CN217053519U

CN217053519U - Connecting structure of bucket and bucket rod and excavator

Info

Publication number: CN217053519U
Application number: CN202220404050.6U
Authority: CN
Inventors: 魏佳佳; 孙志国; 张金东
Original assignee: Sany Heavy Machinery Ltd
Current assignee: Sany Heavy Machinery Ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-07-26
Anticipated expiration: 2032-02-24

Abstract

The utility model provides a scraper bowl and connection structure and excavator of fill pole relates to excavator technical field. The connecting structure of the bucket and the bucket rod comprises a first connecting piece, a second connecting piece and a dust ring. The first connecting piece is connected with the bucket rod; the second connecting piece is connected with the bucket; one end face of the second connecting piece is in butt joint with one end face of the first connecting piece to form a butt joint gap; the dust ring is sleeved at the butt joint gap between the first connecting piece and the second connecting piece and used for covering and sealing the butt joint gap; the dust ring is connected with the first connecting piece and/or the second connecting piece through an anti-falling limiting structure; the dust ring is provided with a locking device for tightly connecting the dust ring with the first connecting piece and the second connecting piece. The utility model discloses can solve scraper bowl among the prior art and the dipper be connected the dust ring that terminal surface wearing and tearing, clearance increase lead to and drop, the problem of dustproof inefficacy, have dustproof effectual, firm in connection, the characteristics that can not drop.

Description

Connecting structure of bucket and bucket rod and excavator

Technical Field

The utility model relates to an excavator technical field, concretely relates to scraper bowl and connection structure and excavator of fill pole.

Background

Scraper bowl, dipper connection terminal surface wearing and tearing back clearance constantly increase in the round pin is connected vice, and when the clearance was greater than the dust ring diameter, the dust ring dropped, and gravel and sand etc. get into inside the pinhole, the terminal surface, not only can not play dirt-proof effect, still can lead to wearing and tearing aggravation such as round pin, cover, scraper bowl to rock.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the scraper bowl among the prior art and the dipper defect that the dust ring that the terminal surface wearing and tearing, clearance increase brought dropped, dustproof inefficacy to a scraper bowl and dipper connection structure and excavator are provided.

In order to solve the above problem, an aspect of the present invention provides a connection structure of a bucket and a bucket rod, including a first connection member, a second connection member and a dust ring. Wherein, the first connecting piece is connected with the bucket rod; the second connecting piece is connected with the bucket; one end face of the second connecting piece is in butt joint with one end face of the first connecting piece to form a butt joint gap; the dust ring is sleeved at the butt joint gap between the first connecting piece and the second connecting piece and used for covering and sealing the butt joint gap; the dust ring is connected with the first connecting piece and/or the second connecting piece through an anti-falling limiting structure; the dust ring is provided with a locking device for tightly connecting the dust ring with the first connecting piece and the second connecting piece.

Optionally, the inner wall of the dust ring is provided with an inward protruding insert block, the first connecting piece and/or the second connecting piece are/is provided with a slot matched with the insert block along the circumferential direction, and the insert block is inserted into the slot to form an anti-falling limiting structure.

Optionally, the slot is an annular groove structure continuously arranged along the circumferential direction of the first connecting piece or the second connecting piece.

Optionally, the slots are arranged at intervals along the circumferential direction of the first connecting piece or the second connecting piece, the insertion blocks are arranged at intervals along the circumferential direction of the dust ring, and the insertion blocks and the slots are arranged in a one-to-one correspondence manner.

Optionally, the cross-sectional structure of the slot along the radial direction of the first connecting piece or the second connecting piece is a rectangular slot or a trapezoidal slot.

Optionally, the dustproof ring has a first end and a second end, the locking device comprises a first connecting block protruding from the first end and a second connecting block protruding from the second end, through holes are formed in the first connecting block and the second connecting block, and the first connecting block and the second connecting block are detachably connected through bolts to form a closed annular structure.

Optionally, a concave first step surface is arranged on the inner side of the first connecting block, a convex second step surface is arranged on the inner ring of the second connecting block, and when the first end and the second end are connected, the first step surface and the second step surface are in clamping fit.

Optionally, the first connecting piece and the second connecting piece are both hollow cylinder structures, and the first connecting piece and the second connecting piece are butted and connected through a pin shaft.

Optionally, both ends of the first connecting piece are connected with a second connecting piece and a dust ring.

The utility model discloses another aspect provides an excavator, including any one of above technical scheme the connection structure of scraper bowl and fill pole.

The utility model has the advantages of it is following:

1. utilize the technical scheme of the utility model, because of the dustproof circle covers the butt joint clearance between first connecting piece and the second connecting piece, can play sealed effect to the butt joint clearance, effectually prevent that impurity such as gravel and sand from getting into the butt joint clearance between first connecting piece and the second connecting piece, playing dirt-proof effect. Because of being connected through anticreep limit structure between dust ring and first connecting piece or dust ring and the second connecting piece, even bucket in the pin joint is vice, the wearing and tearing back clearance constantly increases of dipper connection terminal surface, under anticreep limit structure's limiting displacement, the dust ring also can not drop, still can prevent in the butt joint clearance between entering first connecting piece and the second connecting piece such as gravel and sand or stones or even in the connecting hole between them, play dirt-proof effect, avoid wearing and tearing aggravation such as connecting pin and wear-resisting cover, guarantee that the long-term firm connection of bucket does not rock. Because the dustproof ring is provided with the locking device, the dustproof ring is firmly connected with the first connecting piece and the second connecting piece, and the long-term effective effect of the dustproof ring is ensured.

2. The insert of dust ring and the slot of first connecting piece, or the insert of dust ring and the slot of second connecting piece are pegged graft and are cooperated and constitute anticreep limit structure, its simple structure to can effectually prevent that the dust ring from droing, guarantee the dustproof effect of dust ring.

3. The connection can be dismantled through locking device realization in the both ends of dust ring, can guarantee that the dust ring is fixed firm, and convenient the change again only needs to unpack locking device apart and can take off the dust ring, need not to dismantle first connecting piece and second connecting piece, dismantles process convenient and fast, labour saving and time saving, dust ring simple structure, the cross-section is little, and is with low costs.

4. First connecting block and second connecting block set up first step face and the second step face of mutually supporting respectively, when the first end and the second end of dust ring are connected, can play limiting displacement on the one hand for dust ring both ends are easily fixed a position, improve the assembly precision, and on the other hand can increase the area of contact between first connecting block and the second connecting block, further improves the steadiness that dust ring connects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 shows a schematic structural diagram of a connection structure of a bucket and a bucket rod provided by the present invention;

FIG. 2 shows a partial enlarged view at A in FIG. 1;

FIG. 3 shows a cross-sectional view of a first embodiment of a second connector;

FIG. 4 shows a schematic structural view of a first embodiment of a dust ring in cooperation with FIG. 3;

FIG. 5 shows a cross-sectional view of a second embodiment of a second connector;

FIG. 6 shows a schematic structural view of a second embodiment of the dust ring in cooperation with FIG. 5;

figure 7 shows a partial cross-sectional view of a socket of another configuration.

Description of reference numerals:

1. a first connecting member; 11. a first connection hole; 2. a second connecting member; 21. a second connection hole; 3. a dust ring; 31. a first connection block; 311. a first step surface; 32. a second connecting block; 321. a second step surface; 4. an anti-drop limit structure; 41. inserting slots; 42. and (5) inserting the block.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

For convenience of describing the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings and specific examples, but the examples should not be construed as limiting the present invention.

Example 1

A connecting structure of a bucket and a bucket rod refers to fig. 1-7, and comprises a first connecting piece 1, a second connecting piece 2 and a dust ring 3. Wherein, the first connecting piece 1 is connected with the bucket rod; the second connecting piece 2 is connected with the bucket; one end surface of the second connecting piece 2 is in butt joint with one end surface of the first connecting piece 1 to form a butt joint gap; the dust ring 3 is sleeved at the butt joint gap between the first connecting piece 1 and the second connecting piece 2 and used for covering and sealing the butt joint gap. The dust ring 3 and the first connecting piece 1 and/or the dust ring 3 and the second connecting piece 2 are connected through an anti-falling limiting structure 4; the dust ring 3 is provided with a locking device for tightly connecting the dust ring 3 with the first connecting piece 1 and the second connecting piece 2.

Utilize the technical scheme of the utility model, because of the dust ring 3 covers the butt joint clearance between first connecting piece 1 and the second connecting piece 2 simultaneously, can play sealed effect to the butt joint clearance, effectually prevent that impurity such as gravel and sand from getting into the butt joint clearance between first connecting piece 1 and the second connecting piece 2, play dirt-proof effect. Because of being connected through anticreep limit structure 4 between dust ring 3 and first connecting piece 1 or dust ring 3 and the second connecting piece 2, even bucket in the pin joint is vice, the continuous increase in clearance after the wearing and tearing of dipper connection terminal surface, under anticreep limit structure 4's limiting displacement, dust ring 3 can not drop yet, still can prevent into the butt joint clearance of first connecting piece 1 and second connecting piece 2 such as gravel and sand and stones and in first connecting hole 11 and the second connecting hole 21 even, play dirt-proof effect, avoid wearing and tearing aggravation such as connecting pin and wear-resisting cover, guarantee that the long-term firm connection of bucket does not rock. Because of the dust ring 3 is provided with the locking device, the dust ring 3 is firmly connected with the first connecting piece 1 and the second connecting piece, and the long-term effective effect of the dust ring 3 is ensured.

Specifically, the first connecting piece 1 is a bucket rod support and is used for connecting a bucket rod; the second attachment 2 is a bucket attachment for attaching a bucket. First connecting piece 1 and second connecting piece 2 are hollow cylinder structure, refer to fig. 1, and first connecting piece 1 has first connecting hole 11, and second connecting piece 2 has second connecting hole 21, and first connecting piece 1 and second connecting piece 2 dock to wear to establish through the round pin axle and realize connecting in first connecting hole 11 and second connecting hole 21.

Specifically, the inner wall of the dust ring 3 is provided with an inward protruding insertion block 42, the first connecting piece 1 and/or the second connecting piece 2 are/is provided with a slot 41 matched with the insertion block 42 along the circumferential direction, and the insertion block 42 is inserted into the slot 41 to form the anti-falling limiting structure 4. That is to say, the slot 41 may be separately provided on the first connecting member 1, or may be separately provided on the second connecting member 2, of course, the slot 41 may also be provided on both the first connecting member 1 and the second connecting member 2, and correspondingly, the two corresponding slots 41 on both sides of the dust ring 3 are provided with the insertion blocks 42. In this embodiment, referring to fig. 1, the slot 41 is disposed on the second connecting member 2. Specifically, referring to fig. 3, the insertion groove 41 is an annular groove structure continuously provided in the circumferential direction of the second connector 2. Accordingly, referring to fig. 4, the insert block 42 of the dust ring 3 is an annular block structure continuously arranged along one circle of the inner ring of the dust ring 3.

Of course, as an alternative embodiment, referring to fig. 5, the slots 41 are provided in plurality at intervals along the circumferential direction of the first connecting member 1 or the second connecting member 2, and correspondingly, referring to fig. 6, the insertion blocks 42 are provided in plurality at intervals along the circumferential direction of the dust ring 3, and the insertion blocks 42 are provided in one-to-one correspondence with the slots 41. Preferably, the slots 41 are equally spaced.

Specifically, in this embodiment, the cross-sectional structure of the slot 41 along the radial direction of the second connector 2 is a rectangular slot. Of course, as an alternative embodiment, the slot 41 may have other structures, for example, referring to fig. 7, the cross-sectional structure of the slot 41 along the radial direction of the second connector 2 is a trapezoidal slot.

Further, referring to fig. 4 or fig. 6, the dust ring 3 has a first end and a second end, the locking device includes a first connecting block 31 protruding from the first end and a second connecting block 32 protruding from the second end, through holes are provided on the first connecting block 31 and the second connecting block 32, the first connecting block 31 and the second connecting block 32 are detachably connected through bolts, and the dust ring 3 is made to form a closed annular structure. The connection can be dismantled through locking device realization in the both ends of dust ring 3, can guarantee that dust ring 3 is fixed firm, and convenient the change again, only need unpack locking device apart and can take off dust ring 3, need not to dismantle first connecting piece 1 and second connecting piece 2, dismantlement process convenient and fast, labour saving and time saving, in addition, dust ring 3 simple structure, the sectional area is little, and is with low costs.

Further, as a preferred embodiment, in this embodiment, the inner side of the first connecting block 31 is provided with a concave first step surface 311, the inner ring of the second connecting block 32 is provided with a convex second step surface 321, and when the first end and the second end are connected, the first step surface 311 and the second step surface 321 are engaged. First connecting block 31 and second connecting block 32 set up first step face 311 and second step face 321 of mutually supporting respectively, when the first end and the second end of dust ring 3 are connected, can play limiting displacement on the one hand for 3 both ends of dust ring are easily fixed a position, improve the assembly precision, on the other hand, can increase the area of contact between first connecting block 31 and the second connecting block 32, further improve the steadiness that 3 dirt rings connect.

According to actual operating environment, refer to fig. 1, the both ends of first connecting piece 1 all are connected with second connecting piece 2, consequently, for both ends all prevent dust, the both ends of first connecting piece 1 and two butt joint clearance departments of two second connecting pieces 2 have all set up dust ring 3.

Example 2

An excavator comprising the connecting structure of the bucket and the stick described in embodiment 1.

According to the above description, the present patent application has the following advantages:

1. the dustproof ring 3 covers the butt joint gap between the first connecting piece 1 and the second connecting piece 2, so that the dustproof effect is good;

2. the dust ring 3 is connected with the first connecting piece 1 or the dust ring 3 is connected with the second connecting piece through the anti-falling limiting structure 4, and the dust ring 3 cannot fall off when the abrasion gap between the first connecting piece 1 and the second connecting piece 2 is increased;

3. the dust ring 3 is provided with a locking device, is firmly connected and is easy to disassemble.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A connecting structure of a bucket and a bucket rod is characterized by comprising:

the first connecting piece (1) is connected with the bucket rod;

a second attachment (2) connected to the bucket; one end face of the second connecting piece (2) is in butt joint with one end face of the first connecting piece (1) to form a butt joint gap;

the dust ring (3) is sleeved at the butt joint gap between the first connecting piece (1) and the second connecting piece (2) and used for covering and sealing the butt joint gap; the dust ring (3) and the first connecting piece (1) and/or the dust ring (3) and the second connecting piece (2) are connected through an anti-falling limiting structure (4);

the dustproof ring (3) is provided with a locking device used for fixedly connecting the dustproof ring (3) with the first connecting piece (1) and the second connecting piece (2).

2. The connecting structure of the bucket and the bucket rod as claimed in claim 1, wherein an inward-protruding insert block (42) is arranged on the inner wall of the dust ring (3), an insert groove (41) matched with the insert block (42) is arranged on the first connecting piece (1) and/or the second connecting piece (2) along the circumferential direction of the first connecting piece and/or the second connecting piece, and the insert block (42) is inserted into the insert groove (41) to form the anti-falling limiting structure (4).

3. The connecting structure of the bucket and the rod as claimed in claim 2, wherein the insertion slot (41) is an annular groove structure continuously arranged along the circumference of the first connecting member (1) or the second connecting member (2).

4. The connecting structure of the bucket and the bucket rod according to claim 2, wherein the insertion grooves (41) are provided in plurality at intervals along the circumferential direction of the first connecting piece (1) or the second connecting piece (2), the insertion blocks (42) are provided in plurality at intervals along the circumferential direction of the dust ring (3), and the insertion blocks (42) and the insertion grooves (41) are arranged in a one-to-one correspondence manner.

5. A connecting structure of a bucket and a stick according to claim 2, wherein the sectional structure of the insertion groove (41) along the radial direction of the first connecting member (1) or the second connecting member (2) is a rectangular groove or a trapezoidal groove.

6. The connecting structure of the bucket and the bucket rod of claim 1, wherein the dust ring (3) is provided with a first end and a second end, the locking device comprises a first connecting block (31) convexly arranged at the first end and a second connecting block (32) convexly arranged at the second end, through holes are respectively formed in the first connecting block (31) and the second connecting block (32), and the first connecting block (31) and the second connecting block (32) are detachably connected through bolts, so that the dust ring (3) forms a closed annular structure.

7. A connecting structure of a bucket and a bucket rod according to claim 6, wherein a concave first step surface (311) is arranged on the inner side of the first connecting block (31), a convex second step surface (321) is arranged on the inner ring of the second connecting block (32), and when the first end and the second end are connected, the first step surface (311) and the second step surface (321) are in clamping fit.

8. The connecting structure of the bucket and the bucket rod as claimed in claim 1, wherein the first connecting piece (1) and the second connecting piece (2) are both hollow cylindrical structures, and the first connecting piece (1) and the second connecting piece (2) are butted and connected through a pin shaft.

9. A connecting structure of a bucket and a stick according to claim 1, characterized in that the second connecting member (2) and the dust ring (3) are connected to both ends of the first connecting member (1).

10. An excavator, comprising the bucket and stick connecting structure of any one of claims 1 to 9.