Ohm card manufacturing tool

Abstract

The utility model provides an ohm card manufacturing tool which comprises a bearing, an inner ring of the bearing is fixedly connected with a base station, a bending shaft coaxial with the bearing is arranged on the inner ring, a clamping groove is formed in the bending shaft, a force arm is fixedly arranged on an outer ring of the bearing along the radial axis, a bending part is arranged on the force arm, and the bending part is fixedly connected with the bearing. A nut flush with the bending shaft is arranged on the base table, and an adjusting bolt is in threaded connection with the interior of the nut along the radial axis. The tool is simple in overall structure and low in manufacturing cost, when the tool is used in a construction site, the Ohm card can be rapidly manufactured by one flat steel strip through two times of straight part bending and one time of overall radian bending, compared with a customized Ohm card, the Ohm card manufacturing cost is low, and the construction cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hand tools technical field especially relates to a ohmka manufacturing tool. BACKGROUND

[0002] At present, in the grounding construction process, the galvanized steel pipe is often used as the vertical grounding electrode to cooperate with the horizontal galvanized flat steel to form the grounding grid of the plant area. In order to ensure that the vertical grounding electrode and the horizontal grounding flat steel have a good contact surface, it is usually necessary to bend the horizontal grounding body during the construction process to form a matching omega shape according to the size of the grounding electrode, which not only can increase the contact surface of the two and increase the flow cross section, but also is convenient for on-site welding and fixing construction. The horizontal grounding flat steel belt in the omega shape is the ohmka. The ohmka currently used needs to be customized in the factory, which results in that the simple ohmka needs to spend a high customization cost. Especially for some projects located in remote areas, a high transportation cost also needs to be spent, which increases the additional construction cost.

[0003] The on-site processing method usually adopts the way of placing the grounding steel pipe at the bottom and bending it by hammering. This method is time-consuming and laborious, and the galvanized layer on the surface of the grounding body is easily damaged. At present, there is a lack of a tool that can simply and quickly manufacture the ohmka to reduce the use cost of the ohmka. SUMMARY

[0004] In order to solve the problems in the prior art, the utility model provides an ohmka manufacturing tool which is arranged on a base and comprises a bearing, the inner ring of the bearing is fixedly connected with the base, a bending shaft coaxial with the bearing is arranged on the inner ring, a clamping groove is arranged in the bending shaft, a force arm is fixedly arranged on the outer ring of the bearing along the radial axis, a bending part is arranged on the force arm, a nut is arranged flush with the bending shaft on the base, and an adjusting bolt is threadedly connected in the nut along the radial axis.

[0005] Specifically, the bending part is cylindrical, and the side wall of the bending part is provided with anti-skid lines.

[0006] Specifically, the nut is arranged on a fixed column, and the height of the fixed column matches the height of the bearing.

[0007] Specifically, a diameter adjusting shaft sleeve is sleeved on the bending shaft.

[0008] Specifically, the diameter adjusting shaft sleeve comprises an inner shaft sleeve, an outer shaft sleeve and a connecting plate connecting the inner shaft sleeve and the outer shaft sleeve, the outer diameter of the inner shaft sleeve matches the inner diameter of the bending shaft, and the thickness of the connecting plate matches the width of the clamping groove.

[0009] Compared with the prior art, the utility model has the advantages of:

[0010] The utility model provides a kind of ohmka making tool, and the tool overall structure is simple, and tool manufacturing cost is low, in construction site using the tool, through twice straight part bending and once overall radian bending, a flat steel band can be made ohmka quickly, compared with purchase custom ohmka, the cost of making ohmka is low, effectively reduces construction cost, can be used in the construction of various types of power station main grounding grid and small-bore pipeline ohmka making and promote. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is flat steel band straight part bending schematic diagram;

[0012] Figure 2 It is flat steel band overall radian bending schematic diagram;

[0013] Figure 3 It is installation adjusting sleeve schematic diagram.

[0014] Reference signs: 1, base station;2, bearing;21, inner ring;22, outer ring;3, bending shaft;31, clamping groove;4, force arm;41, bending part;5, nut;6, adjusting bolt;7, fixed column;8, adjusting shaft sleeve;81, inner shaft sleeve;82, connecting plate;83, outer shaft sleeve;9, flat steel band. DETAILED DESCRIPTION

[0015] The embodiment of the utility model is further described in detail in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0016] As Figures 1-3 Indicated, the utility model provides a kind of ohmka making tool, and flat steel band 9 is bent twice straight part and once overall radian by pushing force arm 4, and ohmka is made quickly, and the size of ohmka can be customized according to the pipe diameter required.

[0017] The tool is set on the base 1, which can be a table top or a platform, such as a platform welded on a fixed column. The bearing 2 is set on the base 1, which includes the inner ring 21, the outer ring 22 and the balls set between the inner ring 21 and the outer ring 22. The inner ring 21 and the outer ring 22 of the bearing 2 can rotate relative to each other, and the inner ring 21 of the bearing 2 is welded on the base 1. The hollow bending shaft 3 is coaxially set on the inner ring 21 of the bearing 2, and the bending shaft 3 is provided with the clamping groove 31, which is slightly wider than the width of the flat steel strip 9. The flat steel strip 9 can be placed in the clamping groove 31. The bending shaft 3 is used for the overall bending of the ohmmeter, and the clamping groove 31 is used for the bending of the flat part of the ohmmeter. The outer ring 22 of the bearing 2 is fixedly provided with the force arm 4 along the radial axis, and the force arm 4 is welded on the outer ring 22 of the bearing 2. The bending part 41 is set on the force arm 4, which is located at the connection position of the outer ring 22 and the force arm 4 and is welded on the force arm 4. The bending part 41 is bent to bend the flat steel strip 9 by rotating the force arm 4. The bending part 41 is cylindrical, and the anti-skid pattern is set on the side wall of the bending part 41. When the force arm 4 is rotated, the friction between the bending part 41 and the flat steel strip 9 is increased. In the process of deformation, the proportion of elastic deformation of the flat steel strip 9 is reduced, so that the rebound of the flat steel strip 9 after bending is reduced, the stress is uniformly transmitted, and the local stress concentration is reduced to avoid cracks or wrinkles of the flat steel strip 9 during bending. The bearing 2 and the long force arm 4 are adopted, which greatly reduces the rotating friction of the tool during bending, saves time and labor.

[0018] The fixed column 7 is set on the base 1 outside the bearing 2, and the nut 5 is welded on the fixed column 7. The height of the fixed column 7 matches the height of the bearing 2, so that the height of the nut 5 is flush with the height of the bending shaft 3. The threaded hole of the nut 5 faces the axis of the bearing 2, and the adjusting bolt 6 is threadedly connected in the nut 5. The adjusting bolt 6 is arranged along the radial axis, and the distance from the front end of the adjusting bolt 6 to the bending shaft 3 can be adjusted by rotating the bolt according to the thickness of the flat steel strip 9 and the diameter of the ohmmeter to be prepared. The adjusting bolt 6 is perpendicular to the clamping groove 31 to avoid blocking the flat part of the flat steel strip 9.

[0019] The adjusting diameter sleeve 8 with different pipe diameters can be sleeved on the bending shaft 3, so that the radius of the prepared ohmmeter is adjusted to adapt to various pipe types. The adjusting diameter sleeve 8 includes the inner sleeve 81, the outer sleeve 83 and the connecting plate 82 connecting the inner sleeve 81 and the outer sleeve 83. The outer diameter of the inner sleeve 81 matches the inner diameter of the bending shaft 3, and the thickness of the connecting plate 82 matches the width of the clamping groove 31. The inner sleeve 81 is sleeved in the bending shaft 3, the connecting plate 82 is clamped in the clamping groove 31, and the adjusting diameter sleeve 8 is sleeved outside the bending shaft 3 to fix the adjusting diameter sleeve 8 to avoid shaking of the adjusting diameter sleeve 8 during bending.

[0020] In use, first, the flat steel strip 9 with appropriate length is placed in the clamping groove 31. First, the length of the flat part on both sides of the ohmmeter is adjusted according to the specification requirements, such as Figure 1As shown, one side of the flat steel strip 9 is extended for a distance, the force arm 4 is manually pushed to rotate the bearing 2, the bending part 41 contacts the flat steel strip 9 and bends the extended part of the flat steel strip 9 to one side with the edge of the clamping groove 31 as the bending point, after one side is completed, the flat steel strip 9 is taken out and turned over to place, so that the other side is also extended for a distance and the flat steel strip 9 is bent in the same step, after the two sides are bent, the flat steel strip 9 is taken out from the clamping groove 31; then the radius of the Ohmka is adjusted, such as Figure 2 As shown, the force arm 4 is rotated to one side of the adjusting bolt 6, the adjusting bolt 6 is rotated to clamp one side of the flat steel strip 9, the flat steel strip 9 is parallel to the bolt, the force arm 4 is pushed to bend the flat steel strip 9 by the bending shaft 3 and the bending part 41, the Ohmka after bending is obtained, when the required pipe diameter is inconsistent with the bending shaft 3, the adjusting diameter sleeve 8 of the required pipe diameter is sleeved outside the bending shaft 3 after the flat steel strip 9 is bent on both sides, then the radius of the Ohmka is adjusted, the Ohmka of the required pipe diameter is obtained.

[0021] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An ohmic contact making tool, arranged on a base (1), characterized in that The application relates to a bearing (2) which is fixedly connected with an inner ring (21) of the base (1), a bending shaft (3) coaxially arranged on the inner ring (21) of the bearing (2), a clamping groove (31) arranged in the bending shaft (3), a force arm (4) fixedly arranged along a radial axis on an outer ring (22) of the bearing (2), a bending part (41) arranged on the force arm (4), a nut (5) arranged flush with the bending shaft (3) on the base (1), and an adjusting bolt (6) threadedly connected in the nut (5) along the radial axis.

2. The ohmka making tool according to claim 1, wherein, The bending part (41) is cylindrical, and the side wall of the bending part (41) is provided with anti-skid lines.

3. The ohmka making tool of claim 1, wherein, The nut (5) is arranged on a fixed column (7), and the height of the fixed column (7) matches the height of the bearing (2).

4. The ohmka making tool of claim 1, wherein, The bending shaft (3) is sleeved with a diameter-adjusting shaft sleeve (8).

5. The ohmka making tool of claim 4, wherein, The diameter-adjusting shaft sleeve (8) comprises an inner shaft sleeve (81), an outer shaft sleeve (83) and a connecting plate (82) connecting the inner shaft sleeve (81) and the outer shaft sleeve (83), the outer diameter of the inner shaft sleeve (81) matches the inner diameter of the bending shaft (3), and the thickness of the connecting plate (82) matches the width of the clamping groove (31).

Images