CN209195899U - A kind of dedicated pin shaft of excavator - Google Patents

Abstract

The utility model discloses a kind of dedicated pin shafts of excavator, including connecting rod and fixture block, support roller is welded in the middle part of the connecting rod, installation is rotatably equipped with bar inside the mounting groove, the outer end of the mounting groove is equipped with fixing sleeve, the fixture block has setting in the left and right sides of support roller, the fixture block and the outer surface of support roller are enclosed with wear-resistant pad, the connecting rod is through being provided in the mounting hole inside fixture block, and the outer surface of connecting rod and the inner wall of mounting hole are bonded to each other, there is support pearl in the inside of the fixture block in installation by adhering, and support pearl is rolling structure in connecting rod, the outside of the fixture block is nested with isolation board, and the inner surface of isolation board is pasted with rubber pad.The dedicated pin shaft of the excavator, solve the dedicated pin shaft support roller of excavator used at present and fixture block is easy to appear abrasion, and the pin shaft service life is caused to be lowered significantly, and inconvenient coating lubricating oil, is easy to appear and spills wasting problem.

Description

A kind of dedicated pin shaft of excavator

Technical field

The utility model relates to pin shaft technical field, specially a kind of dedicated pin shaft of excavator.

Background technique

Common connecting component in pin shaft mechanical equipment, usually going out " convex " type structure and one for one is in " recessed " type knot The part of structure is attached fixation, while both guaranteeing to be able to carry out rotation, plays hinged effect, pin shaft be on excavator not The component that can lack；

The dedicated pin shaft of excavator used at present rubs out between connected part and support roller and fixture block when in use It now wearing, causes the pin shaft service life to be lowered significantly, and in coating lubricating oil, lubricating oil, which is easy to appear, to be spilt, it causes to waste, and It is not convenient enough to smear, and therefore, the utility model provides a kind of dedicated pin shaft of excavator, set forth above to solve the problems, such as.

Utility model content

It is mentioned above in the background art to solve the purpose of this utility model is to provide a kind of dedicated pin shaft of excavator The dedicated pin shaft support roller of excavator used at present and fixture block are easy to appear abrasion, and the pin shaft service life is caused to be lowered significantly, and Inconvenient coating lubricating oil is easy to appear and spills wasting problem.

To achieve the above object, the utility model provides the following technical solutions: a kind of dedicated pin shaft of excavator, including connection Bar and fixture block are welded with support roller in the middle part of the connecting rod, and the left and right ends of connecting rod offer mounting groove, institute It states installation inside mounting groove and is rotatably equipped with bar, and bar is fixed on the inside of mounting groove, the mounting groove by fixing axle Outer end fixing sleeve is installed, and fixing sleeve is to be threadedly coupled with the connection type of connecting rod, and the fixture block is on a left side for support roller There are a setting in right two sides, and fixture block and connecting rod constitute rotational structure, and the outer surface of the fixture block and support roller is enclosed with Wear-resistant pad, and the surface concave-convex surface structure of wear-resistant pad, the connecting rod through being provided in the mounting hole inside fixture block, and The outer surface of connecting rod and the inner wall of mounting hole are bonded to each other, and there is support pearl in the inside of the fixture block in installation by adhering, and props up It is rolling structure that pearl, which is supportted, in connecting rod, and the outside of the fixture block is nested with isolation board, and the inner surface of isolation board is pasted with Rubber pad is communicated with the oil filler point being provided with inside fixture block above the mounting hole, and the outer end engaging of oil filler point is equipped with Sealing-plug.

Preferably, the support roller and connecting rod constitute "+" type structure, and the outer diameter of support roller and fixture block inner end Outer diameter is equal.

Preferably, the fixing sleeve is in barrel-like structure, and the inner end of fixing sleeve is bonded to each other with bar, and the width of bar Spend the outer diameter that size is less than connecting rod.

Preferably, center symmetric setting of the fixture block about connecting rod, and the center line phase mutual respect of fixture block and connecting rod It closes.

Preferably, the isolation board and fixture block constitute rotational structure, and the vertical section of fixture block is in " convex " type structure.

Preferably, the isolation board is bonded to each other with support pearl, and pearl is supported angularly to be distributed about the center of fixture block.

Compared with prior art, the utility model has the beneficial effects that the dedicated pin shaft of the excavator, solves current use Excavator dedicated pin shaft support roller and fixture block be easy to appear abrasion, cause the pin shaft service life to be lowered significantly, and be inconvenient to apply Lubricating oil is smeared, is easy to appear and spills wasting problem；

1, support roller is effectively reduced by wear-resistant pad and abrasion that fixture block is subject to, while branch is increased by fixing axle Support the frictional force between roller and fixture block and connected part, make to rotate between connecting rod and fixture block it is more stable, to reduce The abrasion that wear-resistant pad is subject to, and then increase the service life of pin shaft；

2, by lubricating oil is injected into oil filler point, since oil filler point is connected with mounting hole, to pass through connecting rod Rotation, is uniformly applied lubricating oil in connecting rod, easy to operate, easy to use, while avoiding note by sealing-plug The phenomenon that oilhole is blocked by sundries；

3, bar is blocked by fixing sleeve, ensure that the stability that bar squeezes fixture block, thus ensure that by The stability connected between two parts of connection avoids the phenomenon that shaking, while fixing sleeve is in barrel-like structure, is guaranteed The phenomenon that threaded portion of itself and connecting rod link position is not in corrosion.

Detailed description of the invention

Fig. 1 is that the utility model faces the schematic diagram of the section structure；

Fig. 2 is the utility model overlooking structure diagram；

Fig. 3 is the utility model bar and connecting rod attachment structure schematic diagram；

Fig. 4 is the utility model oil filler point and fixture block attachment structure schematic diagram.

In figure: 1, connecting rod；2, support roller；3, mounting groove；4, fixing axle；5, bar；6, fixing sleeve；7, fixture block；8, pacify Fill hole；9, pearl is supported；10, isolation board；11, rubber pad；12, oil filler point；13, sealing-plug；14, wear-resistant pad.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of dedicated pin shaft of excavator, including connecting rod 1, support roller 2, mounting groove 3, fixing axle 4, bar 5, fixing sleeve 6, fixture block 7, mounting hole 8, support pearl 9, isolation board 10, rubber pad 11, oil filler point 12, sealing-plug 13 and wear-resistant pad 14, the middle part of connecting rod 1 are welded with support roller 2, and the left and right of connecting rod 1 Both ends offer mounting groove 3, and installation is rotatably equipped with bar 5 inside mounting groove 3, and bar 5 is fixed on peace by fixing axle 4 The inside of tankage 3, the outer end of mounting groove 3 is equipped with fixing sleeve 6, and the connection type of fixing sleeve 6 and connecting rod 1 is screw thread company It connects, fixture block 7 has setting in the left and right sides of support roller 2, and fixture block 7 and connecting rod 1 constitute rotational structure, fixture block 7 and support The outer surface of roller 2 is enclosed with wear-resistant pad 14, and the surface concave-convex surface structure of wear-resistant pad 14, and connecting rod 1 is through opening up In mounting hole 8 inside fixture block 7, and the outer surface of connecting rod 1 and the inner wall of mounting hole 8 are bonded to each other, and the inside of fixture block 7 is in Installation by adhering has support pearl 9, and supporting pearl 9 is rolling structure in connecting rod 1, and the outside of fixture block 7 is nested with isolation board 10, And the inner surface of isolation board 10 is pasted with rubber pad 11, the top of mounting hole 8 is communicated with the oil filler point being provided with inside fixture block 7 12, and the outer end engaging of oil filler point 12 is equipped with sealing-plug 13；

Middle support roller 2 and connecting rod 1 constitute "+" type structure, and the outer diameter of support roller 2 and 7 inner end of fixture block picture 1-4 Outer diameter it is equal, ensure that the stability for connecting part with fixture block 7 by connecting rod 1, fixing sleeve 6 is in barrel-like structure, And the inner end of fixing sleeve 6 is bonded to each other with bar 5, and the width dimensions of bar 5 are less than the outer diameter of connecting rod 1, is guaranteed Fixture block 7 can be mounted and dismounted smoothly, be occurred by the thread-like structure that fixing sleeve 6 avoids connecting rod 1 outer surface rotten Erosion, cause fixing sleeve 6 can not normal use the problem of, center symmetric setting of the fixture block 7 about connecting rod 1, and fixture block 7 with connect The center line of bar 1 overlaps, and ensure that stability when connecting rod 1 and fixture block 7 rotate, and isolation board 10 and fixture block 7, which are constituted, to be turned Dynamic structure, and the vertical section of fixture block 7 is in " convex " type structure, avoids isolation board 10 and falls off, at the same reduce fixture block 7 with It is connected the damage being subject between part by friction, increases the service life of fixture block 7, isolation board 10 and support pearl 9 are mutually pasted It closes, and pearl 9 is supported angularly to be distributed about the center of fixture block 7, ensure that the rotation that isolation board 10 can be stable.

Working principle: in pin shaft dedicated using the excavator, connecting rod 1 is inserted into two parts for needing to connect first In the hole of internal reservation, then the fixture block 7 that isolation board 10 is nested with outside 2 is separately mounted to the both ends of connecting rod 1, make to connect The support roller 2 at 1 middle part of extension bar and the fixture block 7 at both ends are respectively installed in the hole of two parts, are made isolation board 10 and are inserted with The surface of the part of fixture block 7 fits, while guaranteeing that isolation board 10 is contacted with support pearl 9, reduces fixture block 7 by isolation board 10 Then bar 5 is rotated 90 °, squeezes bar 5 to fixture block 7 by the abrasion that side is subject to, to complete to 7 position of fixture block Fixation, then the mode that fixing sleeve 6 is connected through a screw thread is fixed on to the outer end of connecting rod 1, make fixing sleeve 6 to bar 5 into Row blocks, and avoids the phenomenon that bar 5 is freely rotated, fixture block 7 is caused to loosen, by the fixing sleeve for being in barrel-like structure 6, the position for guaranteeing that connecting rod 1 is threadedly coupled with fixing sleeve 6 will not be corroded, and ensure that the safety in use process, By the wear-resistant pad 14 of outer surface concave-convex surface structure, the friction between support roller 2 and fixture block 7 and connected part is increased Power ensure that the stability rotated between connecting rod 1 and fixture block 7, while reduce support roller 2 and abrasion that fixture block 7 is subject to, increase Add the service life of support roller 2 and fixture block 7, so that the service life of the pin shaft is increased, it, will when needing to add lubricating oil Sealing-plug 13 disassembles, and lubricating oil is injected into oil filler point 12, oil filler point 12 is connected with mounting hole 8, to pass through connection The rotation of bar 1 makes the lubricating oil inside oil filler point 12 uniformly be applied to the outer surface of connecting rod 1, less lubricating oil it is outer Leakage, easy to use, here it is the application methods of the dedicated pin shaft of the excavator.

The standardized element that the utility model uses can commercially, shaped piece according to specification and attached drawing Record can carry out customized, the specific connection type of each part is all made of in the prior art mature bolt, rivet, weldering Equal conventional means are connect, mechanical, part and equipment are all made of in the prior art, conventional model, in addition circuit connection is using existing Conventional connection type in technology, this will not be detailed here, and the content being not described in detail in this specification belongs to this field profession The prior art well known to technical staff.

Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all It is included within the scope of protection of this utility model.

Claims (6)

1. a kind of dedicated pin shaft of excavator, including connecting rod (1) and fixture block (7), it is characterised in that: in the connecting rod (1) Portion is welded with support roller (2), and the left and right ends of connecting rod (1) offer mounting groove (3), in the mounting groove (3) Portion's installation is rotatably equipped with bar (5), and bar (5) is fixed on the inside of mounting groove (3), the installation by fixing axle (4) The outer end of slot (3) is equipped with fixing sleeve (6), and fixing sleeve (6) is to be threadedly coupled with the connection type of connecting rod (1), the folder Block (7) has setting in the left and right sides of support roller (2), and fixture block (7) and connecting rod (1) constitute rotational structure, the fixture block (7) it is enclosed with wear-resistant pad (14) with the outer surface of support roller (2), and the surface concave-convex surface structure of wear-resistant pad (14), institute Connecting rod (1) is stated through being provided in the internal mounting hole (8) of fixture block (7), and the outer surface of connecting rod (1) and mounting hole (8) inner wall is bonded to each other, and the inside of the fixture block (7) has support pearl (9) in installation by adhering, and pearl (9) is supported to connect It is rolling structure on bar (1), the outside of the fixture block (7) is nested with isolation board (10), and the inner surface of isolation board (10) is viscous It posts rubber pad (11), is communicated with above the mounting hole (8) and is provided with the internal oil filler point (12) of fixture block (7), and oiling The outer end engaging in hole (12) is equipped with sealing-plug (13).

2. the dedicated pin shaft of a kind of excavator according to claim 1, it is characterised in that: the support roller (2) and connecting rod (1) "+" type structure is constituted, and the outer diameter of support roller (2) is equal with the outer diameter of fixture block (7) inner end.

3. the dedicated pin shaft of a kind of excavator according to claim 1, it is characterised in that: the fixing sleeve (6) is in tubbiness knot Structure, and the inner end of fixing sleeve (6) is bonded to each other with bar (5), and the width dimensions of bar (5) are less than the outer of connecting rod (1) Diameter size.

4. the dedicated pin shaft of a kind of excavator according to claim 1, it is characterised in that: the fixture block (7) is about connecting rod (1) center symmetric setting, and fixture block (7) and the center line of connecting rod (1) overlap.

5. the dedicated pin shaft of a kind of excavator according to claim 1, it is characterised in that: the isolation board (10) and fixture block (7) rotational structure is constituted, and the vertical section of fixture block (7) is in " convex " type structure.

6. the dedicated pin shaft of a kind of excavator according to claim 1, it is characterised in that: the isolation board (10) and support pearl (9) it is bonded to each other, and pearl (9) is supported angularly to be distributed about the center of fixture block (7).