SU888251A1

SU888251A1 - Hand tool for crimping cable lugs

Info

Publication number: SU888251A1
Application number: SU792846716A
Authority: SU
Inventors: Анатолий Гаврилович Сальников
Original assignee: За витель
Priority date: 1979-11-23
Filing date: 1979-11-23
Publication date: 1981-12-07

Description

II

Изобретение относитс к области электромонтажных работ, в частности, к гидромеханизмам дл обжима кабель ных наконечников и с оединителей на проводах.The invention relates to the field of electrical installation work, in particular, to hydraulic mechanisms for crimping cable lugs and from disconnectors on wires.

Известны инструменты с гидроприводом дп обжима кабелышх наконечников на проводах, содержащие корпус и последовательно расположенные внем вдоль оси силовой цилиндр с поршнем, насос и резервную камеру с жидкостью, выполненную в виде цилиндра tl J.Known tools with hydraulic dp crimping the cable end of the terminals on the wires, comprising a housing and successively located along the axis of the power cylinder with a piston, a pump and a backup chamber with liquid, made in the form of a cylinder tl J.

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Недостатком этого инструментаDisadvantage of this tool

вл етс то, что перемещение поршн возможно только за счет разрежени , создаваемого насосом при перекачивании жидкости из резервной камеры в силовой цилиндруа обратное перемещение за счет давлени жидкости, вытекающей из силового цилиндра под воздействием подпружиненного силового цилиндра.is that the piston can only be moved due to the vacuum created by the pump when pumping fluid from the backup chamber to the power cylinder, the backward movement due to the pressure of the fluid flowing from the power cylinder under the influence of the spring-loaded power cylinder.

Из известных ручных инструментов дл йбжима кабельных наконечников на проводах наиболее близким по технической сущности и достигаемому результату вл етс ручной инструмент,, содержащий корпус и расположенные в нем вдоль оси и взаимодействующие друг с другом силовой цилиндр, насос с плунжером и резервную камеру с жидкостью, выполненную в виде зластичной оболочки, соединенной одним из своих концов с корпусом, и привод, св занный с плунжером насоса через передаточное звено 12.Of the known hand tools for cable lugs on wires, the closest in technical essence and the achieved result is a hand tool, comprising a housing and axially located and interacting with each other power cylinder, a pump with a plunger and a backup fluid chamber made in the form of an elastic sheath connected by one of its ends to the housing, and an actuator connected to the pump plunger via the transmission link 12.

Недостатком зтого инструмента вл етс то, что оболочка своими концами прикреплена неподвижно к корпусу . Это ограничивает возможность изменени объема камеры и не позвол ет обеспечить достаточньй ход сило-, вого поршн .The disadvantage of this tool is that the shell with its ends is fixedly attached to the body. This limits the ability to change the volume of the chamber and does not allow for sufficient travel of the force piston.

Claims

The purpose of the invention is to expand the functionality of the tool. cop. The goal is achieved in that the lime hand tool is provided with a sleeve covering the transfer member with the possibility of longitudinal movement along it and connected to the second end of the elastic sheath. Another difference of the tool is that the drive is made in the form of a crank mechanism with a handle. 1 shows a General view of the proposed tool, the cut; figure 2 - the same, in the working position. The hand tool includes a housing 1, a power cylinder 2 with a piston 3, a pump with a plunger 4, and a back up chamber 5 for fluid, made in the form of an elastic sheath connected by one of its ends to the housing. The backup chamber 5 is communicated by channel 6 with the cavity 7 of the pump through the suction valve 8, and through the check valve 9 with the cavity of the power cylinder

2. The backup chamber is also communicated with the cavity of the power cylinder 2 through the drain valve 10 and the channel 11 and 6, and can also be communicated through the safety valve 12. The spring 13 is intended to rotate to the initial position of the power piston

3. The pump plunger 4 is moved by the transfer link 14. The transfer link has a cylindrical outer surface, on which a sleeve 15 is mounted movably on which one end of the shell 5 of the backup chamber is fixed. The transfer link 14 is made in the form of a connecting rod, which has 16 and 17 at the ends of the head, one for connecting to the pump plunger and the other with a crimp 18. There is a handle 19 for driving the crank. The tool works as follows. In the initial position, when the liquid stock from the backup chamber is not used yet, the sleeve 15 is in the lowest position, the shell 5 allows it to standby, and the shell itself has the shape of a sleeve. When the plunger 4 collects fluid from the backup chamber 5, the shell is compressed by vacuum in the backup chamber, and its end, fixed on the sleeve 15, shifts the sleeve towards the pump plunger 4, while the transfer element moves in the opposite direction. When fluid is pumped by the plunger, the sleeve 15 moves together with the transfer link 14 in the direction of the plunger.

4. As the fluid from the backup chamber decreases, sheath 5 tightens sleeve 15, moving it along the transmission link in the direction of the plunger. At the end of the work, the liquid from the cavity of the power cylinder-2 is drained through the drain valve 10 through channel 11 into the back-up KeiMepy

5. When the valve 10 is opened, the drain piston 3 returns to its original position under the action of the spring 13 and forces the liquid into the back-up chamber, the free end of which, attached to the sleeve, moves with it to its original position. By increasing the functional efficiency of the backup camera, the technological capabilities of the tool are expanded. The tool can be used for chopping, cutting, and other jobs where more progress is required, for crimping lugs on wires. The tool works properly in any spatial position with a significant volume of the backup camera. The transmission link simultaneously performs the functions of a crank drive rod, which ensures uniform pump operation, does not require much effort to activate it, and is easy to maintain. Claim 1. Hand-held tool for crimping cable lugs on wires, comprising a housing and axially located and interacting with each other - a FORCE cylinder, a pump with a plunger and a backup chamber with liquid, made in the form of elas-. A single casing connected to one of its ends with a housing and a drive connected to the pump plunger through a transmission link, characterized in that, in order to expand its functionality, it is equipped with a sleeve covering the transmission link with the possibility of longitudinal movement