CN103206427A

CN103206427A - Cylinder assembly with filling opening

Info

Publication number: CN103206427A
Application number: CN2012105970715A
Authority: CN
Inventors: U·普里姆斯; H·罗勒克
Original assignee: ZF Friedrichshafen AG
Current assignee: ZF Friedrichshafen AG
Priority date: 2012-01-16
Filing date: 2012-11-14
Publication date: 2013-07-17
Anticipated expiration: 2032-11-14
Also published as: DE102012200540A1; CN103206427B; DE102012200540B4

Abstract

The invention relates to a cylinder assembly which comprises a cylinder that has a closure mechanism, and at least one inner cavity of the cylinder is filled with work raw material. The closure mechanism has a filling channel which intersects with a closure channel. Since the work raw material exists in both the filling channel and the closure channel, a closure member capable of moving between a filling position and a closure position is arranged in the closure channel. The closure channel is implemented to be a through hole and the filling channel is implemented to be a blind hole. One the one hand the blind hole is communicated with the closure channel and on the other end the blind hole is connected with the inner cavity. The closure member seals the closure channel on two sides of the intersection point of the filling channel and the closure channel.

Description

The cylinder assembly that has inlet

Technical field

The present invention relates to a kind of cylinder assembly that has inlet according to claim 1 preamble.

Background technique

The cylinder assembly is in most of the cases filled by gas medium and/or hydraulic medium.Be provided with a plurality of inlets for filling the cylinder assembly.For example, can medium be incorporated in the cylinder assembly by the bottom of opening cylinder.This can be exemplarily with reference to DE9203542U1.

Yet, in most of the cases can use the filling channel in the closure member that is implemented in cylinder.The different modification of the inlet that DE1267472A is known by the closure member sealing.

In Fig. 3 of DE1267472, closure member has along cylinder assembly filling channel longitudinal extension, that be embodied as through hole.Described filling channel intersects with closed channel.The diameter of filling channel must be unconditionally less than the diameter of closed channel, because not so closure member sprawling in closed channel may not have sealing effect.But the diameter of filling channel has determined the fill cycle of cylinder assembly in essence.

Another of this layout of filling channel and closed channel and design proposal is problematic in that the disalignment error of these two passages may cause producing leakage point, because closure member seals with its outer surface.

In addition, the closed channel that is implemented as blind hole can only clean very difficultly.Filling channel and closed channel also will become very difficult in the deburring of its point of intersection processing, and not allow to exist the burr that will inevitably have a negative impact to sealing effect just herein.

Summary of the invention

The objective of the invention is to, the cylinder assembly of the closed channel that has filling channel and link to each other with filling channel is improved, thereby eliminate previously described leakage and production problem.

According to the present invention, this purpose will be achieved in the following way, namely, closed channel is implemented to through hole and filling channel is implemented to blind hole, described blind hole feeds closed channel on the one hand, be connected with inner chamber on the other hand, wherein closure member seals closed channel in the both sides of the intersection point of inlet and closed channel.

Of the present invention one big advantage is that the cross section of inlet and the cross section of filling channel are irrelevant.Inlet and closed channel also needn't optimally intersect geometrically.Even tangent connection the between filling channel and the closed channel, also can not eliminate the function of filling channel and closed channel.

In another favourable design proposal, stipulate that closure member is implemented to blind bolt.Closure member can be mobile slightly in closed channel.

According to a dependent claims, closure member is implemented to and has the sealing head, and described sealing head abuts on the closed channel distolateral.The sealing head has been simplified the automation filling of cylinder assembly, because the sealing head has limited predetermined sealing station, described sealing station for example can be known clearly by power-path control.

For guaranteeing that sealing technique is not abused, closure member and closing means welding.Have only by destroying member and just can open closing means.

Consider the low-cost production of closing means, closing means and closure member are made of plastics.

Can forget that in no case the scheme that closure member is installed is that closure member is fixed in the closed channel with the material fit Placement.

According to a favourable dependent claims, between closure member and closed channel, be furnished with at least one Sealing.By using described at least one Sealing, the improvement that sealing function can obtain continuing.

For further increasing the fill cycle of cylinder, filling channel can be implemented grooving.Closed channel and filling channel connect at vertical section of determining.

Description of drawings

Describe by means of accompanying drawing subsequently, can further explain the present invention.In the accompanying drawing:

Fig. 1 shows the distolateral partial sectional view of cylinder assembly;

Fig. 2 shows the side view of closing means among Fig. 1;

Fig. 3 shows the closure member that is in sealing station;

Fig. 4 shows the modification that has as Fig. 1 of the groove of filling channel;

Fig. 5 shows the side view of closing means among Fig. 4.

Embodiment

Fig. 1 shows the distolateral partial sectional view of the cylinder assembly 1 of the cylinder 3 that has tubulose, and described cylinder 3 has a closing means 5 distolateral.In this embodiment, closing means 5 is implemented to independently member.Cylinder 3 defines inner chamber 7 with closing means 5, and the described inner chamber raw material of being worked is filled.The work raw material can be liquid, perhaps also can be gaseous state.

The closing means 5 that is made of plastics in this concrete example has the fixedly section 9 of cover tubular, and described fixedly section forms with an end of cylinder 3 and cooperates.Exemplarily, at the connection set 11 of the promising eye structural form of closing means enforcement, but this design proposal is not mandatory requirement.In the bottom 13 of closing means 5, implement the closed channel 17 with respect to longitudinal axis 15 horizontal expansions of cylinder 3.13 whole width extends closed channel 17 in the bottom as through hole, thereby closed channel 17 has the end of two openings.

On longitudinal axis 15 directions of cylinder 3, the bottom 13 that filling channel 19 passes closing means 5 from the inner chamber 7s of cylinder 3 is until entering closed channel 17, and at this, filling channel 19 intersects with closed channel 17.Filling channel 19 but is implemented to blind hole do not passing bottom 13 on the external environment condition direction of cylinder 3, and realizes being connected of closed channel 17 and inner chamber 7.

Fig. 1 shows and is in the cylinder assembly 1 of filling under the installment state.In closed channel 17, be provided with in the axial direction movably closure member 21, this closure member makes being connected between filling channel 19 and the closed channel 17 stay open in filling position.Closure member 21 is implemented to simple cylindric bolt.If closing means 5 is made of plastics, then closure member 21 also is suitable for being made of plastics, and fixes with the material fit Placement at the mounting point.In the production process of closing means 5, closure member 21 just can be injected in the closed channel 17, thereby, in the installation chain of cylinder assembly 1, can not have the member of shortcoming, that is to say the closing means 5 that does not have closure member 21.

End relative with closure member 21 at closed channel 17 schematically shown the filling joint 23 that abuts in hermetically on the closed channel.Thus, will be introduced into cylinder 3 by the work raw material of filling joint 23 inputs, or or rather, in the inner chamber 7 of cylinder 3, wherein can economizing deenergizes prevents the outside bell jar that the work raw material overflows.

Fig. 2 shows for closed channel 17 only needs a simple through hole, and this through hole only needs very little radial structure space.

After filling process finished, closure member deeper was pushed into (as shown in Figure 3) in the closed channel 17 in the axial direction.In the present embodiment, closure member 21 has sealing head 25, and described sealing head clings on the closing means 5 in the outside after arriving sealing station.In this way, seal action also can be confirmed by visual inspection from the outside.As according to the replenishing of the form of implementation of Fig. 1, selectively use two seal rings 27, described seal ring is disposed in the closed channel 17 both sides with respect to filling channel 21.Thus, the longitudinal region of closure member 21 between these two seal rings 27 can be shaped arbitrarily on geometrical construction, and in other words, the inexactness on the size can not exert an influence to the seal action of closure member 21.In order to get rid of the abuse of inlet or closed channel 17, can be arranged to, closure member 21 is fixed on the closing means 5 in non-removable mode, for example by weld part 29 or bonding part.

By the general view of Fig. 1 and Fig. 3 as seen, install the cycle of lacking very much of allowing.In a single day filling process finishes, and closure member 21 just deeper is pushed in the closed channel 17 vertically by unshowned device, and until the realization sealing effect, and simultaneously during this period of time, filling joint 23 can remove from closing means 5.This sequence of motion of instrument or device can side by side or successively be realized in time.

Fig. 4 and Fig. 5 can illustrate, and filling channel 19 not necessarily will be implemented to simply, but filling channel 19 can have different therewith geometrical shapies outside the sealing area of closure member 21 in closed channel 17.Specifically, show the flute profile design proposal of filling channel 19 in the drawings, it provides king-sized transition cross section in the inner chamber 7 of cylinder 3.In addition, this filling channel can be produced with simple especially spraying technology.Be apparent that in this modification the cross section of the cross section of filling channel 19 and closed channel 17 is irrelevant.

Reference numerals list

1 cylinder assembly

3 cylinders

5 closing means

7 inner chambers

9 fixing sections

11 connection sets

13 bottoms

15 longitudinal axis

17 closed channels

19 filling channels

21 closure members

23 fill joint

25 sealing heads

27 seal rings

29 weld parts

Claims

1. cylinder assembly (1), comprise the cylinder (3) that has closing means (5), wherein said cylinder (3) is filled by the work raw material at least one inner chamber (7), described closing means (5) has the filling channel (19) that intersects with closed channel (17), described work raw material not only is present in the described filling channel (19) but also be present in the described closed channel (17) thus, wherein, in described closed channel (17), be furnished with the closure member (21) that can between filling position and closing position, move, it is characterized in that, described closed channel (17) is implemented to through hole and described filling channel (19) is implemented to blind hole, described blind hole feeds closed channel (17) on the one hand, be connected with described inner chamber (7) on the other hand, wherein said closure member (21) seals closed channel (17) in the both sides of described filling channel (19) with the intersection point of described closed channel (17).

2. according to the described cylinder assembly of claim 1, it is characterized in that described closure member (21) is blind bolt.

3. according to claim 1 or 2 described cylinder assemblies, it is characterized in that described closure member (21) has the sealing head (25) that clings on the described closed channel (17) distolateral.

4. according at least one described cylinder assembly in the claim 1 to 3, it is characterized in that described closure member (21) and described closing means (5) welding.

5. according at least one described cylinder assembly in the claim 1 to 4, it is characterized in that described closing means (5) and described closure member (21) are made of plastics or elastomer.

6. according to the described cylinder assembly of claim 5, it is characterized in that described closure member (21) is fixed in the closed channel (17) with the material fit Placement.

7. according at least one described cylinder assembly in the claim 1 to 6, it is characterized in that, between described closure member (21) and described closed channel (17), be furnished with at least one Sealing (27).

8. according at least one described cylinder assembly in the claim 1 to 7, it is characterized in that described filling channel (19) is groove.