CN217811319U - Engineering machine frame and engineering machine - Google Patents
Engineering machine frame and engineering machine Download PDFInfo
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- CN217811319U CN217811319U CN202222089627.1U CN202222089627U CN217811319U CN 217811319 U CN217811319 U CN 217811319U CN 202222089627 U CN202222089627 U CN 202222089627U CN 217811319 U CN217811319 U CN 217811319U
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- frame
- skirt
- transverse plate
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- longitudinal beam
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Abstract
The utility model discloses an engineering machinery frame and engineering machinery, which comprises a main body component, a left skirt component, a right skirt component, a plurality of beam components and a counterweight mounting bracket; the body member includes a bottom plate and a pair of left and right side members provided on a top surface of the bottom plate; the left skirt component and the right skirt component are horizontally arranged on the left side and the right side of the main body component; a plurality of beam members disposed between the body member and the right skirt member and between the body member and the left skirt member, respectively; a counterweight mounting bracket is mounted on the transverse plate between the left and right longitudinal beam rear ends and is also connected to the left and right longitudinal beams extending from the transverse plate for attaching a counterweight. The utility model discloses about will longeron extension and counter weight on the installed part board combination bear, solved the problem of opening the welding around the counter weight installing support, increased the reliability of frame.
Description
Technical Field
The utility model relates to a frame that mounting panel combination was born on longeron extension and the counter weight about belongs to the excavator field.
Background
In general, a hydraulic excavator includes a lower traveling body, an upper slewing body rotatably mounted on the lower traveling body, and a work arm unit operatively mounted on the upper slewing body. The frame of the upper slewing body includes a body member, a pair of left and right skirt members horizontally disposed on both sides of the body member and extending in the longitudinal direction, and a plurality of beam members connecting the body member and each skirt member. The mounting portion of the working arm device is provided on the front end side of the body member for mounting the working arm device, and the weight attaching portion is provided on the rear end portion of the body member for attaching a weight so as to be balanced with the working arm device. When the hydraulic excavator travels on highly uneven ground or when it drills with a work arm device, the counterweight may oscillate and tilt in the horizontal direction when the entire vehicle vibrates. That is, the right and left end portions of the weight may be alternately vertically movable around the weight attachment portion of the main body member. In this case, a torsional load acts on the frame of the upper slewing body, which deforms the right skirt member by tilting it from front to back and upward, and deforms the left skirt member by tilting it from front to back and downward. When a torsional load acts on the frame of the upper slewing body, stress can be concentrated on each position of the frame, so that cracks can occur at each position of the frame, particularly the connecting weld of the rear cross member to which the counterweight mounting assembly is connected and the left and right longitudinal vertical plates. When the counterweight mounting assembly is combined with the frame in a welding mode, the welding requirement is high, and the welding seam cracking phenomenon is more due to welding defects at the position.
In a frame used in a hydraulic excavator, a counterweight mounting support of the frame is connected to a rear cross beam through welding, the rear cross beam is connected with a left longitudinal beam, a right longitudinal beam and a bottom plate through welding, torsional load and bending load of a counterweight are transmitted by a welding line, the requirement on welding is high, and when the welding line has defects, the welding line of the rear cross beam and the left longitudinal beam and the right longitudinal beam cracks.
SUMMERY OF THE UTILITY MODEL
According to the not enough that prior art exists, the utility model provides an engineering machine tool frame, longeron extension and counter weight are gone up the installed part board combination and are born about will, have solved the problem of opening the welding around the counter weight installing support, have increased the reliability of frame.
The utility model discloses realize according to following technical scheme:
the utility model discloses an engineering machinery frame in a first aspect, which comprises a main body component, a left skirt component, a right skirt component, a plurality of beam components and a counterweight mounting bracket; the body member includes a bottom plate and a pair of left and right side members provided on a top surface of the bottom plate; the left skirt component and the right skirt component are horizontally arranged on the left side and the right side of the main body component; a plurality of beam members disposed between the body member and the right skirt member and between the body member and the left skirt member, respectively; a counterweight mounting bracket is mounted on the transverse plate between the left and right longitudinal beam rear ends and is also connected to the left and right longitudinal beams extending from the transverse plate for attaching a counterweight.
In some embodiments, the counterweight mounting bracket includes a support and a mount; the supporting members are symmetrically arranged behind the transverse plate and connected with the top surface of the rear end part of the bottom plate and the rear surface of the transverse plate; the mounting members are symmetrically disposed behind the lateral plate, one of which is connected to the inner side surface of the left side member, the rear surface of the lateral plate and the top end portion of the support member, and the other of which is connected to the inner side surface of the right side member, the rear surface of the lateral plate and the top end portion of the support member.
In some embodiments, the mounting member is provided with at least one bolt hole, and the weight is fixed to the body member by the mounting bolt.
In some embodiments, the front side of the support and the transverse plate have left and right welding seams in the vertical direction; and two welding seams are arranged at the connecting positions of the upper side and the lower side of the mounting piece and the supporting piece.
In some embodiments, the mounting part and the left longitudinal beam are provided with two welding seams at the joint of the upper side and the lower side, and the mounting part and the right longitudinal beam are provided with two welding seams at the joint of the upper side and the lower side.
In some embodiments, the support member is provided with a through hole or a break.
In some embodiments, the transverse plate and the left longitudinal beam have a front welding seam and a rear welding seam in the vertical direction, and the transverse plate and the right longitudinal beam have a front welding seam and a rear welding seam in the vertical direction.
In some embodiments, the left and right skirt members are each box-type structures.
In some embodiments, one plate girder member is connected to each of the tail portion between the left skirt member and the left side member and the tail portion between the right skirt member and the right side member in a vertically erected manner.
The utility model discloses engineering machine tool is disclosed in the second aspect, installs foretell engineering machine tool frame.
The utility model discloses beneficial effect:
the utility model designs a new frame of a counterweight connecting structure, wherein the left and right longitudinal beams extend to the rearmost end of the frame integrally to form a bearing part with a counterweight mounting bracket; the frame is formed by welding seams to bear the torsion which is added to the frame by the counterweight, and the bearing of the welding seams is reduced through structural optimization.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments and that for a person skilled in the art, other drawings can also be derived from them without inventive effort.
In the drawings:
fig. 1 is a schematic structural diagram of an engineering machinery frame of the present invention;
fig. 2 is a perspective view of the counterweight mounting bracket of the present invention;
fig. 3 is a front view of the counterweight mounting bracket of the present invention;
fig. 4 is a top view of the counterweight mounting bracket of the present invention.
The attached drawings are as follows: 1-frame, 2-body member, 3-bottom plate, 4-beam member, 5-left skirt member, 6-plate beam member, 7-left longitudinal beam, 8-1-mounting member, 8-2-supporting member, 9-transverse plate, 10-right longitudinal beam, 11-plate beam member, 12-right skirt member, 13-bolt hole.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, 2, 3, 4, a frame 1 of a construction machine includes a main body member 2, a left skirt member 5, a right skirt member 12, a plurality of beam members 4, and a counterweight mounting bracket; the body member 2 includes a bottom plate 3 and a pair of left and right side members 7 and 10 provided on a top surface of the bottom plate 3; left and right skirt members 5, 12 are horizontally provided on the left and right sides of the body member 2; a plurality of beam members 4 are provided between the body member 2 and the right skirt member 12 and between the body member 2 and the left skirt member 5, respectively; the counterweight mounting bracket is mounted on a transverse plate 9 between the rear ends of the left and right longitudinal beams 7, 10 and is also connected to the left and right longitudinal beams 7, 10 extending from the transverse plate 9 for attaching a counterweight for balancing with the work arm arrangement. The utility model discloses a new counter weight connection structure's frame has solved the problem of opening the welding around the counter weight installing support, has increased the reliability of frame.
With continued reference to FIG. 2, the counterweight mounting bracket includes a support member 8-2 and a mounting member 8-1; the supporting members 8-2 are symmetrically arranged behind the lateral plate 9, and are connected to the top surface of the rear end portion of the base plate 3 and the rear surface of the lateral plate 9; the mounting members 8-1 are symmetrically arranged behind the lateral plate 9, one of which is connected to the inner side face of the left longitudinal beam 7, the rear face of the lateral plate 9 and the top end portion of the support member 8-2, and the other of which is connected to the inner side face of the right longitudinal beam 10, the rear face of the lateral plate 9 and the top end portion of the support member 8-2.
Further scheme: a pair of bolt holes 13 are formed at intervals in the longitudinal direction on the mount 8-1. In addition, a mounting bolt passes through each bolt hole 13 from below, so that a weight mounted on the top surface of the mount 8-1 is attached to the frame 1 by the mounting bolt.
The welding requirement of the counterweight bracket is as follows: two welding seams are formed in the front and back of the transverse plate 9 and the left longitudinal beam 7 in the vertical direction, two welding seams are formed in the front and back of the transverse plate 9 and the right longitudinal beam 10 in the vertical direction, two welding seams are formed in the front side of each supporting piece 8-2 and the transverse plate 9 in the vertical direction, two welding seams are formed in the upper side and the lower side of each mounting piece 8-1 and the left longitudinal beam 7, two welding seams are formed in the upper side and the lower side of each mounting piece 8-1 and the right longitudinal beam 10, and two welding seams are formed in the connecting position of the upper side and the lower side of each mounting piece 8-1 and the supporting piece 8-2.
With continued reference to fig. 1, left and right skirt members 5, 12 are each of box-type construction. A plate girder component 6 which is arranged in a vertical standing mode is connected at the tail part between the left skirt component 5 and the left longitudinal girder 7; a plate girder member 11 arranged in a vertically standing manner is connected to each end portion between the right skirt member 12 and the right side member 10.
It should be noted that the height of the mounting member 8-1 and the adjacent member may be adjusted by welding with an increased cut, and the supporting member 8-2 may be trapezoidal, triangular-like, trapezoidal-like, or other shape, and may or may not have a hole or a notch formed thereon.
To sum up, the utility model designs a new frame of a counterweight connecting structure, the left and right longitudinal beams extend to the rearmost end of the frame integrally to form a bearing part with the counterweight mounting bracket; the frame is formed by welding seams to bear the torsion which is added to the frame by the counterweight, and the bearing of the welding seams is reduced through structural optimization.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments, not others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments by utilizing the above technical contents without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical matters of the present invention are within the scope of the present invention.
Claims (10)
1. A frame for a construction machine, comprising:
a body member including a bottom plate and a pair of left and right side members disposed on a top surface of the bottom plate;
left and right skirt members horizontally disposed on left and right sides of the body member;
a plurality of beam members disposed between the body member and the right skirt member and between the body member and the left skirt member, respectively;
a counterweight mounting bracket mounted on the transverse plate between the left and right longitudinal beam rear ends and further connected to the left and right longitudinal beams extending from the transverse plate for attaching a counterweight.
2. A frame for a work machine according to claim 1, wherein the counterweight mounting bracket comprises:
a support member symmetrically disposed behind the lateral plate, connected to a top surface of the rear end portion of the base plate and a rear surface of the lateral plate;
and the mounting pieces are symmetrically arranged behind the transverse plate, one of the mounting pieces is connected with the inner side face of the left longitudinal beam, the rear surface of the transverse plate and the top end part of the supporting piece, and the other mounting piece is connected with the inner side face of the right longitudinal beam, the rear surface of the transverse plate and the top end part of the supporting piece.
3. A frame for a construction machine according to claim 2, wherein:
the mounting part is provided with at least one bolt hole, and the balance weight is fixed on the main body component through the mounting bolt.
4. A frame for a construction machine according to claim 2, wherein:
a left welding line and a right welding line are arranged on the front side of the supporting piece and the transverse plate in the vertical direction;
and two welding seams are arranged at the connecting positions of the upper side and the lower side of the mounting piece and the supporting piece.
5. A frame for a work machine according to claim 2, wherein:
the installed part has two welding seams with left longeron in both sides junction from top to bottom, and the installed part has two welding seams with right longeron in both sides junction from top to bottom.
6. A frame for a work machine according to claim 2, wherein:
the supporting piece is provided with a through hole or a gap.
7. A frame for a work machine according to claim 1, wherein:
the transverse plate and the left longitudinal beam are provided with a front welding line and a rear welding line in the vertical direction, and the transverse plate and the right longitudinal beam are provided with a front welding line and a rear welding line in the vertical direction.
8. A frame for a work machine according to claim 1, wherein:
the left skirt part component and the right skirt part component are both box-shaped structures.
9. A frame for a work machine according to claim 1, wherein:
and a plate girder component which is vertically arranged is respectively connected to the tail part between the left skirt component and the left longitudinal beam and the tail part between the right skirt component and the right longitudinal beam.
10. A construction machine, characterized in that:
a construction machine frame according to any one of claims 1 to 9 is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222089627.1U CN217811319U (en) | 2022-08-10 | 2022-08-10 | Engineering machine frame and engineering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222089627.1U CN217811319U (en) | 2022-08-10 | 2022-08-10 | Engineering machine frame and engineering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217811319U true CN217811319U (en) | 2022-11-15 |
Family
ID=83973843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222089627.1U Active CN217811319U (en) | 2022-08-10 | 2022-08-10 | Engineering machine frame and engineering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217811319U (en) |
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2022
- 2022-08-10 CN CN202222089627.1U patent/CN217811319U/en active Active
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