CN215562883U - Pin shaft connecting mechanism of movable arm and bucket rod of excavator and excavator - Google Patents
Pin shaft connecting mechanism of movable arm and bucket rod of excavator and excavator Download PDFInfo
- Publication number
- CN215562883U CN215562883U CN202121395897.4U CN202121395897U CN215562883U CN 215562883 U CN215562883 U CN 215562883U CN 202121395897 U CN202121395897 U CN 202121395897U CN 215562883 U CN215562883 U CN 215562883U
- Authority
- CN
- China
- Prior art keywords
- pin shaft
- excavator
- bucket rod
- movable arm
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Pivots And Pivotal Connections (AREA)
Abstract
The utility model discloses a pin shaft connecting mechanism of a movable arm and a bucket rod of an excavator and the excavator, and belongs to hinge point connecting mechanisms in the mechanical industry. The pin shaft connecting mechanism of the movable arm and the bucket rod of the excavator comprises the bucket rod, the movable arm, a pin shaft and a bushing; the outer surface of the bushing is assembled in the bucket rod in an interference fit mode; the bucket rod is connected with the movable arm through a pin shaft, and the pin shaft and the movable arm are fixed together through a fastener; a cavity for storing lubricating oil is arranged between the inner surface of the bush and the outer surface of the pin shaft; and the bucket rod is provided with an oil injection channel communicated with the cavity. The beneficial effects are that: at the contact surface of round pin axle and bush, the lubricating oil storage capacity increase, it is also more even to distribute, has improved lubricated effect, has effectively prevented the wearing and tearing of round pin axle and bush, has prolonged equipment's life.
Description
Technical Field
The utility model relates to a pin shaft connecting mechanism for a movable arm and a bucket rod of an excavator, and belongs to hinge point connecting mechanisms in the mechanical industry.
Background
The connecting position of the pin shaft of the movable arm and the bucket rod frequently rotates, the requirement on the lubricating effect is high, the contact surface of the pin shaft and the bushing needs to be kept lubricated constantly, in the existing connecting mechanism, the surface of the pin shaft is smooth, the inner surface of the bushing is provided with splayed or double-splayed oil grooves, lubricating oil cannot be uniformly distributed on the contact surface, and after long-time work, partial contact surface lubricating oil is extremely less, dry friction occurs, so that the bushing and the pin shaft are abraded, and the service life of a working device is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a pin shaft connecting mechanism for a movable arm and a bucket rod of an excavator.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model discloses a pin shaft connecting mechanism of a movable arm and a bucket rod of an excavator, which comprises a bucket rod, a movable arm, a pin shaft and a bushing, wherein the movable arm is connected with the bucket rod through the pin shaft; the outer surface of the bushing is assembled in the bucket rod in an interference fit mode; the bucket rod is connected with the movable arm through a pin shaft, and the pin shaft and the movable arm are fixed together through a fastener; a cavity for storing lubricating oil is arranged between the inner surface of the bush and the outer surface of the pin shaft; and the bucket rod is provided with an oil injection channel communicated with the cavity.
As an optimization scheme of the utility model: and a plurality of oil storage grooves for storing lubricating oil are processed on the radial surface of the contact part of the pin shaft and the bush.
The preferable scheme is as follows: the oil storage tank is a strip-shaped groove, and the oil storage tanks are uniformly distributed on the radial surface of the pin shaft.
As an optimization scheme of the utility model: the inner surface of the bushing is machined with a plurality of oil pockets for storing lubricating oil.
The preferable scheme is as follows: the oil pockets are hemispherical shallow pits, and a plurality of oil pockets are uniformly distributed on the inner surface of the lining.
The specific scheme is as follows: annular grooves are respectively processed in the middle positions of the inner surface and the outer surface of the lining, and a plurality of through holes are processed in the annular grooves and penetrate through the inner annular groove and the outer annular groove.
The preferable scheme is as follows: the bucket rod is provided with a threaded hole which penetrates through an outer annular groove of the bushing to form an oil injection channel; and a grease nipple for filling lubricating oil is assembled on the threaded hole of the bucket rod.
As an optimization scheme of the utility model: and a dustproof ring is arranged between the outer end face of the bushing and the movable arm.
The specific scheme is as follows: a stop sleeve is arranged on one side plate of the movable arm, an assembly hole is formed in the stop sleeve, and a pin hole coaxial with the assembly hole is formed in the pin shaft; the fastener is a bolt and a nut, and the bolt penetrates through the assembly hole and the pin hole and then is fastened through the nut to fix the pin shaft and the movable arm together.
The utility model also discloses an excavator, and the pin shaft connecting mechanism for the movable arm and the bucket rod of the excavator is installed.
The utility model has the beneficial effects that:
at the contact surface of round pin axle and bush, the lubricating oil storage capacity increase, it is also more even to distribute, has improved lubricated effect, has effectively prevented the wearing and tearing of round pin axle and bush, has prolonged equipment's life.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model without limiting the utility model to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is a schematic overall view of a pin connecting mechanism for a boom and a stick of an excavator according to the present invention;
FIG. 2 is a sectional view of a pin connecting mechanism of a boom and a stick of an excavator according to the present invention (the hatched portion is an oil storage cavity);
FIG. 3 is a schematic view of the bushing configuration of the present invention;
FIG. 4 is a schematic diagram of the pin structure of the present invention;
the attached drawings are as follows: 1. the device comprises a bucket rod, 2, a movable arm, 3, a pin shaft, 4, a dust ring, 5, a bushing, 6, a grease nipple, 7, a bolt, 8, an oil hole, 9, a through hole, 10, an oil storage tank, 11 and a stop sleeve.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, a pin shaft connecting mechanism for a movable arm and an arm of an excavator comprises an arm 1, a movable arm 2, a pin shaft 3 and a bushing 5; the outer surface of the bushing 5 is assembled in the bucket rod 1 in an interference fit mode; the bucket rod 1 and the movable arm 2 are connected through a pin shaft 3, and the pin shaft 3 and the movable arm 2 are fixed together through a fastener; a cavity for storing lubricating oil is arranged between the inner surface of the bush 5 and the outer surface of the pin shaft 3; and an oil injection channel communicated with the cavity is arranged on the bucket rod 1.
As shown in fig. 4, the pin 3 has a plurality of oil reservoirs 10 formed in the radial surface of the contact portion with the bush 5 for storing lubricating oil.
The preferable scheme is as follows: the oil storage tank 10 is a long strip-shaped groove, and the oil storage tanks 10 are uniformly distributed on the radial surface of the pin shaft 3.
As shown in fig. 3, the inner surface of the bush 5 is formed with a plurality of oil pockets 8 for storing lubricating oil.
The preferable scheme is as follows: the oil pockets 8 are hemispherical shallow pits, and a plurality of oil pockets 8 are uniformly distributed on the inner surface of the liner 5.
With continued reference to fig. 3, annular grooves are formed at intermediate positions of the inner and outer surfaces of the bush 5, respectively, and a plurality of through holes 9 are formed in the annular grooves, the through holes 9 penetrating the inner and outer annular grooves.
By last obtaining, 8 evenly distributed of oil cave of bush 5 internal surface, the oil storage tank 10 of four rectangular shapes on 3 external surfaces of round pin axle is evenly distributed too, and the conformal formation two kinds of cavitys: the oil cavity 8 of the bush 5 and the smooth outer surface of the pin shaft (3) form a hemispherical cavity, the oil cavity 8 of the bush 5 is communicated with the strip-shaped oil storage groove 10 of the pin shaft 3 to form a large cavity, and the two cavities have the function of storing lubricating oil.
Continuing to refer to fig. 2, the bucket rod 1 is provided with a threaded hole which penetrates through an outer annular groove of the bushing 5, so that a oiling channel is formed; and a grease nipple 6 for filling lubricating oil is assembled on the threaded hole of the bucket rod 1.
From the above, the lubricating oil sequentially passes through the grease nipple 6, the threaded hole of the bucket rod 1, the annular groove on the outer surface of the bushing 5, the through hole 9 of the bushing 5 and the annular groove on the inner surface of the bushing 5, enters the contact surface of the bushing 5 and the pin shaft 3 to realize lubrication, and meanwhile, part of the lubricating oil is stored in the oil cavity 8 on the inner surface of the bushing 5 and the oil storage groove 10 on the radial surface of the pin shaft 3; at the contact surface of round pin axle 3 and bush 5, the increase is stored up to lubricating oil, and it is also more even to distribute, has improved lubricated effect, has effectively prevented the wearing and tearing of round pin axle 3 and bush 5, has prolonged equipment's life.
With continued reference to fig. 2, a dust ring 4 is mounted between the outer end face of the bushing 5 and the boom 2.
Continuing to refer to fig. 2, a stop sleeve 11 is arranged on one side plate of the movable arm 2, an assembly hole is arranged on the stop sleeve 11, and a pin hole coaxial with the assembly hole is arranged on the pin shaft 3; the fastener is a bolt 7 and a nut, and the bolt 7 penetrates through the assembly hole and the pin hole and then is fastened through the nut to fix the pin shaft 3 and the movable arm 2 together.
In the installation process, the bush 5 is pressed into the bucket rod 1 from the upper end shown in fig. 2, the dust ring 4 is pressed into the bucket rod 1 to the upper end face of the bush 5, and the installation of the lower end of the bucket rod 1 is the same as that of the above. The pin shaft 3 sequentially penetrates through the movable arm 2 and the bucket rod 1 to be aligned with a stop sleeve 11 on the movable arm 2 and is fixed on the movable arm 2 through a bolt 7 and a nut; and finally, the grease fitting 6 is installed to a threaded hole in the bucket rod 1.
The utility model also discloses an excavator, and the pin shaft connecting mechanism for the movable arm and the bucket rod of the excavator is installed.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than others, combinations of features of different embodiments are also meant to be within the scope of the utility model and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (10)
1. The utility model provides an excavator swing arm and bucket rod's round pin hub connection mechanism which characterized in that:
comprises a bucket rod (1), a movable arm (2), a pin shaft (3) and a bushing (5);
the outer surface of the bushing (5) is assembled in the bucket rod (1) in an interference fit mode;
the bucket rod (1) is connected with the movable arm (2) through a pin shaft (3), and the pin shaft (3) is fixed with the movable arm (2) through a fastener;
a cavity for storing lubricating oil is arranged between the inner surface of the bush (5) and the outer surface of the pin shaft (3);
and an oil injection channel communicated with the cavity is arranged on the bucket rod (1).
2. The mechanism of claim 1, wherein the pin shaft connecting the boom and the stick of the excavator is characterized in that:
and a plurality of oil storage grooves (10) for storing lubricating oil are machined on the radial surface of the contact part of the pin shaft (3) and the bush (5).
3. The mechanism of claim 2, wherein the pin shaft connecting the boom and the stick of the excavator is characterized in that:
the oil storage tank (10) is a long-strip-shaped groove, and the oil storage tanks (10) are uniformly distributed on the radial surface of the pin shaft (3).
4. The mechanism of claim 1, wherein the pin shaft connecting the boom and the stick of the excavator is characterized in that:
the inner surface of the bush (5) is provided with a plurality of oil pockets (8) for storing lubricating oil.
5. The mechanism of claim 1, wherein the pin shaft connecting the boom and the stick of the excavator is characterized in that:
the oil holes (8) are hemispherical shallow pits, and a plurality of oil holes (8) are uniformly distributed on the inner surface of the lining (5).
6. The mechanism of claim 1, wherein the pin shaft connecting the boom and the stick of the excavator is characterized in that:
annular grooves are respectively machined in the middle positions of the inner surface and the outer surface of the lining (5), a plurality of through holes (9) are machined in the annular grooves, and the through holes (9) penetrate through the inner annular groove and the outer annular groove.
7. The mechanism of claim 6, wherein the pin shaft connecting the boom and the stick of the excavator is characterized in that:
the bucket rod (1) is provided with a threaded hole which penetrates through an outer annular groove of the bushing (5) to form an oil injection channel;
and a grease nipple (6) for filling lubricating oil is assembled on the threaded hole of the bucket rod (1).
8. The pin connecting mechanism of the boom and the stick of the excavator according to claims 1 to 7, wherein:
and a dust ring (4) is arranged between the outer end surface of the bushing (5) and the movable arm (2).
9. The pin connecting mechanism of the boom and the stick of the excavator according to claims 1 to 7, wherein:
a stop sleeve (11) is arranged on one side plate of the movable arm (2), an assembly hole is formed in the stop sleeve (11), and a pin hole coaxial with the assembly hole is formed in the pin shaft (3);
the fastener is a bolt (7) and a nut, and the bolt (7) penetrates through the assembly hole and the pin hole and then is fastened through the nut to fix the pin shaft (3) and the movable arm (2) together.
10. An excavator, characterized in that:
a pin coupling mechanism to which the excavator boom and arm of any one of claims 1 to 9 are attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121395897.4U CN215562883U (en) | 2021-06-23 | 2021-06-23 | Pin shaft connecting mechanism of movable arm and bucket rod of excavator and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121395897.4U CN215562883U (en) | 2021-06-23 | 2021-06-23 | Pin shaft connecting mechanism of movable arm and bucket rod of excavator and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215562883U true CN215562883U (en) | 2022-01-18 |
Family
ID=79819673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121395897.4U Active CN215562883U (en) | 2021-06-23 | 2021-06-23 | Pin shaft connecting mechanism of movable arm and bucket rod of excavator and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215562883U (en) |
-
2021
- 2021-06-23 CN CN202121395897.4U patent/CN215562883U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215562883U (en) | Pin shaft connecting mechanism of movable arm and bucket rod of excavator and excavator | |
| CN216278991U (en) | High-lubrication fabric lining joint bearing | |
| CN211314890U (en) | Wear-resistant universal joint fork for commercial vehicle | |
| CN215562884U (en) | Pin shaft connecting mechanism at root of movable arm of excavator and excavator | |
| CN113479797A (en) | High-precision positioning circular telescopic arm structure for engineering machinery | |
| CN108930774B (en) | Shear type grab bucket self-lubricating pulley mechanism | |
| CN219673105U (en) | High lubrication bearing sleeve | |
| CN207935278U (en) | A kind of high assembly precision robot bearing in reduction gears | |
| CN212429505U (en) | Self-lubricating bearing | |
| CN216343439U (en) | High-rotating-speed deep groove ball bearing of gearbox | |
| CN211200532U (en) | Bucket shaft sleeve convenient to install | |
| CN211820393U (en) | Single-row cross roller type slewing bearing | |
| CN211875098U (en) | Hub oil seal | |
| CN210949458U (en) | Pin shaft structure of crawler-type engineering machinery | |
| CN214084508U (en) | Novel caterpillar track link pin bush | |
| CN218720540U (en) | Mounting structure of intermediate gear of oil pump | |
| CN213980699U (en) | Novel large traction force elevator | |
| CN202914194U (en) | Cylinder sleeve | |
| CN216666238U (en) | Lubricated oil circuit structure of aircraft low-speed heavy load joint bush | |
| CN219605714U (en) | Bushing for oil cylinder assembly | |
| CN215053354U (en) | Movable arm pin shaft fixing device of excavator | |
| CN217129968U (en) | Wear-resistant piston rod structure for oil cylinder | |
| CN219119646U (en) | Tapered roller bearing with long service life | |
| CN220705624U (en) | Roller cone engineering piece with rubber capsule type oiling pressure maintaining device | |
| CN214606914U (en) | Novel mining universal wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |