JP2999629B2 - Manipulator insulation arm for distribution line work - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated arm of a manipulator for distribution line work for performing live wire work and the like.

[0002]

2. Description of the Related Art Since a manipulator comes in contact with a distribution line during construction, a part of an arm or a mechanical member is made of an insulating material such as FRP to insulate the ground, thereby preventing accidents and improving work safety. I'm trying.

[0003]

In the above, the insulation arm may be scratched or dents on the surface due to contact with other facilities or materials, and may cause a decrease in insulation due to the attachment of contaminants. In that case, it took time to repair and replace.

An object of the present invention is to provide an insulated arm for a manipulator for distribution line operation, which protects the insulation arm to enhance the safety of the operation of the distribution line and facilitates maintenance.

[0005]

SUMMARY OF THE INVENTION The present invention, in order to achieve the above object, the convolution of the elastic membrane is fitted under elastic on the outer circumference of A over arm body, an end of the arm body Refueling channel
The connection block has provided, and, among the arm body
A drive insulating rod and a hydraulic hose,
To the drive shaft inside the adjacent arm member via a loose fitting member
Removably concatenated, further, the hydraulic hose and holds by connecting the connecting block one end, through each other a guide fitting portion and the other connecting block provided on the arm member adjacent to the connecting block Take the means of detachable connection.

[0006]

[Effect] Even if the insulating arm comes into contact with other facilities or materials, the elasticity of the annular folds alleviates the contact impact between them, thereby preventing damage.

[0007] Further, an arm adjacent to the arm body from the end of the arm body.
By separating the members, the drive insulation rods
The connecting block of the hydraulic hose is
The annular fold can be detached from the end of the arm body by utilizing its elasticity.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below in detail with reference to the drawings. As shown in FIG. 1, the distribution line working manipulator M enables the hand 1 or another work tool to be attached to a tip contacting the distribution line W or the like, and
The arms 5, 6, and 7 are connected by the joints 2, 3, and 4 to form a left and right pair. Further, the manipulator M
Is mounted on a boom 9 installed in an aerial work vehicle (not shown), together with a cabin 8 containing the operator and a control device (not shown).

In the above, an insulating block 10 is provided at the front end of the first arm 5 on the front side so that the hydraulic motor accommodating chamber 1 is provided.
1 and the hand 1 are insulated from each other. In this embodiment, the second arm 6 is an insulating arm. As shown in FIGS. 2 and 3, this second arm 6
Paragraphs are formed on the outer periphery of a cylindrical arm body 13 made of a reinforced insulating material such as P, and a plurality of disk-shaped projections 12a are continuously provided here with an elastic insulating material such as ethylene-propylene copolymer rubber. An annular fold 12 integrally formed in a cylindrical shape is fitted under elasticity by utilizing its elasticity. further,
A sealing material 14 such as a rubber or heat-shrinkable band or an adhesive tape is wound around the openings at both ends of the annular fold 12 to prevent water from entering the interface.

In the arm body 13, a drive insulating rod 15 made of FRP (two arranged in parallel in the embodiment) is inserted by projecting forward, and one end of the drive insulating rod 15 is locked by a pin 16. The drive shaft 18 is connected to a rear drive rod 18 via a joint 17 and a socket 19 as a loose fitting member fixed to the other end is removably loosely fitted to a front drive shaft 20 with a square drive. The torsion force transmitted through the joint 20 is transmitted to the joint 2 connected to the front.

Reference numeral 21 denotes an insertion guide rod fixedly mounted on the drive shaft 20 with a square drive. A truncated conical guide end 21a is attached to the tip of the insertion guide rod to facilitate insertion into the socket 19 and the drive insulating rod 15. are doing.

A hydraulic hose 22 (two in this embodiment) made of an insulating material is connected to a front connecting block 24 by a joint 23 in parallel with the drive insulating rod 15.
The hydraulic hose 22 is for supplying oil to the hydraulic motor housing chamber 11. The connection blocks 24 are provided with oil supply passages 24a, 24
b, the open ends of the oil supply passages 24a, 24b communicate with the front connection block 26 separately from the oil supply passages 26a, 26b, respectively, to connect the two blocks 24, 26. Reference numeral 25 denotes a blind plug for closing the open ends of the oil supply paths 24a and 24b.

At the tip of one connecting block 24, FIG.
As shown in FIG. 7, a concave portion 24c that opens the oil supply passages 24a and 24b is provided. At the tip of the other connecting block 26, a plug 26c that opens the oil supply passages 26a and 26b is also connected, and the plug 26c and the concave portion 24c are connected.
Constitute a guide fitting portion, and both connecting blocks 24,
26 are detachably connected to each other.

An O-ring 2 is provided on the outer periphery of the plug 26c so as to seal the joint surface with the inner wall of the other recess 24c.
7 is fitted. In the above, the front connection block 26 is fixed to the side wall of the flange 28 which is an adjacent arm member by a bolt 29. A metal connecting pipe 30 is interposed between the flange 28 and the arm body 13, one end of which is connected to the flange 28 by a bolt 31, and the other end of which is fitted into the arm body 13. Arm body 1 by means of bolts 32 inserted from outside
It is connected to 3. Further, the connection block 24 is arranged at the open end of the connection pipe 30 by bolts 33 inserted from the side walls of the connection pipe 30 and is pressed and fixed to the inner surface thereof.

Next, the operation of this embodiment will be described. Even if the insulating arm 6 configured as described above unexpectedly comes into contact with other equipment during the operation of the manipulator M, the cylindrical annular fold 12 fitted on the outer periphery reduces the contact impact due to its elasticity. Prevent mutual damage.

Further, the bolt 31 is loosened and the flange 2
When the front of the arm body 13 is opened by removing the connecting pipe 8 from the connecting pipe 30, the hydraulic hose 22 can be cut off in the arm 6 together with the drive insulating rod 15 connected by loose fitting, so that the annular fold 12 can be replaced at any time. it can.

Further, as shown in FIG. 2, the drive insulating rod 15 and the socket 19 protrude from the end of the arm, and a guide fitting portion between the two connecting blocks 24 and 26 is provided at the open end of the arm. Therefore, reconnection of the arms 5 and 6 becomes easy.

[0018]

According to the present invention, the adjacent arm member is separated from the end of the arm body of the manipulator for distribution line work.
The hydraulic hose together with the loosely fitted drive insulating rod
Separate the connecting block of
In addition , the elastic arm protects the insulating arm with an annular fold, and the annular fold is made detachable, improving the safety of distribution line work and simplifying manipulator maintenance. is there.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a distribution line working manipulator according to an embodiment of the present invention.

FIG. 2 is a partial sectional view showing an embodiment of the present invention.

FIG. 3 is a sectional view showing an AA direction of FIG. 2;

FIG. 4 is a partial cross-sectional view showing the embodiment.

[Explanation of symbols]

6 ... insulating arm, 12 ... annular fold, 13 ... arm body,
15: drive insulating rod, 19: socket as a loose fitting member,
22 ... hydraulic hose, 24, 26 ... connecting block, 24
a, 24b: oil supply passage, 24c: concave portion as guide fitting portion, 26a, 26b: oil supply passage, 26c: plug body as guide fitting portion, 28: flange as arm member, 30 ...
Connecting pipe, M: manipulator for distribution line work, W: distribution line

Continued on the front page (72) Inventor Shoji Yokoi 1-23-1, Nabekata, Shinkawa-cho, Nishi-Kasugai-gun, Aichi Prefecture (56) References Japanese Utility Model Sho-62-135509 (JP, U) Japanese Utility Model Sho-63-51509 (JP, U) ) JP-A-4-70492 (JP, U) JP-A-3-29286 (JP, U) JP50-32931 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) H02G 1/02 B25J 1/00-19/00

Claims (1)

(57) [Claims] 1. A fitted under elastic annular folds of resilient quality to the outer periphery of A over arm body, having a supply passage to an end of the arm body
And a connecting block provided inside the arm body.
A drive insulating rod and a hydraulic hose are provided, and the drive insulating rod is
Detachable to the drive shaft inside the contacting arm member through the loose fitting member
Freely concatenated, further, with the hydraulic hose held by connecting the connection block and one end and the other connecting block provided on the arm member adjacent to the connecting block
An insulating arm for a distribution line working manipulator, wherein the arm is detachably connected to each other via a guide fitting portion.