Self-clamping current support catcher

Abstract

FIELD: application of coatings in galvanic bath.SUBSTANCE: self-clamping current support for transmitting current to a suspension device comprises a housing with a recess, a current-transmitting surface rigidly attached to one side of the housing recess, a clamping mechanism installed on the other side of the housing recess and pivotally secured to the housing. The clamping mechanism has projections in its design that limit the extreme positions of the clamp. The angle between the current-transmitting surface and the clamping mechanism is made from 5 to 45°. The current-transmitting surface is configured to be connected to a power source.EFFECT: increasing the maximum permissible current strength passing through the support-catcher while maintaining its dimensions, improving the conditions for the passage of current, using rectangular current collectors on a suspension device, and reducing the requirements for the quality of cleaning of current-transmitting surfaces during operation.3 cl, 2 dwg

Description

[0001] The invention relates to galvanic coating baths and is intended for transmitting current to a suspension device and transmitting current to anode buses in the bath.

[0002] A known electrical connecting clamp (RU Patent No. 2340989) features leaf spring tabs, produced by free-cutting / stamping from a portion of a spring steel sheet, and a current-carrying busbar extending across all clamping points. The stripped ends of electrical wires can be inserted through window-shaped recesses created in the spring steel sheet by free-cutting, and then clamped with electrical and mechanical contact at the clamping points formed between the free ends of the tabs and the busbar. The main direction of the extension of the window-shaped recesses in the spring steel sheet intersects the axes of the clamped electrical wires at such an installation angle that the upper edge region of the spring steel sheet with the bases of the tongues and the lower edge region of the spring steel sheet with the busbar supported in a fixed position are located in close proximity to the ends of the clamped wires freed from insulation.

[0003] A connecting clamp is known (Russian Federation Patent Application No. 2013122215), comprising a connector, at least one conductive layer formed in the form of wire spirals and mounted over the connector, and a protector-lock formed in the form of wire spirals, wound over the conductive layer. The connector is formed in the form of several wire strands, each of which consists of several wire spirals glued together and wound onto the core of the wires to be connected, wherein an adhesive and abrasive layer is applied to at least one of the contact surfaces of the connecting clamp elements, namely, between the wire core and the inner surface of the connector, the outer surface of the connector and the inner surface of the conductive layer, and the outer surface of the conductive layer and the inner surface of the power layer.

[0004] A known catcher support with a contact device (Internet source: https: / / studfile.net / preview / 7134356 / page:7, accessed 10.09.2025) has a cast iron power section attached to the bath via insulating spacers and bushings. The support is equipped with a copper busbar for current supply. One of the support's cheeks is pivoting and secured to an axle. When the loading device base is lowered into the catcher support, its trunnion presses the arm of the pivoting cheek, and the other arm clamps the trunnion between the busbars.

[0005] The main disadvantages of existing current-transmitting devices are the low maximum permissible current, the use of only a round cross-section on the suspension device, and high requirements for the quality of cleaning of current-transmitting surfaces.

[0006] The problem that the invention is aimed at solving is to eliminate the shortcomings of known technical solutions.

[0007] The technical result obtained through the practical use of the proposed invention is an increase in the maximum permissible current strength passing through the support-catcher while maintaining its dimensions, an improvement in the conditions for the passage of current, the use of rectangular current collectors on a suspension device, and a reduction in the requirements for the quality of cleaning of current-transmitting surfaces during operation.

[0008] The technical result is achieved in that, according to the declared technical solution, in a self-clamping current catcher support consisting of a housing with a recess, a current-transmitting surface rigidly attached to one side of the housing recess, a clamping mechanism installed on the other side of the housing recess and pivotally secured to the housing, the clamping mechanism has projections in the design that limit the extreme positions of the clamp, the angle between the current-transmitting surface and the clamping mechanism is made from 5° to 45°, the current-conducting surface is connected to a power source.

[0009] In this embodiment, a current-transmitting surface connected to a power source is attached to the clamping mechanism. The current-transmitting surface is connected to the power source via a flexible conductor.

[0010] The proposed device is explained by the drawings: Fig. 1 - diagram of the support-catcher, Fig. 2 - diagram of the support-catcher with an additional current-transmitting surface.

[0011] The following designations have been introduced:

[0012] 1 - body, 2, 5 - current-transmitting surface, 3 - clamping mechanism, 4 - current collector of the suspension device.

[0013] The self-clamping current catcher support (Fig. 1) consists of a body 1 (base) of the current catcher support, a current-transmitting surface 2 rigidly attached to the body 1 of the current catcher support, a clamping mechanism 3 pivotally mounted on the body 1 of the current catcher support. The current-transmitting surface 2 is supplied with electricity from a current source of the galvanic bath. The clamping mechanism 3 has projections in its design that limit the extreme positions of the clamp. The design angle between the current-transmitting surface 2 and the clamping mechanism 3 is 5≤α≤45°. The nominal value of the angle α on the current collector 4 of the suspension device and the current catcher support must be the same. The wavy line in Fig. 1 denotes the current-transmitting surface 2.

[0014] The design of the catcher support may include an additional current-transmitting surface 5, secured to the clamping mechanism 3 (Fig. 2). This solution allows for an increase in the maximum permissible current passing through the catcher support while maintaining its dimensions. When transmitting current through the clamping mechanism 3, it is necessary to connect the current-transmitting surface 5, secured to the clamping mechanism 3, with a flexible conductor. The flexible conductor may be connected either directly to the current-transmitting surface 2 or to conductors from the galvanic bath current source.

[0015] Pantograph 4 is a copper, aluminum, or brass plate (busbar) to which a clamping plate is attached. The clamping plate can be made of steel, stainless steel, or a highly conductive material (copper, aluminum, or brass). The length and width of pantograph 4, as well as the dimensions and angle α of the clamping plate, are selected based on current transmission requirements. Pantograph 4 can have a thickness from 4 to 20 mm and a height from 40 to 300 mm, depending on the calculation.

[0016] The support-catcher operates as follows. The current collector 4 of the suspension device is placed in the recess between the current-transmitting surface 2 and the clamping mechanism 3. The clamping mechanism 3 presses the current collector 4 by means of a hinge.

[0017] Using this unit allows for the use of rectangular (trapezoidal) cross-section current collectors (busbars) on a suspension device. Rectangular cross-section busbars have better current transfer rates (A / mm) than round cross-section busbars. 2 , and, all other things being equal, deflect less when parts are hung. Clamping mechanism 3 reduces the cleaning requirements for current-transmitting surfaces during operation, allowing for manual, uneven removal of the oxide film.

[0018] Another advantage of the self-clamping current catcher is that as the mass of the parts increases, the clamping force increases, which in turn improves the current flow conditions. There is a correlation between the mass of the parts and the surface area, and the current transmitted to the suspension device is directly related to the surface area of ​​the parts being coated. In turn, the current transmitted through the contact surface is directly related to the clamping force between the surfaces.

Claims

1. A self-clamping current support for transmitting current to a suspension device, comprising a housing with a recess, a current-transmitting surface rigidly attached to one side of the housing recess, a clamping mechanism mounted on the other side of the housing recess and pivotally secured to the housing, the clamping mechanism has projections in its design that limit the extreme positions of the clamp, the angle between the current-transmitting surface and the clamping mechanism is made from 5 to 45°, the current-transmitting surface is designed with the possibility of connection to a power source.

2. A support-catcher according to paragraph 1, characterized in that an additional current-transmitting surface is secured to the clamping mechanism, designed with the possibility of connection to a power source.

3. A support-catcher according to paragraph 2, characterized in that the current-transmitting surface is designed with the possibility of connection to a power source via a flexible conductor.

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