CN220318632U - Rotary platform and excavator - Google Patents
Rotary platform and excavator Download PDFInfo
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- CN220318632U CN220318632U CN202321785651.7U CN202321785651U CN220318632U CN 220318632 U CN220318632 U CN 220318632U CN 202321785651 U CN202321785651 U CN 202321785651U CN 220318632 U CN220318632 U CN 220318632U
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- 230000003014 reinforcing effect Effects 0.000 claims description 24
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 7
- 230000005477 standard model Effects 0.000 description 6
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model relates to an excavator, in order to solve the installation problem of the counterweight of the excavator, the utility model constructs a rotary platform and the excavator, the rotary platform comprises two main beams, the main beams comprise waist plates, upper wing plates and lower wing plates, support pieces welded on the rear end surfaces of the waist plates and lengthening structures at the rear parts of the main beams, and the rear parts of the upper wing plates and the lower wing plates are correspondingly welded at the top parts and the front parts of the bottom parts of the support pieces; the lengthening structure comprises an upper cover plate, a lower cover plate, a left side plate, a right side plate and a rear end plate, wherein the left side plate and the right side plate are respectively welded on the left side surface and the right side surface of the supporting piece; the rear ends of the upper cover plate, the lower cover plate, the left side plate and the right side plate are welded with the rear end plate, and the upper cover plate and the lower cover plate are provided with counterweight mounting holes. The rotary platform can be modified on a standard rotary platform, and a firm counterweight installation position is added so as to install a counterweight.
Description
Technical Field
The present utility model relates to an excavator, and more particularly, to a rotary platform and an excavator.
Background
The excavator comprises an upper body and a lower body, wherein the upper body comprises a rotary platform rotatably mounted on the lower body, and the rotary platform is used for mounting a working device, a power system, a cab and the like. The work implement is mounted to the front of the rotating platform and typically includes a boom, an arm, and an attachment. And a counterweight is arranged at the rear part of the rotary platform and used for balancing the front working device, so that the stability of the machine is improved.
The weight and the installation position of the counterweight can be designed according to the standard working device during the production and the manufacture of the excavator, so that a standard machine type is formed. But for working devices that may be retrofitted or customized on a standard model basis due to operational requirements, such as replacement of an accessory or replacement of a longer length stick or boom. Because of the change of the working device, the gravity center of the excavator is also changed, and the counterweight needs to be correspondingly changed in order to keep the stability of the excavator. On standard models, the working device changes, typically the location of the counterweight is changed, typically moved rearward. The rotary platform of the excavator is provided with two main beams extending backwards, and the counterweight is arranged at the rear section of the main beams. The existing excavator has the problem that how to install the standard type rotary platform after the counterweight is moved backwards so that the counterweight can be safely and firmly installed.
Disclosure of Invention
The utility model aims to solve the technical problem of installation of an excavator counterweight and provides a rotary platform and an excavator.
The technical scheme for achieving the purpose of the utility model is as follows: the rotary platform is characterized in that the rear part of each main beam is provided with an lengthening structure, and the rear parts of the upper wing plate and the lower wing plate are correspondingly welded to the front parts of the top and the bottom of the support piece; the lengthening structure comprises an upper cover plate, a lower cover plate, a left side plate, a right side plate and a rear end plate, wherein the left side plate and the right side plate are respectively welded on the left side surface and the right side surface of the supporting piece, the upper cover plate is arranged on the upper side of the supporting piece, and the left side edge, the right side edge and the front end edge are correspondingly welded with the top edges of the left side plate and the right side plate and the rear end of the upper wing plate; the lower cover plate is arranged on the lower side of the supporting piece, and the left side edge, the right side edge and the front end edge are correspondingly welded with the bottom edges of the left side plate and the right side plate and the rear end of the lower wing plate; the rear ends of the upper cover plate, the lower cover plate, the left side plate and the right side plate extend backwards and protrude out of the rear end of the supporting piece to be welded with the rear end plate, and the upper cover plate and the lower cover plate are provided with counterweight mounting holes which are coaxially communicated.
The rotary platform of the utility model can be modified on the rotary platform of the existing standard excavator to form an additional lengthening structure, and a firm counterweight installation position is added so as to install additional or replaced counterweights after the working device is changed.
In the rotary platform, the bottom surface of the upper cover plate is attached to the top surface of the supporting piece, and the top surface of the lower cover plate is attached to the bottom surface of the supporting piece; the top edge and the bottom edge of the rear end plate are correspondingly welded with the bottom surface of the upper cover plate and the top surface of the lower cover plate, and the rear ends of the left side plate and the right side plate are welded with the front side surface of the rear end plate.
In the rotary platform, the top edge and the bottom edge of the front parts of the left side plate and the right side plate are correspondingly welded with the upper wing plate and the lower wing plate.
In the rotary platform, the supporting piece is in a rectangular cylinder shape, and a through channel which penetrates up and down is formed in the surrounding space of the supporting piece. The passage is capable of passing a weight mounting bolt therethrough up and down.
In the rotary platform, the rotary platform further comprises the supporting plates, and the left end and the right end of each supporting plate are respectively welded with the inner side edges of the lower cover plates in the rear lengthening structures of the two main beams.
In the rotary platform, the rotary platform further comprises a bottom plate, wherein the left side edge and the right side edge of the bottom plate are respectively welded with the inner side edges of the lower wing plates of the two main beams, and the front parts of the inner side edges of the lower cover plates in the lengthened structures at the rear parts of the two main beams are correspondingly welded with the rear parts of the left side edge and the right side edge of the bottom plate; and the rear parts of the inner side edges of the lower cover plates in the two main beam rear part lengthening structures are correspondingly welded with the supporting plates.
In the rotary platform, the lengthening structure at the rear part of each main beam further comprises at least two longitudinal reinforcing ribs, wherein the longitudinal reinforcing ribs are arranged at intervals left and right, the rear part of each longitudinal reinforcing rib is welded with the bottom surface of the lower cover plate, and the front part of each longitudinal reinforcing rib is welded with the bottom surface of the lower wing plate.
In the rotary platform, two longitudinal reinforcing ribs are arranged at the lower side of each main beam, a plurality of transverse reinforcing ribs are arranged between the two longitudinal reinforcing ribs at intervals, the transverse reinforcing ribs are welded with a lower wing plate or a lower cover plate at the upper side of the transverse reinforcing ribs, and two ends of the transverse reinforcing ribs are correspondingly welded with the two longitudinal reinforcing ribs.
In the rotary platform, a group of weight mounting holes which are coaxially communicated are formed in an upper wing plate and a lower wing plate on each main beam, and at least two groups of weight mounting holes which are coaxially communicated are formed in an upper cover plate and a lower cover plate of an elongated structure at the rear part of each main beam.
The technical scheme for achieving the purpose of the utility model is as follows: an excavator is constructed, which is characterized by comprising the rotary platform.
Compared with the prior art, the rotary platform can be formed by modifying the rotary platform of the existing standard excavator and adding the lengthening structure, and a firm counterweight installation position is added so as to install the added or replaced counterweight after the working device is changed.
Drawings
Fig. 1 is a schematic structural view of a rotary platform according to the present utility model.
Fig. 2 is a bottom view of the rear of the swivel platform of the utility model.
Fig. 3 is a top view of the rear of the rotary platform of the present utility model.
Fig. 4 is a side view of the rear of the swivel platform of the utility model.
Fig. 5 is a schematic view showing an assembled structure of a main body and a counterweight of the excavator of the present utility model.
Part names and serial numbers in the figure:
lower body 100, upper body 200, rotating platform 210, secondary counterweight 220, and standard counterweight 230.
The main beam 10, the waist plate 11, the upper wing plate 12, the lower wing plate 13, the bottom plate 14, the supporting piece 20, the through channel 21, the lengthening structure 30, the left side plate 31, the right side plate 32, the upper cover plate 33, the counterweight mounting hole 331, the lower cover plate 34, the rear end plate 35, the supporting plate 36, the longitudinal reinforcing ribs 37 and the transverse reinforcing ribs 38.
Detailed Description
The following describes specific embodiments with reference to the drawings.
Embodiment one.
Fig. 1 to 4 show the structure of a rotary platform according to an embodiment of the present utility model.
As shown in fig. 1 to 4, the rotary platform 210 includes two parallel main beams and a bottom plate 10, the main beams 10 include a waist plate 11, an upper wing plate 12 and a lower wing plate 13 correspondingly welded to the top and bottom of the waist plate 11, a supporting member 20 having a front end welded to the rear end surface of the waist plate 11 and having an upper and lower through passage 21, and the upper wing plate 12, the lower wing plate 13 and the waist plate 11 form a structure in the shape of i-steel.
The support 20 has a rectangular tubular shape, and the space surrounded by the support forms a through passage 21 penetrating up and down, and the through passage can be used for passing the counterweight mounting bolt up and down. The width of the support 20 in the left-right direction is larger than the thickness of the waist plate 11 (left-right direction), and the height thereof is equal to the height of the rear end of the waist plate 11 in the up-down direction. The front end of the support 20 is welded to the rear end of the waist plate 11, the rear end of the upper wing plate 12 extends rearward to the top of the support 20 and covers the front of the top of the support 20, and the bottom surface of the rear of the upper wing plate 12 is welded to the top of the support 20. The rear end of the lower wing plate 13 extends rearward to the bottom of the support 20 and covers the front of the bottom of the support 20, and the top surface of the rear portion of the lower wing plate 13 is welded to the bottom of the support 20.
The left and right sides of the bottom plate 14 are welded with the inner sides of the lower wing plates 13 of the two main beams 10 respectively. The inner sides of the lower wing plates 13 are the right side of the lower wing plate in the left main beam and the left side of the lower wing plate in the right main beam.
The rear of each girder is provided with an elongated structure 30, and the elongated structure 30 includes an upper cover plate 33, a lower cover plate 34, a left side plate 31, a right side plate 32, and a rear end plate 35. The left and right side plates 31 and 32 are welded to the left and right side surfaces of the support 20 corresponding to the rear portion of the side girder 10, respectively, and the top and bottom edges of the front portion of the left side plate 31 are welded to the bottom surface of the upper wing plate 12 and the top surface of the lower wing plate 13, respectively, and the top and bottom edges of the front portion of the right side plate 32 are welded to the bottom surface of the upper wing plate 12 and the top surface of the lower wing plate 13, respectively.
The upper cover 33 is disposed on the upper side of the supporting member 20, the bottom surface thereof is attached to the top surface of the supporting member 20, the left and right sides are correspondingly welded to the top edges of the left and right side plates 31 and 32, and the front end edge is welded to the rear end of the upper wing plate 12. The lower cover 34 is disposed at the lower side of the supporting member 20, the top surface thereof is attached to the bottom surface of the supporting member 20, the left and right sides are correspondingly welded to the bottom edges of the left and right side plates 31 and 32, and the front end edge is welded to the rear end of the lower wing plate 13.
The rear ends of the upper cover plate 33, the lower cover plate 34, the left side plate 31 and the right side plate 32 extend rearward and protrude from the rear ends of the support members 20 to be welded with the rear end plate 35. The top and bottom edges of the rear end plate 35 are correspondingly welded to the bottom surface of the upper cover plate 33 and the top surface of the lower cover plate 34, and the rear ends of the left side plate 31 and the right side plate 32 are welded to the front side surface of the rear end plate 35. The upper cover plate 33, the lower cover plate 34, the left side plate 31, the right side plate 32 and the rear end plate 35 form a box-type structure, and the support member 20 is located inside thereof.
A group of coaxially communicated counterweight mounting holes 331 are formed in the upper wing plate 12 and the lower wing plate 13 on each main beam, and three groups of coaxially communicated counterweight mounting holes are formed in the upper cover plate 33 and the lower cover plate 34 of the rear lengthening structure of each main beam.
The front part of the right side edge of the lower cover plate 34 in the left side girder rear lengthening structure 30 is welded with the rear part of the left side edge of the bottom plate 14; the left side front of the lower deck 13 in the right side girder rear extension 30 is welded to the right side rear of the bottom plate 14. The support plate 36 is arranged between the two lengthening structures 30, and the left end of the support plate 36 is welded with the right side edge of the lower cover plate 13 in the left main beam rear lengthening structure 30; the right end of the support plate 36 is welded to the left side edge of the lower deck 13 in the right side girder rear extension 30.
The lengthening structure 30 at the rear part of each girder further comprises at least two longitudinal reinforcing ribs 37, wherein the longitudinal reinforcing ribs 37 are arranged at intervals left and right, the rear part of each longitudinal reinforcing rib is welded with the bottom surface of the lower cover plate 34, and the front part of each longitudinal reinforcing rib is welded with the bottom surface of the lower wing plate 13. In a preferred embodiment, two longitudinal ribs 37 are arranged at the lower side of each main beam, a plurality of transverse ribs 38 are arranged between the two longitudinal ribs 37 at intervals, the transverse ribs 38 are welded with the bottom surface of the lower wing plate 13 or the lower cover plate 34 at the upper side of the transverse ribs 38, and two ends of the transverse ribs 38 are correspondingly welded with the two longitudinal ribs 37.
The rotary platform 210 in this embodiment may be retrofitted from a rotary platform of a standard model excavator. In the rotary platform of the standard model excavator, the upper wing plate 12 and the lower wing plate 13 on each main beam 10 extend backwards to cover all the supporting pieces 20, and the rear parts of the upper wing plate 12 and the lower wing plate 13 are correspondingly welded with the top and the bottom of the supporting pieces 20 to form a box-shaped structure for installing the counterweight. When the rotary platform in this embodiment is retrofitted from a standard model rotary platform, the rear sections of the upper wing plate 12 and the lower wing plate 13 are cut off so that the rear top and bottom of the supporting member 20 are exposed for connection with the upper cover plate 33 and the lower cover plate 34.
Embodiment two.
Fig. 5 shows a schematic view of the assembly of a counterweight in an excavator main machine in accordance with an embodiment of the present utility model.
As shown in fig. 5, the excavator in the present embodiment includes an upper body 200 and a lower body 100, the upper body 200 includes a revolving platform 210 rotatably mounted on the lower body 100, a working device (not shown in the drawings) mounted on a front portion of the revolving platform 210, a cab (not shown in the drawings), a power system, and an attachment, a counterweight, and the like, wherein the revolving platform 210 is the revolving platform in the first embodiment. Compared with a standard model, the counterweight of the excavator in the embodiment comprises a secondary counterweight 220 and a standard counterweight 230, wherein the secondary counterweight 220 is additionally added due to the change of the working device of the excavator so as to adjust the gravity center of the excavator, and the whole excavator still has good stability after the change of the working device.
As shown in fig. 5, the auxiliary weight 220 is disposed at the front side of the standard weight 230, the bottom of which is fixed to the main beam by weight mounting bolts engaged with the two sets of weight mounting holes 331 at the front of the main beam, and the bottom of the standard weight 230 is fixed to the main beam by weight mounting bolts engaged with the two sets of weight mounting holes at the rear of the main beam.
The revolving platform of the excavator in the embodiment can be modified on the revolving platform of the existing standard excavator, and the counterweight installation position can be increased to firmly install the counterweight which is increased or replaced after the working device is changed.
Claims (10)
1. The rotary platform comprises two parallel main beams, wherein each main beam comprises a waist plate, an upper wing plate and a lower wing plate which are correspondingly welded at the top and the bottom of the waist plate, and a support piece with an upper through channel and a lower through channel, wherein the front end of the support piece is welded at the rear end face of the waist plate; the lengthening structure comprises an upper cover plate, a lower cover plate, a left side plate, a right side plate and a rear end plate, wherein the left side plate and the right side plate are respectively welded on the left side surface and the right side surface of the supporting piece, the upper cover plate is arranged on the upper side of the supporting piece, and the left side edge, the right side edge and the front end edge are correspondingly welded with the top edges of the left side plate and the right side plate and the rear end of the upper wing plate; the lower cover plate is arranged on the lower side of the supporting piece, and the left side edge, the right side edge and the front end edge are correspondingly welded with the bottom edges of the left side plate and the right side plate and the rear end of the lower wing plate; the rear ends of the upper cover plate, the lower cover plate, the left side plate and the right side plate extend backwards and protrude out of the rear end of the supporting piece to be welded with the rear end plate, and the upper cover plate and the lower cover plate are provided with counterweight mounting holes which are coaxially communicated.
2. The rotary platform of claim 1, wherein the bottom surface of the upper cover plate is attached to the top surface of the support member, and the top surface of the lower cover plate is attached to the bottom surface of the support member; the top edge and the bottom edge of the rear end plate are correspondingly welded with the bottom surface of the upper cover plate and the top surface of the lower cover plate, and the rear ends of the left side plate and the right side plate are welded with the front side surface of the rear end plate.
3. The rotary platform of claim 1, wherein the front top and bottom edges of the left and right side panels are welded to the upper and lower wing panels, respectively.
4. The rotary platform according to claim 1, wherein the supporting member has a rectangular cylindrical shape, and the space enclosed by the supporting member forms a through passage penetrating up and down.
5. The rotary platform of claim 1, further comprising support plates, wherein the left and right ends of the support plates are welded to the inner sides of the lower cover plates in the elongated structures at the rear portions of the two main beams, respectively.
6. The rotary platform according to claim 5, further comprising a bottom plate with left and right sides welded to inner sides of lower wing plates of the two main beams, respectively, wherein front parts of inner sides of lower cover plates in the rear lengthened structures of the two main beams are welded to rear parts of the left and right sides of the bottom plate correspondingly; and the rear parts of the inner side edges of the lower cover plates in the two main beam rear part lengthening structures are correspondingly welded with the supporting plates.
7. The rotary platform of any one of claims 1 to 6 wherein the elongate structure at the rear of each main beam further comprises at least two longitudinal ribs spaced laterally apart and welded at the rear to the lower deck bottom surface and at the front to the lower deck bottom surface.
8. The rotary platform of claim 7, wherein the number of the longitudinal reinforcing ribs on the lower side of each main beam is two, a plurality of transverse reinforcing ribs which are arranged at intervals from front to back are arranged between the two longitudinal reinforcing ribs, the transverse reinforcing ribs are welded with the lower wing plate or the lower cover plate on the upper side of the transverse reinforcing ribs, and two ends of the transverse reinforcing ribs are correspondingly welded with the two longitudinal reinforcing ribs.
9. The rotary platform of claim 1, wherein the upper wing plate and the lower wing plate on each main beam are provided with a set of weight mounting holes which are coaxially communicated, and the upper cover plate and the lower cover plate of the rear extension structure of each main beam are provided with at least two sets of weight mounting holes which are coaxially communicated.
10. An excavator characterized by having a swivel platform according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321785651.7U CN220318632U (en) | 2023-07-10 | 2023-07-10 | Rotary platform and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321785651.7U CN220318632U (en) | 2023-07-10 | 2023-07-10 | Rotary platform and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220318632U true CN220318632U (en) | 2024-01-09 |
Family
ID=89416391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321785651.7U Active CN220318632U (en) | 2023-07-10 | 2023-07-10 | Rotary platform and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220318632U (en) |
-
2023
- 2023-07-10 CN CN202321785651.7U patent/CN220318632U/en active Active
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| GR01 | Patent grant | ||
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