CN101346519B

CN101346519B - Connection assembly

Info

Publication number: CN101346519B
Application number: CN2006800489223A
Authority: CN
Inventors: 尼尔·丹尼斯; 本杰明·胡贺斯
Original assignee: Sandvik Intellectual Property AB
Current assignee: Sandvik Intellectual Property AB
Priority date: 2005-12-23
Filing date: 2006-12-15
Publication date: 2012-02-29
Anticipated expiration: 2026-12-15
Also published as: CN101346519A; UA93535C2

Abstract

A connection assembly for connecting a first member to a second member, such as a wear strip to a portion of an excavating device, is described. The second member has a protruding boss and the first member has a recess complementary in shape to the protruding boss. The first member has an associated first bearing surface and the second member has an associated second bearing surface. The first and second bearing surfaces are, in use, opposed and separated by a tapered gap. The connection assembly further includes a wedge-shaped locking member. The wedge-shaped locking member is sized to locate within the tapered gap and is provided with a driving means to permit tightening or loosening of the locking member within the tapered gap.

Description

Coupling assembling

Technical field

The present invention relates to of the connection of a mechanical part to another.In a preferred embodiment, the present invention relates to a part for example connection of excavator bucket of chafing strip to excavating gear.

Background technology

Known mechanical is excavated with excavating gear and in mining and digging are operated, is stood noticeable wear, weares and teares mainly by to excavator bucket, and the high friction and the abrasion of soil biting instrument and similar component cause.Correspondingly, the part of this member can be only changed in general expectation, and whole device of nonessential replacing or whole parts.

In order to overcome the wearing and tearing of these members, be known that replaceable abrasionproof partly is attached on the edge of or the edge of the parts of high wear is stood in other surface.

The usual method that links the abrasionproof part is simply abrasionproof partly to be welded on the surface of parts.This has following shortcoming, promptly removes the operation more complicated of abrasionproof part of wearing and tearing and consuming time subsequently.Because the time span of parts shut-down operation when changing its abrasionproof part, this causes efficient and productivity ratio reduction inevitably.

Also proposed abrasionproof partly is attached to the mechanical device of device, usually comprised and use pin or bolt.It is invalid that this in practice method often also is proved to be because pin or bolt are easy to abrasionproof partly and the active force that applies on the device that they were attached to be out of shape.The pin or the distortion of bolt make abrasionproof partly be difficult to from the device device isolation usually, thereby cause production time loss and overall efficiency lower once more.

Thereby expectation can partly be attached to the excavating gear parts with abrasionproof with rigid manner and not fluff during operation such as excavator bucket abrasionproof part.Also during operation after it stands stress, it has the ability that can easily remove the abrasionproof part especially in expectation.

The present invention attempts to provide a kind of effective coupling assembling that satisfies these expectations at least in part.

Summary of the invention

According to one aspect of the present invention; A kind of coupling assembling that is used for first member is connected to second member is provided; This second member has the recess that outstanding protuberance and first member have complementary shape, and wherein this first member has the first related area supported and second member has the second related area supported, this first and second area supported in use through tapered gap relatively with separate; This coupling assembling also comprises the locking member of wedge shape; The size of this wedge lock member is suitable for being positioned in this tapered gap, and drive unit, and this device is arranged in tapered gap fastening or loosen locking member.

In a preferred embodiment, first member is that abrasionproof part or chafing strip and second member are the part that the chafing strip of mechanical device part is linked to this, for example excavator bucket.

Further preferably, provide a pair of coupling assembling to be used for that this first member or each first member are attached to second member.

Advantageously, even the present invention allows after abrasionproof partly stands remarkable stress, also easily to remove and change the abrasionproof part.

Brief Description Of Drawings

Pass through case description the present invention referring now to accompanying drawing, wherein:

Fig. 1 is the decomposition view according to coupling assembling of the present invention;

Fig. 2 (a) is the top view through the chafing strip of the coupling assembling connection of Fig. 1;

Fig. 2 (b) is the following view of the chafing strip of Fig. 2 a;

What Fig. 3 (a) illustrated is coupling assembling lateral view before assembling of Fig. 1;

What Fig. 3 (b) illustrated is coupling assembling lateral view after assembling of Fig. 1;

Fig. 4 is the phantom drawing of coupling assembling during inserting engagement member of Fig. 1;

Fig. 5 is the phantom drawing of coupling assembling after inserting engagement member of Fig. 1;

Fig. 6 (a) is the partial sectional view of coupling assembling during the chafing strip of location of Fig. 1;

Fig. 6 (b) is the partial sectional view of coupling assembling after the chafing strip of location of Fig. 1;

Fig. 7 (a), 7 (b) and 7 (c) are the lateral views of the wedge lock member of the coupling assembling that is used for Fig. 1 shown in the sequence during inserting cap screw;

Shown in Fig. 8 is the phantom drawing of coupling assembling during inserting the wedge lock member of Fig. 1;

What Fig. 9 (a) illustrated is the partial sectional view of coupling assembling during driving the wedge lock member of Fig. 1;

What Fig. 9 (b) illustrated is the partial sectional view of coupling assembling after driving the wedge lock member of Fig. 1; With

Figure 10 is the cross sectional view of the coupling assembling of Fig. 1 in use.

The specific embodiment

With reference to each figure, be used for shown in it first member is connected to the for example coupling assembling 10 of excavator bucket 14 of second member such as chafing strip 12.In the drawings, two this coupling assembling 10a and 10b are shown at the opposed end place of chafing strip 12.

Each coupling assembling 10 includes outstanding protuberance 16 that is positioned on the excavator bucket 14 and the complementary recess 18 that is positioned at chafing strip 12.Each outstanding protuberance 16 is substantially rectangle, and is formed by vertical wall 20.Wall 20 almost surrounds interior zone 22.In case wall 20 has a part that chafing strip 12 is connected to excavator bucket 14 just in use towards directed gap 24, the end of chafing strip 12.Along the rectangle that forms protuberance 16 each is long-armed, wall 20 has the outside and inboard.First outside 17 is positioned on the wall part that extends away from gap 24.Second outside 19 is positioned on the relative wall part.The first inboard 21a is positioned on the wall part identical with first outside 17, only towards interior zone 22 orientations.The second inboard 21b is relative with the first inboard 21a, and is positioned on the wall part identical with second outside 19.

Interior zone 22 is substantially rectangle, and gap 24 extends out from rectangle through a galianconism.Except gap 24, the rectangular shape of interior zone 22 is only broken off by little flange 26, and flange 26 extends internally in the position along the first inboard 21a.Wall 20 has the shape of cross section of variation, like what in Figure 10, can see.Especially, first outside 17 of flange 16 and the second inboard 21b are all from first shoulder, 23 outside convergents.Second outside 19 is shaped as contiguous excavator bucket 14 and limits second shoulder 25.In a preferred embodiment, second shoulder 25 comprises the inclined-plane that extend the outside of surrounding wall 20, thereby as weld groove.In this respect, thus the angle of second shoulder 25 can change the weld groove that provides suitable.

Recess 18 can find out that this illustrates the downside of chafing strip 12 best in Fig. 2 (b).Each recess 18 extends internally from the external margin of chafing strip 12, and wherein the corresponding recess 18 of two coupling assembling 10a, 10b is positioned on the relative external margin of independent chafing strip 12.

The size and dimension of each recess 18 is suitable on the wall 20 of the outstanding protuberance 16 that is associated and surrounding wall 20 location.Recess 18 comprises the outer gap 28 on the external margin that is positioned at chafing strip 12.Outer gap 28 has the gap 24 similar sizes with wall 20, and is positioned to alignment gap 24 in use.Recess 18 also comprises supporting member 30.Supporting member 30 is substantially rectangle, and its length is similar to the only about half of of the length of interior zone 22 and width that width is interior zone 22.In use, the supporting member 30 contiguous second inboard 21b are arranged in interior zone 22, and are positioned at the outside in the zone of aiming at gap 24 of interior zone 22.Supporting member 30 comprises in use towards the first directed area supported 32 of flange 26.Supporting member 30 has shape and the complementary sidewall of the second inboard 21b.Supporting member 30 stretches out from the base portion of recess 18.

Outstanding protuberance 16 has engagement member 34 associated therewith.Engagement member 34 is elongated, has the inner 36 and outer end 38.Engagement member 34 has the keyhole 40 that is arranged in a side, and its size and dimension is suitable for around protuberance 26 assembling and engagement lugs 26.Sides relative with keyhole 40 of engagement member 34 are as second area supported 42.The wideest size of the size of engagement member 34 from contiguous inner 36 to the outer end 38 narrow dimension is local at least comes to a point gradually along its length.As a result, when engagement member 34 and supporting member 30 all put in place, between first area supported 32 and second area supported 42, there is tapered gap 44, shown in Fig. 6 a.

Engagement member 34 has the internal thread screws reception hole 46 of 24 orientations towards the gap in use.

Coupling assembling 10 also comprises wedge lock member 48.Locking member 48 can be found out in 7 (c) at Fig. 7 (a) best.

Locking member 48 comprises that the narrowest point at 51 places, edge arrives the wedge lock part 50 of the wideest some extension of contiguous external margin 52 internally.Externally there is dolly dimple 54 in 52 places, edge.Locking member 48 also comprises the bonding part 56 of extending perpendicular to lock portion 50 substantially.Bonding part 56 has central hole 58.

Thereby the size of locking member 48 makes lock portion 50 long enoughs in tapered gap 44, extend.The angle of the wedge of lock portion 50 is similar to the angle of tapered gap 44, thereby when lock portion 50 is inserted into tapered gap 44, lock portion 50 will engage first and second area supporteds 32,42 simultaneously.

Locking member 48 and form are that the drive unit of cap screw 60 is associated.Cap screw 60 has the axle that is arranged through central hole 58.This has the enlargement steps down 64 of contiguous termination, and away from narrow, the male thread portion 66 of termination.This enlargement steps down 64 is arranged to be received in the retaining ring 68, and retaining ring 68 in use is arranged in depression 54.Male thread portion 66 is arranged to be bonded on screw and receives in the hole 46.Retaining ring 38 also can be alternatively have screw thread so that engage enlargement steps down 64 on the surface within it, is used to realize any suitable mode that engages yet can utilize.

In use, engagement member 34 is arranged in interior zone 22, and wherein keyhole 40 is around protuberance 26.This is shown in the Figure 4 and 5.Chafing strip 12 reduces towards excavator bucket 14 then makes outstanding protuberance 16 be arranged in recess 18.Be appreciated that chafing strip should be sent on the protuberance 16 at a certain angle, and is rotated to the position then in order to make the complementary shaped sides of shoulder 23 coupling recess 18.This wherein sees the joint of shoulder 23 best shown in Fig. 6 (a) and 6 (b) in Figure 10.Reversing of chafing strip 12 forms tapered gap 44.The locking member 48 that links cap screw 60 is introduced in outer gap 28 and the gap 24 then, is arranged in screw reception hole 46 thereby lock portion 50 is arranged in the male thread portion 66 of tapered gap 44 and cap screw 60.Therefore fastening cap screw 60 drives lock portion 50 and further gets in the tapered gap 44, and guarantees that chafing strip 12 is firmly connected to excavator bucket 14.Above process has realized removing of chafing strip through reversing.Think that significantly remodeling and modification fall in the scope of the present invention to those skilled in the art.

Claims

1. coupling assembling that is used for first member is connected to second member; Said second member has vertical wall; Said wall surrounds interior zone substantially; And said first member has the recess of complementary shape; Said first member has from the outward extending supporting member of the base portion of said recess, and said supporting member is arranged in use be positioned the interior zone of said second member, and wherein said first member has first area supported and said second member related, that be positioned on the said supporting member and has the second related area supported; Said first and second area supporteds in use through tapered gap relatively with separate; Said coupling assembling also comprises wedge lock member and drive unit, and the size of said wedge lock member is suitable for being positioned in the said tapered gap, and it is fastening or loosen said locking member in tapered gap that said drive arrangement becomes.

2. coupling assembling as claimed in claim 1, wherein said second member comprises removable engagement member, said second area supported is positioned on the surface of said engagement member.

3. coupling assembling as claimed in claim 2; Wherein said engagement member has keyhole on a side; This keyhole be arranged with the flange engages that extends internally from said vertical wall, and said second area supported is disposed on the side relative with keyhole of said engagement member.

4. according to claim 1 or claim 2 coupling assembling, wherein said vertical wall has the gap of in use aiming at said tapered gap.

5. coupling assembling as claimed in claim 4; Wherein said engagement member is a convergent; The narrowest part with the location, gap in said vertical wall; Thereby when said engagement member and supporting member are arranged in said interior zone, between said first and second area supporteds, form said tapered gap.

6. coupling assembling as claimed in claim 1, wherein said wedge lock member have the wedge lock part that is arranged to by said tapered gap reception, and the bonding part of partly extending perpendicular to this wedge lock substantially.

7. coupling assembling as claimed in claim 6; The angle of the wedge of wherein said lock portion is similar to the angle of said tapered gap; Thereby when said lock portion is inserted said tapered gap, make said lock portion engage said first and second area supporteds.

8. like claim 6 or 7 described coupling assemblings; Wherein said drive unit is a cap screw, and said cap screw has the hole in the bonding part that is arranged through said locking member and engages the axle of the reception hole in the end of the narrowest part of said engagement member.

9. coupling assembling as claimed in claim 8, wherein said cap screw have the enlargement steps down of contiguous screw termination and away from the narrow portion of this termination, and said enlargement steps down can be received in the retaining ring of the depression that is arranged in said locking member in the use.

10. coupling assembling as claimed in claim 9, wherein said depression are positioned at the base portion place of the said bonding part of contiguous said lock portion.

11. like claim 9 or 10 described coupling assemblings, narrow of wherein said cap screw is arranged to engage the reception hole in the said engagement member with engage thread.

12. coupling assembling as claimed in claim 1; The side of wherein said vertical wall is shaped as the qualification shoulder; And said recess has the side complementary substantially with the shape of said shoulder, thus in use, and the said engage sides of the complementation of said shoulder and said recess.

13. coupling assembling as claimed in claim 12, the side with the shape flange opposed inside of extending from said vertical wall and said supporting member wherein said wall is complementary substantially.

14. coupling assembling according to claim 1 or claim 2, wherein said first member are the parts that chafing strip and said second member are excavating gears.

15. a linkage that is used for first member is connected to second member, wherein said first member is through being connected to said second member like a pair of coupling assembling that in claim 1, requires to protect.