CN201175874Y

CN201175874Y - Labyrinth gland structure for longitudinally moving guiding rail of water jet device

Info

Publication number: CN201175874Y
Application number: CNU2008200315942U
Authority: CN
Inventors: 陈波
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-02-18
Filing date: 2008-02-18
Publication date: 2009-01-07
Anticipated expiration: 2018-02-18

Abstract

A labyrinth seal structure for longitudinal moving tracks of water jet cutting equipment is characterized by mainly comprising a main housing plate (1), an inner housing plate (2) and lateral housing plates (3), wherein two ends of the main housing plate (1) are respectively fixed at two ends of a track base (4), the main housing plate (1) is composed of a horizontal board (101) and two downward-facing edge-folds (102), two edges of a sliding board (5) are respectively equipped with a groove (501) matching with the edge-folds (102), the inner housing plate (2) is formed by connecting a horizontal bottom plate (201) to vertical lateral plates (202), the lateral housing plate (3) is formed by connecting a horizontal segment (301), an upward-facing vertical segment (302) and a downward-facing vertical segment (303), and a through hole for dropping impurities is arranged on the horizontal segment (301). The labyrinth seal structure for longitudinal moving tracks of water jet cutting equipment has the advantages of excellent sealing effect, long service life and wide applicable scope.

Description

Labyrinth seal structure of water knife device for longitudinal movement rail

Technical field

The utility model relates to a kind of water knife device, especially a kind of hermetically-sealed construction of drive disk assembly of water knife device, specifically a kind of labyrinth seal structure of water knife device for longitudinal movement rail.

Background technology

At present, water cutter cutting equipment is looked at the eyeball that its particular performances more and more is subjected to all trades and professions, and is developing to maximization and multifunction direction.

For the higher water knife device of required precision, making cutting head move the method that is adopted along the lathe bed length direction generally utilizes guide rail and feed screw nut to realize, in order to guarantee the transmission accuracy of guide rail, prevent the cutting in the cutting process, various impurity pollute guide rail, must carry out Seal Design to guide rail, encapsulating method commonly used at present is the bellows structure that adopts concertina, this structure can satisfy instructions for use substantially for small-sized water knife device (leading screw length is less than 4 meters), but this hermetically-sealed construction can't satisfy instructions for use for large-scale water knife device (leading screw length is more than 4 meters), the one, the thickness after bellows is overlapping is too big, have a strong impact on stroke, the 2nd, insufficient strength is fragile, and the 3rd, rubber parts is easily aging.Therefore, at the maximization water knife device, be badly in need of a kind of novel sealing structure of exploitation.

Summary of the invention

The purpose of this utility model is the problem that the guide rail hermetically-sealed construction is difficult to adapt to the long bolt transmission and sealing effectiveness is poor, the life-span is short at existing water knife device, designs a kind of labyrinth seal structure of water knife device for longitudinal movement rail.

The technical solution of the utility model is:

A kind of labyrinth seal structure of water knife device for longitudinal movement rail, it is characterized in that it is mainly by main cover plate 1, inner cover plate 2 and limit cover plate 3 are formed, the two ends of main cover plate 1 are separately fixed on the two ends of track base 4, main cover plate 1 is made up of level board 101 and two downward flangings 102, the both sides of slide plate 5 are provided with the groove 501 that matches with described flanging 102, described inner cover plate 2 is linked to each other with vertical side plate 202 by horizonal base plate 201 and forms, wherein horizonal base plate 201 is fixed on the horizontal plane of track base 4, the upper edge of vertical side plate 202 exceeds the lower edge of flanging 102 and is positioned at its inboard, described limit cover plate 3 is by horizontal segment 301, vertical section 302 upwards links to each other with downward vertical section 303 and forms, vertical section 302 upwards links to each other with the both sides of horizontal segment 301 respectively with downward vertical section 303, the described downward vertical section 303 and the side of track base 4 are fixedly linked, the installation site of described horizontal segment 301 is lower than horizonal base plate 201, the described vertical section that makes progress 302 is positioned at the outside of slide plate 5, its upper edge is higher than the lower edge of flanging 102, is provided with the through hole that allows impurity fall on described horizontal segment 301.

On described slide plate 5, with described horizontal segment 301 relative position places, be equipped with and brush with slide plate 5 synchronization-moving removings.

Installed inside at described level board 101 has raised line 103, in slide plate 5 corresponding positions pulley 502 is installed, and described pulley 502 contacts with raised line 103.

Have in the installed inside of described level board 101 and to prevent its movable support frame 6 because of gravity sag, dress is cut with scissors mutually with the inside bottom surface of level board 101 in the upper end of this movable support frame 6, and the action roller 601 of its lower end offsets with the horizontal plane or the horizonal base plate 201 of track base 4.

The upper edge of the described vertical section that makes progress 302 is connected with the baby hem 304 that points to slide plate 5.

The beneficial effects of the utility model:

1, the utility model has solved the sealing problem of large-scale water knife device guide rail, and can adopt stainless steel as seal, and the not near life-span is long, and good looking appearance.

Series of advantages such as 2, labyrinth seal structure of the present utility model has good sealing effect, and the impurity cleaning is convenient.

3, the utility model stroke that can make the separate unit water knife device that matches with the turn nut lead screw transmission reaches more than 10 meters, and maximum can reach 14 meters.

Therefore 4, because main cover plate of the present utility model has adopted unsteady supporting construction, the length of labyrinth seal structure of the present utility model can infinitely prolong in theory, has overcome for a long time the problem of the easy sagging distortion of sheet member that exists because of the gravity problem.

5, the utility model both can be used for common water cutter drive mechanism, also was applicable to the water knife device of large-scale turn nut drives structure.

Description of drawings

Fig. 1 is a labyrinth seal structure schematic diagram of the present utility model.

Fig. 2 is the structural representation of level board bracing frame of the present utility model.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described.

As shown in Figure 1, 2.

A kind of labyrinth seal structure of water knife device for longitudinal movement rail, it mainly is made up of main cover plate 1, inner cover plate 2 and limit cover plate 3, the two ends of main cover plate 1 are separately fixed on the two ends of track base 4, main cover plate 1 is made up of level board 101 and two downward flangings 102, as shown in Figure 1, among Fig. 1 two guide rail structures, ball-screw 7 is installed in the track base 4, structure of the present utility model also can be used for the single-rail structure during concrete enforcement, present embodiment is that example is illustrated with two guide rail structures, and the structure of single-rail can be with reference to design.In order to realize labyrinth seal structure, slide plate 5 of the present utility model also must be made respective design, the groove 501 that matches with flanging 102 promptly is set on the limit of slide plate 5, slide plate 5 by thrust slide supporting on guide rail 12, described inner cover plate 2 is linked to each other with vertical side plate 202 by horizonal base plate 201 and forms, wherein horizonal base plate 201 is fixed on the horizontal plane of track base 4, the upper edge of vertical side plate 202 exceeds the lower edge of flanging 102 and is positioned at its inboard, described limit cover plate 3 is by horizontal segment 301, vertical section 302 upwards links to each other with downward vertical section 303 and forms, vertical section 302 upwards links to each other with the both sides of horizontal segment 301 respectively with downward vertical section 303, the described downward vertical section 303 and the side of track base 4 are fixedly linked, the installation site of described horizontal segment 301 is lower than horizonal base plate 201, the described vertical section that makes progress 302 is positioned at the outside of slide plate 5, its upper edge is higher than the lower edge of flanging 102, for the purpose of attractive in appearance, should can be provided with a horizontal bending section 304 that points to slide plate 5 by vertical section 302 upwards, so that whole hermetically-sealed construction looks like an overall structure, in addition, in time discharge from the labyrinth for the ease of the smear metal of splashing in the cutting process, the utility model is provided with the through hole that allows impurity fall on described horizontal segment 301.

During concrete enforcement, in order to increase the debris removal effect, also can be on described slide plate 5, be equipped with slide plate 5 synchronization-moving removings brushes with described horizontal segment 301 relative position places, with moving around of slide plate 5 some are dropped on impurity on the through hole limit and sweep in the through hole and discharge by removing brush.

In order to increase the rigidity of level board 101, the utility model utilizes slide plate 5 as a movable supporting point, for this reason in the installed inside of level board 101 raised line 103, and pulley 502 has been installed in slide plate 5 corresponding positions, pulley 502 is against on the level board 101 all the time to play a supporting role.

For the big-and-middle-sized water knife device of length greater than 4 meters, in order to prevent that level board 101 is because of gravity sag, the utility model has adopted movable supporting, promptly have and prevent its movable support frame 6 because of gravity sag in the installed inside of described level board 101, dress is cut with scissors mutually with the inside bottom surface of level board 101 in the upper end of this movable support frame 6, the action roller 601 of its lower end offsets with the horizontal plane or the horizonal base plate 201 of track base 4, the structural representation of movable support frame 6 as shown in Figure 2, when slide plate 5 moves to described movable support frame 6, pulley 502 on the slide plate 5 is with level board 101 jack-up slightly, the suffered pressure of movable support frame 6 disappear (or very little), edge is at first run into movable support frame 6 and it upwards is pushed in the inner space 13 of slide plate, when slide plate 5 moves apart this movable support frame 6, movable support frame 6 is sagging once more under the effect of gravity, the horizontal plane of the roller of its lower end and track base 4 or horizonal base plate 201 offset and play a supporting role, pulley 502 is remained on the height of level board jack-up can guarantee in the suitable scope that movable support frame 6 just in time vertically props up level board when slide plate 5 leaves the movable support frame of being run into 6.

When the length of turn-screw more than 4 meters the time, in order to prevent that leading screw 7 is because of gravity sag, can adopt turn nut driving mechanism shown in Figure 1, even leading screw 7 keeps motionless, and adding certain pulling force at two stiff ends, it is sagging that leading screw is reduced, and the leading screw movable support frame 8 of the movable support frame that is similar to support level plate 101 6 of some is installed at interval in the bottom of leading screw simultaneously, at this moment, nut 11 links to each other with drive motors 10 on being installed in slide plate 5 by driving-belt 9.

The utility model does not relate to the part prior art that maybe can adopt same as the prior art to be realized.

Claims

1, a kind of labyrinth seal structure of water knife device for longitudinal movement rail, it is characterized in that it is mainly by main cover plate (1), inner cover plate (2) and limit cover plate (3) are formed, the two ends of main cover plate (1) are separately fixed on the two ends of track base (4), main cover plate (1) is made up of level board (101) and two downward flangings (102), the both sides of slide plate (5) are provided with the groove (501) that matches with described flanging (102), described inner cover plate (2) is linked to each other with vertical side plate (202) by horizonal base plate (201) and forms, wherein horizonal base plate (201) is fixed on the horizontal plane of track base (4), the upper edge of vertical side plate (202) exceeds the lower edge of flanging (102) and is positioned at its inboard, described limit cover plate (3) is by horizontal segment (301), vertical section (302) upwards links to each other with downward vertical section (303) and forms, vertical section (302) upwards links to each other with the both sides of horizontal segment (301) respectively with downward vertical section (303), the described downward vertical section (303) and the side of track base (4) are fixedly linked, the installation site of described horizontal segment (301) is lower than horizonal base plate (201), the described vertical section that makes progress (302) is positioned at the outside of slide plate (5), its upper edge is higher than the lower edge of flanging (102), is provided with the through hole that allows impurity fall on described horizontal segment (301).

2, labyrinth seal structure of water knife device for longitudinal movement rail according to claim 1 is characterized in that going up at described slide plate (5), is equipped with the synchronization-moving removing brush of slide plate (5) with described horizontal segment (301) relative position place.

3, labyrinth seal structure of water knife device for longitudinal movement rail according to claim 1, it is characterized in that raised line (103) being arranged in the installed inside of described level board (101), in slide plate (5) corresponding position pulley (502) is installed, described pulley (502) contacts with raised line (103).

4, labyrinth seal structure of water knife device for longitudinal movement rail according to claim 1, it is characterized in that installed inside at described level board (101) has prevents its movable support frame because of gravity sag (6), dress is cut with scissors mutually with the inside bottom surface of level board (101) in the upper end of this movable support frame (6), and the action roller of its lower end (601) offsets with the horizontal plane or the horizonal base plate (201) of track base (4).

5, labyrinth seal structure of water knife device for longitudinal movement rail according to claim 1 is characterized in that the upper edge of the described vertical section that makes progress (302) is connected with the baby hem (304) that points to slide plate (5).