CN215869833U

CN215869833U - Welded grounding device

Info

Publication number: CN215869833U
Application number: CN202122468516.7U
Authority: CN
Inventors: 罗大林; 于谢天; 黄万; 赵忠凯; 刘金龙; 魏国春; 吝健全; 谢朝光
Original assignee: Zhengzhou Baoye Steel Structure Co ltd; Beris Engineering and Research Corp
Current assignee: Zhengzhou Baoye Steel Structure Co ltd; Beris Engineering and Research Corp
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-02-18
Anticipated expiration: 2031-10-13

Abstract

The utility model relates to a welded grounding device which comprises a roller, a connecting shaft and a wiring terminal for connecting a grounding cable, wherein the connecting shaft is arranged at the first end part of the roller, a first bearing is arranged inside the wiring terminal, a fixing screw penetrates through the first bearing to connect the wiring terminal with the connecting shaft, the first bearing is supported between the wiring terminal and a nut of the fixing screw, the roller rotates to drive the connecting shaft and the fixing screw to rotate, and the wiring terminal does not rotate along with the roller. The technical scheme provided by the utility model is used for solving the problems that the distortion of the wiring cable interferes with the production rhythm and the grounding resistance is large.

Description

Welded grounding device

Technical Field

The utility model belongs to the field of welding, and particularly relates to a welded grounding device.

Background

In present welding shaped steel production field, need set up earthing device and realize welding current ground function, in order to guarantee welding process's stability, roller table transportation formula shaped steel welded earthing device is usually for installing in the frame, wherein install form structure in the frame comparatively simple, nevertheless to weldment removal and welder fixed roller table transportation formula shaped steel welding form, can receive the welding earth connection point relatively far away from the solder joint, install the influence of factors such as various sensors in the equipment rack, make ground resistance relatively large, the super long shaped steel welding of adaptation that can not be stable, frame temperature is higher among the welding process, there is the risk of burning the sensor in the frame, can influence shaped steel welding effect and quality.

The technical problem that the technical personnel in the field hope to solve is to adapt to and meet the roller way transportation type section steel welding production, ensure that the quality effect of the section steel welding seam meets the standard and standard requirements, not interfere the production rhythm and reduce the grounding resistance.

SUMMERY OF THE UTILITY MODEL

In order to solve all or part of the problems, the utility model aims to provide a welded grounding device which can solve the problem of large grounding resistance caused by the fact that a welding grounding wire contact is far away from a welding point.

The utility model provides a welded grounding device which comprises a roller, a connecting shaft and a wiring terminal for connecting a grounding cable, wherein the connecting shaft is arranged at the first end part of the roller, a first bearing is arranged inside the wiring terminal, a fixing screw penetrates through the first bearing to connect the wiring terminal with the connecting shaft, the first bearing is supported between the wiring terminal and a nut of the fixing screw, the roller rotates to drive the connecting shaft and the fixing screw to rotate, and the wiring terminal does not rotate along with the roller.

Further, first tip is provided with first mounting hole along the axis direction, the connecting axle is the step shaft, including first step shaft, second step shaft, third step shaft and the hemisphere that sets gradually, first step shaft with first mounting hole adopts interference fit's mounting means.

Furthermore, the first end portion is provided with a first fixing hole in the axis vertical direction, and the connecting shaft is pressed in the first fixing hole through the first fixing hole by adopting a first pin.

Furthermore, the wiring terminal comprises a concave hemisphere and a wiring board connected with the concave hemisphere, the wiring terminal is spoon-shaped, and the concave hemisphere surface of the concave hemisphere is the same as the hemisphere in curvature and can be fully contacted.

Further, the position of indent hemisphere along horizontal center line is provided with three-layer ladder through-hole, first ladder through-hole, second ladder through-hole and the third ladder through-hole that reduce in proper order and set up with one heart including the aperture, arrange in the second ladder through-hole first bearing and elastomeric element, first bearing is close to first ladder through-hole sets up, elastomeric element is close to third ladder through-hole sets up, the aperture of second ladder through-hole with the external diameter looks adaptation of first bearing.

Furthermore, a threaded hole in the horizontal direction is formed in the outer end face of the hemisphere, the fixing screw penetrates through the first bearing and the elastic component in the first stepped through hole and the second stepped through hole in sequence, and the third stepped through hole is fixed in the threaded hole, and the fixing screw applies pretightening force to the elastic component, so that the wiring terminal is in full contact with the connecting shaft and keeps pressure.

Further, the elastic component adopts a disc spring group.

Furthermore, a second fixing hole is formed in the second step shaft in the axis vertical direction, and the fixing screw is tightly pressed in the threaded hole through the second fixing hole by adopting a second pin.

The roller bearing device further comprises a rack, two sets of second bearings are arranged on the rack, the rollers are mounted on the second bearings, and the rollers rotate along the axis direction of the second bearings.

Furthermore, the connecting shaft and the wiring terminal are made of copper materials; the wiring terminal is integrated.

The welded grounding device of the utility model has the following advantages:

(1) be connected through connecting axle, set screw and first bearing between roller and the binding post, can be so that form the roller between roller and the binding post and rotate, binding post can not follow the rotation, consequently can not make the ground cable on the binding post along with the roller rotates to can not disturb the production rhythm because of the ground cable distortion.

(2) The roller type grounding device has the characteristics of simple structure, small grounding resistance and convenience in maintenance, particularly, current is transmitted to a grounding cable through the connecting shaft and the wiring terminal by the roller, and the grounding resistance can be effectively reduced due to the fact that all parts are in full contact.

Drawings

Fig. 1 is a schematic structural diagram of a grounding device in an embodiment of the present invention;

fig. 2 is a partially enlarged view of the grounding device in the embodiment of the present invention.

Description of reference numerals: a roller 1; a first mounting hole 11; a first fixing hole 12; a first pin 13; a connecting shaft 2; a first stepped shaft 21; a second stepped shaft 22; a second fixing hole 221; a second pin 222; the third stepped shaft 23; a hemisphere 24; a threaded hole 25; a wiring terminal 3; a concave hemisphere 31; a wiring board 32; a first stepped through hole 33; a second stepped through hole 34; a third stepped through hole 35; an elastic member 36; a first bearing 37; a set screw 4; a frame 5; a second bearing 6; section steel 7; a welding gun 8; a ground cable 9;

Detailed Description

For a better understanding of the objects, structure and function of the utility model, a welded grounding device of the present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a welded grounding device according to an embodiment of the present invention. This welded earthing device, including roller 1, still include connecting axle 2 and the binding post 3 that is used for connecting earth cable 9, the first end at roller 1 is installed to connecting axle 2, binding post 3's inside is provided with first bearing 37, set screw 4 passes first bearing 37 and is connected binding post 3 and connecting axle 2, first bearing 37 supports between binding post 3 and set screw 4's nut, roller 1 rotates and drives connecting axle 2 and set screw 4 and rotate, binding post 3 does not follow the rotation.

Further, the roller 1 is connected with the wiring terminal 3 through the connecting shaft 2, the fixing screw 4 and the first bearing 37, because the first bearing 37 is arranged inside the wiring terminal 3, when the roller 1 rotates, the roller 1 drives the connecting shaft 2 and the fixing screw 4 to rotate, and the fixing screw 4 passes through the first bearing 37, so that the wiring terminal 3 is in rotational contact with the fixing screw 4, the wiring terminal 3 cannot rotate along with the rotation of the roller 1, and the grounding cable 9 connected to the wiring terminal 3 cannot rotate along with the rotation of the roller 1, so that the production rhythm cannot be disturbed due to the twisting of the grounding cable 9; the grounding cable 9 is connected with the roller 1, so that the grounding resistance is low, and the sensor on the frame 5 cannot be influenced by the resistance problem; still have simple structure, ground resistance is less and the characteristics of being convenient for maintain, specifically speaking, the electric current is transmitted to earthing cable 9 through connecting axle 2 and binding post 3 by the roller, because each part contact is abundant, can effectual ground resistance reduction to the electric current circulation process can not pass through frame 5, consequently can not influence the sensor of installing on frame 5.

In this embodiment, the first end portion is provided with the first mounting hole 11 along the axis direction, the connecting shaft 2 is a stepped shaft, and includes a first stepped shaft 21, a second stepped shaft 22, a third stepped shaft 23 and a hemisphere 24 that are sequentially arranged, and the first stepped shaft 21 and the first mounting hole 11 adopt an interference fit mounting manner.

Further, a first mounting hole 11 with a preset depth is formed in the side end of the first end, the length of the first stepped shaft 21 is matched with the depth of the first mounting hole 11, and the first stepped shaft 21 and the first mounting hole 11 are in interference fit, so that the shafts and the holes are in the tightest fit state, and are not easy to separate in the using process.

In this embodiment, the first end portion is provided with a first fixing hole 12 along the axis vertical direction, and the connecting shaft 2 is pressed in the first fixing hole 12 through the first fixing hole 12 by using a first pin 13.

Further, two first fixing holes 12 are formed in the first mounting hole 11 in the axis-perpendicular direction, a first pin 13 is inserted into each first fixing hole 12, and the first step shaft 21 is further fixed in the first mounting hole 11, so that the connecting shaft 2 and the roller 1 are prevented from falling off and separating or rotating relatively in the use process.

In this embodiment, the connection terminal 3 is composed of a concave hemisphere 31 and a connection board 32 connected with the concave hemisphere, the connection terminal 3 is in a spoon shape, and the concave hemisphere surface of the concave hemisphere 31 has the same curvature as that of the hemisphere 24, so that the concave hemisphere surface and the hemisphere 24 can be in full contact.

Further, the wiring board 32 is vertically arranged relative to the axis of the stepped through hole, the wiring board 32 is used for connecting the grounding cable 9, and the grounding cable 9 cannot rotate along with the roller 1 when the roller rotates; the concave hemisphere 31 is divided into a concave hemisphere and a convex hemisphere, the concave hemisphere is in contact with the outer end face of the hemisphere 24, and the concave hemisphere can be in full contact with the outer end face of the hemisphere due to the same curvature, but the hemisphere 24 cannot drive the concave hemisphere 31 to rotate in the rotating process.

As shown in fig. 2, in this embodiment, three stepped through holes are disposed at a position of the concave hemisphere 31 along a horizontal center line, including a first stepped through hole 33, a second stepped through hole 34 and a third stepped through hole 35, which are sequentially reduced in aperture and concentrically disposed, a first bearing 37 and an elastic component 36 are disposed in the second stepped through hole 34, the first bearing 37 is disposed near the first stepped through hole 33, the elastic component 36 is disposed near the third stepped through hole 35, and the aperture of the second stepped through hole 34 is adapted to the outer diameter of the first bearing 37.

Further, the stepped through hole penetrates from the outer concave hemispherical surface to the inner concave hemispherical surface, the first stepped through hole 33, the second stepped through hole 34 and the third stepped through hole 35 are sequentially reduced, and a first bearing 37 and an elastic component 36 are conveniently arranged at the second stepped through hole 34.

As shown in fig. 2, in the present embodiment, a threaded hole 25 is provided on the outer end surface of the hemisphere 24 in the horizontal direction, the fixing screw 4 passes through the first bearing 37 and the elastic member 36 in the first stepped through hole 33 and the second stepped through hole 34 in sequence, and the third stepped through hole 35 is fixed in the threaded hole 25, and the fixing screw 4 applies a preload to the elastic member 36, so that the connection terminal 3 is in sufficient contact with the connection shaft 2 and maintains a pressure.

Further, a threaded hole 25 with a preset depth is formed in the outer end face of the hemisphere 24, and the fixing screw 4 penetrates through the concave hemisphere 31 and is screwed in the threaded hole 25, so that the fixing screw 4 is fixed in the connecting shaft 2; the fixing screw 4 passes through the first bearing 37 and the elastic part 36, and the fixing screw 4 rotates relative to the first bearing 37, so that the fixing screw 4 does not drive the concave hemisphere 31 to rotate when rotating; after the fixing screw 4 is screwed down, pretightening force is applied to the elastic component 36, so that the wiring terminal 3 is in full contact with the connecting shaft 2 and keeps pressure, the wiring terminal is in full contact with the connecting shaft instead of in close contact with the connecting shaft, and the use is not influenced by large friction force in the rotating process.

Preferably, the first bearing 37 is a thrust bearing, so that the fixing screw 4 does not move in the axial direction of the first bearing 37.

In this embodiment, the elastic member 36 is a disc spring assembly.

Further, the disc spring has the characteristics of small required space, long service life and convenience in maintenance and replacement, so that the disc spring is adopted in a narrow space at the second step through hole 34.

In this embodiment, the second stepped shaft 22 is provided with a second fixing hole 221 in the axis-perpendicular direction, and the fixing screw 4 is pressed into the screw hole 25 by a second pin 222 through the second fixing hole 221.

Further, a second fixing hole 221 is formed in the threaded hole 25 in the direction perpendicular to the axis, and a second pin 222 is inserted into the second fixing hole 221 to further fix the fixing screw 4 in the threaded hole 25, so that the connecting shaft 2 and the fixing screw 4 are prevented from falling off and separating or rotating relatively during use.

In the embodiment, the roller device further comprises a rack 5, two sets of second bearings 6 are arranged on the rack 5, the roller 1 is installed on the second bearings 6, and the roller 1 rotates along the axis direction of the second bearings 6.

Further, two sets of second bearings 6 support one roller 1 in common, and the roller 1 rotates in the axial direction of the second bearings 6 for transporting the section steel 7.

In this embodiment, the connecting shaft 2 and the connecting terminal 3 are made of copper materials; the connecting terminal 3 is integrated.

Further, the copper material has the characteristics of small friction force and strong conductivity, so that when the connecting shaft 2 is contacted with the wiring terminal 3, the friction force is reduced, and the conductivity is improved; the wiring terminal 3 adopts an integrated type, and compared with a connection mode, the conductivity of the wiring terminal can be effectively improved.

As shown in fig. 1, the working process of this embodiment:

first, when the section steel 7 to be welded is transported above the roller 1, the roller 1 contacts the section steel 7 to be welded, welding starts, the roller 1 starts rotating, and the section steel 7 to be welded is welded while traveling.

The current is then conducted through the weld joint, through the steel profile 7, to the roll 1.

Then, the roller 1 rotates to drive the connecting shaft 2 to rotate, and the current is conducted to the connecting shaft 3 through the roller 1.

Next, the connection shaft 2 rotates, and the connection terminal 3 does not rotate since the first bearing is provided inside the connection terminal 3, but current is conducted to the connection terminal 3 through the connection shaft 2 since the connection shaft 2 and the connection terminal 3 are sufficiently in contact with each other.

Finally, the current is conducted through the terminal 3 to the grounding cable 9, and grounding continues until welding is completed.

The connecting shaft 2 rotates, and the mechanism abrasion caused by the fact that the connecting terminal 3 does not rotate can be compensated through the pretightening force stroke of the elastic component 36.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a welded earthing device, includes the roller, its characterized in that still includes the connecting axle and is used for connecting earthing cable's binding post, the connecting axle is installed the first end of roller, binding post's inside is provided with first bearing, and set screw passes first bearing will binding post with the connecting axle is connected, first bearing supports binding post with between set screw's the nut, the roller rotates the drive the connecting axle with set screw rotates, binding post does not follow the rotation.

2. The welded grounding device of claim 1, wherein the first end portion is provided with a first mounting hole along an axial direction, the connecting shaft is a stepped shaft and comprises a first stepped shaft, a second stepped shaft, a third stepped shaft and a hemisphere, the first stepped shaft, the second stepped shaft, the third stepped shaft and the hemisphere are sequentially arranged, and the first stepped shaft and the first mounting hole are mounted in an interference fit manner.

3. The welded grounding device of claim 2, wherein the first end portion is provided with a first fixing hole along a vertical direction of the axis, and the connecting shaft is pressed in the first fixing hole by a first pin through the first fixing hole.

4. The welded grounding device of claim 2, wherein the connection terminal is composed of a concave hemisphere and a connection terminal board connected with the concave hemisphere, the connection terminal is in a spoon shape, and the concave hemisphere surface of the concave hemisphere has the same curvature as the hemisphere and can be fully contacted.

5. The welded grounding device according to claim 4, wherein three layers of stepped through holes are arranged in the concave hemisphere along the horizontal center line, and include a first stepped through hole, a second stepped through hole and a third stepped through hole, the diameters of which are sequentially reduced and concentrically arranged, the first bearing and the elastic component are arranged in the second stepped through hole, the first bearing is arranged close to the first stepped through hole, the elastic component is arranged close to the third stepped through hole, and the diameter of the second stepped through hole is matched with the outer diameter of the first bearing.

6. The welded grounding device according to claim 5, wherein a threaded hole is formed in the outer end surface of the hemisphere in the horizontal direction, the fixing screw passes through the first bearing and the elastic member in the first stepped through hole and the second stepped through hole in sequence, and the third stepped through hole is fixed in the threaded hole, and the fixing screw applies a pre-tightening force to the elastic member, so that the connection terminal is in full contact with the connection shaft and maintains a pressure.

7. The welded grounding device of any one of claims 5-6, characterized in that the resilient member is a set of disc springs.

8. The welded grounding device of claim 6, wherein the second step shaft is provided with a second fixing hole along the vertical direction of the axis, and the fixing screw is pressed in the threaded hole by a second pin through the second fixing hole.

9. The welded grounding device of claim 1, further comprising a frame, wherein two sets of second bearings are provided on the frame, the rollers are mounted on the second bearings, and the rollers rotate in the direction of the axis of the second bearings.

10. The welded grounding device of claim 4, wherein the connecting shaft and the connecting terminal are made of copper; the wiring terminal is integrated.