CN209798877U - Excavator chassis and excavator - Google Patents
Excavator chassis and excavator Download PDFInfo
- Publication number
- CN209798877U CN209798877U CN201920307184.4U CN201920307184U CN209798877U CN 209798877 U CN209798877 U CN 209798877U CN 201920307184 U CN201920307184 U CN 201920307184U CN 209798877 U CN209798877 U CN 209798877U
- Authority
- CN
- China
- Prior art keywords
- plate
- side plate
- welded
- cover plate
- excavator
- 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
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
The utility model relates to an excavator chassis and an excavator, which aims to solve the problem that the welding part of a front sealing plate and a track beam of the existing excavator chassis is easy to crack, the utility model constructs an excavator chassis which comprises an underframe, a left track beam and a right track beam, wherein the underframe is mainly a box-shaped structure formed by welding an upper cover plate, a lower cover plate, a front side plate, a rear side plate, a left side plate, a right side plate and a middle cylinder; the two ends of the front side plate are provided with bends extending forwards, the bend at the left end of the front side plate is attached to and welded with the inner side plate of the left crawler beam, and the bend at the right end of the front side plate is attached to and welded with the inner side plate of the right crawler beam. The utility model discloses excavator chassis novel structure is simple, and welding seam length increases, and reinforcing postweld intensity, walking frame bearing capacity improve, and life increases.
Description
Technical Field
The utility model relates to an excavator, more specifically say, relate to an excavator chassis and excavator.
Background
With the continuous transformation and replacement of urbanization and the popularization of agricultural mechanization, the domestic labor cost is continuously improved, the miniature excavator is continuously favored by users with a light machine type, a simple structure, smaller tonnage and a proper price, the demand is continuously improved at home and abroad, the using working conditions are continuously increased, and the outdoor and open-air states are not lacked. This requires that the micro-excavation not only be simple in structure and low in cost, but also the working strength and reliability thereof need to be continuously improved to meet the needs of customers. The crawler traveling system is a leg and a foot of the excavator, and on one hand, the whole excavator needs to be supported to provide a stable working environment for a working device, and even under the extreme working condition, the crawler and the dozer blade need to support the whole excavator to operate; on the other hand, the walking system needs to carry the upper platform to move freely in different working environments so as to meet the requirements of working states. Therefore, the walking system bears the self weight of the excavator and the reaction force generated when the working device excavates, and once the combined walking frame fails, the whole excavator is paralyzed. The stable walking structure is of great importance to the excavator, and directly influences the maneuverability, climbing capability, cross-country performance, ground pressure, stability of the excavator during operation and the like.
A modular walking frame typically includes left and right track beams and an undercarriage. The left crawler beam and the right crawler beam weld the guide wheel support, the driving wheel support, the chain wheel support and the like into a whole, the upper cover plate, the lower cover plate, the reinforcing plates, the slewing bearing mounting plate, the dozer blade support and the like into a whole, and then the left crawler beam and the right crawler beam are welded with the underframe. Besides dispersing stress and increasing the strength of the walking machine, the front reinforcing plate of the conventional combined walking machine also needs to fix a dozer blade support. The welding contact is the line contact welding of the reinforcing plate and the crawler beam, and the processing technology is simpler. However, the structure is more suitable for large excavators, and the deformation amount is small after welding because the adopted plate is thicker. For a micro excavator (short for micro digging), the left and right track beams, the reinforcing plate and the upper cover plate welding plate are all thin, and if the structure is used, phenomena of infirm welding, welding penetration and the like can occur, and welding quality defects and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is the easy problem that ftractures of shrouding and track beam welding department before the excavator chassis, and provide an excavator chassis and excavator to the problem of the welding seam fracture of shrouding and track beam welding department before the improvement excavator chassis.
The utility model discloses a realize that the technical scheme of its purpose is like: the chassis of the excavator is constructed and comprises an underframe, and a left crawler beam and a right crawler beam which are positioned on two sides of the underframe, and is characterized in that the underframe is mainly of a box-type structure formed by welding an upper cover plate, a lower cover plate, a front side plate, a rear side plate, a left side plate, a right side plate and a middle cylinder, the left end and the right end of the upper cover plate, the lower cover plate, the front side plate and the rear side plate are correspondingly welded with the left crawler beam and the right crawler beam, the two ends of the left side plate are welded with the left crawler beam, and the two ends of the right side plate are welded with the right crawler beam; the two ends of the front side plate are provided with bends extending forwards, the bend at the left end of the front side plate is attached to and welded with the inner side plate of the left crawler beam, and the bend at the right end of the front side plate is attached to and welded with the inner side plate of the right crawler beam.
Further, in the excavator chassis, the upper cover plate mainly comprises a slewing bearing mounting plate, a left front cover plate, a left rear cover plate, a right front cover plate and a right rear cover plate, the upper end of the middle cylinder is welded with the bottom surface of the slewing bearing mounting plate, and the left front cover plate and the left rear cover plate are respectively welded on the front part and the rear part of the left side of the slewing bearing mounting plate; the right front cover plate and the right rear cover plate are welded to the front portion of the right side and the rear portion of the left side of the slewing bearing mounting plate respectively.
Further, in the excavator chassis, the left side plate and the right side plate are both U-shaped bent plates;
The opening of the left side plate faces to the left, the lower side of the left side plate is welded with the upper side surface of the lower cover plate, the upper side of the front part of the left side plate is welded with the lower side surface of the left front cover plate, and the upper side of the rear part of the left side plate is welded with the lower side surface of the left rear cover plate; the upper edge of the middle bending part is welded with the lower side surface of the slewing bearing mounting plate;
The opening of the right side plate faces the right, the lower side of the right side plate is welded with the upper side surface of the lower cover plate, the upper side of the front part of the right side plate is welded with the lower side surface of the right front cover plate, and the upper side of the rear part of the right side plate is welded with the lower side surface of the right rear cover plate; the upper edge of the middle bending part is welded with the lower side surface of the slewing bearing mounting plate.
further, in the excavator chassis, the left ends of the left front cover plate and the left rear cover plate are welded to the top of the left crawler beam, and the right ends of the right front cover plate and the right rear cover plate are welded to the top of the right crawler beam.
Furthermore, in the excavator chassis, a dozer blade hinged seat is installed in the middle of the front side plate.
The utility model discloses a realize that the technical scheme of its purpose is like: an excavator is constructed, and is characterized by comprising the excavator chassis.
Compared with the prior art, the utility model discloses excavator chassis, its novel structure is simple, arranges rationally, does not increase extra cost, and the method is simple, both can increase the area of contact of reinforcing plate and track roof beam, can increase welding seam length again, and the reinforcing welds back intensity, improves the bearing capacity of walking frame, improves walking frame life.
drawings
Fig. 1 is a perspective view of the excavator chassis of the present invention.
Fig. 2 is a side view of the excavator chassis of the present invention.
Fig. 3 is a front view of the excavator chassis of the present invention.
Fig. 4 is an exploded view of the excavator chassis of the present invention.
Fig. 5 is a schematic structural view of a front side plate of the excavator chassis of the present invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings.
As shown in fig. 1 to 5, the excavator undercarriage in the present embodiment includes an undercarriage and left and right track girders 12 and 2 on both sides of the undercarriage, and the undercarriage is of a bilaterally symmetrical structure. The left and right crawler beams are provided with driving wheel supports 7, driving wheels 6 are arranged on the driving wheel supports, guide wheels 1 are arranged at the front ends of the left and right crawler beams, the upper parts of the left and right crawler beams are provided with carrier wheels 4, and the bottom parts of the left and right crawler beams are provided with thrust wheels 16.
The underframe is mainly of a box-shaped structure formed by welding an upper cover plate, a lower cover plate 18, a front side plate 14, a rear side plate 17, a left side plate 10, a right side plate 19 and a middle cylinder 8. The middle part of the front side plate 14 is provided with a bulldozer blade hinged seat 15.
The left side plate 10 and the right side plate 19 are both U-shaped bent plates and are respectively positioned at the left side and the right side of the underframe, the front side plate 14 and the rear side plate 17 are respectively positioned at the front part and the rear part of the underframe, and the bottom edges of the left side plate 10, the right side plate 19, the front side plate 14 and the rear side plate 17 are respectively welded with the upper side surface of the bottom plate.
The upper cover plate mainly comprises a slewing bearing mounting plate 9, a left front cover plate 13, a left rear cover plate 11, a right front cover plate 3 and a right rear cover plate 5, the upper end of a middle cylinder 8 is welded with the bottom surface of the slewing bearing mounting plate 9, the lower end of the middle cylinder is welded with a lower cover plate 18, and the left front cover plate 13 and the left rear cover plate 11 are respectively welded at the front part and the rear part of the left side of the slewing bearing mounting plate 9; the right front cover plate 3 and the right rear cover plate 5 are welded to the right front portion and the left rear portion of the slewing bearing mounting plate 9, respectively. The opening of the left side plate 10 faces to the left, the upper edge of the front part of the left side plate is welded with the lower side surface of the left front cover plate 13, and the upper edge of the rear part of the left side plate is welded with the lower side surface of the left rear cover plate 11; the upper edge of the middle bending part is welded with the lower side surface of the slewing bearing mounting plate 9; the opening of the right side plate 19 faces the right, the upper edge of the front part of the right side plate is welded with the lower side surface of the right front cover plate 3, and the upper edge of the rear part of the right side plate is welded with the lower side surface of the right rear cover plate 5; the upper edge of the middle bending part is welded with the lower side surface of the slewing bearing mounting plate 9.
The front side plate 14 is positioned at the front part of the underframe, the top edge of the front side plate 14 is welded with the bottom surfaces of the left front cover plate 13, the right front cover plate 3 and the slewing bearing mounting plate 9, and the bottom edge of the front side plate 14 is welded with the upper side surface of the lower cover plate 18. The left and right ends of the front side plate 14 are provided with a bend 141 extending forward, the bend 142 at the left end of the front side plate 14 is attached and welded to the inner side plate of the left crawler beam 12, and the bend 141 at the right end of the front side plate 14 is attached and welded to the inner side plate of the right crawler beam 2. The left ends of the left front cover plate 13 and the left rear cover plate 11 are welded on the top of the left crawler beam, and the right ends of the right front cover plate 3 and the right rear cover plate 5 are welded on the top of the right crawler beam. The left side and the right side of the bottom plate 18 are respectively welded with the inner side plates of the left crawler beam and the right crawler beam, the two ends of the left side plate are respectively welded with the inner side plate of the left crawler beam, and the two ends of the right side plate are respectively welded with the inner side plate of the right crawler beam.
The excavator chassis in this embodiment may be used to construct an excavator.
Claims (6)
1. An excavator chassis comprises an underframe, and a left crawler beam and a right crawler beam which are positioned on two sides of the underframe, and is characterized in that the underframe is mainly of a box-type structure formed by welding an upper cover plate, a lower cover plate, a front side plate, a rear side plate, a left side plate, a right side plate and a middle cylinder, the left and right ends of the upper cover plate, the lower cover plate, the front side plate and the rear side plate are correspondingly welded with the left crawler beam and the right crawler beam, the two ends of the left side plate are welded with the left crawler beam, and the two ends of the right side plate are welded with the right crawler beam; the two ends of the front side plate are provided with bends extending forwards, the bend at the left end of the front side plate is attached to and welded with the inner side plate of the left crawler beam, and the bend at the right end of the front side plate is attached to and welded with the inner side plate of the right crawler beam.
2. the excavator chassis of claim 1, wherein the upper cover plate is mainly composed of a slewing bearing mounting plate, a left front cover plate, a left rear cover plate, a right front cover plate and a right rear cover plate, the upper end of the middle cylinder is welded to the bottom surface of the slewing bearing mounting plate, and the left front cover plate and the left rear cover plate are respectively welded to the left front part and the left rear part of the slewing bearing mounting plate; the right front cover plate and the right rear cover plate are welded to the front portion of the right side and the rear portion of the left side of the slewing bearing mounting plate respectively.
3. The excavator chassis of claim 2 wherein the left and right side panels are each U-shaped bent panels;
The opening of the left side plate faces to the left, the lower side of the left side plate is welded with the upper side surface of the lower cover plate, the upper side of the front part of the left side plate is welded with the lower side surface of the left front cover plate, and the upper side of the rear part of the left side plate is welded with the lower side surface of the left rear cover plate; the upper edge of the middle bending part is welded with the lower side surface of the slewing bearing mounting plate;
The opening of the right side plate faces the right, the lower side of the right side plate is welded with the upper side surface of the lower cover plate, the upper side of the front part of the right side plate is welded with the lower side surface of the right front cover plate, and the upper side of the rear part of the right side plate is welded with the lower side surface of the right rear cover plate; the upper edge of the middle bending part is welded with the lower side surface of the slewing bearing mounting plate.
4. The excavator chassis of claim 3, wherein left ends of the left front and rear cover plates are welded to a top of the left track beam and right ends of the right front and rear cover plates are welded to a top of the right track beam.
5. The excavator chassis of any one of claims 1 to 4, wherein a dozer blade hinge mount is mounted at a central portion of the front side plate.
6. An excavator characterized by comprising an excavator chassis according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920307184.4U CN209798877U (en) | 2019-03-12 | 2019-03-12 | Excavator chassis and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920307184.4U CN209798877U (en) | 2019-03-12 | 2019-03-12 | Excavator chassis and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209798877U true CN209798877U (en) | 2019-12-17 |
Family
ID=68824439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920307184.4U Active CN209798877U (en) | 2019-03-12 | 2019-03-12 | Excavator chassis and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209798877U (en) |
-
2019
- 2019-03-12 CN CN201920307184.4U patent/CN209798877U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8235457B2 (en) | Cabin and traveling construction machine with the same | |
| US4182456A (en) | Material handling machine | |
| KR20140124413A (en) | Construction machine arm | |
| CN201924385U (en) | Short bucket rod of excavator | |
| KR101837220B1 (en) | Construction machine swing frame | |
| JP3634723B2 (en) | Construction machine swivel frame | |
| KR20140027288A (en) | Arm for construction machinery | |
| US7997619B2 (en) | Track frame for work machine | |
| GB1596877A (en) | Vehicle frame | |
| CN209798877U (en) | Excavator chassis and excavator | |
| US20130017049A1 (en) | Boom assembly | |
| JP2003213727A (en) | Revolving frame for construction machine | |
| US4098350A (en) | Bulldozer blade push arms | |
| JP2012067447A (en) | Revolving frame of construction machine | |
| CN211523314U (en) | Traction frame and land leveler | |
| US3432051A (en) | Loader frame for track-type loaders | |
| JP2012149447A (en) | Construction machine | |
| JP2001182098A (en) | Cab for construction machinery | |
| CN116180837B (en) | Special lower frame for shovel excavator and tailor welding method thereof | |
| CN211472627U (en) | Electric shovel rod | |
| CN217811319U (en) | Engineering machine frame and engineering machine | |
| JP2003129521A (en) | Revolving frame of construction machinery | |
| CN219544895U (en) | Steel arch mounting trolley frame | |
| CN219904558U (en) | Integrated lower frame and travelling mechanism of excavator | |
| CN213897251U (en) | Bucket rod with anti-deformation function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |