CN217177142U

CN217177142U - Middle hinged pin shaft device of loader

Info

Publication number: CN217177142U
Application number: CN202123156151.0U
Authority: CN
Inventors: 戚庆芳; 孙家宁; 车洪强; 樊国芳
Original assignee: China Huaye Group Co Ltd
Current assignee: China Huaye Group Co Ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-08-12
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses an articulated round pin axle device in middle of loader installs on the loader, the loader includes the loader parent, down the loader parent, sets up go up the loader parent with down pinhole in the loader parent and insert round pin axle in the pinhole, wherein, articulated round pin axle device includes first axle sleeve and second axle sleeve in the middle of the loader, first axle sleeve sets up go up loader parent department and surround in the pinhole the round pin axle, the second axle sleeve sets up down loader parent department in and surround the round pin axle in the pinhole the round pin axle. The middle hinged pin shaft device of the loader is convenient to maintain, saves cost, prolongs service life of equipment and improves working efficiency.

Description

Middle hinged pin shaft device of loader

Technical Field

The utility model relates to a middle articulated pin shaft device of loader.

Background

The middle hinged pin shaft of the existing loader frequently rubs with a pin hole of a loader parent body in the long-term use process to increase the gap of a bearing at the middle hinged position, and a pin sleeve is not arranged in the pin hole of the loader parent body at the position, so that a fixed pin bolt and a fixed flange bolt can be cut off after a fault occurs, the pin shaft and the pin hole are scrapped, related spare parts are damaged, the normal use of equipment is influenced, and the maintenance is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an invention purpose is scrapped and relevant spare part damages in order to solve round pin axle and pinhole, and it influences equipment normal use and maintains inconvenient technical problem.

In order to realize the above-mentioned purpose, the utility model provides a following technical scheme, a articulated round pin axle device in middle of loader installs on the loader, the loader includes the loader parent, down the loader parent, sets up go up the loader parent with down pinhole in the loader parent and insert round pin axle in the pinhole, wherein, articulated round pin axle device includes first axle sleeve and second axle sleeve in the middle of the loader, first axle sleeve sets up go up loader parent department and surround in the pinhole round pin axle, the second axle sleeve sets up down loader parent department in and surround the round pin axle.

As a further aspect of the present invention, the diameters of the pin holes at the upper and lower loader parent bodies are larger than the diameters of the other portions of the pin holes.

As a further aspect of the present invention, the upper end cover of the loader is provided with a grease nipple, the lower end cover of the loader is provided with a lower grease nipple, the pin is provided with a first grease hole and a second grease hole in the vertical direction, the first grease hole is located in the first shaft sleeve, and the second grease hole is located in the second shaft sleeve.

As a further aspect of the utility model, first yellow oilhole is the oil filler point, second yellow oilhole is the oil outlet.

As a further aspect of the utility model first axle sleeve with first clearance has between the round pin axle the second axle sleeve with the second clearance has between the round pin axle, first axle sleeve with the inboard of second axle sleeve is provided with the oil storage tank respectively, and the butter passes through respectively first clearance with the second clearance is saved first axle sleeve with the second axle sleeve in the oil storage tank.

As a further aspect of the present invention, the loader further includes a rear frame, the rear frame is disposed between the upper loader parent and the lower loader parent, the pin hole is passed through the rear frame a third grease hole is disposed in the pin shaft, the third grease hole is disposed in the vertical direction with the upper grease nipple and the lower grease nipple are disposed on an oil passage, the third grease hole is disposed in the rear frame inside the pin hole.

As a further aspect of the present invention, the first grease hole and the third grease hole communicate with each other, and the second grease hole does not communicate with each other.

The hinge pin shaft device in the middle of the loader increases the shaft sleeve at the pin hole of the loader parent and the contact position of the pin shaft, so that the hard friction between the hinge pin shaft device and the hinge pin shaft device is greatly reduced, the service life of the hinge pin shaft device in the middle of the loader can be prolonged, and only the shaft sleeve needs to be replaced after the loader breaks down. In addition, increase the oil filler point in round pin axle upper end, round pin axle lower extreme increases the oil outlet, can the oiling lubricate when daily maintenance, has saved maintenance time promptly, has reduced cost of maintenance again, has improved equipment utilization.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of a middle hinge pin assembly of a loader.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The invention is further described with reference to the accompanying drawings and the detailed description.

The loader comprises two loader parent bodies 3, a rear frame 4, a pin shaft 9, an upper end cover 5 and a lower end cover 6. The rear frame 4 is disposed between the two loader parent bodies 3, pin holes are provided in the loader parent bodies 3 and the rear frame 4, and the pin shafts 9 are inserted into the pin holes. An upper end cover 5 is attached to the upper side of the loader main body 3, and a lower end cover 6 is attached to the lower side of the loader main body 3. The upper end cap 5 is fixed to the upper loader main body 3 by inserting bolts 11 through bolt holes 12, and the lower end cap 6 is fixed to the lower loader main body 3 by inserting bolts 11 through bolt holes 12.

The loader comprises a middle hinged pin shaft device which comprises a shaft sleeve 1 and a shaft sleeve 8, wherein the first shaft sleeve 1 is arranged in a pin hole at the position of the loader parent body at the upper side and surrounds a pin shaft 9, and the second shaft sleeve 8 is arranged in a pin hole at the position of the loader parent body at the lower side and surrounds the pin shaft 9, so that friction between the second shaft sleeve and the pin hole of the loader parent body 3 is reduced. Only need change the axle sleeve after breaking down can, the device easy maintenance practices thrift the cost, extension equipment life improves work efficiency.

In order to provide the shaft sleeve 1 and the shaft sleeve 8, the diameter of the contact part of the upper side and the lower side of the pin shaft 9 and the pin holes of the two loader parent bodies 3 is enlarged, namely the diameter of the contact part is larger than that of the other parts of the pin holes of the loader parent bodies 3.

Further, an upper grease nipple 2 is arranged at the upper end cover 5, a lower grease nipple 7 is arranged at the lower end cover 6, and a first grease hole 10 and a second grease hole 10 are respectively arranged at the inner sides of the shaft sleeve 1 and the shaft sleeve 8 so as to lubricate the shaft sleeve 1 and the shaft sleeve 8, and the first grease hole 10 and the second grease hole 10 are vertically arranged on the same oil channel with the upper grease nipple 2 and the lower grease nipple 7 and are used for respectively lubricating the first shaft sleeve 1 and the second shaft sleeve 8. The oil can be injected for lubrication during daily maintenance, so that the maintenance time is saved, the maintenance cost is reduced, and the equipment utilization rate is improved.

And, a third grease hole 13 is provided inside the pin hole of the rear frame 4, on one oil passage in the vertical direction with the upper grease fitting 2 and the lower grease fitting 7.

The first yellow oil hole 10 and the third yellow oil hole 13 on the oil passage on the pin shaft 9 are communicated, and the upper grease nipple 2 only lubricates the bearings in the middle of the first shaft sleeve 1 and the rear frame 4. The lower oil duct is an independent oil duct and is not communicated with the upper side, and the lower grease nipple 7 only lubricates the second shaft sleeve 8.

The grease hole 10 of axle sleeve 1 department is the oil filler point, and the grease hole 10 of axle sleeve 8 department is the oil outlet.

Have first clearance between first axle sleeve 1 and round pin axle 9, have the second clearance between second axle sleeve 8 and round pin axle 9, the inboard of first axle sleeve 1 and second axle sleeve 8 is provided with the oil storage tank respectively, and the butter is saved to the oil storage tank of first axle sleeve 1 and second axle sleeve 8 through first clearance and second clearance respectively in, has guaranteed the lubricated effect of middle articulated round pin and first axle sleeve 1 and second axle sleeve 8.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

Claims

1. A middle hinged pin shaft device of a loader is arranged on the loader and is characterized in that,

the loader comprises an upper loader parent body, a lower loader parent body, pin holes arranged in the upper loader parent body and the lower loader parent body, and pin shafts inserted into the pin holes,

the middle hinge pin shaft device of the loader comprises a first shaft sleeve and a second shaft sleeve, the first shaft sleeve is arranged in the pin hole in the upper loader parent body and surrounds the pin shaft, and the second shaft sleeve is arranged in the pin hole in the lower loader parent body and surrounds the pin shaft.

2. The loader intermediate hinge pin apparatus of claim 1 wherein the diameter of the pin holes at the upper and lower loader parent bodies is greater than the diameter of the other portions of the pin holes.

3. The intermediate hinge pin apparatus for a loader according to claim 1, wherein an upper grease nipple is provided at an upper end cover of the loader, a lower grease nipple is provided at a lower end cover of the loader, and a first grease hole and a second grease hole, which are provided in one oil passage in a vertical direction with the upper grease nipple and the lower grease nipple, are provided at the pin shaft, the first grease hole and the second grease hole being located inside the first bushing and the second bushing.

4. The middle hinge pin apparatus of claim 3, wherein the first grease hole is an oil filler hole and the second grease hole is an oil outlet hole.

5. The middle hinge pin device of a loader as claimed in claim 3, wherein a first gap is provided between the first shaft sleeve and the pin, a second gap is provided between the second shaft sleeve and the pin, oil reservoirs are provided inside the first shaft sleeve and the second shaft sleeve, respectively, and grease is stored in the oil reservoirs of the first shaft sleeve and the second shaft sleeve through the first gap and the second gap, respectively.

6. The middle hinge pin device of a loader as claimed in claim 3, further comprising a rear frame disposed between the upper and lower loader parent bodies, wherein the pin hole penetrates the rear frame, a third grease hole is provided in the pin shaft, the third grease hole is in an oil passage with the upper and lower grease nipples in the vertical direction, and the third grease hole is located inside the pin hole of the rear frame.

7. The intermediate hinge pin apparatus of a loader of claim 6, wherein the first grease hole and the third grease hole are in communication and are not in communication with the second grease hole.