JP2017210806A - Tunnel ventilation equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide tunnel ventilation equipment that enables whole equipment to be easily transferred.SOLUTION: Ventilation equipment Z1 has a transfer rail 2 that moves forward and backward in a tunnel T. An expansion pipe 1 is suspended on the transfer rail 2 and a fixed pipe 3 is disposed on a rear end side of the expansion pipe 1. The transfer rail 2 is fixed to the fixed pipe 3 and connected to a transfer cradle 8, which moves forward and backward in the tunnel T, through a buffer mechanism X1. The buffer mechanism X1 has a buffer function in a front-back direction and a direction perpendicular to the front-back direction. When the transfer cradle 8 moves forward and backward, the transfer rail 2 also moves forward and backward, and the fixed pipe 3 and the expansion pipe 1 also move forward and backward.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a tunnel ventilation facility.

  As a tunnel ventilation facility, there is a facility for sucking in harmful substances such as dust and gas near the face through an expansion tube (duct) (for example, see Patent Document 1). An example of this ventilation facility is shown in FIG.

  In this ventilation facility 100, a plurality of suspension tools 109 are suspended from the wall surface T <b> 1 of the tunnel T. The hanging tool 109 may be directly attached to the wall surface (for example, segment) T1 of the tunnel T as shown in the illustrated example, or may be indirectly attached via a guide rail or the like. However, in any case, the hanging tool 109 can be easily detached from the wall surface T1 of the tunnel T and can be easily attached to the wall surface T1 of the tunnel T.

  Moreover, the hanging tool 109 is located in a line from the wellhead T3 side of the tunnel T to the face T2 side at an interval of 2.0 to 2.5 m, for example. Furthermore, the hanging tool 109 is provided with a pulley 109A. The pulley 109A is a member provided for suspending and sliding the moving rail 102. The moving rail 102 is suspended from the wall surface T1 of the tunnel T by being suspended on the plurality of pulleys 109A. The movable rail 102 itself suspends the telescopic tube 101 in a state where it can be expanded and contracted.

  The telescopic tube 101 is connected to the dust collector 107 via the drive tube 103 and the auxiliary tube 104. The dust collector 107 is installed on the movable gantry 108. The mobile gantry 108 moves to the face T2 side (front) or to the wellhead T3 side (rear) by self-propelling or being pulled by another traveling means.

  In the ventilation equipment 100 described above, the moving rail 102 can be slid and moved to the face T2 side alone. This sliding movement is performed using a rotating body 105 provided at the upper end of the drive tube 103. The rotating body 105 contacts the lower surface of the moving rail 102 and rotates in this contact state. The rotating body 105 is made of, for example, a tire.

  A contact member 106 is attached to the drive tube 103. The contact member 106 includes a rod 106A that extends rearward (from the wellhead T3 side) from the upper surface of the rear end portion of the drive tube 103, and a vertical member 106B that extends downward from the rear end portion of the rod 106A. Due to the presence of the contact member 106, the distance between the drive tube 103 and the dust collector 107 does not become a predetermined length or less. Therefore, when the rotating body 105 rotates, a reaction force is applied to the dust collector 107, and the moving rail 102 slides alone to the face T2 side by the frictional resistance between the rotating body 105 and the moving rail 102.

  The contact member 106 presses against the dust collector 107 when moving the moving rail 102 to the face T2 side. Therefore, the contact member 106 may be called a push rod etc., for example. Further, the moving speed of the moving rail 2 has been about 5 m / min in the past, but has recently increased to about 26 m / min.

  In the ventilation equipment 100 described above, the telescopic tube 101 can be easily moved to the face T2 side by sliding the moving rail 102 to the face T2 side. As a result, the entire ventilation facility 100 can be moved (moved) smoothly and quickly to the face T2 side. The procedure for moving the entire ventilation facility 100 to the face T2 side is generally as follows.

  First, when the face T2 moves forward, for example, about 5 to 50 m, the hanging tool 109 is attached to the wall surface T1 of the newly formed tunnel T. Next, the rotating body 105 is rotated, and the moving rail 102 is slid to the face T2 side. This sliding movement is performed so that the moving rail 102 passes (slides) on the pulley 109A of the newly attached lifting tool 109.

  On the other hand, the auxiliary pipe 104, the control cable (not shown), and the like are disconnected (cut) from the dust collector 107. Then, in this cut state, the movable frame 108 is moved to the face T2 side. By this movement, the dust collector 107 hits the support member 106, and the drive tube 103 moves to the face T2 side. The telescopic tube 101 and the auxiliary tube 104 connected to the drive tube 103 also move to the face T2 side.

  In this way, all members constituting the ventilation facility 100 are moved to the face T2 side. Finally, the auxiliary pipe 104 and the control cable are reconnected to the dust collector 107. Thereby, the relocation of the entire ventilation facility 100 is completed.

  In addition, as a ventilation installation, the form (linked form) in which the drive tube 103 and the moving rail 102 are in a fixed relationship can be considered. In this interlocking mode, the moving rail 102 does not slide alone but moves with other members. That is, in this interlocking mode, the movement of the moving rail 102 is interlocked with the movement of the moving frame 108.

  However, according to this interlocking mode, the moving rail 102 does not pass over the pulley 109A of the lifting tool 109 (deviation (runaway) of the moving rail 102), and may possibly fall. The deviation of the moving rail 102 is caused by, for example, a sudden start or a sudden stop of the moving stand 108, fluctuations in the moving speed, undulation of the tunnel T, vibration of the moving stand 108, etc. It is caused by being transmitted to.

  Therefore, as the present inventors know, the ventilation equipment 100 described above is used, and the movement of the moving base 108 and the sliding movement of the moving rail 102 are performed separately (not linked). Therefore, the moving rail 102 hardly deviates.

  However, the moving rail 102 may deviate very rarely. For example, when the tunnel T has a downward slope, the moving rail 102 tends to deviate. This is because, when the tunnel T has a downward slope, the moving rail 102 may run away (surplus) when the moving rail 102 is slid using the rotating body 105.

  Of course, before the moving rail 102 falls, the moving rail 102 can be moved back to the face T2 side (sliding) by returning the moving rail 102 to the wellhead T3 side and repeating the sliding movement. However, repeating the sliding movement of the moving rail 102 is cumbersome. Moreover, this work must be performed with care so that the moving rail 102 does not fall. In short, it is dangerous.

  Further, according to the ventilation facility 100, it is necessary to disconnect the auxiliary pipe 104 and the control cable from the dust collector 107 and reconnect each time they are moved. Therefore, also in this respect, the relocation of the ventilation facility 100 becomes troublesome. The relocation time will be longer accordingly. In addition, since the control cable is disconnected and reconnected, a failure may occur in the electric system after the relocation.

JP 2003-301699 A

  SUMMARY OF THE INVENTION The main problem to be solved by the present invention is to provide a tunnel ventilation facility that can easily transfer the entire facility.

Means for solving the above problems are as follows.
(Aspect of Claim 1)
There is a moving rail that moves back and forth in the tunnel,
A telescopic tube is suspended on this moving rail,
A fixed tube is provided on the rear end of this telescopic tube.
The moving rail is in a fixed relationship with the fixed pipe, and in a connecting relationship with a moving gantry that moves back and forth in the tunnel through a buffer mechanism,
The buffer mechanism has a buffer function in at least the front-rear direction and the direction orthogonal thereto,
When the movable frame moves back and forth, the moving rail also moves back and forth, and the fixed tube and the telescopic tube also move back and forth.
Tunnel ventilation equipment characterized by that.

(Aspect of Claim 2)
Several pulleys hang from the tunnel wall,
The plurality of pulleys can be removed from the wall surface of the tunnel and arranged in the front-rear direction.
The moving rail is suspended from the plurality of pulleys;
The tunnel ventilation equipment according to claim 1.

(Aspect according to claim 3)
A telescopic rod is provided as the buffer mechanism,
The telescopic rod is composed of two or more types of telescopic members having different properties, and one end is connected to the movable frame, and the other end is coupled to the moving rail.
Both of the connection relations consist of a combination of an inner member, a pair of outer members sandwiching the inner member, and a shaft member penetrating the inner member and the outer member,
With this combination, the telescopic rod rotates in the left-right direction in one of the connection relationships, and the telescopic rod rotates in the vertical direction in the other of the connection relationships.
The tunnel ventilation equipment according to claim 1 or 2.

(Aspect according to claim 4)
As the elastic member, at least a gas spring and an elongated body are provided.
The tunnel ventilation equipment according to claim 3.

(Aspect according to claim 5)
As the buffer mechanism, a vertical member in a fixed relationship with any one of the moving gantry and the moving rail, and a cross member in a fixed relationship with the other,
The longitudinal member and the transverse member are assembled with a string member so that the transverse member moves in the longitudinal direction with respect to the longitudinal member and so that the longitudinal member moves in the transverse direction with respect to the transverse member. Being
The tunnel ventilation equipment according to claim 1 or 2.

(Aspect of claim 6)
The cross member is bridged between a pair of auxiliary members extending upward from the movable frame,
The longitudinal member extends downward from the moving rail,
The tunnel ventilation equipment according to claim 5.

  According to the present invention, it becomes a tunnel ventilation facility that can easily transfer the entire facility.

It is a side view of the ventilation equipment of the 1st form. It is a front view of the ventilation equipment of the 1st form. It is an enlarged view of the buffer mechanism part of FIG. An extendable rod (1) and a contracted rod (2). Plan view (1) and side view (2) of an example of attachment of the escape prevention wire, plan view (3) and side view (4) of the movable frame side connecting portion (one end) of the telescopic rod, and movement of the telescopic rod It is the top view (5) and side view (6) of a rail side connection part (other end part). It is a side view of the ventilation equipment of the 2nd form. It is a front view of the ventilation equipment of the 2nd form. It is an enlarged view of the buffer mechanism part of FIG. It is a side view of the conventional ventilation equipment.

Next, modes for carrying out the invention will be described. In addition, this form is an example of this invention and this invention is not limited to this form.
(First form)
As shown in FIGS. 1 and 2, the ventilation equipment Z1 of the present embodiment includes the telescopic tube 1, the moving rail 2, the fixed tube 3, the tip tube 3A, the auxiliary tube 4, the buffer mechanism X1, the dust collector 7, the moving frame 8, And a hanging tool 9 are mainly provided.

  The hanging tool 9 is suspended from the wall surface T1 of the tunnel T. The hanger 9 may be directly attached to the wall surface (for example, segment) T1 of the tunnel T as in the illustrated example, or may be indirectly attached via a guide rail or the like (not shown).

  However, in any case, it is preferable that the hanging tool 9 is designed so that it can be easily detached from the wall surface T1 of the tunnel T and can be easily attached to the wall surface T1 of the tunnel T. If the lifting tool 9 is designed so that it can be easily attached to the wall surface T1 of the tunnel T, it is easy to attach the lifting tool 9 to the newly formed wall surface T1 of the tunnel T when the ventilation equipment Z1 is moved. Become. As a result, the relocation work of the ventilation facility Z1 can be performed quickly. On the other hand, when the lifting tool 9 is designed so that it can be easily detached from the wall surface T1 of the tunnel T, it becomes easy to remove the lifting tool 9 from the wall surface T1 of the tunnel T when the ventilation equipment Z1 is moved. As a result, also in this respect, the relocation work of the ventilation facility Z1 can be performed quickly.

  The lifting tool 9 is preferably 2 m from the tunnel T3 side of the tunnel T to the face T2 side (or from the face T2 side to the wellhead T3 side), for example, at an interval (hanging pitch) of 1.5 to 2.5 m. They are lined up at intervals. If this interval is too long, the possibility that the movable rail 2 will fail to slide increases. On the other hand, if this interval is too short, the relocation of the ventilation facility 10 becomes cumbersome. In addition, the moving rail 2 has a length of 80 to 100 m, for example.

  As shown in an enlarged manner in FIGS. 2 and 3, the lifting device 9 includes one or a plurality of pulleys 9 </ b> A in the illustrated example. The pulley 9A is provided for suspending the moving rail 2 and smoothing the sliding movement of the moving rail 2. The movable rail 2 is suspended from the wall surface T1 of the tunnel T by being suspended on the plurality of pulleys 9A. The moving rail 2 slides in the tunnel T forward (face T2 side) and backward (wellhead T3 side) in accordance with the rotation of the pulley 9A.

  Various methods for suspending the moving rail 2 by the pulley 9A and for enabling the sliding movement can be considered. In this embodiment, first, I-shaped steel (or H-shaped steel) having an upper flange 2A is used as the moving rail 2. Further, the pulley 9A is in contact with the lower surface of the upper flange 2A and is configured to rotate in this contact state. Therefore, the moving rail 2 is suspended by the upper flange 2A being hooked on the pulley 9A. Further, the moving rail 2 smoothly slides as the pulley 9A rotates.

  As the hanging tool 9 provided with the existing pulley 9A, for example, a trolley or the like can be used. Moreover, in order to be able to remove the hanging tool 9 easily from the wall surface T1 of the tunnel T and to attach it easily to the wall surface T1 of the tunnel T, for example, a lever block (registered trademark) is used. Can do.

  The moving rail 2 suspends the telescopic tube 1, the fixed tube 3, and the tip tube 3A. The fixed tube 3 is connected to the rear end (end of the wellhead T3 side) of the telescopic tube 1. The distal end tube 3A is connected to the distal end portion (the end portion on the face T2 side) of the telescopic tube 1. The fixed tube 3, the telescopic tube 1, and the tip tube 3A are arranged in this order, and are in a communication state in which air passes through the inner space. These tubes 1, 3 and 3A have a circular or square cross section, preferably a circular shape. Moreover, the diameter of these pipes 1, 3, 3A is, for example, 1.5 m.

  The telescopic tube 1 expands and contracts in the front-rear direction (the direction from the wellhead T3 to the face T2 or the direction from the face T2 to the wellhead T3) (expandable duct). The telescopic tube 1 usually has flexibility. The telescopic tube 1 has, for example, a maximum length of 80 to 100 m and a minimum length of 15 to 25 m.

  On the other hand, the fixed tube 3 and the tip tube 3A do not expand and contract in the front-rear direction. The fixed tube 3 and the tip tube 3A are usually made of hard tubes. The fixed tube 3 and the tip tube 3A have a length of 1.5 to 2.0 m, for example.

  The fixed tube 3 may be provided not on the rear end portion of the telescopic tube 1 but on the rear end portion side of the telescopic tube 1, that is, in the middle of the telescopic tube 1. Further, another hard tube may be provided (intervened) in the middle of the telescopic tube 1.

  The fixed tube 3 and the tip tube 3 </ b> A are directly suspended from the moving rail 2. In particular, the tip tube 3A is suspended so as to be movable back and forth. On the other hand, the telescopic tube 1 is not directly suspended from the moving rail 2. The telescopic tube 1 is indirectly suspended from the moving rail 2 via a fixed tube 3 and a tip tube 3A. Therefore, the telescopic tube 1 expands and contracts in the front-rear direction according to the front-rear movement of the distal end tube 3A.

  The tip tube 3A can be moved back and forth using the rotating body 5 provided at the upper end of the tip tube 3A. The rotating body 5 abuts on the lower surface of the moving rail 2 and rotates in this abutting state. By this rotation, the tip tube 3A moves back and forth due to frictional resistance between the peripheral surface of the rotating body 5 and the lower surface of the moving rail 2.

  The fixed tube 3 is connected to a dust collector, an exhaust fan, and in this embodiment, a dust collector 7 through an auxiliary tube 4. The auxiliary pipe 4 is made of, for example, a flexible duct. In addition, the dust collector 7 is installed on the loading platform of the movable platform 8. The mobile gantry 8 moves to the face T2 side (front) or to the wellhead T3 side (rear) by self-propelling or being pulled by another traveling means.

  The mobile gantry 8 in the illustrated example is a self-propelled truck. As the movable base 8, a so-called sled (see FIG. 6) towed by other traveling means can be used. However, when the movable mount 8 is a track or the like, that is, a mount that is partially in contact with the floor surface (roadbed) of the tunnel T (in the case of a truck, the tire is in contact), it is in full contact with the floor surface of the tunnel T. Compared with the case of a gantry (for example, a sled), the vertical vibration received from the floor of the tunnel T is greatly and suddenly increased. Therefore, when the movable gantry 8 is a truck or the like, it is preferable to use the present embodiment (first embodiment) in which the buffering performance of the buffer mechanism X1 is larger than the second embodiment described later.

  The fixed pipe 3 is a member (device) having a relationship corresponding to the drive pipe 103 in the conventional ventilation facility 100. However, the fixed tube 3 is in a fixed relationship with the moving rail 2, unlike the drive tube 103. Further, as shown in FIG. 3, the moving rail 2 is connected to the moving frame 8 via the buffer mechanism X1. Therefore, when the moving gantry 8 moves back and forth, the moving rail 2 also moves back and forth. Further, when the moving rail 2 moves back and forth, the fixed tube 3 that is fixed to the moving rail 2 and the telescopic tube 1 connected to the fixed tube 3 also move back and forth.

  The moving rail 2 can also be directly connected to the moving gantry 8. However, in this embodiment, they are indirectly connected via the dust collector 7.

  The buffer mechanism X1 has a buffer function in at least the front-rear direction and the direction orthogonal thereto. This buffering function makes it difficult for the discontinuity of movement (swaying) of the movable mount 8 to be transmitted to the movable rail 2. Accordingly, it is difficult for the moving rail 2 to deviate.

  In this regard, when it comes to the idea of adopting the buffer mechanism X1, it seems natural that the buffer mechanism is adopted to prevent the shaking from being transmitted from the movable frame 8 to the movable rail 2. However, since the conventional ventilation equipment 100 can usually move the ventilation equipment without any problem, the idea of adopting a buffer mechanism has been triggered. The present inventors came up with the idea and continued to search for a more reliable relocation method, especially when the tunnel T is downwardly inclined (the absolute number of downwardly inclined tunnels is small). In other words, we continued to search for a more reliable relocation method.

  Various methods for expressing the buffer function are conceivable. However, from the viewpoint of mitigating shaking associated with the movement of the mobile gantry 8 that moves in the tunnel T, the following configuration is preferable. This will be specifically described below.

  As shown in FIG. 3, the buffer mechanism X <b> 1 of the present embodiment is provided with an extendable rod 10. The telescopic rod 10 constitutes two or more types of telescopic members having different properties. In this embodiment, as the expansion and contraction member, as shown in FIG. 4, a gas spring 12 and a flat wire spring 11 as a splaying body are provided. By providing two or more types of stretchable members having different properties, it is difficult for the shaking from the movable mount 8 to be transmitted to the movable rail 2. Specifically, for the following reason.

  First, there are various causes of the shaking transmitted from the moving gantry 8 to the moving rail 2, such as start and stop of the moving gantry 8, speed change, undulation of the tunnel T, vibration of the movable gantry 8 itself, and the like. The shaking accompanying the start and stop of the mobile gantry 8 is large and steep, and the shaking accompanying the undulation of the tunnel T is large but gentle (of course, it may be sudden). Further, the shaking caused by the vibration of the movable mount 8 is small and weak. However, if there are two or more types of stretchable members having different properties (physical properties) such as stretch length and stretch force, all shaking can be absorbed appropriately. For example, an expansion / contraction member having a large expansion / contraction length is suitable for absorbing a large shaking. An elastic member having a small expansion / contraction length is suitable for absorbing small shaking. A stretchable member having a strong stretching force is suitable for absorbing a sudden strong shaking. A stretchable member having a weak stretch force is suitable for absorbing a gentle weak shaking.

  In this embodiment, as described above, the gas spring 12 and the flat wire spring 11 are provided as two or more types of elastic members having different properties. Hereinafter, the mechanism by which the buffer function is expressed by the gas spring 12 and the flat wire spring 11 will be described.

  First, the telescopic rod 10 includes a rod body composed of an inner rod 10X, an intermediate rod 10Y, and an outer rod 10Z as a constituent element. The outer rod 10Z has a hollow shape with an end portion on the middle rod 10Y side (in this embodiment, an end portion on the movable frame 8 side) opened. Through the opening, the outer rod 10Z side end portion (in this embodiment, the moving rail 2 side end portion) of the middle rod 10Y is inserted into the outer rod 10Z and pulled out from the outer rod 10Z. By this insertion / extraction, the length of the rod body constituted by the middle rod 10Y and the outer rod 10Z expands and contracts.

  Similarly, the inner rod 10Y has an open end on the inner rod 10X side (in this embodiment, the end on the movable frame 8 side) and is hollow. Through the opening, the end of the inner rod 10X on the middle rod 10Y side (in this embodiment, the end on the moving rail 2 side) is inserted into the middle rod 10Y and pulled out from the middle rod 10Y. By this insertion / extraction, the length of the rod body constituted by the inner rod 10X and the middle rod 10Y expands and contracts.

  The gas spring 12 is a telescopic member having a buffer function by gas pressure or the like. This gas spring 12 is located on both sides of the rod body. One end 12a of the gas spring 12 is attached to the middle rod 10Y. The other end 12b of the gas spring 12 is attached to the outer rod 10Z. Therefore, when the rod body constituted by the middle rod 10Y and the outer rod 10Z expands and contracts by inserting / removing the middle rod 10Y with respect to the outer rod 10Z, the buffering function of the gas spring 12 appears.

  The flat wire spring 11 is housed in the middle rod 10Y. In addition, the inner rod 10X is inserted into the flat wire spring 11 from the movable frame 8 side (the one end portion 11a side). One end portion 11a of the flat wire spring 11 is fixed to the inner rod 10X side end portion of the middle rod 10Y. The other end portion 11b of the flat wire spring 11 is fixed to the end portion on the middle rod 10Y side of the inner rod 10X. Therefore, when the rod body constituted by the inner rod 10X and the middle rod 10Y expands and contracts by inserting / removing the inner rod 10X with respect to the middle rod 10Y, the buffer function of the flat wire spring 11 is exhibited.

  In the above embodiment, the gas spring 12 contracts when the rod body constituted by the intermediate rod 10Y and the outer rod 10Z contracts (state (2) in FIG. 4). On the other hand, the gas spring 12 extends when the rod main body constituted by the intermediate rod 10Y and the outer rod 10Z extends (state (1) in FIG. 4).

  On the other hand, when the rod body constituted by the inner rod 10X and the middle rod 10Y contracts, the flat wire spring 11 extends (state (1) in FIG. 4). On the other hand, when the rod body constituted by the inner rod 10X and the middle rod 10Y extends, the flat wire spring 11 contracts.

  Therefore, when a sudden impact is applied to the rod body (extensible rod 10) and the rod body composed of the middle rod 10Y and the outer rod 10Z contracts (when the state changes from (1) to (2) in FIG. 4). ), First, the rapid contraction of the rod body is alleviated by the gas spring 12. Further, during this contraction, the rod body constituted by the inner rod 10X and the middle rod 10Y extends. This expansion also relieves rapid contraction of the rod body. Further, the extension of the rod body constituted by the inner rod 10 </ b> X and the middle rod 10 </ b> Y is relaxed by the flat wire spring 11. Therefore, the rapid contraction of the rod main body is relieved also in this respect. It should be noted that the rapid expansion and contraction prevention of the rod body leads to prevention of the deviation of the moving rail 2.

  The expansion / contraction length of the rod body can be adjusted by adjusting the expansion / contraction length of the gas spring 12 and the expansion / contraction length of the flat wire spring 11. Similarly, the stretching force of the rod body can be adjusted by adjusting the stretching force of the gas spring 12 and the stretching force of the flat wire spring 11.

  Specifically, the expansion / contraction length L1 (see FIG. 4) of the gas spring 12 is preferably 300 mm or less, and more preferably 300 mm. On the other hand, the expansion / contraction length of the flat wire spring 11 is preferably 200 to 400 mm, and more preferably 400 mm.

  On the other hand, the spring thrust of the gas spring 12 is preferably 2200 N or less on the contraction side and 1400 N or less on the expansion side, more preferably 2178 N on the contraction side and 1372 N on the expansion side. On the other hand, the spring thrust of the flat wire spring 11 is preferably 2300 N or less on the contraction side and 2300 N or less on the expansion side, more preferably 2260 N on the contraction side and 2260 N on the expansion side.

  The inventors have a gas spring (maximum length 850 mm, minimum length 550 mm, expansion / contraction length 300 mm, spring thrust (contraction side) 2178N, spring thrust (extension side) 1372N), and flat wire spring (maximum length 400 mm, minimum length 200 mm). The test was performed by sliding the moving rail using a 200 mm extension / contraction length, a spring thrust (contraction side) 2260N, and a spring thrust (extension side) 2260N). In this test, there was no deviation of the moving rail, and the slide could move smoothly.

  In this embodiment, one gas spring 12 and one flat wire spring 11 are provided (one gas spring 12 is a pair). However, a form in which two or more gas springs 12 having different properties are provided, a form in which two or more striated bodies (11) having different properties are provided, a form in which these are combined, and the like can also be adopted. What is used as the expansion / contraction member, how many are provided, and the like may be appropriately designed according to the nature of the movable frame 8, the undulations of the tunnel T, and the like.

  In this embodiment, the gas spring 12 is provided at the center of the rod main body (expandable rod 10), and the flat wire spring 11 is provided at the end of the rod main body (expandable rod 10) on the moving frame 8 side. However, for example, a form in which the flat wire spring 11 is provided at the end of the rod body on the side of the moving rail 2, a form in which both ends are provided, and a form in which the gas spring 12 is provided at one or both ends of the rod body are also adopted. be able to. Regarding the arrangement of such stretchable members, it is preferable to design appropriately according to the properties of the movable mount 8 and the undulations of the tunnel T.

  However, it is preferable to arrange the flat wire spring 11 at the end of the movable frame 8 as in this embodiment. According to this embodiment, it is possible to more reliably prevent the fine vibration generated by the moving gantry 8 itself from being absorbed by the flat wire spring 11 and transmitted to the moving rail 2.

  The telescopic rod 10 has one end portion 10a connected to the movable frame 8 (first connection relationship). This first connection relationship may be direct. However, in this embodiment, as shown in FIG. 3, the one end portion 10 a of the telescopic rod 10 and the movable mount 8 are indirectly connected via the dust collector 7 and the auxiliary member 13 extending upward from the upper surface of the rear end portion of the dust collector 7. Are connected.

  The telescopic rod 10 has the other end portion 10b connected to the moving rail 2 (second connection relationship). This second connection relationship may be direct. However, in this embodiment, there is an indirect connection relationship via the auxiliary member 14 provided on the lower surface of the rear end portion of the moving rail 2.

  Both the first connection relationship and the second connection relationship include an inner member C1, a pair of outer members C2 sandwiching the inner member C1, and these inner portions, as shown in FIGS. It consists of the combination of the shaft member C3 which penetrates the material C1 and the outer member C2. In the first connection relationship, the shaft member C3 extends in the vertical (up and down) direction. On the other hand, in the second connection relationship, the shaft member C3 extends in the lateral (left-right) direction. In this form, in one form of connection relation, in this form, in the first connection relation, as shown in (3) of FIG. 5, the rod body (extensible rod 10) rotates in the left-right (lateral) direction. Further, in the second connection relationship in the present embodiment, in the second connection relationship, as shown in FIG. 5 (6), the rod body (extensible rod 10) rotates in the vertical (vertical) direction. Therefore, even when the traveling platform 8 (or the dust collector 7) and the moving rail 2 are relatively displaced in the vertical direction or the horizontal direction during the movement (transfer), the deviation can be absorbed. Of course, it is possible to cope with the positional deviation existing from this place.

  According to the above telescopic rod 10 (buffer mechanism X1), the deviation of the moving rail 2 can be reliably prevented. Therefore, there is no possibility that the moving rail 2 falls. However, in this embodiment, as shown in (1) and (2) of FIG. 5, the risk of dropping is more reliably prevented by providing the escape prevention wire 15.

  As shown in FIGS. 5 (3) and 5 (4), one end portion of the escape prevention wire 15 (in this embodiment, the end portion on the movable frame 8 side) is attached to the rear end surface of the auxiliary member 13. It is hooked on a hanging member 15A such as a shackle.

  As in this embodiment, the hanging member 15A is positioned near one end 10a of the telescopic rod 10 in the lateral (left and right) direction and above the one end 10a of the telescopic rod 10 in the vertical (vertical) direction. It is preferable.

  On the other hand, the other end portion of the escape prevention wire 15 (in this embodiment, the end portion on the moving rail 2 side) is hooked on a hooking member 15B such as a shackle attached to the lower surface of the moving rail 2.

  A plurality of hanging members 15B are attached to the lower surface of the moving rail 2 at appropriate intervals in the front-rear direction. The other end of the escape preventing wire 15 can be hooked on one of the hanging members 15B depending on the situation. In this embodiment, the other end portion of the escape prevention wire 15 is hooked on the hanging member 15B closest to the movable frame 8 side.

(Second form)
Next, the ventilation facility Z2 of the second form will be described with reference to FIGS. The ventilation facility Z2 is mainly characterized in that the ventilation facility Z1 of the first embodiment is different from the buffer mechanism X2. Therefore, the following description will focus on the buffer mechanism X2.

  As shown in FIGS. 6 and 7, in the ventilation facility Z <b> 2 of the present embodiment, the movable gantry 8 is composed of a “sleigh” pulled by other traveling means. The sled (moving base 8) and the moving rail 2 are connected via a buffer mechanism X2.

  As shown in FIG. 8, the buffer mechanism X <b> 2 includes a vertical member 21 that is in a fixed relationship with the moving rail 2. The vertical member 21 is fixed to the lower surface of the moving rail 2 so as to extend downward from the lower surface of the moving rail 2. The vertical member 21 is reinforced by a reinforcing member 21A. One end of the reinforcing member 21 </ b> A is fixed to the lower end of the longitudinal member 21. On the other hand, the other end of the reinforcing member 21 </ b> A is fixed to the lower surface of the moving rail 2. The fixing position of the reinforcing member 21A is on the front side (face T2 side) than the fixing position of the vertical member 21.

  The buffer mechanism X2 further includes a cross member 22 that is in a fixed relationship with the movable frame 8. This fixed relationship may be direct. However, in the present embodiment, the buffer mechanism X2 and the movable frame 8 are in an indirect fixed relationship via the dust collector 7.

  As shown in FIG. 7, the cross member 22 is bridged between a pair of auxiliary members 23. The pair of auxiliary members 23 extend upward from the suction base 7A of the dust collector 7 as shown in FIG. If necessary, the auxiliary material 23 can be extended upward in combination with another member 23A as shown in the illustrated example.

  The vertical member 21 and the horizontal member 22 are assembled by the string member 20 being hung around a portion where both intersect. Therefore, when the moving rail 2 and the moving gantry 8 are moved, both 21 and 22 are not separated. However, the assembling of both 21 and 22 is such that the cross member 22 can move in the vertical (up and down) direction with respect to the vertical member 21 and the vertical member 21 in the horizontal (left and right) direction with respect to the cross member 22. It is done to be movable. That is, the assembling by the string material 20 of both 21 and 22 is performed slightly loosely. By such assembly, the buffer function of the buffer mechanism X2 is expressed. Since the buffer mechanism X2 is formed only by assembling the members, it is economical, and there is almost no possibility of failure or the like.

  However, the buffer mechanism X2 of the second form has a weaker buffer function than the buffer mechanism X1 of the first form. Therefore, when the shaking from the moving gantry 8 to the moving rail 2 is large, for example, when the moving gantry 8 is a truck or the like, it is preferable to employ the buffer mechanism X1 of the first embodiment. On the other hand, when the shaking from the moving frame 8 to the moving rail 2 is small, for example, when the moving frame 8 is a warp or the like, it is preferable to employ the buffer mechanism X2 of the second form. From this point of view, the second buffer mechanism X2 is employed in the present embodiment (second embodiment) in which the movable gantry 8 is a sled.

  The present invention can be used as a tunnel ventilation facility.

DESCRIPTION OF SYMBOLS 1 Telescopic pipe 2 Moving rail 3 Fixed pipe 3A Tip pipe 4 Auxiliary pipe 5 Rotating body 7 Dust collector 7A Suction port 8 Moving mount 9 Lifting tool 9A Pulley 10 Telescopic rod 10X Inner rod 10Y Middle rod 10Z Outer rod 11 Rectangular spring 12 Gas spring DESCRIPTION OF SYMBOLS 13,14 Auxiliary member 15 Escape prevention wire 15A, 15B Hanging member 20 String material 21 Vertical material 21A Reinforcement material 22 Horizontal material 23 Auxiliary material 23A Other member 100 Conventional ventilation equipment 101 Telescopic pipe 102 Moving rail 103 Drive pipe 104 Auxiliary Pipe 105 Rotating body 106 Contact member 106A Rod 106B Vertical material 107 Dust collector 108 Moving base 109 Lifting tool 109A Pulley T Tunnel T1 Wall surface T2 Face T3 Wellhead X1 First form of buffer mechanism (torsion bar system)
X2 Second type buffer mechanism (crossbar system)
Z1 Ventilation equipment of the first form Z2 Ventilation equipment of the second form

  The present invention relates to a tunnel ventilation facility.

  As a tunnel ventilation facility, there is a facility for sucking in harmful substances such as dust and gas near the face through an expansion tube (duct) (for example, see Patent Document 1). An example of this ventilation facility is shown in FIG.

  In this ventilation facility 100, a plurality of suspension tools 109 are suspended from the wall surface T <b> 1 of the tunnel T. The hanging tool 109 may be directly attached to the wall surface (for example, segment) T1 of the tunnel T as shown in the illustrated example, or may be indirectly attached via a guide rail or the like. However, in any case, the hanging tool 109 can be easily detached from the wall surface T1 of the tunnel T and can be easily attached to the wall surface T1 of the tunnel T.

  Moreover, the hanging tool 109 is located in a line from the wellhead T3 side of the tunnel T to the face T2 side at an interval of 2.0 to 2.5 m, for example. Furthermore, the hanging tool 109 is provided with a pulley 109A. The pulley 109A is a member provided for suspending and sliding the moving rail 102. The moving rail 102 is suspended from the wall surface T1 of the tunnel T by being suspended on the plurality of pulleys 109A. The movable rail 102 itself suspends the telescopic tube 101 in a state where it can be expanded and contracted.

  The telescopic tube 101 is connected to the dust collector 107 via the drive tube 103 and the auxiliary tube 104. The dust collector 107 is installed on the movable gantry 108. The mobile gantry 108 moves to the face T2 side (front) or to the wellhead T3 side (rear) by self-propelling or being pulled by another traveling means.

  In the ventilation equipment 100 described above, the moving rail 102 can be slid and moved to the face T2 side alone. This sliding movement is performed using a rotating body 105 provided at the upper end of the drive tube 103. The rotating body 105 contacts the lower surface of the moving rail 102 and rotates in this contact state. The rotating body 105 is made of, for example, a tire.

  A contact member 106 is attached to the drive tube 103. The contact member 106 includes a rod 106A that extends rearward (from the wellhead T3 side) from the upper surface of the rear end portion of the drive tube 103, and a vertical member 106B that extends downward from the rear end portion of the rod 106A. Due to the presence of the contact member 106, the distance between the drive tube 103 and the dust collector 107 does not become a predetermined length or less. Therefore, when the rotating body 105 rotates, a reaction force is applied to the dust collector 107, and the moving rail 102 slides alone to the face T2 side by the frictional resistance between the rotating body 105 and the moving rail 102.

  The contact member 106 presses against the dust collector 107 when moving the moving rail 102 to the face T2 side. Therefore, the contact member 106 may be called a push rod etc., for example. Further, the moving speed of the moving rail 2 has been about 5 m / min in the past, but has recently increased to about 26 m / min.

  In the ventilation equipment 100 described above, the telescopic tube 101 can be easily moved to the face T2 side by sliding the moving rail 102 to the face T2 side. As a result, the entire ventilation facility 100 can be moved (moved) smoothly and quickly to the face T2 side. The procedure for moving the entire ventilation facility 100 to the face T2 side is generally as follows.

  First, when the face T2 moves forward, for example, about 5 to 50 m, the hanging tool 109 is attached to the wall surface T1 of the newly formed tunnel T. Next, the rotating body 105 is rotated, and the moving rail 102 is slid to the face T2 side. This sliding movement is performed so that the moving rail 102 passes (slides) on the pulley 109A of the newly attached lifting tool 109.

  On the other hand, the auxiliary pipe 104, the control cable (not shown), and the like are disconnected (cut) from the dust collector 107. Then, in this cut state, the movable frame 108 is moved to the face T2 side. By this movement, the dust collector 107 hits the support member 106, and the drive tube 103 moves to the face T2 side. The telescopic tube 101 and the auxiliary tube 104 connected to the drive tube 103 also move to the face T2 side.

  In this way, all members constituting the ventilation facility 100 are moved to the face T2 side. Finally, the auxiliary pipe 104 and the control cable are reconnected to the dust collector 107. Thereby, the relocation of the entire ventilation facility 100 is completed.

  In addition, as a ventilation installation, the form (linked form) in which the drive tube 103 and the moving rail 102 are in a fixed relationship can be considered. In this interlocking mode, the moving rail 102 does not slide alone but moves with other members. That is, in this interlocking mode, the movement of the moving rail 102 is interlocked with the movement of the moving frame 108.

  However, according to this interlocking mode, the moving rail 102 does not pass over the pulley 109A of the lifting tool 109 (deviation (runaway) of the moving rail 102), and may possibly fall. The deviation of the moving rail 102 is caused by, for example, a sudden start or a sudden stop of the moving stand 108, fluctuations in the moving speed, undulation of the tunnel T, vibration of the moving stand 108, etc. It is caused by being transmitted to.

  Therefore, as the present inventors know, the ventilation equipment 100 described above is used, and the movement of the moving base 108 and the sliding movement of the moving rail 102 are performed separately (not linked). Therefore, the moving rail 102 hardly deviates.

  However, the moving rail 102 may deviate very rarely. For example, when the tunnel T has a downward slope, the moving rail 102 tends to deviate. This is because, when the tunnel T has a downward slope, the moving rail 102 may run away (surplus) when the moving rail 102 is slid using the rotating body 105.

  Of course, before the moving rail 102 falls, the moving rail 102 can be moved back to the face T2 side (sliding) by returning the moving rail 102 to the wellhead T3 side and repeating the sliding movement. However, repeating the sliding movement of the moving rail 102 is cumbersome. Moreover, this work must be performed with care so that the moving rail 102 does not fall. In short, it is dangerous.

  Further, according to the ventilation facility 100, it is necessary to disconnect the auxiliary pipe 104 and the control cable from the dust collector 107 and reconnect each time they are moved. Therefore, also in this respect, the relocation of the ventilation facility 100 becomes troublesome. The relocation time will be longer accordingly. In addition, since the control cable is disconnected and reconnected, a failure may occur in the electric system after the relocation.

JP 2003-301699 A

  SUMMARY OF THE INVENTION The main problem to be solved by the present invention is to provide a tunnel ventilation facility that can easily transfer the entire facility.

  Means for solving the above problems are as follows.

(Aspect according to claim 5 )
Several pulleys hang from the tunnel wall,
The plurality of pulleys can be removed from the wall surface of the tunnel and arranged in the front-rear direction.
The moving rail is suspended from the plurality of pulleys;
Tunnel ventilation equipment given in any 1 paragraph of Claims 1-4 .

(Aspect of Claim 1 )
There is a moving rail that moves back and forth in the tunnel,
A telescopic tube is suspended on this moving rail,
A fixed tube is provided on the rear end of this telescopic tube.
The moving rail is in a fixed relationship with the fixed pipe, and in a connecting relationship with a moving gantry that moves back and forth in the tunnel through a buffer mechanism,
The buffer mechanism has a buffer function in at least the front-rear direction and the direction orthogonal thereto,
When the movable frame moves back and forth, the moving rail also moves back and forth, and the fixed tube and the telescopic tube also move back and forth.
A telescopic rod is provided as the buffer mechanism,
The telescopic rod is composed of two or more types of telescopic members having different properties, and one end is connected to the movable frame, and the other end is coupled to the moving rail.
Both of the connection relations consist of a combination of an inner member, a pair of outer members sandwiching the inner member, and a shaft member penetrating the inner member and the outer member,
With this combination, the telescopic rod rotates in the left-right direction in one of the connection relationships, and the telescopic rod rotates in the vertical direction in the other of the connection relationships.
Tunnel ventilation equipment characterized by that .

(Aspect of Claim 2 )
As the elastic member, at least a gas spring and an elongated body are provided.
The tunnel ventilation equipment according to claim 1 .

(Aspect according to claim 3 )
There is a moving rail that moves back and forth in the tunnel,
A telescopic tube is suspended on this moving rail,
A fixed tube is provided on the rear end of this telescopic tube.
The moving rail is in a fixed relationship with the fixed pipe, and in a connecting relationship with a moving gantry that moves back and forth in the tunnel through a buffer mechanism,
The buffer mechanism has a buffer function in at least the front-rear direction and the direction orthogonal thereto,
When the movable frame moves back and forth, the moving rail also moves back and forth, and the fixed tube and the telescopic tube also move back and forth.
As the buffer mechanism, a vertical member in a fixed relationship with any one of the moving gantry and the moving rail, and a cross member in a fixed relationship with the other,
The longitudinal member and the transverse member are assembled with a string member so that the transverse member moves in the longitudinal direction with respect to the longitudinal member and so that the longitudinal member moves in the transverse direction with respect to the transverse member. Being
Tunnel ventilation equipment characterized by that .

(Aspect according to claim 4 )
The cross member is bridged between a pair of auxiliary members extending upward from the movable frame,
The longitudinal member extends downward from the moving rail,
The tunnel ventilation equipment according to claim 3 .

  According to the present invention, it becomes a tunnel ventilation facility that can easily transfer the entire facility.

It is a side view of the ventilation equipment of the 1st form. It is a front view of the ventilation equipment of the 1st form. It is an enlarged view of the buffer mechanism part of FIG. An extendable rod (1) and a contracted rod (2). Plan view (1) and side view (2) of an example of attachment of the escape prevention wire, plan view (3) and side view (4) of the movable frame side connecting portion (one end) of the telescopic rod, and movement of the telescopic rod It is the top view (5) and side view (6) of a rail side connection part (other end part). It is a side view of the ventilation equipment of the 2nd form. It is a front view of the ventilation equipment of the 2nd form. It is an enlarged view of the buffer mechanism part of FIG. It is a side view of the conventional ventilation equipment.

Next, modes for carrying out the invention will be described. In addition, this form is an example of this invention and this invention is not limited to this form.
(First form)
As shown in FIGS. 1 and 2, the ventilation equipment Z1 of the present embodiment includes the telescopic tube 1, the moving rail 2, the fixed tube 3, the tip tube 3A, the auxiliary tube 4, the buffer mechanism X1, the dust collector 7, the moving frame 8, And a hanging tool 9 are mainly provided.

  The hanging tool 9 is suspended from the wall surface T1 of the tunnel T. The hanger 9 may be directly attached to the wall surface (for example, segment) T1 of the tunnel T as in the illustrated example, or may be indirectly attached via a guide rail or the like (not shown).

  However, in any case, it is preferable that the hanging tool 9 is designed so that it can be easily detached from the wall surface T1 of the tunnel T and can be easily attached to the wall surface T1 of the tunnel T. If the lifting tool 9 is designed so that it can be easily attached to the wall surface T1 of the tunnel T, it is easy to attach the lifting tool 9 to the newly formed wall surface T1 of the tunnel T when the ventilation equipment Z1 is moved. Become. As a result, the relocation work of the ventilation facility Z1 can be performed quickly. On the other hand, when the lifting tool 9 is designed so that it can be easily detached from the wall surface T1 of the tunnel T, it becomes easy to remove the lifting tool 9 from the wall surface T1 of the tunnel T when the ventilation equipment Z1 is moved. As a result, also in this respect, the relocation work of the ventilation facility Z1 can be performed quickly.

  The lifting tool 9 is preferably 2 m from the tunnel T3 side of the tunnel T to the face T2 side (or from the face T2 side to the wellhead T3 side), for example, at an interval (hanging pitch) of 1.5 to 2.5 m. They are lined up at intervals. If this interval is too long, the possibility that the movable rail 2 will fail to slide increases. On the other hand, if this interval is too short, the relocation of the ventilation facility 10 becomes cumbersome. In addition, the moving rail 2 has a length of 80 to 100 m, for example.

  As shown in an enlarged manner in FIGS. 2 and 3, the lifting device 9 includes one or a plurality of pulleys 9 </ b> A in the illustrated example. The pulley 9A is provided for suspending the moving rail 2 and smoothing the sliding movement of the moving rail 2. The movable rail 2 is suspended from the wall surface T1 of the tunnel T by being suspended on the plurality of pulleys 9A. The moving rail 2 slides in the tunnel T forward (face T2 side) and backward (wellhead T3 side) in accordance with the rotation of the pulley 9A.

  Various methods for suspending the moving rail 2 by the pulley 9A and for enabling the sliding movement can be considered. In this embodiment, first, I-shaped steel (or H-shaped steel) having an upper flange 2A is used as the moving rail 2. Further, the pulley 9A is in contact with the lower surface of the upper flange 2A and is configured to rotate in this contact state. Therefore, the moving rail 2 is suspended by the upper flange 2A being hooked on the pulley 9A. Further, the moving rail 2 smoothly slides as the pulley 9A rotates.

  As the hanging tool 9 provided with the existing pulley 9A, for example, a trolley or the like can be used. Moreover, in order to be able to remove the hanging tool 9 easily from the wall surface T1 of the tunnel T and to attach it easily to the wall surface T1 of the tunnel T, for example, a lever block (registered trademark) is used. Can do.

  The moving rail 2 suspends the telescopic tube 1, the fixed tube 3, and the tip tube 3A. The fixed tube 3 is connected to the rear end (end of the wellhead T3 side) of the telescopic tube 1. The distal end tube 3A is connected to the distal end portion (the end portion on the face T2 side) of the telescopic tube 1. The fixed tube 3, the telescopic tube 1, and the tip tube 3A are arranged in this order, and are in a communication state in which air passes through the inner space. These tubes 1, 3 and 3A have a circular or square cross section, preferably a circular shape. Moreover, the diameter of these pipes 1, 3, 3A is, for example, 1.5 m.

  The telescopic tube 1 expands and contracts in the front-rear direction (the direction from the wellhead T3 to the face T2 or the direction from the face T2 to the wellhead T3) (expandable duct). The telescopic tube 1 usually has flexibility. The telescopic tube 1 has, for example, a maximum length of 80 to 100 m and a minimum length of 15 to 25 m.

  On the other hand, the fixed tube 3 and the tip tube 3A do not expand and contract in the front-rear direction. The fixed tube 3 and the tip tube 3A are usually made of hard tubes. The fixed tube 3 and the tip tube 3A have a length of 1.5 to 2.0 m, for example.

  The fixed tube 3 may be provided not on the rear end portion of the telescopic tube 1 but on the rear end portion side of the telescopic tube 1, that is, in the middle of the telescopic tube 1. Further, another hard tube may be provided (intervened) in the middle of the telescopic tube 1.

  The fixed tube 3 and the tip tube 3 </ b> A are directly suspended from the moving rail 2. In particular, the tip tube 3A is suspended so as to be movable back and forth. On the other hand, the telescopic tube 1 is not directly suspended from the moving rail 2. The telescopic tube 1 is indirectly suspended from the moving rail 2 via a fixed tube 3 and a tip tube 3A. Therefore, the telescopic tube 1 expands and contracts in the front-rear direction according to the front-rear movement of the distal end tube 3A.

  The tip tube 3A can be moved back and forth using the rotating body 5 provided at the upper end of the tip tube 3A. The rotating body 5 abuts on the lower surface of the moving rail 2 and rotates in this abutting state. By this rotation, the tip tube 3A moves back and forth due to frictional resistance between the peripheral surface of the rotating body 5 and the lower surface of the moving rail 2.

  The fixed tube 3 is connected to a dust collector, an exhaust fan, and in this embodiment, a dust collector 7 through an auxiliary tube 4. The auxiliary pipe 4 is made of, for example, a flexible duct. In addition, the dust collector 7 is installed on the loading platform of the movable platform 8. The mobile gantry 8 moves to the face T2 side (front) or to the wellhead T3 side (rear) by self-propelling or being pulled by another traveling means.

  The mobile gantry 8 in the illustrated example is a self-propelled truck. As the movable base 8, a so-called sled (see FIG. 6) towed by other traveling means can be used. However, when the movable mount 8 is a track or the like, that is, a mount that is partially in contact with the floor surface (roadbed) of the tunnel T (in the case of a truck, the tire is in contact), it is in full contact with the floor surface of the tunnel T. Compared with the case of a gantry (for example, a sled), the vertical vibration received from the floor of the tunnel T is greatly and suddenly increased. Therefore, when the movable gantry 8 is a truck or the like, it is preferable to use the present embodiment (first embodiment) in which the buffering performance of the buffer mechanism X1 is larger than the second embodiment described later.

  The fixed pipe 3 is a member (device) having a relationship corresponding to the drive pipe 103 in the conventional ventilation facility 100. However, the fixed tube 3 is in a fixed relationship with the moving rail 2, unlike the drive tube 103. Further, as shown in FIG. 3, the moving rail 2 is connected to the moving frame 8 via the buffer mechanism X1. Therefore, when the moving gantry 8 moves back and forth, the moving rail 2 also moves back and forth. Further, when the moving rail 2 moves back and forth, the fixed tube 3 that is fixed to the moving rail 2 and the telescopic tube 1 connected to the fixed tube 3 also move back and forth.

  The moving rail 2 can also be directly connected to the moving gantry 8. However, in this embodiment, they are indirectly connected via the dust collector 7.

  The buffer mechanism X1 has a buffer function in at least the front-rear direction and the direction orthogonal thereto. This buffering function makes it difficult for the discontinuity of movement (swaying) of the movable mount 8 to be transmitted to the movable rail 2. Accordingly, it is difficult for the moving rail 2 to deviate.

  In this regard, when it comes to the idea of adopting the buffer mechanism X1, it seems natural that the buffer mechanism is adopted to prevent the shaking from being transmitted from the movable frame 8 to the movable rail 2. However, since the conventional ventilation equipment 100 can usually move the ventilation equipment without any problem, the idea of adopting a buffer mechanism has been triggered. The present inventors came up with the idea and continued to search for a more reliable relocation method, especially when the tunnel T is downwardly inclined (the absolute number of downwardly inclined tunnels is small). In other words, we continued to search for a more reliable relocation method.

  Various methods for expressing the buffer function are conceivable. However, from the viewpoint of mitigating shaking associated with the movement of the mobile gantry 8 that moves in the tunnel T, the following configuration is preferable. This will be specifically described below.

  As shown in FIG. 3, the buffer mechanism X <b> 1 of the present embodiment is provided with an extendable rod 10. The telescopic rod 10 constitutes two or more types of telescopic members having different properties. In this embodiment, as the expansion and contraction member, as shown in FIG. 4, a gas spring 12 and a flat wire spring 11 as a splaying body are provided. By providing two or more types of stretchable members having different properties, it is difficult for the shaking from the movable mount 8 to be transmitted to the movable rail 2. Specifically, for the following reason.

  First, there are various causes of the shaking transmitted from the moving gantry 8 to the moving rail 2, such as start and stop of the moving gantry 8, speed change, undulation of the tunnel T, vibration of the movable gantry 8 itself, and the like. The shaking accompanying the start and stop of the mobile gantry 8 is large and steep, and the shaking accompanying the undulation of the tunnel T is large but gentle (of course, it may be sudden). Further, the shaking caused by the vibration of the movable mount 8 is small and weak. However, if there are two or more types of stretchable members having different properties (physical properties) such as stretch length and stretch force, all shaking can be absorbed appropriately. For example, an expansion / contraction member having a large expansion / contraction length is suitable for absorbing a large shaking. An elastic member having a small expansion / contraction length is suitable for absorbing small shaking. A stretchable member having a strong stretching force is suitable for absorbing a sudden strong shaking. A stretchable member having a weak stretch force is suitable for absorbing a gentle weak shaking.

  In this embodiment, as described above, the gas spring 12 and the flat wire spring 11 are provided as two or more types of elastic members having different properties. Hereinafter, the mechanism by which the buffer function is expressed by the gas spring 12 and the flat wire spring 11 will be described.

  First, the telescopic rod 10 includes a rod body composed of an inner rod 10X, an intermediate rod 10Y, and an outer rod 10Z as a constituent element. The outer rod 10Z has a hollow shape with an end portion on the middle rod 10Y side (in this embodiment, an end portion on the movable frame 8 side) opened. Through the opening, the outer rod 10Z side end portion (in this embodiment, the moving rail 2 side end portion) of the middle rod 10Y is inserted into the outer rod 10Z and pulled out from the outer rod 10Z. By this insertion / extraction, the length of the rod body constituted by the middle rod 10Y and the outer rod 10Z expands and contracts.

  Similarly, the inner rod 10Y has an open end on the inner rod 10X side (in this embodiment, the end on the movable frame 8 side) and is hollow. Through the opening, the end of the inner rod 10X on the middle rod 10Y side (in this embodiment, the end on the moving rail 2 side) is inserted into the middle rod 10Y and pulled out from the middle rod 10Y. By this insertion / extraction, the length of the rod body constituted by the inner rod 10X and the middle rod 10Y expands and contracts.

  The gas spring 12 is a telescopic member having a buffer function by gas pressure or the like. This gas spring 12 is located on both sides of the rod body. One end 12a of the gas spring 12 is attached to the middle rod 10Y. The other end 12b of the gas spring 12 is attached to the outer rod 10Z. Therefore, when the rod body constituted by the middle rod 10Y and the outer rod 10Z expands and contracts by inserting / removing the middle rod 10Y with respect to the outer rod 10Z, the buffering function of the gas spring 12 appears.

  The flat wire spring 11 is housed in the middle rod 10Y. In addition, the inner rod 10X is inserted into the flat wire spring 11 from the movable frame 8 side (the one end portion 11a side). One end portion 11a of the flat wire spring 11 is fixed to the inner rod 10X side end portion of the middle rod 10Y. The other end portion 11b of the flat wire spring 11 is fixed to the end portion on the middle rod 10Y side of the inner rod 10X. Therefore, when the rod body constituted by the inner rod 10X and the middle rod 10Y expands and contracts by inserting / removing the inner rod 10X with respect to the middle rod 10Y, the buffer function of the flat wire spring 11 is exhibited.

  In the above embodiment, the gas spring 12 contracts when the rod body constituted by the intermediate rod 10Y and the outer rod 10Z contracts (state (2) in FIG. 4). On the other hand, the gas spring 12 extends when the rod main body constituted by the intermediate rod 10Y and the outer rod 10Z extends (state (1) in FIG. 4).

  On the other hand, when the rod body constituted by the inner rod 10X and the middle rod 10Y contracts, the flat wire spring 11 extends (state (1) in FIG. 4). On the other hand, when the rod body constituted by the inner rod 10X and the middle rod 10Y extends, the flat wire spring 11 contracts.

  Therefore, when a sudden impact is applied to the rod body (extensible rod 10) and the rod body composed of the middle rod 10Y and the outer rod 10Z contracts (when the state changes from (1) to (2) in FIG. 4). ), First, the rapid contraction of the rod body is alleviated by the gas spring 12. Further, during this contraction, the rod body constituted by the inner rod 10X and the middle rod 10Y extends. This expansion also relieves rapid contraction of the rod body. Further, the extension of the rod body constituted by the inner rod 10 </ b> X and the middle rod 10 </ b> Y is relaxed by the flat wire spring 11. Therefore, the rapid contraction of the rod main body is relieved also in this respect. It should be noted that the rapid expansion and contraction prevention of the rod body leads to prevention of the deviation of the moving rail 2.

  The expansion / contraction length of the rod body can be adjusted by adjusting the expansion / contraction length of the gas spring 12 and the expansion / contraction length of the flat wire spring 11. Similarly, the stretching force of the rod body can be adjusted by adjusting the stretching force of the gas spring 12 and the stretching force of the flat wire spring 11.

  Specifically, the expansion / contraction length L1 (see FIG. 4) of the gas spring 12 is preferably 300 mm or less, and more preferably 300 mm. On the other hand, the expansion / contraction length of the flat wire spring 11 is preferably 200 to 400 mm, and more preferably 400 mm.

  On the other hand, the spring thrust of the gas spring 12 is preferably 2200 N or less on the contraction side and 1400 N or less on the expansion side, more preferably 2178 N on the contraction side and 1372 N on the expansion side. On the other hand, the spring thrust of the flat wire spring 11 is preferably 2300 N or less on the contraction side and 2300 N or less on the expansion side, more preferably 2260 N on the contraction side and 2260 N on the expansion side.

  The inventors have a gas spring (maximum length 850 mm, minimum length 550 mm, expansion / contraction length 300 mm, spring thrust (contraction side) 2178N, spring thrust (extension side) 1372N), and flat wire spring (maximum length 400 mm, minimum length 200 mm). The test was performed by sliding the moving rail using a 200 mm extension / contraction length, a spring thrust (contraction side) 2260N, and a spring thrust (extension side) 2260N). In this test, there was no deviation of the moving rail, and the slide could move smoothly.

  In this embodiment, one gas spring 12 and one flat wire spring 11 are provided (one gas spring 12 is a pair). However, a form in which two or more gas springs 12 having different properties are provided, a form in which two or more striated bodies (11) having different properties are provided, a form in which these are combined, and the like can also be adopted. What is used as the expansion / contraction member, how many are provided, and the like may be appropriately designed according to the nature of the movable frame 8, the undulations of the tunnel T, and the like.

  In this embodiment, the gas spring 12 is provided at the center of the rod main body (expandable rod 10), and the flat wire spring 11 is provided at the end of the rod main body (expandable rod 10) on the moving frame 8 side. However, for example, a form in which the flat wire spring 11 is provided at the end of the rod body on the side of the moving rail 2, a form in which both ends are provided, and a form in which the gas spring 12 is provided at one or both ends of the rod body are also adopted. be able to. Regarding the arrangement of such stretchable members, it is preferable to design appropriately according to the properties of the movable mount 8 and the undulations of the tunnel T.

  However, it is preferable to arrange the flat wire spring 11 at the end of the movable frame 8 as in this embodiment. According to this embodiment, it is possible to more reliably prevent the fine vibration generated by the moving gantry 8 itself from being absorbed by the flat wire spring 11 and transmitted to the moving rail 2.

  The telescopic rod 10 has one end portion 10a connected to the movable frame 8 (first connection relationship). This first connection relationship may be direct. However, in this embodiment, as shown in FIG. 3, the one end portion 10 a of the telescopic rod 10 and the movable mount 8 are indirectly connected via the dust collector 7 and the auxiliary member 13 extending upward from the upper surface of the rear end portion of the dust collector 7. Are connected.

  The telescopic rod 10 has the other end portion 10b connected to the moving rail 2 (second connection relationship). This second connection relationship may be direct. However, in this embodiment, there is an indirect connection relationship via the auxiliary member 14 provided on the lower surface of the rear end portion of the moving rail 2.

Both the first connection relationship and the second connection relationship include an inner member C1, a pair of outer members C2 sandwiching the inner member C1, and these inner portions, as shown in FIGS. It consists of the combination of the shaft member C3 which penetrates the material C1 and the outer member C2. In the first connection relationship, the shaft member C3 extends in the vertical (up and down) direction. On the other hand, in the second connection relationship, the shaft member C3 extends in the lateral (left-right) direction. In this form, in one form of connection relation, in this form, in the first connection relation, as shown in (3) of FIG. 5, the rod body (extensible rod 10) rotates in the left-right (lateral) direction. The other connection relationship, in the second connecting relationship in the present embodiment, as shown in (6) in FIG. 5, the rod body (telescopic rod 10) is pivoted up and down (vertical) direction. Therefore, even when the traveling platform 8 (or the dust collector 7) and the moving rail 2 are relatively displaced in the vertical direction or the horizontal direction during the movement (transfer), the deviation can be absorbed. Of course, it is possible to cope with the positional deviation existing from this place.

  According to the above telescopic rod 10 (buffer mechanism X1), the deviation of the moving rail 2 can be reliably prevented. Therefore, there is no possibility that the moving rail 2 falls. However, in this embodiment, as shown in (1) and (2) of FIG. 5, the risk of dropping is more reliably prevented by providing the escape prevention wire 15.

  As shown in FIGS. 5 (3) and 5 (4), one end portion of the escape prevention wire 15 (in this embodiment, the end portion on the movable frame 8 side) is attached to the rear end surface of the auxiliary member 13. It is hooked on a hanging member 15A such as a shackle.

  As in this embodiment, the hanging member 15A is positioned near one end 10a of the telescopic rod 10 in the lateral (left and right) direction and above the one end 10a of the telescopic rod 10 in the vertical (vertical) direction. It is preferable.

  On the other hand, the other end portion of the escape prevention wire 15 (in this embodiment, the end portion on the moving rail 2 side) is hooked on a hooking member 15B such as a shackle attached to the lower surface of the moving rail 2.

  A plurality of hanging members 15B are attached to the lower surface of the moving rail 2 at appropriate intervals in the front-rear direction. The other end of the escape preventing wire 15 can be hooked on one of the hanging members 15B depending on the situation. In this embodiment, the other end portion of the escape prevention wire 15 is hooked on the hanging member 15B closest to the movable frame 8 side.

(Second form)
Next, the ventilation facility Z2 of the second form will be described with reference to FIGS. The ventilation facility Z2 is mainly characterized in that the ventilation facility Z1 of the first embodiment is different from the buffer mechanism X2. Therefore, the following description will focus on the buffer mechanism X2.

  As shown in FIGS. 6 and 7, in the ventilation facility Z <b> 2 of the present embodiment, the movable gantry 8 is composed of a “sleigh” pulled by other traveling means. The sled (moving base 8) and the moving rail 2 are connected via a buffer mechanism X2.

  As shown in FIG. 8, the buffer mechanism X <b> 2 includes a vertical member 21 that is in a fixed relationship with the moving rail 2. The vertical member 21 is fixed to the lower surface of the moving rail 2 so as to extend downward from the lower surface of the moving rail 2. The vertical member 21 is reinforced by a reinforcing member 21A. One end of the reinforcing member 21 </ b> A is fixed to the lower end of the longitudinal member 21. On the other hand, the other end of the reinforcing member 21 </ b> A is fixed to the lower surface of the moving rail 2. The fixing position of the reinforcing member 21A is on the front side (face T2 side) than the fixing position of the vertical member 21.

  The buffer mechanism X2 further includes a cross member 22 that is in a fixed relationship with the movable frame 8. This fixed relationship may be direct. However, in the present embodiment, the buffer mechanism X2 and the movable frame 8 are in an indirect fixed relationship via the dust collector 7.

  As shown in FIG. 7, the cross member 22 is bridged between a pair of auxiliary members 23. The pair of auxiliary members 23 extend upward from the suction base 7A of the dust collector 7 as shown in FIG. If necessary, the auxiliary material 23 can be extended upward in combination with another member 23A as shown in the illustrated example.

  The vertical member 21 and the horizontal member 22 are assembled by the string member 20 being hung around a portion where both intersect. Therefore, when the moving rail 2 and the moving gantry 8 are moved, both 21 and 22 are not separated. However, the assembling of both 21 and 22 is such that the cross member 22 can move in the vertical (up and down) direction with respect to the vertical member 21 and the vertical member 21 in the horizontal (left and right) direction with respect to the cross member 22. It is done to be movable. That is, the assembling by the string material 20 of both 21 and 22 is performed slightly loosely. By such assembly, the buffer function of the buffer mechanism X2 is expressed. Since the buffer mechanism X2 is formed only by assembling the members, it is economical, and there is almost no possibility of failure or the like.

However, the buffer mechanism X2 of the second form has a weaker buffer function than the buffer mechanism X1 of the first form. Therefore, when the shaking from the moving gantry 8 to the moving rail 2 is large, for example, when the moving gantry 8 is a truck or the like, it is preferable to employ the buffer mechanism X1 of the first embodiment. On the other hand, when the shaking from the moving frame 8 to the moving rail 2 is small, for example, when the moving frame 8 is a warp or the like, it is preferable to employ the buffer mechanism X2 of the second form. Such viewpoint et al, in the present embodiment is a moving platform 8 gasoline (second embodiment) employs the second buffering mechanism X2.

  The present invention can be used as a tunnel ventilation facility.

DESCRIPTION OF SYMBOLS 1 Telescopic pipe 2 Moving rail 3 Fixed pipe 3A Tip pipe 4 Auxiliary pipe 5 Rotating body 7 Dust collector 7A Suction port 8 Moving mount 9 Lifting tool 9A Pulley 10 Telescopic rod 10X Inner rod 10Y Middle rod 10Z Outer rod 11 Rectangular spring 12 Gas spring DESCRIPTION OF SYMBOLS 13,14 Auxiliary member 15 Escape prevention wire 15A, 15B Hanging member 20 String material 21 Vertical material 21A Reinforcement material 22 Horizontal material 23 Auxiliary material 23A Other member 100 Conventional ventilation equipment 101 Telescopic pipe 102 Moving rail 103 Drive pipe 104 Auxiliary Pipe 105 Rotating body 106 Contact member 106A Rod 106B Vertical material 107 Dust collector 108 Moving base 109 Lifting tool 109A Pulley T Tunnel T1 Wall surface T2 Face T3 Wellhead X1 First form of buffer mechanism (torsion bar system)
X2 Second type buffer mechanism (crossbar system)
Z1 Ventilation equipment of the first form Z2 Ventilation equipment of the second form

Claims (6)

There is a moving rail that moves back and forth in the tunnel,
A telescopic tube is suspended on this moving rail,
A fixed tube is provided on the rear end of this telescopic tube.
The moving rail is in a fixed relationship with the fixed pipe, and in a connecting relationship with a moving gantry that moves back and forth in the tunnel through a buffer mechanism,
The buffer mechanism has a buffer function in at least the front-rear direction and the direction orthogonal thereto,
When the movable frame moves back and forth, the moving rail also moves back and forth, and the fixed tube and the telescopic tube also move back and forth.
Tunnel ventilation equipment characterized by that. Several pulleys hang from the tunnel wall,
The plurality of pulleys can be removed from the wall surface of the tunnel and arranged in the front-rear direction.
The moving rail is suspended from the plurality of pulleys;
The tunnel ventilation equipment according to claim 1. A telescopic rod is provided as the buffer mechanism,
The telescopic rod is composed of two or more types of telescopic members having different properties, and one end is connected to the movable frame, and the other end is coupled to the moving rail.
Both of the connection relations consist of a combination of an inner member, a pair of outer members sandwiching the inner member, and a shaft member penetrating the inner member and the outer member,
With this combination, the telescopic rod rotates in the left-right direction in one of the connection relationships, and the telescopic rod rotates in the vertical direction in the other of the connection relationships.
The tunnel ventilation equipment according to claim 1 or 2. As the elastic member, at least a gas spring and an elongated body are provided.
The tunnel ventilation equipment according to claim 3. As the buffer mechanism, a vertical member in a fixed relationship with any one of the moving gantry and the moving rail, and a cross member in a fixed relationship with the other,
The longitudinal member and the transverse member are assembled with a string member so that the transverse member moves in the longitudinal direction with respect to the longitudinal member and so that the longitudinal member moves in the transverse direction with respect to the transverse member. Being
The tunnel ventilation equipment according to claim 1 or 2. The cross member is bridged between a pair of auxiliary members extending upward from the movable frame,
The longitudinal member extends downward from the moving rail,
The tunnel ventilation equipment according to claim 5.

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