Background technology
In order to simplify the operation that heald frame mounts and dismounts on loom, heald frame hooking together and breaking off relations relative to coupling bar semi-automatically guaranteed by known use jockey.This device is disclosed in US Patent No. 6397897, and wherein, the opening hook portion 12 of coupling bar is mixed with and coordinates with polygon ring 4, is wherein also provided with Lock Part 16, forms the stop part for locking this polygon ring.
This polygon ring 4 is mounted in a part for the jockey on heald frame.This jockey comprises the relative both sides that bar 2 and two plates, 3,3 ', two plates are welded on bar, and polygon ring 4 and pin 5 are crimped on plate 3 and 3 ', are defined for the bearing of polygon ring 4.This polygon ring 4 is provided with center hole, and this center hole holds pin 5 and can shake around pin 5.
Because during the operation of loom, polygon ring carries out continuous print concussion, so this pin and polygon ring usually can wear and tear.If arrange functional gap, can cause again and increase vibration.
Utility model content
The utility model provides a kind of jockey of easy assembly and disassembly.
According to an aspect of the present utility model, provide a kind of jockey for heald frame, comprise two plate, screw, nuts parallel to each other.Described plate is connected to described heald frame, and described plate is all provided with through hole, and described screw and nut is mounted across the through hole in two plates and tightens.This jockey also comprises polygon ring and shaft member, the outside of described polygon ring has at least two relative parallel planes, the inside of described polygon ring has centre bore, described shaft member is inserted in described centre bore and also and between described polygon ring is provided with radial clearance, and described polygon ring, shaft member are consistent with the axis of two described plates.This jockey also comprises two fastener, the outside of described fastener has tapered edge and column part, the outer surface of described through hole has taper chamfering, described fastener inserts described through hole, and tapered edge is coordinated with taper chamfering, described screw and nut inserts described fastener and is fixed to the through hole of described plate by described fastener.When described screw and nut insert described fastener and and then insert described plate time, the surface of described screw, nut, fastener is concordant with the surface of described plate.Thus, jockey of the present utility model is easy to assembly and disassembly.
Preferably, described fastener has longitudinal slit, and described longitudinal slit makes described fastener form opening, thus deformation is with less or larger outer dia.The inside of described fastener is formed as taper.The cone-shaped internal part of described fastener is formed as the angle of 30 °.The outside of described screw has tapered segment and column part, the outside of described nut has tapered segment, the inside of described screw and nut is all formed as column, described nut screwing clamping is to described screw, and the tapered segment of described screw and nut coordinates with the cone-shaped internal part of corresponding described fastener respectively.Thus, jockey of the present utility model can tighten up two parallel plates securely.
According to another aspect of the present utility model, this jockey also comprises bar, and described two plates are welded on two opposite sides of described bar, and the two ends of described bar have screw, and two hold-down screws extend through the screw of described bar, thus secure it to described heald frame.Selectively, two described plates are fixed to described heald frame by the mode of riveted joint.Thus, polygon ring easily, easily can be connected to heald frame by jockey of the present utility model.
Accompanying drawing explanation
For understanding the utility model better, multiple embodiment of the present utility model will be illustrated more clearly in by accompanying drawing below, in the drawing:
Fig. 1 illustrates the front view of the jockey according to the first embodiment of the present utility model, and wherein, jockey is arranged on the crossbeam of heald frame;
Fig. 2 illustrates the decomposition diagram of the jockey according to the first embodiment of the present utility model;
Fig. 3 is the partial sectional view done along the line A-A in Fig. 1;
Fig. 4 illustrates the perspective view of the jockey according to the second embodiment of the present utility model;
Fig. 5 illustrates the decomposition diagram of the jockey according to the second embodiment of the present utility model.
Detailed description of the invention
Embodiment of the present utility model is described below with reference to accompanying drawings.
Fig. 1-3 illustrates the jockey according to the first embodiment of the present utility model.This jockey supporting polygon ring 4, the axes normal of this polygon ring 4 in heald frame 1 principal plane and adopt two hold-down screws 6,6 ' to be fixed to the crossbeam of heald frame.This hold-down screw 6,6 ' extends through the hole of bar 2, is in symmetric position relative to vertical plane.
This jockey comprise two identical plates 3,3 ', screw 5 and nut 8.These two plates 3,3 ' are welded on two opposite sides of bar 2 in parallel to each other, and facing with each other.The outer surface of each plate 3,3 ' is overall leveling, and towards the outside of this jockey.Each plate 3,3 ' has manhole, and the outer surface of this manhole has taper chamfering.The hole of these two plates 3,3 ' has identical axis.This axis is also the axis of polygon ring 4.Screw 5 and nut 8 can be mounted across the manhole on each plate and tighten, and polygon ring 4 are secured to these two plates 3,3 ' thus.
Two plates 3,3 ' and bar 2 are all adopted and are made of a steel.They are limited with internal slot, for holding polygon ring 4 and shaft member 41.
Shaft member 41 is the rings adopting hard ring steel to make, and this shaft member has exterior cylindrical surface and cylindrical surface, and is arranged in the centre bore of polygon ring 4.Be provided with functional radial clearance between shaft member 41 and polygon ring 4, thus polygon ring 4 can be rotated relative to shaft member 41.This polygon ring 4 has outside polygonal cross-section, and it has at least two relative parallel planes, allows claw to block this polygon ring 4.This polygon ring 4 adopts plastic material to make, such as PEEK (polyacetals-ether-one) and molded to be formed.This polygon ring 4 comprises the extension radially extended and the through hole comprised for supplying lubricating oil.
This polygon ring 4 is arranged between two plates 3,3 ', and the axis of this shaft member 41 is consistent with the axis of two plates 3,3 '.
Then, tighten up ring 7 and be inserted in the manhole of a plate 3 and the central opening of shaft member 41, what another was identical tighten up ring 7 ' is inserted in the manhole of another plate 3 ' and the central opening of shaft member 41, and these two tighten up ring 7,7 ' and are mutually symmetrical.
This tightens up ring 7,7 ' and has the tapered edge and column part that extend from its axial vane surface.As shown in Figure 2, a longitudinal slit extends and is parallel to central axis on the outer surface tightening up ring, and this longitudinal slit makes this tighten up ring opening, and can easily be out of shape, to adapt to less or larger outer dia.This tightens up the taper that Ring current distribution opening is 30 °, and that is, the inside of this fastener is formed with the conical section of 30 °.This conical section selectively, the conical section of other angles also can be set, as long as can coordinate with screw 5 and nut 8.
Screw 5 and nut 8 are arranged on and tighten up the conical central hole of ring 7,7 ' or the inside of conical section, and are screwed to together.The opening of this screw 5 has polygonal cross-section, can adopt corresponding tool operation.After tightening, due to the effect of tapered edge, screw 5 and nut 8 apply press power tightening up on ring 7,7 ', make two plates 3,3 ' suppress this shaft member 41.Because the axial width of this shaft member 41 is less times greater than polygon ring 4, so polygon ring 4 can freely rotate around this shaft member 41.
Screw 5 and nut 8 have conical outer shape, can coordinate with the tapered centre opening tightening up ring 7,7 '.Together with screw 5 is secured to nut 8, tighten up ring 7,7 ' due to circular cone contact radial expansion, provide radial direction tighten up power and axially tighten up power.
As shown in Figure 3, the tapered flanges of ring 7,7 ' and the flush with outer surface of two plates 3,3 ' is tightened up.
Figure 4 and 5 illustrate according to the second embodiment of the present utility model.
The difference of this second embodiment and the first embodiment is, the jockey of this embodiment does not comprise bar 2.In this second embodiment, adopt three rivets that two plates 3,3 ' are fixed to heald frame 1.Each rivet is inserted in the through hole of heald frame, and its end enters in the through hole of two plates 3,3 ', and is crimped on this position.
Jockey of the present utility model can be obtained by the existing jockey readjusted in US6397897.Pin in US6397897 can remove and tighten up ring, screw and nut replacement by a pair.