JP4226838B2 - Desorption device and pile press-in device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a desorption device for connecting two members and releasing the connection, and a pile press-fitting device including the desorption device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, connection members configured by detachably connecting members such as hydraulic couplers have been used in many devices.
[0003]
[Problems to be solved by the invention]
However, when such a connecting member is used for industrial purposes and its size increases, a large force is required for the detachment operation.
In the case of the hydraulic coupler, even if the attachment / detachment mechanism is simple, if it is used for industrial, construction, or civil engineering devices, a plurality of male or female pipes may be inserted into the other. There is a possibility that the operator may be staggered by pulling out with a strong force even when a person is required or removed, which is a problem in terms of workability. Such hydraulic couplers are used, for example, in pile press-in devices that press-fit piles into the ground.
[0004]
The subject of this invention is providing the pile press-fit apparatus provided with the removal | desorption apparatus which assists this, and this removal | desorption apparatus so that the removal | desorption operation | work of a connection member may be made easy.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the invention described in claim 1 connects the first member (outer 51) and the second member (inner 55) as shown in FIGS. And a detaching device (30) for releasing the connection, the device fixing portion (bracket 31) attached directly or indirectly to the first member, and the device fixing portion. A shaft member (shaft 32) that is pivotally supported by the shaft member and rotatable together with the shaft member (bending link member 34, first driven link member 36, second driven link member 37), An engagement member (inner set member 40) attached to the second member and engageable with the rotation member is provided, and the rotation member rotates the engagement member in a predetermined direction. So as to connect the second member to the first member via Is dynamic, said the predetermined direction and moving the second member through the engagement member by rotating in the opposite direction so as to be separated from the first member.
[0008]
According to the first aspect of the present invention, when the pivot member is rotated in a predetermined direction via the shaft member or directly using a rod-shaped member or the like, the second member is interposed via the engagement member. If it moves so that it may connect with a 1st member, and it rotates to a reverse direction, a 2nd member will move so that it may space apart from a 1st member via the said engagement member. If either the rotating member or the shaft member is rotated by the rod-like member in this way, the rotational motion is converted into a linear reciprocating motion with a small force by the so-called “lever principle”, and the first member and The second member can be brought into and out of contact with each other and can be connected and disconnected. Therefore, the member can be easily attached and detached with a little force. If the force is small, the reaction is small and the safety is high. Further, since a weak force is sufficient, the number of workers required for the work can be reduced, a driving source such as a cylinder does not enter, and the simple structure of the lever principle can reduce the cost. Moreover, since it can be operated quickly by the lever principle, it can work in a short time.
[0009]
Here, the number of rotating members is not limited to one, and a plurality of rotating members may be provided. In addition, the “device fixing portion directly or indirectly attached to the first member” means that the device fixing portion may be directly attached to the first member, or the first member is fixed. It may be that the device fixing portion is attached to the member.
[0010]
Further, the present invention is characterized in that the engaging member and the second member are detachable.
According to the present invention, the engaging member and the second member are detachable, and the engaging member can be detached from the second member when not in use, which is highly convenient.
[0011]
The invention according to claim 2 includes a hydraulic coupler (50) composed of a male pipe (inner 55) and a female pipe (outer 51), and presses the pile by taking a reaction force from an existing pile while using hydraulic pressure. in pile press-device (10) for performing, the other to the one of the male pipe and the female pipe as the first member as a second member, for releasing the connection between them and the connection, desorption apparatus according to claim 1 The pile press-fitting device is characterized in that (30) is provided.
[0012]
According to the second aspect of the present invention, connection and release of the hydraulic coupler of the pile press-fitting device can be performed by the desorption device according to the first aspect . Therefore, it is possible to easily attach and detach the hydraulic coupler. In particular, the attachment / detachment device according to the first aspect makes it possible to easily attach / detach the hydraulic coupler with a small force. If the force is small, the reaction is small and the safety is high. Further, since a weak force is sufficient, the number of workers required for the work can be reduced, and since the drive structure such as a cylinder does not enter and the structure is simple as this principle, the cost can be reduced. Moreover, since it can be operated quickly by the lever principle, it can work in a short time.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, the structure of the pile press-in apparatus 10 as embodiment of this invention was shown. The pile press-fitting device 10 includes clamps 11, 11,..., A saddle 12, a slide base 13, a mast 14, a chuck 15, and the like. This pile press-fitting device 10 presses a new pile 2 into the ground while moving on the existing piles 1, 1,... Embedded in the ground, and constructs a pile row. On the other hand, the pile press-fitting device 10 can also pull out the existing piles 1, 1,.
[0014]
Each clamp 11 is attached to a saddle 12. The clamp 11 grips the existing pile 1 and is driven by a clamping hydraulic cylinder (not shown) to perform an operation of gripping the existing pile 1 and an operation of releasing the existing pile 1.
A slide base 13 is mounted on the saddle 12, and the slide base 13 is slidable forward and backward (left and right in FIG. 1) with respect to the saddle 12. The slide base 13 is driven by a slide hydraulic cylinder (not shown) and can move back and forth with respect to the saddle 12.
[0015]
A mast 14 stands on the slide base 13. The mast 14 is rotatable with respect to the slide base 13 around the vertical axis. The mast 14 is driven by a hydraulic motor (not shown) and can rotate with respect to the slide base 13.
A chuck 15 is movable up and down with respect to the mast 14. That is, a guide rail 19 extending vertically is provided at the front end portion of the mast 14, and an elevating body 20 is slidably engaged with the guide rail 19 up and down. A vertical hydraulic cylinder 21 is provided in front of the mast 14 to drive the elevator 20 by moving it up and down. Further, a chuck 15 is provided at the front portion of the lifting body 20. With such a configuration, the vertical hydraulic cylinder 21 drives the lifting body 20 so that the lifting body 20 can move up and down together with the chuck 15.
[0016]
The chuck 15 grips the pile 2 and is driven by a chuck hydraulic cylinder (not shown) to perform an operation of gripping the pile 2 and an operation of releasing the pile 2.
[0017]
Further, as a separate body from the pile press-in device 10, a hydraulic unit (not shown) that includes a hydraulic pump, an engine, etc., generates hydraulic pressure, sends hydraulic oil to each part of the pile press-in device 10, and drives the pile press-in device 10. Is provided. The oil from this hydraulic unit is fed into the pile press-fitting device 10 through the hydraulic coupler 50 shown in FIG. 1, and the above-described clamping hydraulic cylinder, sliding hydraulic cylinder, hydraulic motor, vertical hydraulic cylinder 21, hydraulic pressure for chucking. Drive the cylinder. In the present embodiment, since FIG. 1 is a side view, only one set of hydraulic couplers 50 is shown, but another set of hydraulic couplers 50 is provided on the back side of the drawing. However, one set of the hydraulic coupler 50 may be used.
[0018]
As shown in FIGS. 1, 3 and 4, the hydraulic coupler 50 includes an outer (first member) 51 which is a female pipe attached to a mounting portion 25 inside the mast 14, and oil in the hydraulic unit. It is comprised from the inner (second member) 55 of the male pipe connected to the pipe through a hose or the like. A sliding ring 52 that is formed in a wide annular shape and is slidable in the left-right direction in FIG. 3 is attached to the outer side of the outer 51. Although not shown in the drawings, the outer inner tube 53 inside the sliding ring 52 has a plurality of through holes penetrating the tube along the circumferential direction, and the balls are arranged so as to fall from the outside of each hole. . These balls are larger than the through holes and do not pass through.
[0019]
When the outer 51 and the inner 55 are connected, the sliding ring 52 is in a position to hide the ball, and the ball is pushed inward by the inner peripheral surface of the sliding ring 52, and the inner 55 It is locked so as not to come off. Further, when releasing the connection, if the sliding ring 52 is operated by hand or the like and lowered to the left in FIG. 3, the ball becomes free and the inner 55 can be pulled out. When the sliding ring 52 is lowered in the left direction, it is locked at a predetermined position. When the inner 55 is inserted into the outer 55 again, the locking of the sliding ring 52 is released to return to the position where the ball is covered. Both are configured to be connected.
3 and 4 are shown fixed at a position where the sliding ring 52 covers the ball for convenience.
[0020]
The connection or disconnection of the hydraulic coupler 50 can be performed by inserting and removing the inner 55 from the outer 51 as described above. However, in the present embodiment, as shown in FIGS. Desorption device 30 is used for 50 connections and disconnections.
In FIG. 2, the structure of the removal | desorption apparatus 30 provided in the pile press-fit apparatus 10 of FIG. 1 was shown. The detaching device 30 includes a bracket 31, a bent link member 34, an inner set member 40, and the like.
[0021]
The bracket (device fixing portion) 31 is fixed to the wall surface of the mounting portion 25, is fixed to the base plate 31d, both side surfaces of the base plate 31d, and has side plates 31a and 31c having shaft holes at the tips, and side plates. It consists of an intermediate plate 31b which is fixed on the base plate 31d at an approximately equal interval with respect to both 31a and 31c and which has a shaft hole at the tip. The outer 51 portions of the two sets of hydraulic couplers 50 are located between the side plate 31a and the middle plate 31b and between the middle plate 31b and the side plate 31c, respectively.
[0022]
A shaft (shaft member) 32 is rotatably attached to the shaft holes of the side plates 31a and 31c and the intermediate plate 31b.
A bent link member 34 that is bent at the central portion is provided on the outer surface of the side plate 31a. The shaft 32 is fixed to the bent portion 34 a, whereby the bent link member 34 rotates together with the shaft 32.
The bent portion 34a is provided with a protruding pin 34c. On the other hand, a stopper pin 31e is fixed in the vicinity of the bent link member 34 of the side plate 31a, and the bent pin member 34 is brought into contact with the stopper pin 31e so that the bent link member 34 is stopped and the clockwise rotation position is regulated. It has become.
[0023]
The bent link member 34 is divided into a distal end portion 34b and a pipe connecting arm 34d with the bent portion 34a interposed therebetween.
A short round bar 38 is fixed to the pipe connecting arm 34d. By inserting the pipe 39 into the tip of the round bar 38, a large torque can be applied to the bending link member 34 with a smaller force in accordance with the lever principle.
Further, as shown in FIG. 2, a pin attachment piece 33 having an L-shaped cross section and having a pin hole 33 a formed at the upper portion is fixed inside the distal end portion 34 b of the bending link member 34. Between the pin hole 33a and the link member 34, an engagement pin (not shown) that is engaged with an engagement recess 42a described later is fixed.
[0024]
The two pin mounting plates 36a and 36a are fixed in a state where the intermediate plate 31b is sandwiched and inserted through the shaft 32, and the first driven link member 36 is configured by these pin mounting plates 36a and 36a. A pin hole 36a is formed in the upper part of each pin mounting plate 36, and an engagement pin (not shown) engaged with the engagement recess 42a is fixed to the pin holes 36a, 36a.
A second driven link member 37 having a shape similar to that of the pin mounting plate 36a and having a pin hole 37a in the upper portion is fixed to the shaft 32 on the outer surface of the side plate 31c. Inside the second driven link member 37, a pin mounting piece 35 which is similar to the pin mounting piece 33 and has a pin hole is fixed, and an engagement recess is formed between the pin mounting piece 35 and the second driven link member 37. An engagement pin (not shown) engaged with 42a is fixed.
When the shaft 32 rotates, the first driven link member 36 and the second driven link member 37 rotate with the rotation. The bending link member 34, the first driven link member 36, and the second driven link member 37 are the rotating members of the present invention. Further, since the inner set member 40 is driven to come in contact with and separate from the blanket 31 by the shaft 32, the bent link member 34, the first driven link member 36, and the second driven link member 37, these enable the invention. Driving means is configured.
In addition, if the hydraulic coupler 50 is one set, the bracket 31 may have a width corresponding to one outer 51. In this case, the side plate 31c and the second driven link member 37 are unnecessary.
[0025]
The inner set member 40 that is an engaging member is formed in a substantially U-shape when viewed from the front and rear. In the center, an arc portion 41 cut into an arc shape so as to be fitted along the outer periphery of the inner 55 is formed. As shown in FIG. 3, the inner 55 has a thin portion 56 that is partially thin, and the arc portion 41 is set therein.
Further, the inner set member 40 includes substantially triangular triangular plates 42 and 42 that face each other. Engaging recesses 42a and 42a that can be engaged with the engaging pins fixed to the bent link member 34, the first driven link member 36, and the second driven link member 37 are formed at the lower ends of the triangular plates 42 and 42. Has been. A through portion 42b for passing a string or the like is formed on the opposite side of the engagement recess 42a in each triangular plate 42.
[0026]
Next, based on FIG.3 and FIG.4, the operation | movement at the time of connecting or releasing the connection of the hydraulic coupler 50 by the bending link member 34 and the 1st driven link member 36 of the attachment / detachment apparatus 30 is demonstrated.
FIG. 3A shows a state before connection, in which the tip of the inner 55 approaches the opening of the outer 51. At this time, the bending link member 34 is in the initial position where the protruding pin 34c contacts the stopper pin 31e. A predetermined position with respect to the inner 55 is indicated by a virtual line as “P”. Hereinafter, the amount of movement of the inner 55 is shown with reference to this P position.
[0027]
As shown in FIG. 3A, before the connecting operation, the arc portion 41 of the inner set member 40 is set so as to cover the small diameter portion 56 of the inner 55. On the other hand, the pipe 39 is fitted into the round bar 38. The engaging recess 42 a is directly above the distal end portion 34 b of the bent link member 34 and is not engaged with an engaging pin fixed to the bent link member 34. Note that the engaging pin fixed to the first driven link member 36 not visible in FIG. 3A is also directly below the engaging recess 42a and is not engaged.
[0028]
In the state shown in FIG. 3A, the pipe 39 is moved upward by hand as shown in FIG. Thereby, the bending link member 34 rotates together with the shaft 32 in the counterclockwise direction. By this rotation, the engagement pin fixed to the tip end portion 34b is engaged with the engagement recess 42a. At this time, the first follower link member 36 (not shown) also rotates counterclockwise, and the engagement pin fixed thereto engages with the other engagement recess 42a.
When the bending link member 34 is further rotated, the inner side of the engagement recess 42a is pushed by the two engagement pins, the inner set member 40 is moved horizontally to the left, and the arc portion 41 moves the left side of the small diameter portion 56. The ring-shaped surface 57 formed on the inner surface 55 is pushed, and the inner 55 is also advanced by the distance x1.
Note that the two engagement pins not only move forward but slightly upward, but the upward movement is absorbed in the engagement recess 42 a and is not transmitted to the inner 55.
[0029]
Further, when the bending link member 34 rotates counterclockwise via the pipe 39, it moves by a distance x2 as shown in FIG. 4A, and finally advances by a distance x3 as shown in FIG. 4B. The tip portion of the inner 55 is inserted into the outer 51, and both are connected.
When the connection work is finished, the inner set member 40 and the pipe 39 may be removed.
When releasing the connection, the sliding ring 52 is removed to the left as described above, the bent link member 34, the inner set member 40, the pipe 39, etc. are brought into the state shown in FIG. 4B, and the pipe 39 is lowered downward. Then, the bending link member 34 and the first driven link member 36 are rotated clockwise to move the inner 55 to the right and remove from the outer 51.
[0030]
When the first driven link member 36 and the second driven link member 37 connect and release the hydraulic coupler 50 between them, the inner set member 40 is set to the hydraulic coupler 50. Then, the bending link member 34 is driven in the same manner as described above, and the two engaging pins fixed to the first driven link member 36 and the second driven link member 37 are engaged with the engaging recess 42a to connect or connect. Is released.
[0031]
According to the above desorption device 30 and the pile press-fitting device 10 including the same, when the bending link member 34 is rotated counterclockwise by the pipe 39, the inner 55 is connected to the outer 51 via the inner set member 40. The inner 55 moves away from the outer 51 if it is moved in the direction of rotation and rotated in the opposite direction.
That is, by using the pipe 39, the rotational motion can be converted into a linear reciprocating motion with a small force by a so-called “leverage principle”, and the outer 51 and the inner 55 can be connected and disconnected.
Therefore, the member can be easily attached and detached with a little force. If the force is small, the reaction is small and the safety is high. Further, since a weak force is sufficient, the number of workers required for the work can be reduced, and a driving source such as a cylinder and a motor does not enter, and the simple structure of the lever principle can reduce the cost. Moreover, since it can be operated quickly by the lever principle, it can work in a short time.
[0032]
In addition, this invention is not limited to the said embodiment, It can change suitably.
For example, in the above embodiment, the first member is the outer of the hydraulic coupler and the second member is the inner. That is, the engaging member may be attached to the outer and moved.
In the above embodiment, in the present invention, both of the first member and the second member may be a connecting portion at the tip of a movable hose.
Furthermore, not only tubular members such as hydraulic couplers and hoses but only one of them may be tubular, or none of them may be tubular. In short, the present invention can be applied to a set of members that are configured so as to draw and connect the other with respect to one, or to release the connection by pulling them apart.
[0033]
In the detaching device 30, the inner set member 40 is completely separate from the rotation drive system such as the bracket 31 and the bending link member 34, but may be configured to be always connected to the rotation drive system.
[0034]
The mechanism for transmitting the rotational force to the shaft 32 is not limited to the above embodiment. For example, the bent link member 34 is also formed in the same shape as the second driven link member 37, and a hexagonal nut or a bolt having a hexagonal recess is fixed to the outer surface of the bent link member 34 while being fixed to the shaft 32. . When connecting or disconnecting, if it is a nut, a socket wrench or a spectacle wrench is fitted, if it is a bolt having a hexagonal recess, a hexagon wrench is fitted, and the pipe 39 is operated up and down. Good.
Conversely, the pipe connection arm 34d of the bending link member may be formed longer, and the bending link member 34 may be directly rotated by grasping the pipe connection arm 34d itself.
[0035]
【The invention's effect】
According to the present invention , one of the first member and the second member can be brought into contact with and separated from the other through the first attachment member and the second attachment member using the drive means. It becomes easy to connect and release the connection between the first member and the second member.
[0036]
Further , according to the present invention, when the pivot member is directly rotated in a predetermined direction using a rod-shaped member or the like, the second member is moved through the engagement member to the first If it moves so that it may connect with a member and it rotates to a reverse direction, a 2nd member will move so that it may space apart from a 1st member via the said engagement member. Thus, if either the rotating member or the shaft member is rotated by the rod-shaped member, the rotational movement is converted into a linear reciprocating movement with a small force by the so-called “lever principle”, and the first member and The second member can be brought into and out of contact with each other and can be connected and disconnected. Therefore, the member can be easily attached and detached with a little force. If the force is small, the reaction is small and the safety is high. In addition, since a weak force is sufficient, the number of workers required for the work can be reduced, and a driving source such as a cylinder does not enter, and the simple structure of the lever principle can reduce the cost. Moreover, since it can be operated quickly by the lever principle, it can work in a short time.
[Brief description of the drawings]
FIG. 1 is a side view showing an example of a pile press-fitting device of the present invention.
FIG. 2 is a perspective view showing the entire desorption device provided in the pile press-fitting device.
FIGS. 3A and 3B are side views sequentially showing the operation of the desorption device. FIGS.
4 (a) and 4 (b) are side views sequentially showing the operation of the detaching apparatus continued from FIG.
[Explanation of symbols]
10 Pile press-fitting device 30 Desorption device 31 Bracket (first mounting member, device fixing part)
32 shaft (shaft member)
34 Bending link member (rotating member)
36 1st driven link member (rotating member)
37 Second driven link member (rotating member)
40 Inner set member (second mounting member, engaging member)
42a, 42a Engaging recess 50 Hydraulic coupler 51 Outer (first member)
55 Inner (second member)

Claims (2)

A desorption device for connecting a first member and a second member and releasing the connection,
A device fixing part attached directly or indirectly to the first member;
A shaft member attached to the device fixing part;
A pivot member pivotally supported by the shaft member and rotatable together with the shaft member;
An engaging member attached to the second member and engageable with the rotating member;
The engaging member and the second member are detachable,
The rotating member moves in a predetermined direction so as to connect the second member to the first member via the engaging member, and rotates in a direction opposite to the predetermined direction. And moving the second member away from the first member via the engaging member.   In a pile press-in device that includes a hydraulic coupler comprising a male pipe and a female pipe, and that presses the pile by taking a reaction force from an existing pile while using hydraulic pressure, one of the male pipe and the female pipe is the first member. A pile press-fitting device, wherein the desorption device according to claim 1 is provided for connecting and releasing the connection with the other member as the second member.

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