JPH0712596U - Propulsion device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a propulsion device capable of easily attaching and detaching a propulsion pipe, facilitating a propulsion operation, and improving durability. [Structure] A split member 19b below the upper and lower split sandwiching members 19 capable of sandwiching a propulsion tube 7 which is continuously bent so as to be bendable along the longitudinal direction, and is split into both split members 19a, 1 of the sandwiching member 19.
9b of the propulsion pipe 7 in the state of being arranged between the 9b, the clamp cylinder 36 which is retractable in the radial direction and can be switched between the clamped state and the non-clamped state is mounted. At the base end of the propelling cylinder mounting bracket 25 of the apparatus main body 20 having the propulsion cylinder 24 for driving the holding member 19 back and forth along the longitudinal direction,
A hydraulic hose for driving the clamp cylinder 36 is provided with an insertion hole H through which the hydraulic hose can be inserted in the front-rear direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention provides an upper and lower half-divided sandwiching member capable of sandwiching a propulsion pipe continuously bent along the longitudinal direction, and sandwiching the sandwiching member along the longitudinal direction of the propulsion pipe in a state of being sandwiched by the sandwiching member. A propulsion cylinder for driving and moving the member back and forth is provided on the main body of the device, and the propulsion pipe in the state of being arranged between the two divided members of the above-mentioned clamping member is pushed and retracted in the radial direction of the propulsion pipe so as to have a clamped state and a non-clamped state. The present invention relates to a propulsion device provided with a switchable clamp cylinder.

[0002]

[Prior art]

 As a conventional propulsion device, as shown in FIG. 7, when the clamp cylinder 50 is provided in an upper dividing member 51a that constitutes the holding member 51, and the holding member 51 holds the propulsion pipe 52, After removing the upper dividing member 51a and disposing the propulsion pipe 52 on the lower dividing member 51b, the upper dividing member 51a is covered and fixed, and the clamp cylinder 50 is clamped. was there.

[0003]

[Problems to be solved by the device]

 According to the above-described conventional propulsion device, the clamp cylinder 50 is provided on the upper division member 51a. Therefore, in addition to the weight of the upper division member 51a, the clamp cylinder 50 and the clamp cylinder 50 are provided. The weight of the driving hydraulic hose and the like connected to the clamp cylinder 50 is also added, and the upper split member 51a that is detached when setting the propulsion pipe 52 between the two holding members 51 is heavy and the handleability is poor. However, there is a drawback that it takes time to attach and detach the propulsion pipe and the efficiency is low.

In addition, in a state where the both holding members 51 are combined, the driving hydraulic hose is exposed on the upper dividing member 51a or in a state of protruding laterally. There is a risk that the hydraulic hose will be an obstacle, making it difficult to work and reducing the efficiency. Of course, if something else gets caught on the hydraulic hose, there is a risk of damaging the hydraulic hose itself, and the propulsion work efficiency and durability are likely to be reduced.

Therefore, in view of the above-mentioned drawbacks, an object of the present invention is to provide a propulsion device that facilitates attachment / detachment of a propulsion pipe, facilitates propulsion work, and improves durability.

[0006]

[Means for Solving the Problems]

 In order to achieve this object, the propulsion device according to the present invention is characterized in that the holding member is provided at the lower splitting member of the upper and lower splitting splitting members capable of holding the propulsion pipe continuously bent along the longitudinal direction. The clamp cylinder that can be switched between the clamped state and the non-clamped state by protruding and retracting in the radial direction with respect to the propulsion pipe in the state of being placed between the two split members, is clamped by the clamp member. The hydraulic cylinder for driving the clamp cylinder in the front-back direction is attached to the base end of the propelling cylinder mounting bracket of the main body of the apparatus, which has the propulsion cylinder for driving the clamping member in the longitudinal direction along the longitudinal direction of the propulsion pipe. There is a through hole that can be inserted along it.

[0007]

[Action]

 According to the characteristic structure of the propulsion device in the present invention, since the clamp cylinder is attached to the dividing member below the holding member, it is possible to remove the clamp cylinder from the dividing member above, compared with the conventional one. The weight can be reduced, the handling becomes easier, and the propulsion pipe can be easily and efficiently attached and detached.

Further, since the clamp cylinder, the hydraulic hose for driving the clamp cylinder, etc. are located under the sandwiching member, they are hard to be exposed on the surface of the propulsion device, and the hydraulic hose etc. obstruct the work. It is also possible to prevent the hydraulic hose from being exposed to the surface of the propulsion device, so that the hydraulic hose can be prevented from being damaged or damaged even if another object hits the propulsion device. It becomes possible to prevent it.

Further, the propulsion work is carried out by moving the holding member forward and backward with respect to the apparatus main body by the propulsion cylinder. According to the characteristic configuration of the propulsion apparatus of the present invention, the propulsion cylinder of the apparatus main body is used. The base end of the mounting bracket has an insertion hole through which the hydraulic hose for driving the clamp cylinder can be inserted along the front-rear direction, so that it moves back and forth together with the clamp cylinder attached to the lower split member. The hydraulic hose can be smoothly guided through the insertion hole along the front-rear direction. Therefore, the hydraulic hose meanders between the propulsion cylinder and the main body of the device as it is propelled to the side, and the protruding hydraulic hose hinders work, lowers efficiency, and catches on other objects. It is possible to prevent the hydraulic hose from being damaged by damage, and effectively use the space between the holding member and the main body of the device as a holding space in which the hydraulic hose can be positioned so as to be slidable back and forth. You can

[0010]

[Effect of device]

 Therefore, according to the propulsion device of the present invention, the weight of the upper division member can be reduced, the propulsion pipe can be easily attached and detached, and the gap between the propulsion cylinder and the main body of the device can be retained by the hydraulic hose for driving the clamp cylinder. It can be effectively used as a space, and it is possible to prevent lowering of work efficiency due to the hose of the hydraulic hose and deterioration of durability of the hydraulic hose, and it is possible to improve both propulsion work efficiency and device durability. Become.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 3 and FIG. 4 show a situation in which the propulsion unit 2 is installed on the ground to propel the propelling body 2 in the ground through the guide pipe 1 partially provided in the ground.

The guide tube 1 is made of metal and has an inner diameter larger than the outer diameter of the propelling body 2, and is formed so that the propelling body 2 can be inserted therein and guided in a predetermined direction. A flange-shaped mounting portion 1a for fixing the guide tube 1 to the ground surface is integrally provided on the outer peripheral surface of the guide tube 1, and a mounting tool such as a hole-in anchor is used. By fixing the mounting portion 1a on the ground surface, the guide tube 1 can be stably installed. Further, the propulsion body 2 is configured by providing a propulsion head 8 for boring an underground hole at the tip of a plurality of propulsion pipes that are continuously connected so as to be bendable in the longitudinal direction, and the propulsion head is provided in the inner space. A hose, a cable, and the like for controlling the drive of No. 8 are installed. Therefore, by pushing the propulsion pipe 7 and the propulsion head 8 connected in the longitudinal direction from the propulsion equipment A on the ground through the guide pipe 1, the tip portion of the propulsion body 2 passes through the guide pipe 1 and the proper propulsion direction is obtained. It is possible to carry out underground propulsion in the state of being directed to.

Next, the propulsion equipment A will be described. A horizontal winding drum 9 around which the propulsion body 2 can be wound is provided, and the propulsion body 2 wound out from the winding drum 9 around which the propulsion body 2 is wound. The propulsion device 10 is provided so that it can be grasped and pushed into the ground. The winding drum 9 and the propulsion device 10 are separately mounted on crawlers 11a and 11b, which are examples of self-propelled devices.

The crawler 11 a of the take-up drum 9 is rubbed against the first hydraulic unit 12 for rotating and moving the tip of the propulsion head 8 in and out, and the soil caused by the propulsion of the propulsion body 2. A lubricant unit 13 capable of agitating and feeding a lubricant for reducing the amount is mounted. The crawler 11b of the propulsion device 10 is provided with a second hydraulic unit 14 for holding and moving in / out the propulsion body 2 of the propulsion device 10, and is used for unwinding or winding operation of the winding drum 9. Further, a centralized operation device 17 capable of controlling the driving operation of the propulsion device 10 is mounted. Further, between the crawlers 11, there are provided a cable 18 for electrically connecting the drive part of the winding drum 9 and the centralized operation device 17, and a propelling body 2 unwound from the winding drum 9. It is arranged in a stretched state. Therefore, even in the case of propulsion work on a complex-shaped site, the winding drum 9 and the propulsion device 10 can be freely moved to positions suitable for the site environment by the respective crawlers 11a and 11b. Therefore, the machine can be easily arranged, and after the machine is set, the centralized operation device 17 mounted on the crawler 11b of the propulsion device 10 confirms the propulsion state of the propulsion device 10 while promoting the propulsion. The propelling body 2 can be unwound from the winding drum 9 by one operator in synchronization with the cycle. In addition, since the hydraulic units 12 and 14 are separately mounted for both crawlers 11a and 11b, it is not necessary to connect the hydraulic hoses between the crawlers 11 each time the equipment is installed, and there is no oil leak. Can be prevented and the time required for preparation work can be shortened.

Explaining the propulsion device 10, as shown in FIGS. 5 and 6, a holding member 19 capable of holding the propulsion body 2 is provided, and a longitudinal direction of the propulsion pipe 7 a in a state of being held by the holding member 19. A propulsion device main body 20 which is an example of a device main body that drives the holding member 19 to move back and forth along the base is provided, and a base device 22 provided with a direction adjusting mechanism 21 capable of adjusting the direction of the propulsion device main body 20 is provided. Configured.

The propulsion unit main body 20 is provided with a flat plate-shaped substrate 23, and a pair of propulsion cylinders 24 that are movable back and forth while supporting both sides of the holding member 19 are provided on the substrate 23. Configured. The propulsion cylinder 24 is formed of a cylinder body 24a to which the holding member 19 is attached, and a cylinder rod 24b which pierces and supports the cylinder body 24a in a forward and backward drive state. A pair of binder supporting brackets 25 is provided at the front and rear ends, respectively, and both ends of the cylinder rod 24b are fixed over the pair of front and rear propelling cylinder supporting brackets 25. Each of the propulsion cylinder supporting brackets 25 is provided with a separate lifting supported portion 27 to which a lifting hook for lifting the propulsion device 10 can be attached and detached, and each of the left and right thrust cylinder supporting brackets 25a of the front end portion is supported. The support portion 27 is provided with a length adjusting rod 28 capable of adjusting the vertical position of the front and rear supported portions 27. The length adjusting rod 28 has locking portions 28a and 28b separately provided on both ends thereof, and one locking portion 28a is provided on each of the supported portions 27 of the front end side both propelling cylinder supporting brackets 25a. The other locking portion 28b is supported by the rod locking portion 23a provided on the substrate 23. Further, one of the rear end portions of the propelling cylinder supporting bracket 25b is provided with a hydraulic hose for driving the propulsion cylinder 24 and a hydraulic hose for driving a clamp cylinder 36 provided in a pinching member 19 described later. Is provided with a through hole H through which a cable connector electrically connected to the stroke detection sensor of the propulsion cylinder 24 is attached to the base end of the other cylinder support bracket 25b at the rear end. There is.

The base device 22 is provided with a base portion 29 on which the substrate 23 is mounted and is detachably attached, and the base portion 29 and the propulsion unit main body 20 installed on the base portion 29 are oriented in the vertical direction. Further, a direction adjusting mechanism 21 for swingably adjusting is provided. A guide pipe mounting bracket 30 for connecting one end of the guide pipe 1 is provided at the front end of the base portion 29. The direction adjusting mechanism 21 includes a pivotal connecting portion 29a that pivotally supports the base 29 with respect to the crawler 11b, and a direction adjustment provided from the base 29 to the crawler 11b. It is made up of a hydraulic cylinder 31 for use, and by expanding and contracting the hydraulic cylinder 31, it becomes possible to swing the base portion 29 and the propulsion unit main body 20 above it about the pivotal support portion 29a. The direction of the propulsion unit main body 20 can be adjusted.

Next, the connection state between the base device 22 and the propulsion device main body 20 will be described. The propulsion device main body 20 is mounted on the guide tube mounting bracket 30 of the base 29 of the propulsion device main body 20. The propelling cylinder supporting bracket 25a is placed on the above-mentioned base part 29 in a state of being fitted together, and the guide pipe mounting bracket 30 and the propelling cylinder supporting bracket 25a are connected via a connecting member 32 to a bolt 33a. , 33b are detachably connected. Further, as an auxiliary connection, the substrate 23 is joined to the base portion 29 by bolts 33c. Therefore, as shown in the figure, the propulsion device main body 20 can be easily removed from the base device 22 simply by removing the bolts 33b and 33c from the state where the propulsion device main body 20 is inclined and the propulsion device 10 can be propelled on the ground. It becomes possible to simply separate, and it becomes possible to carry out pit propulsion in which the separated propulsion unit main body 20 is set in the pit in the ground as it is, and the propulsion body 2 is sandwiched and propelled in the horizontal direction. Further, when separating the propulsion device main body 20 from the base device 22, the supported portion 27 provided on the propulsion cylinder supporting bracket 25b at the rear end of the propulsion device main body 20 and the cylinder supporting bracket 25a at the front end are separated. It is possible to separate the propelling machine main body 20 without changing its posture by hooking the hanging hooks to the locking portions 28b at the upper ends of the locked rods and lifting them up. 20 can be prevented from skidding.

Next, the details of the holding member 19 will be described. As shown in FIGS. 1 and 2, the holding member 19 is divided into upper and lower halves, and an upper holding member 19a corresponding to an upper dividing member and a lower dividing member. And a lower holding member 19b corresponding thereto. Both sides of the lower holding member 19b are separately attached to the pair of cylinder bodies 24a, and are formed so as to be movable back and forth together with the cylinder body 24a. The upper holding member 19a is detachably bolted to the lower holding member 19b. The upper and lower clamping members 19a and 19b are provided with respective concave portions 34a and 34b which face each other in a combined state, and are formed so that the propulsion pipe 7 can be arranged between the concave portions 34. is there. A plurality of chuck pieces 35, which are in contact with the outer peripheral surface of the propulsion tube 7 and can be sandwiched therebetween, are arranged in the respective concave portions 34, and chuck pieces 35a arranged in the concave portions 34a of the upper clamping member 19a. Are fixed to the upper clamping member 19a by bolts. Further, the chuck piece 35b located in the recess 34b of the lower holding member 19b is arranged so as to be able to extend and retract in the radial direction with respect to the propulsion pipe 7 in the state of being arranged between the both holding members 19. Further, a clamp cylinder 36 is attached to the lower holding member 19b so that the chuck piece 35b is driven to move in and out in the radial direction of the propulsion pipe 7 and can be switched between a holding state and a non-holding state with respect to the propulsion pipe 7. is there. The clamp cylinder 36 is connected to the second hydraulic unit 14 by a hydraulic hose so that the clamp cylinder 36 can be driven to move in and out by the hydraulic pressure from the second hydraulic unit 14. The hydraulic hose for driving the clamp cylinder 36 and the hydraulic hose for driving the propulsion cylinder 24 have an insertion hole H formed at the base end portion of one of the rear end portions of the cylinder supporting bracket 25b. In addition, it is inserted so that it can be moved back and forth.

According to the propulsion device 10 of the present embodiment, the propulsion tube 7 is placed in the recess 34b of the lower clamping member 19b with the upper clamping member 19a removed, and the upper clamping member 19a is covered from above. By joining the two clamping members 34 together and then projecting the clamp cylinder 35 toward the thrust tube 7, it becomes possible to clamp and fix the propulsion tube 7 by each chuck piece 35, and the upper clamping member 19a is lighter in weight. With the improvement in handling and handling, the propelling pipe 7 can be set efficiently, and even if the propelling cylinder 24 is driven back and forth and propelled in that state, the clamp cylinder 36 and the propelling cylinder 24 Each drive hydraulic hose connected to is movable from the space S between the propulsion cylinder 24 and the base plate 23 back and forth through the insertion hole H. Since the hydraulic hose extends rearward, the hydraulic hose does not meander in the space S and protrude from the propulsion device body 20 to hinder the work, or the work can be efficiently performed without being caught and damaged. Become.

[Other Embodiment] Another embodiment will be described below.

<1> The holding member 19 is not limited to the upper and lower separate body structure described in the above embodiment, and is joined to the side by a hinge so as to be swingable. It is sufficient that the lower holding member 19b is provided with the clamp cylinder 35, and these are collectively referred to as a holding member. <2> The insertion hole H is not limited to the one provided on one of the rear end propulsion cylinder supporting brackets 25b described in the previous embodiment, and may be, for example, both left and right propulsion cylinders. It may be provided on each of the supporting brackets 25b and 25b. Further, the propulsion cylinder supporting bracket 25a at the front end may be provided with the insertion hole H.

In the claims for utility model registration, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a rear sectional view showing a propulsion device according to an embodiment.

FIG. 2 is a front view of the propulsion device according to the embodiment when viewed from the front.

FIG. 3 is a side view showing the propulsion equipment of the embodiment.

FIG. 4 is a plan view showing the propulsion equipment of the embodiment.

FIG. 5 is a vertical sectional view showing a propulsion device according to an embodiment.

FIG. 6 is a top view showing the propulsion device of the embodiment.

FIG. 7 is a partially cutaway front view showing a conventional propulsion device.

[Explanation of symbols]

 7 Propulsion Pipe 19 Clamping Member 19a Upper Dividing Member 19b Lower Dividing Member 20 Device Main Body 24 Propulsion Cylinder 25 Propulsion Cylinder Support Bracket 36 Clamp Cylinder H Insertion Hole

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Kazunori Tsujimoto 1-1-1, Hama, Amagasaki-shi, Hyogo Inside Kubota Technology Development Laboratory Co., Ltd. (72) Yukishige Yamada 1-1-1 Hama, Amagasaki-shi, Hyogo Kubota Technology Development Laboratory

Claims (1)

[Scope of utility model registration request] 1. A sandwiching member (1) divided into upper and lower parts capable of sandwiching a propulsion pipe (7) which is continuously bent so as to be bendable in the longitudinal direction.
9) is provided, and the sandwiching member (1) is provided along the longitudinal direction of the propulsion pipe (7) sandwiched by the sandwiching member (19).
A propulsion pipe (7) in which a propulsion cylinder (24) for driving and driving 9) back and forth is provided on the apparatus main body (20) and is arranged between the split members (19a) and (19b) of the holding member (19). Is a propulsion device provided with a clamp cylinder (36) that can be switched in and out in the radial direction to switch between a sandwiched state and a non-sandwiched state, and a split member (19b) below the sandwiching member (19). ), The clamp cylinder (36) is attached to the bracket, and a propelling cylinder mounting bracket (2) provided on the apparatus body (20) is attached.
A propulsion device having a through hole (H) at the proximal end of 5), through which the hydraulic hose for driving the clamp cylinder (36) can be inserted in the front-rear direction.