CN201400903Y - Movable arm of digging machine - Google Patents
Movable arm of digging machine Download PDFInfo
- Publication number
- CN201400903Y CN201400903Y CN2009200063664U CN200920006366U CN201400903Y CN 201400903 Y CN201400903 Y CN 201400903Y CN 2009200063664 U CN2009200063664 U CN 2009200063664U CN 200920006366 U CN200920006366 U CN 200920006366U CN 201400903 Y CN201400903 Y CN 201400903Y
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- China
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- plate
- mainboard
- swing arm
- tailstock
- front fork
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Abstract
The utility model discloses a movable arm of a digging machine, which comprises a movable arm body, a front fork and a tail base, wherein the front fork and the tail base are welded at both ends of the movable arm body; the front fork is a welding assembly which adopts structural alloy steel; or/and the tail base is a welding assembly which adopts structural alloy steel. The front fork and the tail base of the movable arm of the digging machine have good welding performance with the movable arm body, and the normal working hours of the digging machine are prolonged.
Description
Technical field
The utility model relates to mechanical manufacturing field, relates in particular to a kind of excavator swing arm.
Background technology
Excavator swing arm is one of vitals of excavator, and therefore, can the quality of excavator swing arm performance directly has influence on excavator operate as normal.
Excavator swing arm comprises swing arm arm body, front fork and tailstock, wherein, front fork and tailstock all adopt the foundry goods monoblock cast to form, and then weld together with swing arm arm body, front fork is used for swing arm arm body and excavator boom are linked together, and back seat is used for swing arm arm body and excavator base machine are linked together.
Because the welding performance of foundry goods was undesirable originally, need herein to weld together, and swing arm arm body adopts structural alloy steel more with swing arm arm body, therefore, the front fork of this foundry goods form and back seat are when welding with different materials, and its welding effect is just poorer.And this two places weld seam is stressed the most complicated place for the whole piece swing arm, and the quality of foundry goods is relatively large, so, along with the frequent work of excavator often is easy at this weld cracking, make the excavator cisco unity malfunction, thereby shortened the time of excavator operate as normal.
The utility model content
The utility model provides a kind of excavator swing arm, has strengthened the welding performance of it front fork that comprises and tailstock and swing arm arm body, has increased the duration of excavator operate as normal.
A kind of excavator swing arm comprises swing arm arm body, front fork and tailstock, and described front fork and tailstock are welded on the two ends of described swing arm arm body;
Described front fork is for adopting the group welding piece of structural alloy steel;
Or/and described tailstock is for adopting the group welding piece of structural alloy steel.
The excavator swing arm that the utility model provides, its front fork is for adopting the group welding piece of structural alloy steel, or/and, its tailstock is for adopting the group welding piece of structural alloy steel, and compared with prior art, the welding performance of structural alloy steel is better than foundry goods, and it is littler than casting quality, therefore, when front fork or tailstock adopted the structural alloy steel material, the effect of itself and excavator swing arm welding machine improved a lot; Further, excavator swing arm arm body generally adopts structural alloy steel, when front fork or/and tailstock when adopting the structural alloy steel material, because the welding performance the when welder performance of identical or close material welding welds with respect to different materials is better, therefore, further improve front fork or/and the welder performance of tailstock and excavator swing arm, thereby increased the duration of excavator operate as normal.
Description of drawings
The excavator swing arm schematic diagram that Fig. 1 provides for the utility model embodiment;
The structural front view of the front fork that Fig. 2 provides for the utility model embodiment;
The sectional drawing of the front fork that Fig. 3 provides for the utility model embodiment;
The structural front view of the front fork that comprises reinforcing rib that Fig. 4 provides for the utility model embodiment;
The sectional drawing of the front fork that comprises reinforcing rib that Fig. 5 provides for the utility model embodiment;
The structural front view of the tailstock that Fig. 6 provides for the utility model embodiment;
The sectional drawing of the tailstock that Fig. 7 provides for the utility model embodiment;
The structural front view of the tailstock that comprises left plate and right plate that Fig. 8 provides for the utility model embodiment;
The sectional drawing of the tailstock that comprises left plate and right plate that Fig. 9 provides for the utility model embodiment;
The structural front view of the tailstock that comprises reinforcing rib that Figure 10 provides for the utility model embodiment;
The sectional drawing of the tailstock that comprises reinforcing rib that Figure 11 provides for the utility model embodiment.
The specific embodiment
The utility model embodiment provides a kind of excavator swing arm in order to increase the duration of excavator operate as normal.Below in conjunction with Figure of description, the utility model is elaborated.
The excavator swing arm that the utility model embodiment provides, as shown in Figure 1, it comprises front fork 1, tailstock 2 and swing arm arm body 3, wherein, front fork 1 is welded on an end of swing arm arm body 3, is used for being connected with excavator boom, tailstock 2 is welded on an end of swing arm arm body 3, is used for being connected with excavator base machine.
Embodiment one:
In excavator swing arm shown in Figure 1, front fork 1 is for adopting the group welding piece of structural alloy steel, and tailstock is common foundry goods, and the structure to front fork 1 is described in detail below:
The overall structure of the front fork 1 that the utility model provides as shown in Figures 2 and 3, wherein, Fig. 2 is the structural front view of front fork 1, Fig. 3 is the sectional drawing that cuts from the A-A line of front fork shown in Figure 21.By Fig. 2 and Fig. 3 as seen, this front fork 1 comprises:
Left side fork plate 11, right fork plate 12 and connection bent plate 13.
Wherein, left side fork plate 11 and right fork plate 12 are welded on respectively and are connected bent plate 13 both sides, and should left side fork plate 11 to pitch plate 12 vertical with the plate face that is connected bent plate 13 respectively with the right side.
This connection bent plate 13 is mainly used in fixing left side fork plate 11 and right fork plate 12, and it can adopt V-structure (shown in the dotted portion among Fig. 2) or U type structure.
In the above-described front fork 1, left side fork plate 11, right fork plate 12 and connect one or more in the bent plate 13 and can adopt hollow-core construction, promptly adopt the steel plate of hollow-core construction, so both reduced material usage, save cost, and further alleviated the weight of front fork 1, thereby reduced the burden of front fork 1 and swing arm arm body 2 welds.
In the present embodiment, for further reinforcement left side fork plate 11, right welded construction of pitching between plate 12 and the connection bent plate 13, front fork 1 can also comprise reinforcing rib 14, as shown in Figure 4 and Figure 5, wherein, Fig. 4 is the structural front view that comprises the front fork 1 of reinforcing rib, Fig. 5 is the sectional drawing from the A-A line incision of front fork shown in Figure 41, as seen from Figure 4, weld with the two ends that are connected bent plate 13 respectively at the two ends of the reinforcing rib 14 that this front fork 1 comprises, and forms similar leg-of-mutton structure (as the dotted portion among Fig. 4).
Embodiment two:
In excavator swing arm shown in Figure 1, tailstock 2 is for adopting the group welding piece of structural alloy steel, and front fork 1 is common foundry goods, and the structure to tailstock 2 is described in detail below:
The overall structure of the tailstock 2 that the utility model provides as shown in Figure 6 and Figure 7, wherein, Fig. 6 is the structural front view of tailstock 2, Fig. 7 is the sectional drawing that cuts from the B-B line of tailstock shown in Figure 62.By Fig. 6 and Fig. 7 as seen, this tailstock 2 comprises:
Wherein, upper plate 21, lower plate 22 are welded with axle sleeve 23 respectively, and are the oblique angle between upper plate 21 and the lower plate 22;
Above-mentioned tailstock 2 can further include the left plate that is used to reinforce left mainboard 24 and axle sleeve 23 welding effects, or/and, be used to reinforce the right plate of right mainboard 25 and axle sleeve 23 welding effects.
The above-mentioned tailstock 2 that comprises left plate 26 and right plate 27 is as Fig. 8 and shown in Figure 9, and wherein, Fig. 8 is the structural front view that comprises the tailstock 2 of left plate 26 and right plate 27, and Fig. 9 is the sectional drawing from the B-B line incision of tailstock shown in Figure 82, as seen from Figure 9:
Left plate 26 is positioned at left mainboard 24 outsides, 23 welding of one end and axle sleeve, the other end with state left mainboard 24 welding;
Right plate 27 is positioned at right mainboard 25 outsides, one end and axle sleeve 23 welding, the other end and 27 welding of right mainboard.
In the said structure, left plate 26 and right plate 27 are straight plate or bent plate (being bent plate shown in Fig. 8 and Fig. 9).
In the above-described tailstock 2, one or more in upper plate 21, lower plate 22, left mainboard 24, right mainboard 25, left plate 26 and the right plate 27 are hollow-core construction, promptly adopt the steel plate of hollow-core construction, so both reduced material usage, save cost, but and further alleviate the weight of tailstock 2, thereby reduce the burden of tailstock 2 and swing arm arm body 2 welds.
In the present embodiment, in order further to strengthen the welded construction between left mainboard 24 and the right mainboard 25, tailstock 2 can also comprise reinforcing rib 28, as shown in Figure 10 and Figure 11, wherein, Figure 10 is the structural front view that comprises the tailstock 2 of reinforcing rib, and Figure 11 is the sectional drawing from the B-B line incision of tailstock shown in Figure 10 2, as seen from Figure 11, the two ends of the reinforcing rib 28 that comprises of this tailstock 2 respectively with left mainboard 24 and 25 welding of right mainboard.
Further, this reinforcing rib 28 also welds with upper plate 21 and lower plate 22 respectively, to strengthen consolidation effect (as the dotted portion among Figure 10).
Embodiment three:
In excavator swing arm shown in Figure 1, front fork 1 and tailstock 2 all are the group welding piece that adopts structural alloy steel, and particularly, front fork 1 is described in detail in the above-described embodiments with the structure of tailstock 2, no longer is repeated in this description herein.
The excavator swing arm that the utility model provides, its front fork is for adopting the group welding piece of structural alloy steel, or/and, its tailstock is for adopting the group welding piece of structural alloy steel, and compared with prior art, the welding performance of structural alloy steel is better than foundry goods, and it is littler than casting quality, therefore, when front fork or tailstock adopted the structural alloy steel material, the effect of itself and excavator swing arm welding machine improved a lot; Further, excavator swing arm arm body generally adopts structural alloy steel, when front fork or/and tailstock when adopting the structural alloy steel material, because the welding performance the when welder performance of identical or close material welding welds with respect to different materials is better, therefore, further improved front fork or/and the welder performance of tailstock and excavator swing arm, thus the time of having improved the excavator operate as normal.
Further, the utility model since front fork or/and tailstock adopts the assembly welding structure, the selection of part material is very flexible, can the high structural alloy steel (as Q345, Q430 etc.) of selection intensity, so both guarantee local intensity, improved whole welding effect again.Thereby realized reduction complete machine load, it is slight to improve swing arm, the effect that increases the service life.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (10)
1, a kind of excavator swing arm comprises swing arm arm body, front fork and tailstock, and described front fork and tailstock are welded on the two ends of described swing arm arm body, it is characterized in that,
Described front fork is for adopting the group welding piece of structural alloy steel;
Or/and described tailstock is for adopting the group welding piece of structural alloy steel.
2, excavator swing arm as claimed in claim 1 is characterized in that, described front fork comprises:
Left side fork plate, right fork plate and connection bent plate;
Described left side fork plate and described right fork plate are welded on respectively and describedly are connected the bent plate both sides, and described left side fork plate and described right fork plate are vertical with the described plate face that is connected bent plate respectively.
3, excavator swing arm as claimed in claim 2 is characterized in that, described left side fork plate, right fork plate and to connect one or more in the bent plate be hollow-core construction.
4, as claim 2 or 3 each described excavator swing arms, it is characterized in that described front fork also comprises:
Reinforcing rib, the two ends of described reinforcing rib weld with the described two ends that are connected bent plate respectively.
5, excavator swing arm as claimed in claim 1 is characterized in that, described tailstock comprises:
Upper plate, lower plate, left mainboard, right mainboard and axle sleeve;
Described upper plate, lower plate are welded with described axle sleeve respectively, and are the oblique angle between described upper plate and the described lower plate;
Described left mainboard, right mainboard are welded on respectively between described upper plate and the described lower plate, and an end of described left mainboard and described right mainboard and the welding of described axle sleeve.
6, excavator swing arm as claimed in claim 5 is characterized in that, described tailstock also comprises:
Left plate is positioned at the described left mainboard outside, one end and the welding of described axle sleeve, the other end and described left mainboard welding;
Or/and right plate is positioned at the described right mainboard outside, one end and the welding of described axle sleeve, the other end and described right mainboard welding.
7, excavator swing arm as claimed in claim 6 is characterized in that, described left plate or right plate are straight plate or bent plate.
As claim 6 or 7 described excavator swing arms, it is characterized in that 8, one or more in described upper plate, lower plate, left mainboard, right mainboard, left plate and the right plate are hollow-core construction.
9, excavator swing arm as claimed in claim 5 is characterized in that, described tailstock also comprises:
Reinforcing rib, the two ends of described reinforcing rib weld with described left mainboard and described right mainboard respectively.
10, excavator swing arm as claimed in claim 9 is characterized in that, described reinforcing rib also welds with described upper plate and described lower plate respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200063664U CN201400903Y (en) | 2009-03-10 | 2009-03-10 | Movable arm of digging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200063664U CN201400903Y (en) | 2009-03-10 | 2009-03-10 | Movable arm of digging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201400903Y true CN201400903Y (en) | 2010-02-10 |
Family
ID=41660701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200063664U Expired - Fee Related CN201400903Y (en) | 2009-03-10 | 2009-03-10 | Movable arm of digging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201400903Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831766A (en) * | 2015-05-07 | 2015-08-12 | 吴军香 | Swing arm for electrically-driven excavator |
| CN105297798A (en) * | 2014-07-28 | 2016-02-03 | 卡特彼勒公司 | Boom for linkage assembly of machine |
| CN108547340A (en) * | 2018-05-31 | 2018-09-18 | 马鞍山松鹤信息科技有限公司 | A kind of high strength excavator swing arm |
-
2009
- 2009-03-10 CN CN2009200063664U patent/CN201400903Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297798A (en) * | 2014-07-28 | 2016-02-03 | 卡特彼勒公司 | Boom for linkage assembly of machine |
| CN104831766A (en) * | 2015-05-07 | 2015-08-12 | 吴军香 | Swing arm for electrically-driven excavator |
| CN108547340A (en) * | 2018-05-31 | 2018-09-18 | 马鞍山松鹤信息科技有限公司 | A kind of high strength excavator swing arm |
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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: 20100210 Termination date: 20110310 |