A special lower frame for excavators that is easy to maintain

Abstract

The present invention discloses a special lower frame for excavators that is easy to maintain, including an X-shaped connecting frame and a side connecting part, wherein a connecting tube is fixedly arranged on the outside of the X-shaped connecting frame, a bottom plate is fixedly arranged on the outside of the X-shaped connecting frame, a connecting groove is provided inside the side connecting part, the X-shaped connecting frame is located between the insides of the connecting groove, a side plate is fixedly provided on the outside of the side connecting part away from the side, the side plates are located around the outside of the X-shaped connecting frame, a top groove is provided inside the side connecting part, and a bottom groove is provided inside the side connecting part. The present invention adopts a split design, so that the device is greatly convenient in the process of production, installation, use, and maintenance. At the same time, when a part of the device is damaged and needs maintenance and repair, it can be disassembled at will, thereby avoiding the possibility of replacing all of it, greatly reducing the maintenance cost and difficulty of the lower frame.

Description

Technical Field

[0001] The invention relates to the technical field of engineering machinery, in particular to a special lower frame for an excavator which is easy to maintain. Background Art

[0002] At present, the lower frame of most excavators is made of one piece, so the overall lower frame is relatively large. The processing of the lower frame requires a large-scale fixture, and the temporary placement required for transportation and transfer takes up a large area. At the same time, when the lower frame is installed on the excavator, daily maintenance is difficult and costly. Therefore, a special lower frame for excavators that is easy to maintain is urgently needed to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a special underframe for excavators which is easy to maintain, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a special underframe for excavators that is easy to maintain, comprising an X-shaped connecting frame and a side connecting part, wherein a connecting tube is fixedly arranged on the outside of the X-shaped connecting frame, a bottom plate is fixedly arranged on the outside of the X-shaped connecting frame, connecting grooves are provided inside the side connecting parts, the X-shaped connecting frame is located between the insides of the connecting grooves, side plates are fixedly provided on the outside of the side connecting parts on one side away from the outside, the side plates are located around the outside of the X-shaped connecting frame, top grooves are provided inside the side connecting parts, and bottom grooves are provided inside the side connecting parts.

[0005] Preferably, a connecting tube is fixedly provided on the external top of the X-shaped connecting frame, a connecting steel plate is fixedly provided on the external lower end of the middle portion of the X-shaped connecting frame, and a bottom plate is fixedly provided on the external bottom end of the connecting steel plate.

[0006] Preferably, plate grooves are provided at the lower ends of both ends of the X-shaped connecting frame, the bottom plate is located between the plate grooves, screw holes are provided at both ends of the X-shaped connecting frame, and the bottom plate and the X-shaped connecting frame are fixedly connected by snap-fit ​​bolts.

[0007] Preferably, a connecting groove is provided at the middle part of the side connecting part, a top groove is provided at the top end of the side connecting part, and a bottom groove is provided at the bottom end of the side connecting part.

[0008] Preferably, the X-shaped connecting frames are all located between the inside of the connecting grooves, and slot holes are opened on both sides of the inside of the X-shaped connecting frames, and the slot holes correspond to the top groove and the bottom groove respectively.

[0009] Preferably, top bolts are fixedly arranged inside the top grooves, bottom bolts are fixedly arranged inside the bottom grooves, and side plates are fixedly arranged on the sides away from the outside of the side connection parts.

[0010] Preferably, the side panels are located around the outside of the X-shaped connecting frame, screw holes are opened vertically inside the side panels, connecting bolts are fixedly installed inside the screw holes corresponding to the side panels and the X-shaped connecting frame, and nuts are fixedly installed on the top ends of the connecting bolts.

[0011] Preferably, the side connecting parts are provided with screw holes on the inner surface on the side away from each other, the side panels are provided with screw holes in the horizontal direction, and positioning bolts are fixedly provided inside the screw holes corresponding to the side connecting parts and the side panels.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention adopts a split design, so that the device is extremely convenient in the process of production, installation, use and maintenance. At the same time, when a part of the internal part of the device is damaged and needs maintenance and repair, it can be disassembled at will, thereby avoiding the possibility of replacing all parts, greatly reducing the maintenance cost and difficulty of the lower frame;

[0014] 2. The present invention adopts a variety of bolts to cooperate with each other to assemble and install the lower frame, so that it can be disassembled and maintained during the maintenance process, which greatly increases the practicality of the device. At the same time, the two sides of the X-shaped connecting frame are arranged in a thick strip shape, which can be effectively connected with the side connecting part, thereby increasing the temperature resistance of the lower frame. The structure has the advantages of simple structure, easy use and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a special lower frame for an excavator that is easy to maintain according to the present invention;

[0016] Figure 2 This is a side view of the overall structure of a special lower frame for an excavator that is easy to maintain according to the present invention;

[0017] Figure 3 The present invention is a top view of the overall structure of a special lower frame for excavators that is easy to maintain.

[0018] In the figure: 1. connecting tube; 2. X-shaped connecting frame; 3. side connecting part; 31. top groove; 311. top bolt; 32. bottom groove; 321. bottom bolt; 33. slot hole; 34. connecting groove; 35. plate groove; 4. bottom plate; 41. connecting steel plate; 42. locking bolt; 5. side plate; 51. nut; 52. connecting bolt; 53. positioning bolt. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-3 The present invention provides a technical solution: a special lower frame for an excavator that is easy to maintain, comprising an X-shaped connecting frame 2 and a side connecting part 3, wherein a connecting tube 1 is fixedly arranged on the outside of the X-shaped connecting frame 2, a bottom plate 4 is fixedly arranged on the outside of the X-shaped connecting frame 2, a connecting groove 34 is opened inside the side connecting part 3, the X-shaped connecting frame 2 is located between the inside of the connecting groove 34, a side plate 5 is fixedly arranged on the side away from the outside of the side connecting part 3, the side plates 5 are all located around the outside of the X-shaped connecting frame 2, a top groove 31 is opened inside the side connecting part 3, and a bottom groove 32 is opened inside the side connecting part 3.

[0021] The external top of the X-shaped connecting frame 2 is fixedly provided with a connecting tube 1, the external lower end of the middle part of the X-shaped connecting frame 2 is fixedly provided with a connecting steel plate 41, and the external bottom end of the connecting steel plate 41 is fixedly provided with a bottom plate 4; the lower ends of both ends of the interior of the X-shaped connecting frame 2 are provided with plate grooves 35, and the bottom plate 4 is located between the inside of the plate grooves 35, and screw holes are provided at both ends of the interior of the X-shaped connecting frame 2, so that it is easier to connect and install during the installation process, and the bottom plate 4 and the X-shaped connecting frame 2 are fixedly connected by locking bolts 42; the middle part of the side connecting part 3 is provided with a connecting groove 34, the top end of the side connecting part 3 is provided with a top groove 31, and the bottom end of the side connecting part 3 is provided with a bottom groove 32; the X-shaped connecting frame 2 is located between the inside of the connecting grooves 34, and slot holes 33 are provided on both sides of the interior of the X-shaped connecting frame 2, and the slot holes 33 They correspond to the top groove 31 and the bottom groove 32 respectively; the top groove 31 is fixedly provided with a top bolt 311, the bottom groove 32 is fixedly provided with a bottom bolt 321, and the side connecting part 3 is fixedly provided with a side plate 5 on the side away from the outside; the side plates 5 are located around the outside of the X-shaped connecting frame 2, and screw holes are provided in the vertical direction inside the side plates 5, which is more convenient for the installation of the connecting bolts 52, and the connecting bolts 52 are fixedly provided in the screw holes corresponding to the side plates 5 and the X-shaped connecting frame 2, and nuts 51 are fixedly provided on the top ends of the connecting bolts 52; the side connecting part 3 is provided with screw holes on the inner surface on the side away from each other, and the side plates 5 are provided with screw holes in the horizontal direction, so that the positioning bolts 53 can be installed therein, and the positioning bolts 53 are fixedly provided in the screw holes corresponding to the side connecting part 3 and the side plates 5.

[0022] Working principle: When the device needs to be assembled and installed during use, the bottom plate 4 is first inserted into the plate groove 35, and then the bottom plate 4 is fixedly connected to the X-shaped connecting frame 2 through the locking bolts 42, and then the X-shaped connecting frame 2 and the bottom plate 4 are inserted into the side connecting part 3 and located in the connecting groove 34, and then the top bolts 311 are sequentially inserted into the top groove 31 and tightened until the top bolts 311 fix the side connecting part 3 and the X-shaped connecting frame 2. Similarly, the bottom bolts 321 are sequentially inserted into The inside of the bottom groove 32 is tightened until the bottom bolt 321 fixes the side connection part 3, the bottom plate 4 and the X-shaped connection frame 2 together, and then the side plate 5 is pressed against the outer surface of the side connection part 3 and aligned with the X-shaped connection frame 2 at the same time, so that the side plate 5 and the side connection part 3 can be initially fixed by the positioning bolt 53, and then the side plate 5 and the X-shaped connection frame 2 can be fixedly connected by the connection bolt 52 and the nut 51, and then the positioning bolt 53 is tightened and tightened, so that the side plate 5 and the side connection part 3 can be fixed.

[0023] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and 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 therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0025] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special lower frame for an excavator that is easy to maintain, comprising an X-shaped connecting frame (2) and a side connecting portion (3), characterized in that: The X-shaped connecting frame (2) is fixedly provided with a connecting tube (1) on the outside, the X-shaped connecting frame (2) is fixedly provided with a bottom plate (4) on the outside, the side connecting parts (3) are provided with connecting grooves (34) on the inside, the X-shaped connecting frame (2) is located between the inside of the connecting grooves (34), the side connecting parts (3) are fixedly provided with side plates (5) on the side away from the outside, the side plates (5) are located around the outside of the X-shaped connecting frame (2), the side connecting parts (3) are provided with top grooves (31) on the inside, and the side connecting parts (3) are provided with bottom grooves (31) on the inside. 2); a connecting tube (1) is fixedly provided at the top of the outside of the X-shaped connecting frame (2); a connecting steel plate (41) is fixedly provided at the lower end of the middle part of the outside of the X-shaped connecting frame (2); a bottom plate (4) is fixedly provided at the bottom end of the outside of the connecting steel plate (41); plate grooves (35) are provided at the lower ends of both ends of the inside of the X-shaped connecting frame (2); the bottom plate (4) is located between the inside of the plate grooves (35); screw holes are provided at both ends of the inside of the X-shaped connecting frame (2); the bottom plate (4) and the X-shaped connecting frame (2) are fixedly connected by means of locking bolts (42).

2. The excavator-specific lower frame that is easy to maintain according to claim 1 is characterized in that: A connection groove (34) is provided in the middle of each side connection part (3), a top groove (31) is provided at the top of each side connection part (3), and a bottom groove (32) is provided at the bottom of each side connection part (3).

3. The excavator-specific lower frame that is easy to maintain according to claim 2 is characterized in that: Slot holes (33) are provided on both sides of the X-shaped connecting frame (2), and the slot holes (33) correspond to the top slot (31) and the bottom slot (32) respectively.

4. The excavator-specific lower frame that is easy to maintain according to claim 3 is characterized in that: A top bolt (311) is fixedly disposed inside the top groove (31), and a bottom bolt (321) is fixedly disposed inside the bottom groove (32).

5. The excavator-specific lower frame that is easy to maintain according to claim 4 is characterized in that: The side plates (5) are provided with screw holes in the vertical direction, the screw holes corresponding to the side plates (5) and the X-shaped connecting frame (2) are fixedly provided with connecting bolts (52), and the top ends of the connecting bolts (52) are fixedly provided with nuts (51).

6. The excavator-specific lower frame that is easy to maintain according to claim 5 is characterized in that: The side connection parts (3) are provided with screw holes on their inner surfaces on the sides away from each other, the side panels (5) are provided with screw holes in the horizontal direction, and positioning bolts (53) are fixedly arranged inside the screw holes corresponding to the side connection parts (3) and the side panels (5).

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