CN212137149U

CN212137149U - Electric box of underwater welding robot

Info

Publication number: CN212137149U
Application number: CN202021170270.4U
Authority: CN
Inventors: 赵亮; 刘继忠; 丰俊奇
Original assignee: Harbin Institute of Technology Robot Nanchang Intelligent Manufacturing Research Institute
Current assignee: Harbin Institute of Technology Robot Nanchang Intelligent Manufacturing Research Institute
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2020-12-11
Anticipated expiration: 2030-06-22

Abstract

The utility model discloses an electric box of welding robot under water, the electric box is fixed in the upper portion of the mechanism of crawling of welding robot under water, the electric box includes bottom of the case board and last box, the bottom of going up the box is provided with flange, be provided with sealed the pad between flange and the bottom of the case board, through connecting bolt fixed connection between flange and the bottom of the case board, this connecting bolt links to each other flange, bottom of the case board and the mechanism three of crawling, be provided with pencil escape hole on the electric box, install the sealed fixed knot of pencil on the pencil escape hole and construct. The electric box has higher sealing performance between the wiring harness and the upper box body.

Description

Electric box of underwater welding robot

Technical Field

The utility model relates to an electric box for on the welding robot under water, be used for installing the control panel such as electronic components such as control panel of control robot walking and action in the electric box.

Background

In recent years, due to the development of maintenance and ocean engineering of large ships, underwater drilling platforms and the like, an underwater welding technology is urgently needed, and the development of underwater welding robots is proposed to meet the requirement. Underwater welding is different from land welding and has the particularity of working environment. Aiming at the particularity of the underwater environment, a series of measures must be taken, the welding operation is carried out under the water, good sealing performance needs to be guaranteed, and the control element is prevented from being soaked in the water. However, the sealing performance of the electric box of the existing underwater welding robot is not reliable, and particularly, a wire harness extending out of the box possibly has the phenomenon of water seepage.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: provided is an electrical box of an underwater welding robot with better sealing performance.

In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides an electric box of welding robot under water, the electric box is fixed in the upper portion of the mechanism of crawling of welding robot under water, the electric box includes bottom of the case board and last box, the bottom of going up the box is provided with flange, be provided with sealed the pad between flange and the bottom of the case board, through connecting bolt fixed connection between flange and the bottom of the case board, this connecting bolt links to each other flange, bottom of the case board and the mechanism three of crawling, be provided with pencil escape hole on the electric box, install the sealed fixed knot of pencil on the pencil escape hole and construct.

Preferably, the wire harness outlet and the wire harness sealing and fixing structure are arranged at the top of the upper box body.

As a preferred scheme, the wire harness sealing and fixing structure comprises a double-head thread sleeve, one end of the double-head thread sleeve is installed in a wire harness leading-out hole in a threaded manner, a sealing rubber sleeve is installed in an inner hole of the double-head thread sleeve, a wire pressing sleeve is installed at the other end of the double-head thread sleeve in a threaded manner, and the wire harness penetrates through and extends out of an inner hole of the sealing rubber sleeve and an inner hole of the wire pressing sleeve.

As a preferred scheme, the wire harness outlet hole includes a small-diameter hole section and a large-diameter hole section, the large-diameter hole section is located on the outer side of the small-diameter hole section and provided with an internal thread, a first seal ring is arranged on a step at the bottom of the large-diameter hole section, and one end of the double-head thread insert is installed on the large-diameter hole section and extrudes the first seal ring.

As a preferable scheme, a second sealing ring is further arranged on the hole wall of the small-diameter hole section, and the second sealing ring is used for sealing and matching the wiring harness with the small-diameter hole section.

As a preferred scheme, sealed gum cover includes the gum cover body and is located the flange edge of gum cover body outside end, the flange edge is thicker from inside to outside thickness gradually.

Preferably, the rubber sleeve body is conical, and the diameter of the upper end of the rubber sleeve body is larger than that of the small section.

After the technical scheme is adopted, the utility model discloses an effect is: because the electric box includes bottom of the case board and last box, the bottom of going up the box is provided with flange, be provided with sealed the pad between flange and the bottom of the case board, through connecting bolt fixed connection between flange and the bottom of the case board, this connecting bolt links to each other flange, bottom of the case board and the mechanism three of crawling, be provided with pencil guide hole on the electric box, install the sealed fixed knot of pencil structure on the pencil guide hole, this electric box's fixed is convenient, and it is sealed good between bottom of the case board and the last box, has still set up pencil seal structure alone on the pencil guide hole simultaneously, and the sealing of pencil is better like this.

And because the wire harness sealing and fixing structure comprises a double-head screw sleeve, one end of the double-head screw sleeve is arranged in the wire harness leading-out hole in a threaded manner, a sealing rubber sleeve is arranged in an inner hole of the double-head screw sleeve, a wire pressing sleeve is arranged at the other end of the double-head screw sleeve in a threaded manner, and the wire harness penetrates and extends out of the inner hole of the sealing rubber sleeve and the inner hole of the wire pressing sleeve. Utilize the line ball cover can extrude sealed gum cover and make it warp, the line ball cover screws up more, and sealed effect is better, therefore whole electric box's sealed effect is better.

And because the wire harness lead-out hole comprises a small-diameter hole section and a large-diameter hole section, the large-diameter hole section is positioned on the outer side of the small-diameter hole section and is provided with an internal thread, the bottom step of the large-diameter hole section is provided with a first sealing ring, one end thread of the double-head thread insert is arranged on the large-diameter hole section and extrudes the first sealing ring, thus, when the double-head thread insert is screwed into the large-diameter hole section, the end part of the double-head thread insert can extrude the sealing ring, the end part of the double-head thread insert and the large-diameter hole section are finally sealed, and the wire harness and the double-head bolt are directly sealed through the sealing rubber sleeve.

And because the hole wall of the small-diameter hole section is also provided with a second sealing ring, the wire harness is in sealing fit with the small-diameter hole section by the second sealing ring, so that the wire harness and the small-diameter hole section can be further sealed.

And because the sealing rubber sleeve comprises a rubber sleeve body and a flange edge positioned at the outer side end of the rubber sleeve body, the flange edge is gradually thicker from inside to outside. The pressing line sleeve extrudes the flange edge, and the pressing line sleeve extrudes the flange edge to contact with the flange edge, so that the sealing rubber sleeve can further extrude the wire harness towards the center, and the extrusion force is larger along with the rotation of the pressing line sleeve, and the sealing effect is better.

And because the rubber sleeve body is tapered, the diameter of the upper end of the rubber sleeve body is larger than that of the small section, so that the closer the rubber sleeve body is to the upper end in the integral extrusion process, the larger the extrusion force with the wire harness is, and the better the sealing effect is.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of an electric box installed on a crawling mechanism of an underwater welding robot according to an embodiment of the present invention;

fig. 2 is a sectional view of the wire harness seal fixing structure;

FIG. 3 is an enlarged schematic view of FIG. 1 at A;

in the drawings: 1. an electric box 1; 11. a small-diameter hole section 11; 12. a large-diameter bore section 12; 13. a bottom plate 13; 14. an upper case 14; 15. a gasket 15; 16. a connecting flange 16; 2. a crawling mechanism 2; 3. a circulating chain 3; 4. a permanent magnet 4; 5. a wire harness sealing and fixing structure 5; 51. a double-ended threaded sleeve 51; 52. a sealant sleeve 52; 521. a gum cover body 521; 522. a flange rim 522; 53. a wire crimping sleeve 53; 54. a first seal ring 54; 55. a second seal ring 55.

Detailed Description

The present invention will be described in further detail with reference to the following examples.

As shown in fig. 1 to 3, an electrical box 1 of an underwater welding robot is fixed on the upper part of a crawling mechanism 2 of the underwater welding robot, the crawling mechanism 2 in the embodiment adopts a crawler-type crawling mechanism 2, and comprises a circulating chain 3, a permanent magnet 4 is installed on the circulating chain 3, and the permanent magnet 4 is adsorbed on the hull of a ship by using the magnetic force of the permanent magnet 4.

The top-bottom direction in this embodiment is determined in the state in fig. 2, and is on the top of the drawing sheet. The electric box 1 includes bottom plate 13 and last box 14, the bottom of going up box 14 is provided with flange 16, be provided with sealed pad 15 between flange 16 and the bottom plate 13, through connecting bolt fixed connection between flange 16 and the bottom plate 13, this connecting bolt links to each other flange 16, bottom plate 13 and the 2 three of mechanism of crawling, be provided with the pencil on the electric box 1 and lead out the hole, install the sealed fixed knot structure 5 of pencil on the pencil leads out the hole.

In this embodiment, the wire harness outlet hole and the wire harness sealing and fixing structure 5 are disposed at the top of the upper case 14. The wire harness sealing and fixing structure 5 comprises a double-head threaded sleeve 51, one end of the double-head threaded sleeve 51 is installed in a wire harness leading-out hole, a sealing rubber sleeve 52 is installed in an inner hole of the double-head threaded sleeve 51, a wire pressing sleeve 53 is installed at the other end of the double-head threaded sleeve 51 in a threaded manner, and a wire harness penetrates through and extends out of the inner hole of the sealing rubber sleeve 52 and the inner hole of the wire pressing sleeve 53.

The wire harness outlet hole comprises a small-diameter hole section 11 and a large-diameter hole section 12, the large-diameter hole section 12 is located on the outer side of the small-diameter hole section 11 and is provided with an internal thread, a first sealing ring 54 is arranged on a step at the bottom of the large-diameter hole section 12, and one end of the double-head thread insert 51 is installed on the large-diameter hole section 12 in a threaded mode and extrudes the first sealing ring 54.

And the hole wall of the small-diameter hole section 11 is also provided with a second sealing ring 55, and the second sealing ring 55 is used for sealing and matching the wiring harness with the small-diameter hole section 11.

The sealing rubber sleeve 52 comprises a rubber sleeve body 521 and a flange edge 522 positioned at the outer side end of the rubber sleeve body 521, and the thickness of the flange edge 522 is gradually thicker from inside to outside. The rubber sleeve body 521 is conical, and the diameter of the upper end of the rubber sleeve body 521 is larger than that of the small section. While the lower surface of the flange 522 is horizontal and the upper surface is inclined.

The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and alterations made to the technical solution of the present invention without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.

Claims

1. The utility model provides an electric box of welding robot under water, the electric box is fixed in the upper portion of the mechanism of crawling of welding robot under water, its characterized in that: the electric box comprises a box bottom plate and an upper box body, a connecting flange is arranged at the bottom of the upper box body, a sealing gasket is arranged between the connecting flange and the box bottom plate, the connecting flange and the box bottom plate are fixedly connected through a connecting bolt, the connecting flange, the box bottom plate and a crawling mechanism are connected through the connecting bolt, a wiring harness leading hole is formed in the electric box, and a wiring harness sealing and fixing structure is installed in the wiring harness leading hole.

2. The electrical box of an underwater welding robot of claim 1, wherein: the wire harness guide-out hole and the wire harness sealing and fixing structure are arranged at the top of the upper box body.

3. The electrical box of an underwater welding robot of claim 2, wherein: the wire harness sealing and fixing structure comprises a double-end screw sleeve, one end of the double-end screw sleeve is installed in a wire harness leading-out hole in a threaded mode, a sealing rubber sleeve is installed in an inner hole of the double-end screw sleeve, a wire pressing sleeve is installed at the other end of the double-end screw sleeve in a threaded mode, and a wire harness penetrates through and extends out of an inner hole of the sealing rubber sleeve and an inner hole of the wire pressing sleeve.

4. The electrical box of an underwater welding robot of claim 3, wherein: the wire harness leading-out hole comprises a small-diameter hole section and a large-diameter hole section, the large-diameter hole section is located on the outer side of the small-diameter hole section and is provided with an internal thread, a first sealing ring is arranged on a step at the bottom of the large-diameter hole section, and one end of the double-head screw sleeve is installed on the large-diameter hole section in a threaded mode and extrudes the first sealing ring.

5. The electrical box of an underwater welding robot of claim 4, wherein: and a second sealing ring is further arranged on the hole wall of the small-diameter hole section, and the wire harness is in sealing fit with the small-diameter hole section through the second sealing ring.

6. The electrical box of an underwater welding robot of claim 5, wherein: the sealing rubber sleeve comprises a rubber sleeve body and a flange edge positioned at the outer side end of the rubber sleeve body, and the flange edge is gradually thicker from inside to outside.

7. The electrical box of an underwater welding robot of claim 6, wherein: the rubber sleeve body is conical, and the diameter of the upper end of the rubber sleeve body is larger than that of the small section.