Box-type frame and working machine

Abstract

The utility model relates to the technical field of vehicle chassis, and discloses a box-type vehicle frame and operation machinery, the box-type vehicle frame comprises a bottom plate, a pair of vertical plates and a top plate, the vertical plates extend along the length direction of the bottom plate, and the pair of vertical plates are arranged side by side at intervals; the top plate comprises a first lifting part, a middle part and a second lifting part which are sequentially connected in the length direction of the bottom plate, and the middle part is suitable for being connected with an upper vehicle; the distance between the first lifting part and the bottom plate is greater than the distance between the middle part and the bottom plate; and / or the distance between the second lifting part and the bottom plate is greater than the distance between the middle part and the bottom plate; the rigidity and the torsion resistance of the frame are improved, and the stability and the safety of the frame are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle chassis, in particular to a box-type vehicle frame and an operating machine. Background Art

[0002] As a representative product of the heavy industry, the frame stiffness design of the crane, especially the anti-torsion deformation ability, has a great influence on the load during construction. If the anti-torsion ability of the frame design is weak, the stability of the hoisting will be greatly weakened, and even a major accident may occur. Therefore, the research and development and innovation of the frame stiffness and anti-torsion ability are very necessary.

[0003] The main structure of the existing crane frame basically adopts a trapezoidal or rectangular cross-section. Due to the limitation of the vehicle's passability, that is, the height and width restrictions of the vehicle, there are limitations on improving the frame stiffness and anti-torsion performance, which greatly reduces the stability and safety of the frame. Utility Model Content

[0004] In view of this, the utility model provides a box-type frame and a working machine to solve the problems of low frame rigidity and weak anti-torsion ability.

[0005] On the one hand, the utility model provides a box-type frame device, including a bottom plate, a vertical plate and a top plate, wherein the vertical plates are arranged in a pair and both extend along the length direction of the bottom plate, and the pair of vertical plates are arranged side by side and spaced apart; the top plate includes a first raised portion, a middle portion and a second raised portion connected in sequence along the length direction of the bottom plate, and the middle portion is suitable for connecting to an upper vehicle; wherein the distance between the first raised portion and the bottom plate is greater than the distance between the middle portion and the bottom plate; and / or the distance between the second raised portion and the bottom plate is greater than the distance between the middle portion and the bottom plate.

[0006] Beneficial effect: By setting the distance between the first raised portion and the bottom plate to be greater than the distance between the middle portion and the bottom plate, and the distance between the second raised portion and the bottom plate to be greater than the distance between the middle portion and the bottom plate, the cross-section of the frame on both sides of the middle portion is increased without changing the width of the box-type frame and the height of the middle portion for installing the lifting equipment, and without affecting the installation of other components, thereby improving the rigidity and torsional resistance of the frame, thereby improving the stability and safety of the frame.

[0007] In an optional embodiment, the box-type frame also includes a first reinforcing plate, which is arranged between the first raised portion and the bottom plate, the first reinforcing plate is fixedly connected to a pair of the vertical plates, and the first reinforcing plate is fixedly connected to the middle portion; and / or, a second reinforcing plate, which is arranged between the second raised portion and the bottom plate, the second reinforcing plate is fixedly connected to a pair of the vertical plates, and the second reinforcing plate is fixedly connected to the middle portion.

[0008] Beneficial effect: The first reinforcing plate and the second reinforcing plate between the top plate and the bottom plate can further enhance the rigidity and anti-torsion performance of the frame, so as to further improve the stability and safety of the frame.

[0009] In an optional embodiment, a pair of the vertical panels each include a first side panel, a second side panel and a third side panel, the first reinforcing plate and the first raised portion are fixedly connected via a pair of the first side panels, the second reinforcing plate and the second raised portion are fixedly connected via a pair of the second side panels, and the bottom plate and the first reinforcing plate, the middle portion and the second reinforcing plate that are fixedly connected in sequence are fixedly connected via a pair of the third side panels.

[0010] Beneficial effect: The vertical plate includes a first side plate, a second side plate and a third side plate, so that a variety of assembly methods of the frame can be realized, such as first fixing the first raised portion of the top plate to a pair of first side plates, fixing the second raised portion to a pair of second side plates, and then fixing the first reinforcing plate to a pair of first side plates, fixing the second reinforcing plate to a pair of second side plates, and then fixing the pair of third side plates to the first reinforcing plate, the second reinforcing plate and the top plate, and finally fixing the bottom plate to the pair of third side plates to complete the assembly; it is also possible to fix the first reinforcing plate to a pair of first side plates and a pair of third side plates, fix the second reinforcing plate to a pair of third side plates and a pair of second side plates, and then connect the top plate and the bottom plate in sequence to complete the assembly.

[0011] In an optional embodiment, the distance between a pair of the vertical plates gradually decreases in a direction approaching the bottom plate.

[0012] Beneficial effect: The distance between a pair of vertical plates gradually decreases in the direction approaching the bottom plate, thereby forming a trapezoidal cross section.

[0013] In an optional embodiment, a seat ring assembly is provided on the middle portion, suitable for connection with the upper vehicle, and a seat ring cover plate is provided in the seat ring assembly.

[0014] Beneficial effect: The fifth cover plate is fixedly connected in the seat ring, so that the rigidity of the seat ring can be enhanced, thereby further improving the rigidity and torsional resistance of the frame, thereby improving the stability and safety of the frame.

[0015] In an optional embodiment, the inner surface of the top plate and the inner surfaces of the pair of vertical plates are both provided with reinforcing ribs.

[0016] Beneficial effect: The provision of the reinforcing ribs can further improve the rigidity and torsional resistance of the frame, thereby improving the stability and safety of the frame.

[0017] In an optional embodiment, a plurality of weight-reducing holes are arranged on the top plate at intervals along the length direction of the bottom plate.

[0018] Beneficial effect: The setting of the weight-reducing holes can reduce the weight of the box-type frame without affecting the rigidity and torsional resistance of the frame, thereby reducing the cost of the box-type frame.

[0019] In an optional embodiment, the first elevated portion, the middle portion and the second elevated portion are an integrally formed structure.

[0020] Beneficial effects: The first raised portion, the middle portion and the second raised portion are an integrally formed structure and can be produced by a bending process or a compression molding process, thereby reducing the assembly process of the box-type frame.

[0021] In an optional embodiment, the first elevated portion includes a first cover plate and a first connecting plate connected in sequence, the first connecting plate is connected to the middle portion, and the second elevated portion includes a second cover plate and a second connecting plate connected in sequence, the second connecting plate is connected to the middle portion.

[0022] Beneficial effect: The first raised portion includes a first cover plate and a first connecting plate connected in sequence, the first connecting plate is connected to the middle portion, and the second raised portion includes a second cover plate and a second connecting plate connected in sequence, the second connecting plate is connected to the middle portion, which facilitates changing the thickness of different parts of the top and the assembly method.

[0023] On the other hand, the utility model also provides a working machine, comprising the box-type frame as described above.

[0024] Beneficial effect: Because the working machine includes a box-type frame, it has the same effect as the box-type frame and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a front view of a box-type frame according to an embodiment of the utility model;

[0027] Figure 2 A top view of a box-type frame according to an embodiment of the utility model;

[0028] Figure 3 A bottom view of a box-type frame of an embodiment of the utility model with the bottom plate, the first reinforcement plate and the second reinforcement plate removed;

[0029] Figure 4 for Figure 2 Schematic diagram of the structure at AA in the middle;

[0030] Figure 5 for Figure 2 Schematic diagram of the structure with the second reinforcement plate removed at the middle BB.

[0031] Description of reference numerals:

[0032] 1. Bottom plate, 2. Vertical plate, 3. Top plate, 4. First reinforcing plate, 5. Reinforcing ribs, 6. Weight reduction holes;

[0033] 201, first side plate, 202, third side plate;

[0034] 301, first elevated portion, 302, middle portion, 303, second elevated portion, 304, seat ring assembly, 305, seat ring cover plate;

[0035] 3011, a first cover plate, 3012, a first connecting plate, 3031, a second cover plate, 3032, a second connecting plate. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0037] The main structure of the crane frame in the related technology basically adopts a trapezoidal or rectangular cross-section. Due to the limitation of the vehicle's passability, that is, the height and width restrictions of the vehicle, there are limitations on improving the frame stiffness and anti-torsion performance, which greatly reduces the stability and safety of the frame.

[0038] Combine the following Figures 1 to 5 , describing an embodiment of the utility model.

[0039] According to an embodiment of the utility model, on the one hand, a box-type frame is provided, such as Figure 1 , Figure 2 and Figure 5 As shown, it includes a bottom plate 1, a vertical plate 2 and a top plate 3, the vertical plates 2 are arranged in a pair and both extend along the length direction of the bottom plate 1, and the pair of vertical plates 2 are arranged side by side at intervals; the top plate 3 includes a first raised portion 301, a middle portion 302 and a second raised portion 303 connected in sequence along the length direction of the bottom plate 1, and the middle portion 302 is suitable for connecting to the upper vehicle; wherein, the distance between the first raised portion 301 and the bottom plate 1 is greater than the distance between the middle portion 302 and the bottom plate 1; and / or, the distance between the second raised portion 303 and the bottom plate 1 is greater than the distance between the middle portion 302 and the bottom plate 1.

[0040] It should be noted that the middle part 302 can be provided with a seat ring assembly 304, which is suitable for connecting with the upper vehicle, specifically, connecting with the turntable. Its structure is an existing structure and will not be described in detail here.

[0041] In this embodiment, by setting the distance between the first raised portion 301 and the bottom plate 1 to be greater than the distance between the middle portion 302 and the bottom plate 1, and the distance between the second raised portion 303 and the bottom plate 1 to be greater than the distance between the middle portion 302 and the bottom plate 1, the cross-section of the frame on both sides of the middle portion 302 is increased without changing the width of the box-type frame and the height of the middle portion 302 for installing the lifting equipment, and without affecting the installation of other components, thereby improving the rigidity and torsional resistance of the frame, thereby improving the stability and safety of the frame.

[0042] In one embodiment, if Figure 4 As shown, the box-type frame also includes a first reinforcing plate 4 and a second reinforcing plate, the first reinforcing plate 4 is arranged between the first raised portion 301 and the bottom plate 1, the first reinforcing plate 4 is connected to a pair of vertical plates 2 by welding or / and screwing, and the first reinforcing plate 4 is connected to the middle portion 302 by welding or screwing; and / or, the second reinforcing plate is arranged between the second raised portion 303 and the bottom plate 1, the second reinforcing plate is connected to a pair of vertical plates 2 by welding or screwing, and the second reinforcing plate is connected to the middle portion 302 by welding or screwing.

[0043] In this embodiment, the first reinforcing plate 4 and the second reinforcing plate between the top plate 3 and the bottom plate 1 can further enhance the rigidity and anti-torsion performance of the frame, so as to further improve the stability and safety of the frame.

[0044] In a specific embodiment, Figure 4As shown, a pair of vertical plates 2 each include a first side plate 201, a second side plate and a third side plate 202; the first reinforcing plate 4 and the first raised portion 301 are fixedly connected via a pair of first side plates 201, and the specific connection method is welding or screwing; the second reinforcing plate and the second raised portion 303 are fixedly connected via a pair of second side plates, and the specific connection method is welding or screwing; the bottom plate 1 and the first reinforcing plate 4, the middle portion 302 and the second reinforcing plate that are fixedly connected in sequence are fixedly connected via a pair of third side plates 202, and the specific connection method is welding or screwing.

[0045] In this embodiment, the vertical plate 2 includes a first side plate 201, a second side plate and a third side plate 202, so that a variety of assembly methods of the frame can be realized; such as method ①: firstly, the first raised portion 301 of the top plate 3 is fixedly connected to a pair of first side plates 201, the second raised portion 303 is fixedly connected to a pair of second side plates, and then the first reinforcing plate 4 is fixedly connected to the pair of first side plates 201, the second reinforcing plate is fixedly connected to the pair of second side plates, and then the pair of third side plates 202 are fixedly connected to the first reinforcing plate 4, the second reinforcing plate The plate and the top plate 3 are fixedly connected, and finally the bottom plate 1 is fixedly connected to a pair of third side plates 202 to complete the assembly; for example, in method ②, the first reinforcing plate 4 is first fixedly connected to a pair of first side plates 201 and a pair of third side plates 202, and the second reinforcing plate is fixedly connected to a pair of third side plates 202 and a pair of second side plates, and then the top plate 3 and the bottom plate 1 are connected in sequence to complete the assembly. Since there are multiple side plates, workers can assemble and connect them according to their own assembly habits, thereby improving the assembly efficiency.

[0046] In one embodiment, if Figure 4 and Figure 5 As shown, the distance between a pair of vertical plates 2 gradually decreases in the direction approaching the bottom plate 1. Specifically, the side lines of the cross sections of the pair of vertical plates 2 are straight lines or arcs, wherein the arcs can be concave arcs or convex arcs.

[0047] In this embodiment, the distance between a pair of vertical plates 2 gradually decreases in a direction approaching the bottom plate 1, thereby forming a trapezoidal cross section.

[0048] In one embodiment, if Figure 2 and Figure 3 As shown, a seat ring assembly 304 is disposed on the middle portion 302 , which is suitable for connection with an upper vehicle, and a seat ring cover plate 305 is disposed inside the seat ring assembly 304 .

[0049] In this embodiment, the fifth cover plate is fixedly connected in the seat ring assembly 304, which can enhance the rigidity of the middle portion 302, thereby further improving the rigidity and torsional resistance of the frame, thereby improving the stability and safety of the frame.

[0050] In one embodiment, if Figure 3 As shown, the inner surface of the top plate 3 and the inner surface of a pair of vertical plates 2 are both provided with reinforcing ribs 5 . Specifically, the reinforcing ribs 5 are crisscrossed on the top plate 3 , and the reinforcing ribs 5 extend on the vertical plates 2 in a direction close to the bottom plate 1 .

[0051] In this embodiment, the provision of the reinforcing ribs 5 can further improve the rigidity and torsional resistance of the frame, so as to improve the stability and safety of the frame.

[0052] In one embodiment, if Figure 2 and Figure 3 As shown, a plurality of weight-reducing holes 6 are arranged on the top plate 3 at intervals along the length direction of the bottom plate 1 . Specifically, the weight-reducing holes 6 may be in a circular, elliptical, square or other shape.

[0053] In this embodiment, the provision of the weight-reducing holes 6 can reduce the weight of the box-type frame without affecting the rigidity and torsional resistance of the frame, thereby reducing the cost of the box-type frame.

[0054] In one embodiment, the first elevated portion 301 , the middle portion 302 , and the second elevated portion 303 are an integrally formed structure.

[0055] It should be noted that the above-mentioned one-piece structure, that is, the connection between the various connecting components does not need to be fixed by subsequent connection means (such as welding, threaded connection, etc.).

[0056] In this embodiment, the first raised portion 301, the middle portion 302 and the second raised portion 303 are an integrally formed structure, which can be produced by a bending process or a compression molding process, thereby reducing the assembly process of the box-type frame.

[0057] In a specific embodiment, the first raised portion 301 includes a first cover plate 3011 and a first connecting plate 3012 connected in sequence, the first connecting plate 3012 is connected to the middle portion 302, and the second raised portion 303 includes a second cover plate 3031 and a second connecting plate 3032 connected in sequence, the second connecting plate 3032 is connected to the middle portion 302, and the connection method can be welding.

[0058] More specifically, the first connecting plate 3012 and the second connecting plate 3032 are both curved plates, which can reduce the edges and corners of the box-type frame, thereby reducing stress concentration, further improving the rigidity and torsional resistance of the frame, and thus improving the stability and safety of the frame.

[0059] In this embodiment, the first raised portion 301 includes a first cover plate 3011 and a first connecting plate 3012 connected in sequence, the first connecting plate 3012 is connected to the middle portion 302, and the second raised portion 303 includes a second cover plate 3031 and a second connecting plate 3032 connected in sequence, the second connecting plate 3032 is connected to the middle portion 302, which facilitates changing the thickness of different parts of the top and the assembly method.

[0060] According to an embodiment of the present utility model, on the other hand, a working machine is provided, comprising the above-mentioned box-type frame, wherein the working machine specifically refers to a vehicle such as a crane or a hoist.

[0061] In this embodiment, since the working machine includes a box-type frame, it has the same effect as the box-type frame and will not be described in detail here.

[0062] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A box-type frame, characterized in that: include: Bottom plate (1); The vertical plates (2) are arranged in a pair and both extend along the length direction of the bottom plate (1), and the pair of vertical plates (2) are arranged side by side and spaced apart; and A top plate (3), the top plate (3) comprising a first raised portion (301), a middle portion (302) and a second raised portion (303) sequentially connected along the length direction of the bottom plate (1), the middle portion (302) being suitable for connection with an upper vehicle; wherein, The distance between the first raised portion (301) and the bottom plate (1) is greater than the distance between the middle portion (302) and the bottom plate (1); And / or, the distance between the second raised portion (303) and the bottom plate (1) is greater than the distance between the middle portion (302) and the bottom plate (1).

2. The box-type frame according to claim 1, characterized in that: Also includes: A first reinforcing plate (4) is arranged between the first raised portion (301) and the bottom plate (1), the first reinforcing plate (4) being fixedly connected to a pair of the vertical plates (2), and the first reinforcing plate (4) being fixedly connected to the middle portion (302); And / or, a second reinforcing plate is arranged between the second raised portion (303) and the bottom plate (1), the second reinforcing plate is fixedly connected to a pair of the vertical plates (2), and the second reinforcing plate is fixedly connected to the middle portion (302).

3. The box-type frame according to claim 2, characterized in that: The pair of vertical panels (2) each include a first side panel (201), a second side panel and a third side panel (202); the first reinforcing panel (4) and the first raised portion (301) are fixedly connected via a pair of the first side panels (201); the second reinforcing panel and the second raised portion (303) are fixedly connected via a pair of the second side panels; the bottom panel (1) and the first reinforcing panel (4), the middle portion (302) and the second reinforcing panel, which are fixedly connected in sequence, are fixedly connected via a pair of the third side panels (202).

4. The box-type frame according to any one of claims 1 to 3, characterized in that: The distance between the pair of vertical plates (2) gradually decreases in the direction approaching the bottom plate (1).

5. The box-type frame according to any one of claims 1 to 3, characterized in that: The middle part (302) is provided with a seat ring assembly (304) suitable for connection with the upper vehicle, and a seat ring cover plate (305) is provided inside the seat ring assembly (304).

6. The box-type frame according to any one of claims 1 to 3, characterized in that: The inner surface of the top plate (3) and the inner surfaces of the pair of vertical plates (2) are both provided with reinforcing ribs (5).

7. The box-type frame according to any one of claims 1 to 3, characterized in that: A plurality of weight-reducing holes (6) are arranged on the top plate (3) at intervals along the length direction of the bottom plate (1).

8. The box-type frame according to any one of claims 1 to 3, characterized in that: The first raised portion (301), the middle portion (302) and the second raised portion (303) are an integrally formed structure.

9. The box-type frame according to any one of claims 1 to 3, characterized in that: The first raised portion (301) includes a first cover plate (3011) and a first connecting plate (3012) connected in sequence, and the first connecting plate (3012) is connected to the middle portion (302). The second raised portion (303) includes a second cover plate (3031) and a second connecting plate (3032) connected in sequence, and the second connecting plate (3032) is connected to the middle portion (302).

10. A working machine, characterized in that: It comprises a box-type frame as described in any one of claims 1 to 9.

Images