG. The earth device 4 is provided with a rack gear 18 that is positioned in the vicinity of the sprocket 11a (the first return path R ₄ in FIG. 2A) and is fixed to the housing 10.

The pinion gear 25 meshes with the rack gear 18 when the bucket 15 travels on the first return path R ₄ . At this time, the pinion gear 25 i.e. the bucket 15, the first folded path R ₄ travels while rotating relative to the rack gear 18, in the rotation (FIG. 6 to be folded toward the front of the traveling direction, centered on the pinion gear 25 As right). That is, the bucket 15 is rotated to the other side that is not restricted by the contact between the guide roller 24 and the guide rail 17 due to the meshing of the pinion gear 25 and the rack gear 18.

As shown in FIG. 2B, the housing 10 near the first vertical path R ₁ is provided with a shooter 10a that opens obliquely upward. Opening of the chute 10a is located in the vertically lower side of the rear end portion of the belt conveyor 3 that is installed in the tunnel T ₁ (end portion in the rear side of the tunnel T _1), the lower end of the chute 10a is It is located in the vicinity of the bucket 15 to travel a first vertical path R _1. Therefore, the excavated earth and sand conveyed by the belt conveyor 3 falls from the rear end portion of the belt conveyor 3 to the lower side in the vertical direction, enters the shooter 10a (inside the housing 10), and is on the bucket 15 that circulates in the housing 10. It is supposed to be placed.

As shown in FIG. 2A, in the vicinity of the first curved path in the housing 10 R ₂ and the first horizontal path R _3, opening 10b is provided. The opening 10b is located on the upper side in the vertical direction of the front end portion (the right side end portion in FIG. 2A) of the belt conveyor 5 installed on the ground. Therefore, the excavated earth and sand placed on the bucket 15 falls from the bucket 15 onto the belt conveyor 5 when the bucket 15 travels along the first curved path R ₂ and the first horizontal path R ₃ (placement). To be).

In other words, the bucket 15 receives the excavated earth and sand from the belt conveyor 3 through the chute 10a in the first vertical path R _1, the belt conveyor 5 through the opening portion 10b in the first curved path R ₂ and the first horizontal path R ₃ It is designed to deliver excavated soil.

Further, as shown in FIG. 2B, the vertical direction lower side of the chute 10a and a lower end vicinity of the housing 10, an opening 10c is provided to open in the direction of the belt conveyor 3 (the front of the tunnel T ₁₎ The screw conveyor 19 is inserted through the opening 10c. One end (the lower end in FIG. 2B) of the screw conveyor 19 is positioned at the lower end in the housing 10 through the opening 10c, and the other end of the screw conveyor 19 (the upper end in FIG. 2B). The end) is located on the belt conveyor 3. Therefore, the excavated earth and sand that has not been unloaded by the bucket 15 and has fallen into the housing 10 from the bucket 15 is returned to the belt conveyor 3 by the screw conveyor 19.

  The operation of the earthing device according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6.

The excavated earth and sand discharged from the tunnel excavator 1 is conveyed to the rear of the tunnel T ₁ by the belt conveyors 2 and 3 and then falls from the rear end of the belt conveyor 3 to the shooter 10a of the earthing device 4 (FIG. 1). And see FIG. 2A).

In the earth lifting device 4, the sprocket 11a is rotationally driven by the drive motor 12, and the bucket 15 and the chain 14 spanned between the sprocket 11a and the other sprockets 11b and 11c circulate (FIG. 2A). And see FIG. 2B). Chute 10a from Agetsuchi device 4 excavated soil taken into the (housing 10) is (are placed) falls onto the bucket 15 to travel the chute 10a near the first vertical path R _1.

Here, the first vertical path R _1, and a predetermined width of the guide rail 17 is installed (see Fig. 3C Figures 3A), the bucket 15 to travel the first vertical path R _1, compared Chain 14 The vehicle travels at a predetermined angle (an angle suitable for unloading, which is substantially a right angle in FIGS. 2A and 2B).

Then, the bucket 15 digging earth and sand is placed in a first vertical path R ₁ travels, the transition from the first vertical path R ₁ to the first horizontal path R ₃ via a first curved path R _2. At this time, the bucket 15 travels with the tip of the bucket body 21 inclined so that the tip of the bucket body 21 is lowered downward in the vertical direction, so that the excavated earth and sand placed on the bucket 15 falls from the bucket 15 onto the belt conveyor 5. To do.

Here, the first curved path R ₂ and the first horizontal path R _3, (see FIG. 3C from Fig. 3A) a predetermined width of the guide rail 17 is installed, the first curved path R ₂ and the first horizontal bucket 15 traveling the route R ₃ is (an angle that is suitable for dumping, a substantially right angle in FIG. 2A) a predetermined angle with respect to the chain 14 traveling at.

Then, the bucket 15 which has finished the discharge soil, travels a first horizontal path R _3, the transition from the first horizontal path R ₃ to the second horizontal path R ₅ through the first folding path R _4. At this time, the pinion gear 25 meshes with the rack gear 18, and the pinion gear 25 rotates as the bucket 15 travels, so the bucket 15 rotates to be folded forward in the traveling direction (see FIG. 6).

Then, the bucket 15 moves from the second horizontal path R ₅ to the second vertical path R ₇ through the second curved path R ₆ , and further from the second vertical path R ₇ to the second folding path R _8. Return to the first vertical path R ₁ . The excavated earth and sand are again placed on the bucket 15 returned to the first vertical path R ₁ from the belt conveyor 3 via the shooter 10a (see FIG. 2B).

Here, a guide rail 17 having a predetermined width is installed in the second return path R ₈ and the first vertical path R ₁ (see FIGS. 3A to 3C), and the second return path R ₈ and the first vertical path R 1. The bucket 15 traveling on R ₁ is traveling at a predetermined angle with respect to the chain 14 (an angle suitable for the above-described earthing).

Incidentally, when it is placed from the belt conveyor 3 onto the bucket 15 through the chute 10a, or are Agetsuchi is placed on the bucket 15 (the bucket 15 is traveling on a first vertical path R ₁ The excavated earth and sand that has fallen from the bucket 15 falls to the lower end of the housing 10 and is then returned onto the belt conveyor 3 by the screw conveyor 19. That is, it falls again into the chute 10 a from the belt conveyor 3 and is placed on the bucket 15.

According to the earthing device according to the present embodiment, the angle (posture) of the bucket 15 with respect to the chain 14 can be easily adjusted (set). Thus, the bucket 15, the excavating earth and sand from the belt conveyor 3 through the chute 10a in the first vertical path R ₁ receive efficiently, the belt through the opening 10b in the first curved path R ₂ and the first horizontal path R ₃ The excavated earth and sand can be efficiently delivered to the conveyor 5. Further, in the second horizontal path R ₅ , the second curved path R ₆ and the second vertical path R ₇ , the bucket 15 is caused to travel along the chain 14, and the housing 10 is provided close to the chain 14. Thereby, the enlargement of the earthing apparatus 4 can be suppressed.

(Example 2)
The structure of the earthing device according to the second embodiment of the present invention will be described with reference to FIGS. 7, 8A and 8B.

  The earthing device according to the present embodiment has the same structure as the earthing device according to the first embodiment of the present invention, except that the earthing is performed at an angle inclined from the vertical direction. Therefore, the duplicate description about the same structure as Example 1 in the earthing apparatus which concerns on a present Example is abbreviate | omitted suitably.

As shown in FIG. 7, sediment excavated by a tunnel boring machine 101 (excavation sand), in the backward (FIG. 1 tunnel T ₁ by a belt conveyor 102, 103 installed in the tunnel T _1, the right side ), Transported upward (in FIG. 1) by the earthing device 104 installed in the shaft T ₂ , and transported to a predetermined location by the belt conveyor 105 installed on the ground. Yes.

  As shown in FIGS. 8A and 8B, in the earthing device 104, when the sprocket 111a is rotationally driven by the drive motor 112, the sprocket 111a is connected in a ring shape by the chain 114 and extends over the three sprockets 111a, 111b, and 111c. A large number of the buckets 115 are circulated in the housing 110.

The circumferential path of the bucket 115 is a first inclined path R ₁ that travels toward one side inclined in the vertical direction (the upper right side in FIGS. 8A and 8B), and a substantially horizontal direction from the first inclined path R _1. A first curved path R ₂ that curves toward one side (right side in FIG. 8A) and a first horizontal path R that travels from the first curved path R ₂ toward one side in a substantially horizontal direction. ₃ , a first folding path R ₄ that travels in a curved manner so as to be folded back from the first horizontal path R ₃ toward the other side in the substantially horizontal direction (left side in FIG. 8A), and a first folding path R ₄ a second horizontal path R ₅ traveling toward the substantially horizontal direction other side (in FIG. 8A and 8B, the lower left side) the other side which is inclined from the vertical direction from the second horizontal path R ₅ towards curved from a second curved path R ₆ which to travel, vertically from the second curved path R ₆ Et inclined with a second inclination path R ₇ traveling toward the other side, bending to travel to wrap toward the second inclined path one side inclined from R ₇ from the vertical direction (first inclined path R ₁ And a second return path R ₈ .

Note that in Agetsuchi device 104, a bucket 115 and the chain 114, with which travels guided by a chain guide 116 provided on the first curved path R _2, by the position of the sprocket 111c is adjusted by a hydraulic jack 113 , You can go around without hanging down.

Further, when the bucket 115 travels along the first return path R ₄ in the earthing device 104, a pinion gear (not shown) provided in the bucket 115 and the vicinity of the sprocket 111a (in FIG. 8A, the first return) located in the path R ₄₎ adapted to the rack gear 118 which is fixed to the housing 110 engages. The engagement of the pinion gear (not shown) and the rack gear 118 causes the bucket 115 to travel along the first return path R ₄ while the pinion gear (not shown) rotates with respect to the rack gear 118. The excavated earth and sand placed on the bucket 115 falls onto the belt conveyor 105 by rotating so as to be folded toward the right (in FIG. 8A, rotating right).

  The operation of the earthing device according to the second embodiment of the present invention will be described with reference to FIGS. 7, 8A and 8B.

The excavated earth and sand discharged from the tunnel excavator 101 is transported to the rear of the tunnel T ₁ by the belt conveyors 102 and 103 and then falls from the rear end of the belt conveyor 103 to the shooter 110a of the earthing device 104 (FIG. 7). reference).

In the earth lifting device 104, the sprocket 111a is rotationally driven by the drive motor 112, and the bucket 115 and the chain 114 spanned between the sprocket 111a and the other sprockets 111b and 111c circulate (FIG. 8A). And FIG. 8B). Chute 110a from Agetsuchi device 104 excavated soil incorporated into (housing 110) is (are placed) falls onto the bucket 115 traveling the chute 110a vicinity of the first inclined path R _1.

Here, the first inclined path R _1, a predetermined width of the guide rail (not shown) is installed, the bucket 115 traveling the first inclined path R ₁ is a predetermined angle (fried respect Chain 114 Traveling at an angle suitable for the soil).

Then, the bucket 115 which excavated earth and sand is placed in the first inclined path R ₁ travels, the transition from the first inclined path R ₁ to the first horizontal path R ₃ via a first curved path R _2. At this time, since the bucket 115 travels so as not to be inclined as a whole by changing the angle with respect to the chain 114, the excavated earth and sand placed on the bucket 115 does not fall from the bucket 115.

Here, the first curved path R ₂ and the first horizontal path R _3, a predetermined width of the guide rail (not shown) is installed, running the first curved path R ₂ and the first horizontal path R ₃ The bucket 115 to be moved is traveling at a different angle with respect to the chain 114 (so as to have an angle suitable for conveyance).

Then, the bucket 115 which excavated earth and sand is placed is traveling on the first horizontal path R _3, the transition from the first horizontal path R ₃ to the second horizontal path R ₅ through the first folding path R _4. At this time, the pinion gear (not shown) meshes with the rack gear 118, and the pinion gear (not shown) rotates as the bucket 115 travels. Therefore, the bucket 115 rotates (suitable for soil removal) so that it is folded forward in the traveling direction. Rotate at the rotation speed). That is, since the bucket 115 travels with an inclination so that its base end portion is lowered downward in the vertical direction, the excavated earth and sand placed on the bucket 115 falls onto the belt conveyor 105 from the bucket 115.

Then, the bucket 115 that has completed the earth removal moves from the second horizontal path R ₅ to the second inclined path R ₇ via the second curved path R ₆ , and further from the second inclined path R ₇ to the second folded path. Return to the first inclined path R ₁ via R ₈ . Excavated earth and sand are again placed on the bucket 115 returned to the first inclined path R ₁ from the belt conveyor 103 via the shooter 110a (see FIG. 8B).

Here, the second folded path R ₈ and first inclined path R _1, a predetermined width of the guide rail (not shown) is installed, it runs the second folded path R ₈ and first inclined path R ₁ The bucket 115 is traveling at a predetermined angle with respect to the chain 114 (an angle suitable for the above-described pumping).

Incidentally, when it is placed through the chute 110a from the belt conveyor 103 on the bucket 115, or are Agetsuchi is placed on the bucket 115 (the bucket 115 traveling on a first inclined path R ₁ The excavated earth and sand that has fallen from the bucket 115 falls to the lower end of the housing 110 and is then returned onto the belt conveyor 103 by the screw conveyor 119. That is, it falls again into the chute 110 a from the belt conveyor 103 and is placed on the bucket 115.

According to the earthing device according to the present embodiment, the angle (posture) of the bucket 115 with respect to the chain 114 can be easily adjusted (set). Therefore, the excavated earth and sand can be transported without dropping from the bucket 115 in the first curved path R ₂ and the first horizontal path R ₃ . Further, the bucket 115 is caused to travel close to the chain 114 in the circuit path, and the housing 110 is provided close to the chain 114, so that the size of the earthing device 104 can be suppressed.

  The earthing device according to the present invention is not limited to the one used in the construction of a tunnel using a tunnel excavator as in the first and second embodiments, and transports the earth and sand upward in various constructions (landing) ) Can also be employed.

1 Tunnel excavator 2 Belt conveyor (sediment transport device)
3 Belt conveyor (sediment conveyor)
4 Unloading device 5 Belt conveyor (sediment transport device)
10 Housing 10a Shutter (first opening)
10b opening 10c opening (second opening)
11a Sprocket (turning means)
11b Sprocket (turning means)
11c Sprocket (turning means)
12 Drive motor (turning means)
13 Hydraulic jack 14 Chain (connection member)
14a Chain plate (connection member)
15 bucket (mounting member)
16 Chain guide (turning means)
17 Guide rail (angle adjustment means, regulating member)
17a Rail part (angle adjusting means, regulating member)
18 Rack gear (rotating means, geared member)
19 Screw conveyor (conveying device)
21 Bucket body (mounting member)
21a Bucket box box 21b Bucket support plate 21c Bucket reinforcement plate 21d Bucket side plate 22 Connecting pin 23 Guide pin (turning means)
24 Guide roller (angle adjusting means, roller member)
25 Pinion gear (rotating means, gear member)
101 tunnel excavator 102 belt conveyor (sediment transport device)
103 Belt conveyor (sediment conveyor)
104 Earth lifting device 105 Belt conveyor
110 Housing 110a Shuter (first opening)
110b opening 110c opening (second opening)
111a Sprocket (turning means)
111b Sprocket (turning means)
111c sprocket (turning means)
112 Drive motor (turning means)
113 Hydraulic jack 114 Chain (connection member)
115 bucket (mounting member)
116 Chain guide (turning means)
118 Rack gear (rotating means, geared member)
119 Screw conveyor (conveying device)
R ₁ first vertical path (first inclined path)
R ₂ first curved path R ₃ first horizontal path R ₄ first folded path R ₅ second horizontal path R ₆ second curved path R ₇ second vertical path (second inclined path)
R ₈ second turnback route T ₁ tunnel T ₂ shaft

Claims (6)

A mounting member capable of mounting earth and sand;
A connecting member that is rotatably connected to the mounting member and connects the plurality of mounting members in a ring shape;
A circulating means for circulating a plurality of the mounting members connected in a ring shape;
An earthing device comprising: angle adjusting means capable of adjusting an angle of the mounting member with respect to the connecting member. The angle adjusting means includes a plurality of roller members fixed to the mounting member, and a regulating member that contacts the plurality of roller members and restricts rotation of the mounting member with respect to the connecting member. The earthing device according to claim 1, wherein: The restriction member is abutting so as to sandwich the plurality of roller members, and restricts the rotation of the placement member relative to the connection member toward one side in the circumferential direction. The earthing device according to. The earthing device according to claim 3, further comprising a rotating unit that rotates the placing member to the other circumferential side with respect to the connecting member. 5. The lifting device according to claim 4, wherein the rotating means includes a gear member fixed to the mounting member and a geared member fixed to a structure and meshing with the gear member. Earth equipment. A housing enclosing a plurality of the mounting members connected in an annular shape;
A first opening that is formed in the housing and takes in the earth and sand so as to fall from the earth and sand transport device to the mounting member;
A second opening formed in the housing and positioned vertically below the first opening;
The earthing device according to any one of claims 1 to 5, further comprising: a conveying device that conveys earth and sand from the second opening to the earth and sand conveying device.

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