DE6603392U - DISTRIBUTORS, IN PARTICULAR PISTON DISTRIBUTORS FOR LUBRICATION SYSTEMS - Google Patents

Description

Patent Attorneys DIPL.-INQ. R. OHMSTEDE DIPL-INQ. B. SCHMID

STUTTQART S. FALBEN H EN NE NSTRASSE 17 TELEPHONE (0711) 708893

8534- S / h

Eugen Woerner

Distributor, especially piston distributor for lubrication systems

The invention relates to a distributor, in particular a piston distributor for lubrication systems with a two inlet and at least one outlet as well as at least one control and one working piston having a housing. that the inlets and outlets, together with the control and working pistons, are arranged in a single housing. If the delivery rate of such a divider is to be changed, see above

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this must be completely removed, ie disconnected from all connecting lines. Conversely, the new or amended distributor must "again be connected to the connecting lines and sealed. Since such manifolds are often mounted in inconvenient and hard to reach areas, this exchange, charged generally with high Hontagekosten. In addition, for large systems more of these Distributors are combined in groups, with the group then being assembled as a unit. However, only distributors of the same size can be combined into one another. B # i such Block are enlarged, either oversized distributors must be used for the remaining lubricating parts or the large distributor can no longer be attached to the distributors previously combined in the relevant block.

TJm to create an improvement here is at a distributor proposed according to the invention of the type described that the housing is formed from at least two housing parts, wherein a first housing part only has the inlets and outlets. When the flow rate changes, the first housing part remains always firmly connected to the pipelines. It just grazes the second or the remaining housing parts removed and replaced. As a result, the system can be quickly and easily Rebuilding effort. This also simplifies maintenance

substantial. The housing parts are connected to one another via bores or channels, which are connected in a known manner via Q-rings are sealed at the abutting mouth edges of these holes.

It is particularly expedient here that the first housing part is designed to accommodate several further housing parts of approximately the same design, each having at least one control piston and one working piston. This not only means that the manifold is manufactured economically, but also means that ¹ UeXa is clear? also an i »e ^! ses.tlichy6 simpler and thus cost-saving assembly of the connection lines. The other housing parts connected to the first housing part can be equipped with pistons of different sizes. Conversely, it is possible to later replace one or the other with a larger or smaller piston with originally large pistons by exchanging the corresponding housing parts will.

In a particularly preferred embodiment, the housing consists of three housing parts, with a second housing part the control piston and a third housing part the working piston contains. This second and third housing part are of course also via sealed bores or Channels in connection with each other. This embodiment has] | also the advantage that when installing, for example, one

different working Kolbeife only the exchange of a relative small part of the distributor housing is required.

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Should one of the two pistons be replaced by a much smaller one

or larger ones, including the housing part surrounding it experiences a considerable change in size, there is the possibility that now the parts of the original The connection channels of the adjacent second and third housing parts are no longer with- curse each other. However, in order to still be able to hydraulically couple the second and third housing parts to one another, are In a further embodiment of the invention, the second and the third housing part via pipes, hoses or the like. connected with each other.

Another possibility of changing the amount of lubricant without replacing the housing part surrounding the changed piston is achieved in that, according to a further feature of the invention, the control and / or the working piston in one replaceable cylinder liner of the housing part surrounding him or her are arranged. The outer diameter of the cylinder liners to be exchanged are in each case gHäch, whereas the inner bores of the bushings are adapted to the piston diameters used.

Furthermore, it is very advantageous that at least the housing part having the working piston is made of antimagnetic ! Material is formed and at least the working piston one

Has magnets, wherein in the housing, in the area of the magnet _T

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pole at least one switch contact that can be magnetically influenced is arranged. This means that the piston or pistons can also take on switching tasks. In addition, the working piston due to this facility instead of hydraulic, as has been the case up to now can now be reversed by a switching pulse. The magnet is preferably designed as a permanent magnet and in a disgusting way, a sleeve-like shape and is arranged concentrically to the piston. This design brings considerable assembly advantages with it. According to According to a particularly preferred embodiment, two pistons, assigned to one piston, are in the housing in the direction of movement thereof seen one behind the other switching contacts arranged, each switching contact is located approximately in the area of a piston end position. The piston can then be in both end positions can be reversed by switching contacts. The switching contacts are preferably in a known, in particular Inert gas-filled capsule or the like. Arranged.

Tn the drawing is an embodiment of the invention shown in a vertical longitudinal section.

The housing 1 of the distributor consists of the first housing part 2 and the second housing part 3 · The latter is laterally closed by covers 4, 5. The first housing part 2 contains the Entrance 6, 7 and exits 8, 9 * It is with the second

Housing part 3 via bores 10-17 in hydraulic connection. For the lateral sealing of these bores 10-17 at the connection points, recesses 18 of the first housing part are made s 2 O-ine 19 inserted.

In the second housing part 3, the control piston 20 and the Working piston 21 arranged. The control piston 20 is directly displaceable in the housing 3 in a cylinder bore 22, while the working piston 21 is in an inner bore 42 an exchangeable cylinder liner 23 is located »the latter is arranged in the housing bore 24 of the second housing part 3 .

A hooking groove 25 is incorporated into the working piston 21, into which an annular permanent magnet 26 is inserted. Two sleeves 27 are provided to seal the working piston. Switching contacts 30) 31 are arranged in recesses 28, 29 of the cylinder liner 23. They are located in capsules 32, 33 filled with protective gas, each of which is approximately in the area of an end position of the working piston and is actuated by the permanent magnet 26. The switching contacts 30, 31 are connected to an electrical measuring and counting device (not shown) via lines y \ - mi "b.

If there is now, for example, the bore 16 of the first housing part under pressure, the control piston 20 is moved to the left until its end 35 on the cover 4- of the second

Housing part 3 abuts. The one standing in front of the stoner Medium - is fed to the pump (not shown) that generates the pressure via the bore 10 and the access 6. The latter in this case serves as an exit *

after the control piston has reached its left end position • the bore 36 is released and the medium flows over the channel 37 i * i the inner bore 27 of the cylinder liner 23. As a result, the working piston 21 also moves to the left into his End position shifted. The medium in front of the working piston flows through the connecting channel 38 into the through aen reduced cross-section of the control piston and the inner bores of the second housing part 3 formed annular space 39 · from this the medium "arrives via the bore 12 to the outlet 8 of the as well how the outlet 9 is connected to Ge of a lubrication line. When the working piston 21 has reached its left end position, the permanent magnet 26 actuates the switching contacts 30, which in turn reverse the pump for the medium. The pressure medium now flows through the access 6 of the housing part The SiHier piston now moves to the right and thereby causes a shift of the working piston that also goes to the right. The M & iusi or lubricant now overflows the outlet 9 to the consumer or to the lubrication point. The switching contacts 31 cause another reversal of the Control piston.

If the screw plug 4-0 in the first housing part 2 is removed, the medium can pass through both of them simultaneously with each working stroke

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Departures 9 can be taken. On the other hand, one can of the two outlets are closed so that the lubricant over a nicifc -closed outlet flows out.

Claims (10)

Ι Protection Claims 1. Distributors, especially piston distributors for lubricants systems with one two inlet and at least one outlet gang as well as at least one tax and one work Housing having pistons, characterized in that the housing (1) consists of at least two housing parts (2, 3) is formed, with a first housing part (2) only having the inlets and outlets (6, 7 and S, 9). 2. Distributor according to claim 1, characterized in that the first housing part (2) for receiving several approximately identically designed, each having at least one control piston (20) and one working piston (21) further housing parts (3) is formed. 3, distributor according to one of claims 1 or 2, characterized characterized in that the housing (l) consists of three housing parts, with a second housing part the Control piston (20) and a third housing part the Contains working piston (21). 4. Distributor according to claim 3 »characterized in that the second and the third housing part via pipelines, Hoses or the like. Are connected to each other. 5 distributor according to one of the preceding claims, characterized in that the control piston (20) and / or the working piston (21) are exchangeable Cylinder bushing (25) of the housing part (3) surrounding it or them are arranged. 6. Distributor according to one of the preceding claims, characterized in that at least that, the The housing part (3) having the working piston (21) is formed from antimagnetic WeSfötoff and at least the working piston has a magnet (26), wooei in the housing, in the area of the magnetic poles at least one magnetically lockable switch contact (30, 31) arranged iöt. 7. Distributor according to claim 6, characterized in that the magnet (26) is designed as a permanent magnet. 8. Distributor according to one of claims 6 or 7> thereby characterized in that the magnet (26) has a sleeve-like shape and is arranged concentrically to the piston is. 9 · Distributor according to one of Claims 6 to 8, characterized characterized in that two switching contacts (50, Jl) which are assigned to a piston and are located one behind the other as seen in the direction of movement thereof are arranged in the housing (1) are, each switching contact is located approximately in the area of a piston end position. 10. Distributor according to one of claims 6 to 91 characterized <T, taVt3nnfy. p> T c Vir> e i: _ Hafl die s & hsitkGntakte ^? Q ^ l ^ in a known, especially inert gas füUtea capsule (32, 33) or the like are arranged. 6R03392