JPH0720394U - Propulsion device for propulsion structure for propulsion method - Google Patents

Abstract

(57) [Summary] [Structure] A pair of holding members 3 and 4 capable of holding the propelling body 2 for the propulsion method, and holding members 3 and 4 in the axial center direction of the propelling body 2 held by the holding members 3 and 4. A propulsion cylinder 24 for driving and moving the propulsion cylinder 24 is provided on a bottom frame via a propulsion cylinder support bracket 25, and a clamp for actuating the clamping member 1 so as to be switchable between a state in which the propulsion body 2 is clamped and a state in which the clamping is released. A cylinder 5 is provided. A cylindrical body 37 through which a hydraulic hose H for driving the clamp cylinder 5 and the like can be inserted,
Propulsion cylinder support bracket 2 for bottom frame 23
5, and is integrally connected to the connecting portion 36 of No. 5 along the axial direction of the propulsion cylinder 24. [Effects] The propulsion cylinder can be stably supported by the propulsion cylinder support bracket for a long period of time and has excellent durability, and the drive hydraulic hose can be smoothly moved back and forth for good workability and effective space on the propulsion device. The connector box can be protected by a tubular body, making it compact and advantageous in terms of maintenance.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is directed to a pair of holding members capable of holding a propelling body for a propulsion method in which a large number of propulsion pipes are flexibly connected, and an axial direction of the propelling body in a state of being held by the pair of holding members. A propulsion cylinder that drives and moves the pair of clamping members is provided on the bottom frame via a propulsion cylinder support bracket for supporting the propulsion cylinder, and the propulsion body is clamped and released. The present invention relates to a propulsion device for a propulsion body for a propulsion method, which is provided with a clamp cylinder for actuating the sandwiching member so that it can be switched to a state.

[0002]

[Prior art]

 Conventionally, in the above-mentioned propulsion device for propulsion method, the propulsion cylinder support bracket has a plate material for mounting the cylinder rod of the propulsion cylinder, which is erected on the substrate, and a reinforcing plate is fixed between them. It was just configured. Then, the board was fixed to the bottom frame of the propulsion device by bolts with the plate material in a posture orthogonal to the cylinder rod. Also, the electric cable for controlling the propulsion cylinder and the hydraulic hose for driving the clamp cylinder extend from the propulsion cylinder or clamp cylinder to the rear of the propulsion device through the space around the propulsion cylinder support bracket, and the rear side of the propulsion device. It was connected to the control unit and hydraulic unit.

[0003]

[Problems to be solved by the device]

 However, according to the above configuration, the propulsion cylinder support bracket fixed to the bottom frame has a configuration in which the plate material for mounting the cylinder rod is erected on a flat plate and the reinforcing plate is fixed between them. In addition, there is a drawback that it is difficult to construct a structure that can sufficiently secure the strength against the stress in the axial direction of the propulsion cylinder generated by the driving of the propulsion cylinder. In addition, the electric cable for controlling the propulsion cylinder and the hydraulic hose for driving the clamp cylinder extend from the propulsion cylinder or clamp cylinder to the rear of the propulsion device through the space around the propulsion cylinder support bracket, and Since it was connected to the control unit and hydraulic unit on the rear side of the device, the electric cable for control and the hydraulic hose for drive were propelled when the clamping member and the clamp cylinder moved back and forth as the propelling cylinder was driven. There were cases where it was difficult to smoothly move them back and forth due to being caught on the cylinder support bracket or other members and rubbing those members. The object of the present invention is to eliminate the above-mentioned conventional drawbacks and to provide a structure that can sufficiently secure the strength against the stress in the axial center direction of the propulsion cylinder generated by the drive of the propulsion cylinder. The hydraulic hose for driving and the electric cable for control It is an object of the present invention to provide a propulsion device for a propulsion body for a propulsion method, which can smoothly move back and forth.

[0004]

[Means for Solving the Problems]

 In order to achieve this purpose, the propulsion device for propulsion method according to the present invention is characterized by the construction of a cylindrical body through which an electric cable for controlling the propulsion cylinder and a hydraulic hose for driving the clamp cylinder can be inserted. The propulsion cylinder support bracket is integrally connected to the frame along the axial direction of the propulsion cylinder, and the operation and effect thereof are as follows.

[0005]

[Action]

 That is, the above-mentioned tubular body is integrally connected to the connecting portion of the propelling cylinder support bracket to the bottom frame, and this tubular body is arranged along the axial center of the propulsion cylinder. Acts like a rib for the propulsion cylinder support bracket, so that the propulsion cylinder support bracket and the structure around the propulsion cylinder support bracket have a structure that is strong against the stress in the axial direction of the propulsion cylinder caused by driving the propulsion cylinder. The propulsion cylinder can be stably supported by the propulsion cylinder support bracket for a long period of time. If the hydraulic hose for driving the clamp cylinder is inserted through the tubular body, the tubular body is driven by the hydraulic hose when the clamp cylinder reciprocates back and forth together with the holding member by the driving force of the propulsion cylinder. Can be used as a guide for smoothly moving the drive hydraulic hose. In addition, for example, if the connector box connected to the electric cable for controlling the propulsion cylinder is housed in the tubular body, the space above the propulsion device can be effectively used and the connector box can be protected by the tubular body. it can.

[0006]

[Effect of device]

 Therefore, since the propulsion cylinder can be stably supported by the propulsion cylinder support bracket for a long period of time, it has excellent durability.When the hydraulic hose for driving the clamp cylinder is inserted through the tubular body, Workability is good because the hydraulic hose can be moved back and forth smoothly, and when the connector box connected to the electric cable for controlling the propulsion cylinder is housed in a tubular body, the space above the propulsion device can be used effectively. In addition, since the connector box can be protected by the tubular body, it was possible to provide a propulsion device for a propulsion body that is compact and advantageous for maintenance.

[0007]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. 7 and 8, the propulsion equipment A installed on the ground is used to propel the propelling body 2 for the propulsion method (hereinafter referred to as propulsion body 2) through the underground guide pipe 1 provided in the ground. The state is shown.

The underground guide tube 1 is made of metal, and a brim-shaped mounting portion 1 a for fixing the underground guide tube 1 to the ground surface is integrally provided on the outer peripheral surface of the underground guide tube 1. The mounting portion 1a is fixed to the ground surface by a mounting tool such as a car, so that the underground guide tube 1 can be stably installed.

The propulsion body 2 is configured by providing a propulsion head 8 for boring an underground hole at the tip of a large number of propulsion pipes 7 which are flexibly connected in the longitudinal direction, and the propulsion head 8 is provided in the inner space. The hose, cable, etc. for controlling the drive of No. 8 are installed.

Explaining the propulsion equipment A, a take-up drum 9 around which the propulsion body 2 can be wound, a first hydraulic unit 12 for rotationally driving the propulsion head 8, and a lubricant are supplied into the propulsion body 2. The lubricant supplying unit 13 is mounted on the first crawler traveling device 11a to form the winding device traveling vehicle 33A, and the propelling body 2 fed out from the winding drum 9 is sandwiched and pushed into the ground. The device 10, the second hydraulic unit 14 for holding the propelling body 2 in the propulsion device 10, and the operation panel 17 for driving the propulsion device 10 are mounted on the second crawler traveling device 11b. The propelling body feeding traveling vehicle 33B, and thus the propulsion equipment A.

As shown in FIG. 3, FIG. 4, FIG. 5, and FIG. 6, the propulsion device 10 is provided with a holding part 19 that can hold the propelling body 2, and the holding part 19 is provided in the holding part 19. The propulsion unit 20 including a propulsion unit main body 20B that movably supports the propulsion unit 2 clamped in the clamping unit 19 in the axial direction of the propulsion unit 2 and a machine base 22 that supports the propulsion unit 20 are provided. A connecting bracket 30 which is formed separately from the machine base 22 and includes a connecting portion 34 for detachably connecting the front end portion of the propulsion device 20 and a guide pipe mounting portion 35 to which the guide pipe 1 is detachable is attached. A direction adjusting mechanism 21 is provided upright at the front end of the table 22 and supports the machine table 22 so that the direction of the propulsion machine 20 can be adjusted up and down.

The holding portion 19 of the propulsion device 20 includes an upper holding member 3 and a lower holding member 4. As shown in FIG. 2, the sandwiching members 3 and 4 are formed by connecting flanges 3B and 4B to both widthwise ends of the semi-cylindrical members 3A and 4A. The flanges 3B and 4B at both ends in the width direction are bolted to each other so that a thrust body insertion space S is formed between the semi-cylindrical members 3A and 4A. In the lower clamping member 4, a clamp claw 15 for clamping the propulsion body 2 in cooperation with the upper clamping member 3 is clamped to the propulsion body 2 and a state where the clamping is released. It is provided so that it can be switched to and away from the propulsion body 2 side. A clamp cylinder 5 is provided on the rear surface of the lower holding member 4 for activating the clamp claw 15 between the holding state and the released state.

The propulsion device main body 20B of the propulsion device 20 is provided with a pair of propulsion cylinders 24, which are movably supported in the front-rear direction in a state where both sides of the holding part 19 are separately attached, on the bottom frame 23. Configured. The pair of propulsion cylinders 24 are arranged on the bottom frame 23 in parallel with each other along the longitudinal direction, and a pair of propulsion cylinder support brackets 25 (hereinafter referred to as support brackets) are installed upright at the front and rear ends of the bottom frame 23. 25), the front and rear ends of both propulsion cylinders 24 are separately supported. As shown in FIG. 1, the support bracket 25 is formed by welding and fixing a plurality of plate members, and the cylinder rod 24A of the propulsion cylinder 24 is fitted in the central portion of one plate member in the vertical direction. A cylindrical boss 39 for connecting the two is fixed by welding. The pair of support brackets 25 on the front end side of the bottom frame 23 are arranged such that the end surface on the side of the connecting bracket 30 is substantially flush with the end surface of the front end of the bottom frame 23 in plan view. Each of the pair of support brackets 25 is formed with a female screw portion 25A for connecting the connecting bracket 30. Further, below the cylindrical boss 39 at the connecting portion 36 of each of the pair of support brackets 25 at the rear end portion with respect to the bottom frame 23, below the cylindrical boss 39, a hydraulic hose H for driving the clamp cylinder 5 and an electric control for the propulsion cylinder 24 are provided. Cylindrical bodies 37 through which the cables C can be inserted are integrally provided along the axial direction of the propulsion cylinder 24. In this embodiment, as shown in FIG. 2, the driving hydraulic hose H of the clamp cylinder 5 is inserted through one cylindrical body 37, and the stroke detection sensor of the propulsion cylinder 24 is inserted into the other cylindrical body 37. A connector box 38 electrically connected is housed.

The connecting portion 34 of the connecting bracket 30 forms an abutting portion 34A for abutting both the support brackets 25 on the front end side on both sides in the width direction of the connecting bracket 30, and at the abutting portion 34A. It is configured by forming a bolt insertion hole 34B. Further, the guide pipe mounting portion 35 of the connecting bracket 30 is configured by attaching a guide pipe adapter 35A to the central portion in the width direction of the front end portion of the connecting bracket 30.

The connection state between the machine base 22 and the propulsion machine 20 will be described. The propulsion machine 20 is placed on the machine base 22, and the connection bracket 30 and the support bracket 25 are detachably connected by the connection bolt B1. is there. Further, as an auxiliary connection, a bottom frame 23 is detachably connected to the machine base 22 by a connecting bolt B2 (see FIG. 6 for the positions of the connecting bolts B1 and B2. Note that FIG. 6 shows the propulsion unit 20). And the machine base 22 are separated).

As shown in FIG. 4, the direction adjusting mechanism 21 pivotally connects the center portion of the machine base 22 in the propulsion direction to the floor plate 16 of the second crawler traveling device 11 b in a vertically swingable manner. And a floor plate 16 are provided with a tilt adjusting hydraulic cylinder 31 capable of adjusting the tilt of the machine base 22 with respect to the floor plate 16.

[Other Embodiments] In the above embodiment, the tubular body 37 is provided below the cylindrical boss 39. However, as shown in FIG. 9, the tubular body 37 is mounted on the cylindrical boss 39. You may arrange in parallel with respect to.

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

[Brief description of drawings]

FIG. 1 is a perspective view of a support bracket of a propulsion device.

FIG. 2 is a front view cross-sectional view of the main part of the propulsion device.

[Fig. 3] Rear view of the propulsion device

FIG. 4 is a side view showing a connected state of the propulsion device.

FIG. 5 is a plan view of the propulsion device.

FIG. 6 is a side view showing a separated state of the propulsion device.

FIG. 7 is a plan view showing propulsion equipment.

FIG. 8 is a side view showing the propulsion equipment.

FIG. 9 is a perspective view of another embodiment.

[Explanation of symbols]

 2 Propulsion body for propulsion method 3,4 Clamping member 5 Clamp cylinder 7 Propulsion tube 19 Clamping part 23 Bottom frame 24 Propulsion cylinder 25 Propulsion cylinder support bracket 36 Connection part 37 Cylindrical body C Electric cable H Hydraulic hose

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Kazunori Tsujimoto 1-1-1, Hama, Amagasaki City, Hyogo Prefecture Kubota Technology Development Laboratory Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A pair of holding members (3), (4) capable of holding a propelling body (2) for a propulsion method, which is formed by flexibly connecting a large number of propulsion pipes (7), and the pair of holding members. (3), (4)
A propulsion cylinder (24) for drivingly moving the pair of clamping members (3), (4) in the axial direction of the propulsion body (2) that is clamped by the propulsion body (2) for supporting the propulsion cylinder (24). Is provided on the bottom frame (23) via the propulsion cylinder support bracket (25) of the above, and the holding member (4) is operated so as to be switchable between a state where the propulsion body (2) is held and a state where the holding is released. A propulsion device for a propulsion method propulsion body provided with a clamp cylinder (5) for controlling, wherein an electric cable (C) for controlling the propulsion cylinder (24) is provided.
And a cylindrical body (37) into which a hydraulic hose (H) for driving the clamp cylinder (5) can be freely inserted, and the propulsion cylinder support bracket (2) with respect to the bottom frame (23).
A propulsion device for a propulsion structure for a propulsion method, which is integrally connected to the connecting portion (36) of 5) along the axial direction of the propulsion cylinder (24).