CN203145069U - Bucket rod and excavator with same - Google Patents
Bucket rod and excavator with same Download PDFInfo
- Publication number
- CN203145069U CN203145069U CN 201320067143 CN201320067143U CN203145069U CN 203145069 U CN203145069 U CN 203145069U CN 201320067143 CN201320067143 CN 201320067143 CN 201320067143 U CN201320067143 U CN 201320067143U CN 203145069 U CN203145069 U CN 203145069U
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- Prior art keywords
- dipper
- plate
- bearing
- tube connector
- base plate
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Abstract
The utility model provides a bucket rod which comprises a top plate (10), a base plate (12), a left lateral plate (14), a right lateral plate (14) and a front support (20). The top plate, the base plate, the left lateral plate and the right lateral plate are fixedly connected to form a box body structure. The front support is arranged at the front end of the box body structure and comprises a connecting pipe (21) and two connecting plates (24) extending outwards from two opposite ends of the connecting pipe. The connecting pipe and the connecting plates (24) are integrally molded to form a single-piece bearing piece. The end portions of the connecting plates are welded with corresponding positions of the left lateral plate and the right lateral plate respectively to form straight line welding seams. The utility model further provides an excavator with the bucket rod. The front support of the bucket rod is integrally formed to be a one-piece bearing piece, and the manufacture process of the front support is simple. Due to the connecting plates, the welding seams at the connecting positions between the front support and the left lateral plate and between the front support and the right lateral plate are changed into a straight line shape from a circular arc shape in the prior art, welding difficulty and welding defects are greatly reduced.
Description
Technical field
The utility model relates to engineering machinery field, relates in particular to excavator boom and has its excavator.
Background technology
The equipment of excavator is used for directly finishing mining task, mainly comprises swing arm, scraper bowl, reaches the dipper that connects swing arm and scraper bowl.See also Fig. 1, described dipper is body structure, form by top board 10, base plate 12,14 weldings of left and right side plate, the front end of described dipper is provided with preceding bearing 20, bearing 30 during the rear end of bearing 20 is provided with before described, the rear end of described dipper is provided with rear support 40, and described dipper is hinged by bearing before described 20 and scraper bowl, and its rear end is hinged by rear support 40 and swing arm.Described dipper is articulated and connected by bearing in described 30 and rocking bar, and described rocking bar is used for the motion of auxiliary control scraper bowl.See also Fig. 2, bearing 20 is the circular sleeve structure before existing, its upper and lower relative both sides are top board 10 and base plate 12 overlap joints respectively, and lap-joint is the line contact, and be welded to connect in the line contact position, the side of its opposite end is connected with left and right side plate 14, and the end of described left and right side plate processes semicircle groove, described groove engages with the side of the opposite end of preceding bearing, forms semicircle weld seam in engaging place welding.
The utility model content
In order to address the above problem, the utility model provides a kind of simple in structure, dipper that welding procedure is good.
It is a kind of simple in structure that the utility model provides, the dipper that welding procedure is good, described dipper comprises top board, base plate, a left side, right plate and preceding bearing, described top board, base plate and a left side, right plate is fixedly connected to form body structure, bearing is positioned at the front end of described body structure before described, bearing comprises tube connector and respectively from outward extending two junction plates of the axial opposite end of described tube connector before described, described tube connector and described junction plate are one-body molded to be a single-piece supporting member, described junction plate away from the end of described tube connector (21) respectively with a described left side, the right plate relevant position is welded to connect formation straight bead.
Preferably, described junction plate is provided with boss with the end that left and right side plate is connected, and described left and right side plate is provided with the recess that is complementary with described boss in the relevant position, and described boss cooperates with described recess.
Preferably, described boss docks welding with the cooperation place of described recess, and forms straight bead in the junction.
Preferably, described junction plate is equipped with groove with the relative both sides that described top board is connected with base plate.
Preferably, the relative both sides of described tube connector are equipped with and connect the plane, and each connects all extending axially along described tube connector of plane.
Preferably, described top board contacts with described tube connector face by the described plane that is connected respectively with base plate, and is welded to connect in the face contact position.
Preferably, described tube connector is axially arranged with a through hole along it, and described through hole comprises the transitional pore that is positioned at central authorities vertically and the supported hole that is positioned at the transitional pore opposite end, and the diameter of described transitional pore is greater than the diameter of described supported hole.
The utility model also provides a kind of excavator, comprise dipper, swing arm and scraper bowl, the front end of described dipper pivots with scraper bowl and is connected, the relative other end of described scraper bowl pivots with swing arm and is connected, described dipper comprises preceding bearing, described dipper pivots with described scraper bowl by bearing before described and is connected, and described dipper is above-mentioned dipper.
The preceding bearing of the dipper that the utility model provides is one-body molded to be a single-piece supporting member, compare the body formed preceding bearing of branch and reduced weld seam, improved the safety of dipper, and the manufacturing process of bearing is simple before making, in addition, owing to be provided with junction plate, the weld seam of preceding bearing and left and right side plate junction is changed into linear by the circular arc of prior art, welding difficulty and weld defect have been reduced greatly, also make simultaneously the junction of left and right side plate and preceding bearing need not to be processed into circular-arc, greatly facilitate the processing and manufacturing of left and right side plate.
Description of drawings
Fig. 1 is the dipper structural representation of prior art;
Fig. 2 is the structural representation of preceding bearing of the dipper of prior art;
Fig. 3 is the dipper structural representation of the utility model one embodiment;
Fig. 4 is the preceding seat structure schematic diagram of dipper among Fig. 3;
Fig. 5 is the sectional view of the H-H vertically of the preceding bearing among Fig. 4.
Symbol description
10, top board 12, base plate 14, left and right side plate 20, preceding bearing
21, tube connector 201, connection plane 22, through hole 220, supported hole
222, transitional pore 24, junction plate 240, boss 241, groove
30, middle bearing 40, rear support 50, bucket cylinder bearing 60, bucket arm cylinder bearing
141, connect the end
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.Should be understood that the specific embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
In the utility model, under the situation of not doing opposite explanation, the noun of locality of use as " front, back, left, right, up, down " normally at direction shown in the drawings or at vertically, each parts mutual alignment relationship description word on the vertical or gravity direction.
The equipment of excavator is used for directly finishing mining task, and it comprises swing arm, scraper bowl, reaches the dipper that connects swing arm and scraper bowl.See also Fig. 3, the utility model provides a kind of simple in structure, dipper that welding procedure is good, and described dipper comprises top board 10, base plate 12, left and right side plate 14, preceding bearing 20, middle bearing 30, rear support 40, bucket arm cylinder bearing 60 and bucket cylinder bearing 50.
Described dipper is the casing shape, is formed by described top board 10, base plate 12 and 14 weldings of left and right side plate.Bearing 20 is arranged at the front end of dipper before described, be the front end of body structure, particularly, described preceding bearing 20 runs through left and right side plate 14, the upper and lower relative both sides of bearing 20 overlap with described top board 10 and base plate 12 respectively before described, and described dipper is hinged by bearing before described 20 and described scraper bowl.Bearing 30 is located at the centre of dipper near the position of front end in described, bearing 30 runs through left and right side plate 14 in described, middle bearing 30 opposite end vertically is connected with left and right side plate 14, described dipper is connected with rocking bar by middle bearing 30, and described dipper utilizes the motion of the auxiliary control of rocking bar scraper bowl.Described rear support 40 is located at the rear end of dipper and the position of close base plate 12, and described dipper is hinged by rear support 40 and described swing arm.Described bucket cylinder bearing 50 and bucket arm cylinder bearing 60 all are positioned at the rear end of described dipper, described bucket cylinder bearing 50 is connected with an end of bucket cylinder, described bucket cylinder is used for driving described scraper bowl Working motion, described bucket arm cylinder bearing 60 is connected with an end of bucket arm cylinder, and described bucket arm cylinder is used for driving described dipper motion.
See also Fig. 4, bearing 20 comprises tube connector 21, lays respectively at two connection planes 210 of tube connector 21 upper and lower relative both sides and lays respectively at tube connector 21 along two junction plates 24 of its axial opposite end before described, described tube connector 21 and described junction plate 24 are one-body molded to be a single-piece supporting member, in the present embodiment, described tube connector 21 and described junction plate 24 are by the casting integrated single-casting that is shaped to.Described tube connector 21 is cylindric, its inside is provided with a through hole that runs through 22 vertically, please consult Fig. 5 simultaneously, described through hole 22 comprises a transitional pore 222 that is positioned at central authorities vertically and two supported holes 220 that lay respectively at these transitional pore 222 opposite ends, and the diameter of this transitional pore 222 is greater than the diameter of supported hole 220.When described dipper is connected with scraper bowl, bearing pin passes the through hole 22 of described preceding bearing 20, the two end supports of bearing pin is in supported hole 220, described dipper and scraper bowl are articulated and connected, because the diameter of transitional pore 222 is greater than the aperture of supported hole 220, the weight of preceding bearing 20 can be alleviated to a certain extent, and the friction between bearing pin and the preceding bearing 20 can be reduced.
Need to prove that the molding mode of the preferred embodiment of bearing is casting before the dipper of the present utility model, the utility model also can obtain by other molding modes, such as forging.
Described connection plane 201 is positioned at the relative both sides that described tube connector 21 and top board 10 are connected with base plate 12, connecting plane 201 cuts mutually with the lateral surface of tube connector 21 respectively, and extending axially along tube connector 21 respectively, when described top board 10 is connected with preceding bearing 20 with base plate 12, be connected plane 201 with what top board 10 and base plate 12 were overlapped in described tube connector 21 relative both sides respectively, top board 10 contacts with the relative both sides formation face of tube connector 21 with base plate 12, and welds in the face contact position.Described top board 10 has become the face contact with base plate 12 with the line contact that contacts by prior art of tube connector 21, has increased contact area greatly, convenient welding, and the intensity of increase weld, the while also can significantly reduce the weld defect of junction.
Described junction plate 24 is positioned at tube connector 21 along its axial left and right opposite end, and stretches out perpendicular to the axis of tube connector 21.Bearing 20 is connected with described left and right side plate 14 by described junction plate 24 before described, the end that described junction plate 24 is connected with left and right side plate 14 is provided with the boss 240 that shape is down " L ", described left and right side plate 14 also is provided with the recess that is complementary with described boss 240 in corresponding connection end 141, when described junction plate 24 is connected with left and right side plate 14, the boss 240 of junction plate 24 is aimed at snap fit with the recess that is connected end 141 of left and right side plate 14, in cooperation place butt joint welding both are linked into an integrated entity, form straight bead.Need compared to existing technology arc structure is processed in the junction of left and right side plate and preceding bearing, form the circular arc weld seam then in the junction, the welding difficulty is big, and be prone to weld defect, the utility model is changed into straight bead with preceding bearing 20 and the circular arc weld seam of the junction of left and right side plate 14, reduced the welding difficulty greatly, reduced weld defect, also make the end of left and right side plate 14 need not to process circular arc, process more convenient, in addition, cooperate owing to be provided with concaveconvex structure in both junctions, make the combination of junction more reliable.When described top board 10 is connected with preceding bearing 20 with base plate 12, top board 10 both was welded to connect with the plane 201 that is connected of described tube connector 21 relative both sides with base plate 12, also contact with the upper and lower end face of junction plate 24 simultaneously, described junction plate 24 is provided with groove 241 with the upper and lower end face that base plate 12 is connected with base plate 12, in groove 241 places described junction plate 24 and base plate 12 and base plate 12 is welded to connect.
Bearing adopts monoblock cast before the excavator boom that the utility model provides, and be provided with junction plate 24, bearing 20 is changed into linear with the weld seam of left and right side plate 14 junctions by the circular arc of prior art before making, welding difficulty and weld defect have been reduced greatly, simultaneously, preceding bearing 20 is provided with base plate 12 junctions with top board 10 and is connected plane 201, the junction of bearing 20 and top board 10 and base plate 12 contacts the face of changing into by the line of prior art and contacts before making, increased contact area greatly, convenient welding, the while also can significantly reduce the weld defect of junction.
The preceding seat structure that the utility model provides is simple, easy to make, installs comparatively easyly, and the welding position that occurs defective easily improved, thus the safety that has improved dipper.
The utility model also provides a kind of excavator, described excavator comprises dipper, swing arm and scraper bowl, and described dipper one end and swing arm are articulated and connected, and the other end and scraper bowl that it is relative are articulated and connected, described dipper comprises preceding bearing, and described preceding bearing is above-mentioned preceding bearing 20.
Below describe a preferred embodiment of the present utility model by reference to the accompanying drawings in detail, still, be not limited to the detail in the above-mentioned embodiment.In technical conceive scope of the present utility model, can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Claims (8)
1. dipper, it comprises top board (10), base plate (12), a left side, right plate (14) and preceding bearing (20), described top board (10), base plate (12) and a left side, right plate (14) is fixedly connected to form body structure, bearing (20) is positioned at the front end of described body structure before described, it is characterized in that: bearing (20) comprises tube connector (21) and respectively from outward extending two junction plates of the axial opposite end of described tube connector (21) (24) before described, described tube connector (21) and described junction plate (24) are one-body molded to be a single-piece supporting member, described junction plate (24) away from the end of described tube connector (21) respectively with a described left side, right plate (14) relevant position is welded to connect formation straight bead.
2. dipper as claimed in claim 1, it is characterized in that: the end that described junction plate (24) is connected with left and right side plate (14) is provided with boss (240), described left and right side plate (14) is provided with the recess that is complementary with described boss (240) in corresponding connection end (141), and described boss (240) cooperates with described recess.
3. dipper as claimed in claim 2, it is characterized in that: described boss (240) docks welding with described recess cooperation place, and forms straight bead in the junction.
4. dipper as claimed in claim 1, it is characterized in that: described junction plate (24) is equipped with groove (241) with the relative both sides that described top board (10) is connected with described base plate (12).
5. dipper as claimed in claim 1 is characterized in that: the relative both sides of described tube connector (21) are equipped with and connect plane (201), and each connects all extending axially along described tube connector (21) of plane (201).
6. dipper as claimed in claim 5, it is characterized in that: described top board (10) contacts with described tube connector (21) face by the described plane (201) that is connected respectively with base plate (12), and is welded to connect in described contact position.
7. dipper as claimed in claim 1, it is characterized in that: described tube connector (21) is axially arranged with a through hole (22) along it, described through hole (22) comprises the transitional pore (222) that is positioned at central authorities vertically and the supported hole (220) that is positioned at transitional pore (222) opposite end, and the diameter of described transitional pore (222) is greater than the diameter of described supported hole (220).
8. excavator, comprise dipper, swing arm and scraper bowl, the front end of described dipper pivots with scraper bowl and is connected, the relative other end of described scraper bowl pivots with swing arm and is connected, described dipper comprises preceding bearing, described dipper pivots with described scraper bowl by bearing before described and is connected, and it is characterized in that: described dipper is each described dipper of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320067143 CN203145069U (en) | 2013-02-05 | 2013-02-05 | Bucket rod and excavator with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320067143 CN203145069U (en) | 2013-02-05 | 2013-02-05 | Bucket rod and excavator with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203145069U true CN203145069U (en) | 2013-08-21 |
Family
ID=48972610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320067143 Expired - Fee Related CN203145069U (en) | 2013-02-05 | 2013-02-05 | Bucket rod and excavator with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203145069U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107148503A (en) * | 2014-11-06 | 2017-09-08 | 神钢建机株式会社 | The dipper of engineering machinery |
| CN110117969A (en) * | 2018-02-05 | 2019-08-13 | 株式会社加藤制作所 | Hydraulic crawler excavator |
-
2013
- 2013-02-05 CN CN 201320067143 patent/CN203145069U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107148503A (en) * | 2014-11-06 | 2017-09-08 | 神钢建机株式会社 | The dipper of engineering machinery |
| US10428489B2 (en) | 2014-11-06 | 2019-10-01 | Kobelco Construction Machinery Co., Ltd. | Arm for construction machine |
| CN110117969A (en) * | 2018-02-05 | 2019-08-13 | 株式会社加藤制作所 | Hydraulic crawler excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20180205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |