CN201991020U - Rocker arm for excavator - Google Patents
Rocker arm for excavator Download PDFInfo
- Publication number
- CN201991020U CN201991020U CN2011200676069U CN201120067606U CN201991020U CN 201991020 U CN201991020 U CN 201991020U CN 2011200676069 U CN2011200676069 U CN 2011200676069U CN 201120067606 U CN201120067606 U CN 201120067606U CN 201991020 U CN201991020 U CN 201991020U
- Authority
- CN
- China
- Prior art keywords
- hole
- arm body
- rocking arm
- annulus
- rocker arm
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a rocker arm for an excavator, which comprises a rocker arm body, wherein the upper end and the lower end of the rocker arm body are respectively provided with a through hole, a circular ring is respectively fixed on the periphery of the through holes of the upper end and the lower end of the outer surface of the rocker arm body, pin holes are processed on the outer surfaces of the circular rings and penetrate through the outer surfaces of two sides of the circular rings, the outer surfaces of the circular rings are provided with grooves along the circumference direction, and the positions of the pin holes of the circular rings are positioned in the middles of the grooves. Preferably, the center lines of the pin holes and the center lines of the through holes of the circular rings are mutually intersected and mutually vertical. Preferably, the center lines of the through holes of the circular rings fixed at the upper end of the rocker arm body is mutually overlapped with the center lines of the through holes arranged at the upper end of the rocker arm body, and in addition, the hole diameter of the through holes of the circular rings is greater than the hole diameter of the through holes arranged at the upper end of the rocker arm body. Preferably, the center lines of the through holes of the circular rings fixed at the lower end of the rocker arm body are mutually overlapped with the center lines of the through holes arranged at the lower end of the rocker arm body, and in addition, the hole diameter of the through holes of the circular rings is greater than the hole diameter of the through holes arranged at the lower end of the rocker arm body. When the rocker arm is connected with a rotating shaft, the fixation is firm, the mounting and dismounting speed is high, and the maintainability is good.
Description
Technical field
The utility model relates to the rocker component that is connected with connecting rod with dipper on excavator manufacturing technology field, the especially excavator.
Background technology
On the excavator, for making bucket produce the action of digging and stretching upwards downwards, a rocking arm need be set between connecting rod that is connected with bucket and dipper; the rocking arm upper and lower side forms with dipper with connecting rod by rotating shaft and is connected; general requirement is to interfix between rocking arm and the rotating shaft; do not relatively rotate; common way is to process a step and screw thread in the end of rotating shaft; with nut rocking arm is locked in the rotating shaft pass the through hole of rocking arm when the end of rotating shaft after; the main problem of this way is the bad control of locking force of nut; installing/dismounting speed is slow; when nut lock tension; can occur between nut and the rotating shaft getting rusty; nut is not torn open not got off during maintenance, and maintainability is poor; When nut was locked tightly inadequately, because bucket shakes when shovel digs greatly, nut was loosening easily on the other hand, and it is insecure to make that rocking arm is connected with rotating shaft.
The utility model content
The technical problems to be solved in the utility model provides the rocking arm that a kind of excavator is used, and is fixed when it is connected with rotating shaft, and installing/dismounting speed is fast, and maintainability is good.
For achieving the above object, the technical solution of the utility model is: the rocking arm that a kind of excavator is used, comprise the rocking arm body; the upper and lower side of rocking arm body respectively has a through hole; each fixes an annulus along the upper and lower side bore periphery at this external surface of rocking arm, is processed with pin-and-hole at the annulus external surface, and pin-and-hole runs through the external surface of annulus both sides; described annulus external surface along the circumferential direction is processed with groove, and the position of annulus pin-and-hole is in the centre of groove.
Further, the center line of described pin-and-hole intersects with annulus through hole center line and is vertical mutually.
Further, annulus through hole center line that is fixed on rocking arm body upper end and the aperture of the aperture of rocking arm body upper end through hole center line overlaid and annulus through hole greater than through hole on the rocking arm body are fixed on the aperture of the aperture of the annulus through hole center line of rocking arm body lower end and rocking arm body lower end through hole center line overlaid and annulus through hole greater than rocking arm body lower end through hole.
The utility model is because each fixes an annulus along the upper and lower side bore periphery at this external surface of rocking arm, be processed with pin-and-hole at the annulus external surface, forming the roller end processing and the corresponding through hole of annulus pin-and-hole that cooperates with rocking arm earlier, after roller end is passed rocking arm body upper and lower side through hole, the through hole that utilizes pin-and-hole on the annulus to insert steady pin and pass roller end just can be fixed together rotating shaft and rocking arm body, guarantee that rocking arm and rotating shaft interfix, do not rotate mutually, installation and removal speed is fast, and do not need the control dynamics during installation and removal, maintainability is good.
Utilize the groove of annulus to snap in jump ring, can prevent that steady pin from because of the vibrations of the bucket pin-and-hole from annulus drops out, making that interfixing of rocking arm body and connecting axle is more firm.
Description of drawings
Fig. 1 is the utility model elevation.
Fig. 2 is the A-A sectional view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing and concrete embodiment the utility model is described in further detail.
Fig. 1, shown in Figure 2, the rocking arm that a kind of excavator is used, comprise rocking arm body 1; upper and lower side of rocking arm body respectively has a through hole 11,12; each fixes an annulus 2,3 along upper and lower side through hole 11,12 peripheries at rocking arm body 1 external surface, is processed with pin-and- hole 21,31 at annulus 2,3 external surfaces, and pin-and- hole 21,31 runs through the external surface of annulus 2,3 both sides; described annulus 2,3 external surfaces along the circumferential direction are processed with groove 22,32, and the position of annulus pin-and- hole 21,31 is in the centre of groove 22,32.
The center line of preferred pin-and-hole 21 intersects with annulus 2 through hole center lines and is vertical mutually, and the center line of preferred pin-and-hole 31 intersects with annulus 3 through hole center lines and be vertical mutually.
Preferably be fixed on the aperture of the aperture of the annulus 2 through hole center lines of rocking arm body 1 upper end and rocking arm body 1 upper end through hole, 11 center line overlaids and annulus 2 through holes, preferably be fixed on the aperture of the aperture of the annulus 3 through hole center lines of rocking arm body 1 lower end and rocking arm body 1 lower end through hole, 12 center line overlaids and annulus 3 through holes greater than rocking arm body 1 lower end through hole 12 greater than rocking arm body 1 upper end through hole 11.
Annulus of the present utility model also can be designed to polygonal sleeve, all conceives identically with this case as long as have pin-and-hole at the external surface of sleeve, and those skilled in the art is so long as make the protection domain that the change of unsubstantiality all falls into this case.
Claims (3)
1. rocking arm that excavator is used, comprise the rocking arm body; the upper and lower side of rocking arm body respectively has a through hole; it is characterized in that: each fixes an annulus along the upper and lower side bore periphery at this external surface of rocking arm; be processed with pin-and-hole at the annulus external surface; pin-and-hole runs through the external surface of annulus both sides, described annulus external surface along the circumferential direction is processed with groove, and the position of annulus pin-and-hole is in the centre of groove.
2. the rocking arm that excavator according to claim 1 is used is characterized in that: the center line of described pin-and-hole intersects with annulus through hole center line and is vertical mutually.
3. the rocking arm that excavator according to claim 1 is used, it is characterized in that: annulus through hole center line that is fixed on rocking arm body upper end and the aperture of the aperture of rocking arm body upper end through hole center line overlaid and annulus through hole greater than through hole on the rocking arm body are fixed on the aperture of the aperture of the annulus through hole center line of rocking arm body lower end and rocking arm body lower end through hole center line overlaid and annulus through hole greater than rocking arm body lower end through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200676069U CN201991020U (en) | 2011-03-15 | 2011-03-15 | Rocker arm for excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200676069U CN201991020U (en) | 2011-03-15 | 2011-03-15 | Rocker arm for excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201991020U true CN201991020U (en) | 2011-09-28 |
Family
ID=44667509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200676069U Expired - Fee Related CN201991020U (en) | 2011-03-15 | 2011-03-15 | Rocker arm for excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201991020U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947727A (en) * | 2015-05-07 | 2015-09-30 | 吴军香 | Oscillating rod for excavator |
-
2011
- 2011-03-15 CN CN2011200676069U patent/CN201991020U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947727A (en) * | 2015-05-07 | 2015-09-30 | 吴军香 | Oscillating rod for excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20140315 |