DE1981658U - REDUCING PULSE SWITCH FOR LUBRICANT CIRCUITS. - Google Patents

Description

lirma DEUTSCHE TEOlLEMIT & .m.b.H.

Diaper bleach over
Bielefeld

'• Reducing distributor for Sehmiermittekreislauf' ¹ .

For this application, the priority of the corresponding French application PV. 84,582 of 23 ifo-November 1966 used. _:

The invention relates to automatic lubrication systems (Central lubrication), and it concerns in particular their distributors and their metering devices. ".-. '.

In such systems, the amount of lubricant allocated to each lubrication point is usually controlled by changing the - ■■ -. "., Stroke of the; piston of the umeßorgans, but ... this:; stroke only in very limited örehzeη regulate what, not unless you complicate the system ¹ -WiIl ^in. NEN-to general V / leads / the less needy smudges a ".- '. clearly; bigger ones ^! Sealing medium amount. as / necessary or at _; one. to. high ^: Preguence to be assigned, something for certain lubrication points, undesirable; be. can. - _{^{λ:; ::;:}} - ■ _:: '. _{: i:} ^.W-:; . ^: _; V ^

The object underlying the invention is in. Loading - rectifying this shortcoming, and creating Bines distributor

WW. I. ^

to see, which makes it possible to precisely locate the lubrication point to supply the necessary amount of lubricant by using the this Sehmierstelle connected metering device in the "Yerlaufe of several filling processes of the dosing devices of the main circuit is only filled once,

ι - ■

The reducing distributor according to the invention is for this purpose at an upstream point with an intermittently working supply device, which conveys a constant volume with each actuation, such as a metering device of the main circuit, and at its downstream point with a lubrication point at the relevant lubrication point , connected to another dosing device. These metering devices can be of known type, and they consist of a body with a cylindrical chamber in which a piston is displaceable, the stroke of which creates a volume which is equal to a given number η times the container delivery stroke of _: -. \ upstream metering device, wherein the piston has a channel connecting its two end faces with one another, with a movable closing element arranged in the channel, which is arranged in this way. tet is that when the piston after eirs: number of strokes η .an. When it arrives at its stroke end, the upstream metering device is connected to the downstream metering device, with return means being provided to lock the piston and its closure member in their

Starting position as soon as the downward flow Dosing device has been completely filled.

An embodiment of the invention is shown in the drawing and - is described in more detail below. It demonstrate:

ig. 1 is a schematic representation of a lubricant circuit with a distributor after the Invention,

Fig- 2 shows an axial section through the distributor according to of the invention with items in the starting position of its working cycle, -:. . .

3 shows the divider according to Mg. 2 with itself in the filling position for the dosing device located downstream located individual points,

ig. 4 a variant of a braking means for the locking slide, ■ ■■■ .. ·

According to the illustration according to FIG. T, one sucks, for example operated with compressed air and connected to included: counter or clockwork Pump 1, the lubricant from a container 2 and leads it via line 3 in regular pumping pulses or strokes; the dosing devices D1, D2;, D3, D4, D5

^; - 4th

etc. too. The metering devices give a more or less large one to the sampling points P1, P2, P3 or P5 The amount of lubricant that is the same as that caused by the adjustment is the volume generated by its volumetric flask, the extent of this metering stroke for each individual metering device when installing, it is proportional to the amount of lubrication required for the corresponding lubrication point. . and within the Einteilbegrenzη this metering device " is set. Such a system is known per se. ". '.' ■"

However, if a lubrication point, for example the lubrication point 'P4> requires a quantity of lubricant that is smaller than the minimum quantity that can be supplied by the metering device D4 or, if it is to be lubricated at longer intervals than the other lubrication points, a metering device D € is provided according to the invention, which corresponds to a conventional metering device, but is fed via a reducing distributor E (distributeur t upward is ate ur) - which receives the creaming agent from the metering device D4. ; ^V::.; :; - '' ■ '■■' ■ '■:' - '' : \; - ^:. .: - .. i _;

This reducing .Verteiler Ϊ: consists of a body 4 having a-cylindrical chamber 3, which at one (in.der ^drawings: voltage in the lower part shown) of its ends, on which: an inlet channel 1 3 opens, is .verschlossen -. This end

of the G-eat is provided with the appropriate means to create a suitable. Connect the lubricant line to the distributor. The other end of the chamber is through one for example screwed-in sealing plug 15 closed, which be part of the dosing device D6 can. The sealing plug D6 has a longitudinal bore provided, and it extends into the chamber 5 into a nozzle at the end of which a conical seat is formed.

A piston 6 is displaceable in the chamber 5, a seal 10, for example an O-ring, ensuring the seal with the wall of the chamber. The piston 6 has an axial channel in which a slide 7 is slidable is provided on its underside with a head 7a which is formed so that it can close the lower end of the channel of the piston 6 in the manner of a valve. To perfect the sealing of this closure, a to.risehe ring seal 11 can expediently be used.

The slide 7 has an axial channel which. some-.. has lateral passages 9 above the head 7a. The upper end of the slide is designed so that it ■: '. ; cooperate with the conical seat of the nozzle 15 and ..- '".-. when these two parts come into contact with one another, a Qäkann share the close connection with you. The verse movement

■■ - ■■■ ..6. ■> ■■ "■

of the slide 7 in the piston 6 is on the one hand through.

S. I. '-

the head 7a and on the other hand by a 7b, which is arranged so that the passages 9 "are completely exposed when the piston 6 hits this fire ^^ Vb.

A ring 12 is inserted between the inner wall of the channel present in the piston 6 and the slide 7 in such a way that, as will be discussed in more detail below, considerable friction arises. This ring is: in a Mn the proper. Borrowed body 6b of the piston 6 _: formed exterior: "^ arranged, with the piston also having a displaceable ring 6a, on which a return spring 14 acts, the other end of which is supported and endeavored against the locking cup 15: -supported is to _{hold the;} consisting of piston and slider movable unit 6-7 in the position shown in ^: lig.; 2i:,.;. ::; ' ^: - ..

The chamber 5 is via an opening 16 either; connected to a: ■ '. "■': iT divider .17 (Fig. 3) or via a return line to _: the container 2 (fig .: 1;). ^: . _: V. '.' ^.:

The. Ar be itsweIse of the reducing nde η VerMte IleRSs by; the: invention is assuming that the lines and ". Iverschieäaaen organs are already filled mityj'lüssigkeit and \ check in; in Fig Iiage befind s _2} shown following

In a conveyor impact or the pump hub 1, the Dosiervorriehtungen D1, D2, Dj, D4, D5 nachgefüllt-, while the lubricant contained since the previous Jörderhub in this Dosiervorriehtungen in the direction towards the lubrication points P1 ₅ P2, ^P3:, P5 and is ejected from the metering device D4 in the direction of the reducing manifold T. The lubricant lifts the check valve 18 (Pig. 2) from its seat and pushes the unit 6-7 consisting of piston and slide by a fraction of its stroke corresponding to the injected tolumen. The same occurs with the following lörder strokes η of the pump until the end of the slide 7 comes into contact with the conical seat of the nozzle. At this point in time, the slide is immobile, but the piston 6 is advanced further until. the! passages 9 are exposed. To this. Time are the .individual parts of the distributor, in -ihrer in Mg .. 3 .. presented. Position and is the metering device D6 with ^: Connect line 3 directly. When refilling this metering device: equalize the pressures on the end faces in front of and behind the piston and become the piston. '_; pushed back through the leather 14. The toroidal ring seal 12 (or an equivalent friction part) holds the piston 6 and the slide 7 in their reciprocal. Location according to Fig. 3, so _: that it looks in the direction of flow in front of the. Piston and slide existing unit 6-7 are located. The lubricant can get behind this unit.

When the end of the slide 7 hits against the The bottom of the chamber 5 is still shifting Action of the leather 14 underlying piston 6 on the slide, and it finally closes the passages. 9, / when the individual parts of the distributor are back in their The starting point for their work cycle has arrived.,

During the subsequent delivery strokes of the pump, the Piston and slide existing unit 6-7 advanced again, until the parts 7 and 15 are connected to each other stand and the amount of lubricant corresponding to this adjustment via the opening 16 either in the direction on a dosing device 17 (Pig. 3) or on the \ Container 2 (Pig. T) or to a lubrication point Px via the Port 16 is ejected.

It is clear that by choosing a metering device D4 or a reducing distributor I of suitable delivery rate and stroke and a metering device D6 of ge. ; A suitable capacity - the lubrication point a certain amount of lubricant at a certain frequency - can be supplied, which is smaller than the single stroke amount of the feed pump. '-..-. . ; ■■; ".-, ... :;, - .. -. ■;, - ■

From it is clear that if the metering device D6 would be connected to a further, reducing distributor instead of conveying in the direction of the lubrication point, .the. . ^; .

Operating frequency of Tainter this reducing manifold connected Dosiervorricht ₌ ung could be reduced even further.

Of course, without departing from the scope of the invention, further designs could be provided. For example, the braking means could for the slide opposite the piston one in a conical Recess arranged spherical rim 19 (Pig. 4), through the wall of this recess and through an elastic means towards the slidable Wall of the other rope is acted upon. - \

Claims (1)

Expectations 1. Reducing jfe ^ tei.lea? · For -automatic-. sehmung, which is to be connected upstream to a cable-wise feeding device and downstream to a metering device connected to a lubrication point, characterized by a chamber (5) ₅ in which a piston (6) can be displaced, the stroke of which creates a volume greater than the single; conveying stroke of the: feed device (D4), to which the chamber (5) is connected, a channel (8) connecting the two end faces of the piston with one another, a movable closing element (7) which is so: arranged that; it ; the canal; (8) in the resting position V closes, and the flow upstream linefeed V device D4, when the piston (6) after a certain AiLzahl of: arrives power strokes at its stroke end ', comprising: the down stream metering device (D6) connected Sheet, and used return means (14) the piston (6) and the closure member; (7) return to its rest position V as soon as the downstream dosing device (D6) is completely filled, 2; ■ -. wherein the connecting channel (8) during this Eückhubes .. remains open to stop the transfer of lubricant to allow the chamber in front of the piston into the chamber behind the piston 2. Distributor according to claim I _5, characterized in that the piston (6) contains a movable slide (7) arranged coaxially with it and provided with a channel (8) in such a way that these two parts (6,7) are displaceable on one another However, means (12) are provided which oppose this mutual displacement below a predetermined force, while piston (6) and slide (7) are arranged so that the channel (8) of the slide (7) through the necessary with seals (11) provided piston (6) is sealingly closed in one position »; ; ; "" .-- ". ■, / ■■ 3 "•• -. ■ Distributor according to claim 2, characterized in that the braking means for the _of: Piston and slide teestehen- '- de unit; (6-7) a toric: ring seal (0-ring) (12) 4. Distributor according to .Anspruch 2, characterized in that .. the braking means for the piston: and slide _:. Unit (6-7) is a ball ring (19) which is through at least; a: conical wall and through one; elastic part (14) V '■ ν, - is acted upon. ^~: ~ \: - - ν ^ ν. ^; ■ _ - ^; v : ^ -: '.' :. : ^;! \ ~ / \ - ~ patent attorneys