CN219571571U

CN219571571U - Luffing jib round pin axle lubricating structure

Info

Publication number: CN219571571U
Application number: CN202320510809.3U
Authority: CN
Inventors: 刘炳慧; 蒙小行; 刘海栋; 宗震宇; 刘虹; 郝爽
Original assignee: Lovol Heavy Industry Group Co ltd
Current assignee: Lovol Heavy Industry Group Co ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-08-22
Anticipated expiration: 2033-03-16

Abstract

The utility model relates to the field of engineering machinery, in particular to a movable arm pin shaft lubricating structure which comprises an adapter seat arranged on an oil filling port, and further comprises an oil filling seat, wherein the oil filling seat is arranged on the side part of a movable arm, an oil conveying pipe for conveying lubricating oil is arranged between the adapter seat and the oil filling seat, an oil filling hole is arranged on the oil filling seat, an oil filling plug for plugging the oil filling hole is arranged on the oil filling seat, the adapter seat is in a bent pipe shape, one end of the oil conveying pipe is connected to one end part of the bent pipe, the oil conveying pipe is a flexible hose, a first joint is arranged on the oil filling port, two sections of external threads are respectively arranged at two ends of the first joint, the first joint is screwed on the oil filling port through one section of external threads, a first nut joint is arranged on the adapter seat, and the other section of external threads on the first joint are screwed on the first nut joint. This movable arm round pin axle lubricating structure changes the position of lubricating oil filling opening, and the round pin axle lubrication after the change is more convenient, uses manpower sparingly.

Description

Luffing jib round pin axle lubricating structure

Technical Field

The utility model relates to the field of engineering machinery, in particular to a movable arm pin shaft lubricating structure.

Background

The excavator is an engineering machine widely applied to earthwork construction, the front side of the excavator is provided with an accessory, such as a bucket, a breaking hammer and a hydraulic shear, the accessory is connected with the excavator through a movable arm and a bucket rod, the front end on the movable arm is provided with an accessory oil cylinder for controlling the action of the accessory, the upper part of the movable arm is provided with a bucket rod oil cylinder for controlling the action of the bucket rod, in addition, the excavator is also provided with a movable arm oil cylinder for controlling the action of the movable arm, and the action of the accessory is controlled through the accessory oil cylinder, and the expansion and contraction of the movable arm oil cylinder and the bucket rod oil cylinder governs the actions of excavating, loading and the like of the bucket.

At present, most of hydraulic cylinders on a movable arm are hinged on the movable arm through pin shafts, and taking a bucket rod cylinder as an example, two lug plates are arranged on the movable arm, the pin shafts are arranged on the two lug plates, oil filling ports are arranged at the end parts of the pin shafts, and lubricating oil passages communicated with the oil filling ports are arranged on the pin shafts. When the excavator is maintained regularly, the pin shaft needs to be lubricated, and because the height of the pin shaft at the lug plate on the movable arm is too high, after the excavator is put into a specific posture, a worker can inject lubricating oil into the oil filling port, so that the operation is time-consuming and labor-consuming, the work burden is increased, and the improvement is needed.

Disclosure of Invention

The utility model aims to provide a movable arm pin shaft lubricating structure which is convenient for pin shaft lubrication.

The utility model discloses a movable arm pin shaft lubricating structure for achieving the purposes, which is characterized in that: the oil injection device comprises an adapter seat arranged on an oil injection port, and further comprises an oil injection seat arranged on the side part of a movable arm, wherein an oil delivery pipe for delivering lubricating oil is arranged between the adapter seat and the oil injection seat, an oil injection hole is arranged on the oil injection seat, and an oil injection plug for plugging the oil injection hole is arranged on the oil injection seat.

After adopting above-mentioned structure, under the prerequisite that does not change the round pin axle lubrication mode, change the position of lubricating oil filling opening, make it need not to let the excavator put to specific gesture when maintaining, also can carry out artificial injection lubricating oil, the round pin axle lubrication after the change is more convenient, convenient.

Regarding the specific structure of the adapter, the adapter is in a bent pipe shape, and one end of the oil delivery pipe is connected to one end of the bent pipe. The bent pipe is bent at 90 degrees, so that the direction of an oil way can be changed.

Regarding the specific structure of the oil delivery pipe, the oil delivery pipe is a flexible hose.

Preferably, the first joint is arranged on the oil filling port, two sections of external threads are arranged on the first joint, the two sections of external threads are respectively positioned at two ends of the first joint, and the first joint is screwed on the oil filling port through one section of external threads.

Regarding the mounting structure of the adapter on the oil filling port, a first nut joint is mounted on the adapter, and the other section of external thread on the first joint is screwed on the first nut joint.

In order to facilitate the installation of the first joint, a screwing part for being matched with a wrench is arranged on the first joint, the screwing part is in a hexagonal prism shape, and the screwing part is positioned between two sections of external threads.

Regarding the concrete structure of the oil injection seat, the oil injection hole penetrates through the oil injection seat, and the oil injection plug is arranged at one end of the oil injection hole.

Preferably, a second connector is arranged at the other end of the oil filling hole, and the second connector has the same structure as the first connector.

Regarding the connection structure of the oil delivery pipe and the oiling seat, a second nut joint is installed at one end of the oil delivery pipe connected with the oiling seat, and the second nut joint is screwed on the external thread of the second joint.

In summary, the beneficial effects of the utility model are as follows: under the premise of not changing the lubricating mode of the pin shaft, the position of the lubricating oil injection port is changed, so that the excavator does not need to swing to a specific posture during maintenance, the artificial injection of lubricating oil can be performed, the pin shaft is more convenient and rapid to lubricate after the change, and the labor is saved.

Drawings

FIG. 1 is an exploded view of an oil injection structure;

FIG. 2 is a schematic view of a part of the enlarged structure of the portion A in FIG. 1;

FIG. 3 is a schematic side view of an oiling feature;

FIG. 4 is a schematic view of a part of the enlarged structure of the portion B in FIG. 3;

FIG. 5 is a schematic side view of a filler plug;

FIG. 6 is a schematic view of the structure of the adapter and the oil delivery pipe;

FIG. 7 is a schematic structural view of an oil injection seat;

fig. 8 is a schematic structural view of the first joint.

In the figure: the movable arm 1, the pin shaft 2, the first joint 3, the adapter 4, the oil delivery pipe 5, the second joint 6, the oil injection seat 7, the oil injection plug 8, the oil injection port 9, the oil injection hole 10, the external thread 11, the screwing part 12, the first nut joint 13 and the second nut joint 14.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following is a description of preferred embodiments of the utility model, taken in conjunction with the accompanying drawings.

The utility model provides a luffing jib round pin axle lubricating structure, includes the adapter seat 4 of installing on oiling mouth 9, still includes oiling seat 7, and oiling seat 7 installs the lateral part at luffing jib 1, installs the oil delivery pipe 5 that is used for carrying lubricating oil between adapter seat 4 and the oiling seat 7, is equipped with oil filler point 10 on the oiling seat 7, installs the oil filler plug 8 of shutoff on oil filler point 10 on the oiling seat 7. Referring to fig. 1, after the structure is adopted, on the premise of not changing the lubrication mode of the pin shaft 2, the position of the lubricating oil injection port is changed, so that the excavator does not need to swing to a specific posture during maintenance, the artificial injection of lubricating oil can be performed, and the lubrication of the pin shaft 2 is more convenient and faster after the change.

Referring to fig. 6, regarding the specific structure of the adaptor 4, the adaptor 4 is in a bent pipe shape, and one end of the oil delivery pipe 5 is connected to one end of the bent pipe. The bent pipe is bent at 90 degrees, so that the direction of an oil way can be changed. Regarding the specific structure of the oil delivery pipe 5, the oil delivery pipe 5 is a flexible hose.

Referring to fig. 3 and 8, a first joint 3 is installed on the oil filling port 9, two sections of external threads 11 are arranged on the first joint 3, the two sections of external threads 11 are respectively located at two ends of the first joint 3, and the first joint 3 is screwed on the oil filling port 9 through one section of external threads 11. Regarding the installation structure of the adapter 4 on the oil filling port 9, a first nut joint 13 is installed on the adapter 4, and the other section of external thread 11 on the first joint 3 is screwed on the first nut joint 13.

Referring to fig. 8, in order to facilitate the installation of the first joint 3, the first joint 3 is provided with a screwing part 12 for engaging with a wrench, the screwing part 12 is in a hexagonal prism shape, and the screwing part 12 is located between two sections of external threads 11.

Referring to fig. 7, regarding a specific structure of the oil injection seat 7, an oil injection hole 10 penetrates the oil injection seat 7, and an oil injection plug 8 is installed at one end of the oil injection hole 10. The other end of the oil filling hole 10 is provided with a second joint 6, and the second joint 6 has the same structure as the first joint 3.

Referring to fig. 6, regarding the connection structure of the oil delivery pipe 5 and the oil injection seat 7, a second nut joint 14 is installed at one end of the oil delivery pipe 5 connected to the oil injection seat 7, and the second nut joint 14 is screwed on the external thread 11 of the second joint 6.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims

1. The utility model provides a luffing jib round pin axle lubricating structure, its characterized in that, including installing adapter (4) on oiling mouth (9), still include oiling seat (7), oiling seat (7) are installed in the lateral part of swing arm (1), install oil pipe (5) that are used for carrying lubricating oil between adapter (4) and oiling seat (7), are equipped with oil filler point (10) on oiling seat (7), install oil filler plug (8) of shutoff on oil filler point (10) on oiling seat (7).

2. The luffing jib pin shaft lubricating structure according to claim 1, wherein the adapter seat (4) is in a bent pipe shape, and one end of the oil delivery pipe (5) is connected to one end of the bent pipe.

3. A boom pin lubrication structure according to claim 2, characterized in that the oil delivery pipe (5) is a flexible hose.

4. The movable arm pin shaft lubricating structure according to claim 2, wherein the first joint (3) is installed on the oil filling port (9), two sections of external threads (11) are arranged on the first joint (3), the two sections of external threads (11) are respectively positioned at two ends of the first joint (3), and the first joint (3) is screwed on the oil filling port (9) through one section of external threads (11).

5. The luffing jib pin lubrication structure according to claim 4, wherein the adaptor (4) is provided with a first nut joint (13), and the other section of external thread (11) on the first joint (3) is screwed on the first nut joint (13).

6. The luffing jib pin shaft lubricating structure according to claim 4, wherein the first joint (3) is provided with a screwing part (12) for being matched with a spanner, the screwing part (12) is in a hexagonal prism shape, and the screwing part (12) is positioned between two sections of external threads (11).

7. The luffing jib pin shaft lubricating structure according to claim 4, wherein the oil filling hole (10) penetrates through the oil filling seat (7), and the oil filling plug (8) is arranged at one end of the oil filling hole (10).

8. The luffing jib pin shaft lubricating structure according to claim 7, wherein a second joint (6) is arranged at the other end of the oil injection hole (10), and the second joint (6) has the same structure as the first joint (3).

9. The luffing jib pin shaft lubricating structure according to claim 8, wherein a second nut joint (14) is arranged at one end of the oil delivery pipe (5) connected with the oil injection seat (7), and the second nut joint (14) is screwed on the external thread (11) of the second joint (6).