Shell split type structure of excavator counterweight mold

Abstract

The utility model provides an excavator counterweight mould shell split type structure which comprises a left mould shell, a middle mould shell and a right mould shell, the left mould shell and the right mould shell can be directly connected together in a left-right butt joint mode, and the left mould shell, the middle mould shell and the right mould shell can be sequentially connected together in a butt joint mode from left to right. The split type structure can be used for assembling counterweight mold shells with different width sizes, so that the number of mold opening molds of the mold shells can be reduced, the investment cost of the mold opening molds is reduced, and meanwhile, the occupied area of the mold opening molds is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery counterweight manufacturing, in particular to a split structure of an excavator counterweight mould shell. Background Art

[0002] Excavator balance means that when the slewing platform, the cutting mechanism on the platform and the working device are in various positions, the combined force of their action shall not exceed the range of the slewing bearing, and the slewing bearing rollers shall be as evenly stressed as possible. To this end, in general, appropriate counterweights must be placed on the turntable to meet the above requirements. Improper increase of counterweights will lead to the following situations: when the counterweight is too small, the annular track and supporting rollers at the front of the turntable near the working device bear most of the load when the excavator is working, and thus suffer greater wear; when the counterweight is too large, the annular track at the tail of the turntable will suffer more severe wear.

[0003] At present, some excavator counterweights are made of mold shells poured with cement, that is, the mold shell plus the cement inside it together constitute the counterweight. In the production process, there are many designs of excavator counterweights, many models, different weights of counterweights, and different dimensions. If the mold shell of each type of counterweight is opened, the mold opening investment cost will be huge; at the same time, there are too many types of mold shells, resulting in many production molds for the mold shells, which occupy a large area of ​​the site. Utility Model Content

[0004] The purpose of the utility model is to provide a split structure of an excavator counterweight mold shell, which can be assembled into counterweight mold shells of different widths, thereby reducing the number of mold openings for the mold shell, thereby reducing the mold opening investment cost and also reducing the mold opening area.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a split structure of an excavator counterweight mold shell, which is characterized in that it includes a left mold shell, a middle mold shell, and a right mold shell. The left mold shell and the right mold shell can be directly butt-jointed together left and right, and the left mold shell, the middle mold shell and the right mold shell can be butt-jointed together in sequence from left to right.

[0006] Preferably, the split structure also includes a bottom plate assembly, which includes several assembly bottom plates of different widths, and the assembly bottom plates of corresponding widths can be fixedly connected to the upper parts of the left mold shell and the right mold shell that are directly spliced, and the assembly bottom plates of corresponding widths can be fixedly connected to the upper parts of the left mold shell, the middle mold shell and the right mold shell that are docked together.

[0007] Furthermore, a connecting extension plate is provided on both the left and right walls of the middle mold shell.

[0008] Furthermore, the middle mold shell and the two connecting extension plates are an integrated stamping structure.

[0009] Furthermore, the connecting extension plate is fixedly connected to the corresponding left mold shell or right mold shell by welding.

[0010] Furthermore, a camera installation opening is arranged at an upper middle position of the middle mold shell, and an accommodating cavity is arranged inside the camera installation opening. A camera mounting seat and a threading tube passing through the accommodating cavity are arranged in the accommodating cavity.

[0011] Furthermore, a threaded hole is provided on both the left and right sides of the camera installation opening.

[0012] Furthermore, a bending plate is arranged on the upper part of the middle mold shell, a vertical hanging wire seat is arranged on the bending plate, and the upper part of the hanging wire seat passes through the middle mold shell.

[0013] Preferably, the split structure further includes a lining plate, which is distributed along the joint seam between the left mold shell and the right mold shell that are directly connected, and the lining plate is fixedly connected to the left mold shell and the right mold shell by welding.

[0014] The beneficial effects of the utility model are as follows: the utility model has a simple structure and is easy to process and manufacture; by utilizing the combination of the left mold shell and the right mold shell and the combination of the left mold shell, the right mold shell and the middle mold shell, it is possible to realize the processing and manufacturing of more types of counterweight mold shells, thereby greatly reducing the number of mold opening molds for the counterweight mold shell. The reduction in the number of mold opening molds reduces the mold opening cost and, at the same time, reduces the area occupied by the mold site; by utilizing the extension plate on the middle mold shell, it is possible to improve the connection strength between the middle mold shell and the left mold shell and the right mold shell; by utilizing the lining plate, it is possible to improve the direct docking connection strength between the left mold shell and the right mold shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the first specific embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the docking of the left mold shell, the middle mold shell and the right mold shell;

[0018] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0020] Figure 5 for Figure 2 Enlarged view of point C in the middle;

[0021] In the figure: 1 left mold shell, 2 middle mold shell, 21 camera mounting port, 22 accommodating cavity, 23 camera mounting seat, 24 threading tube, 25 threaded hole, 26 bending plate, 27 lifting wire seat, 28 connecting extension plate, 3 right mold shell, 4 assembly base plate. DETAILED DESCRIPTION

[0022] The following will be combined with specific embodiments and attached Figure 1-5 , the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the preferred embodiments of the utility model, not all of the embodiments. Those skilled in the art can make similar modifications without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] The utility model provides a split structure of the shell of the counterweight mold of the excavator (such as Figure 1As shown), it includes a left mold shell 1, a middle mold shell 2, and a right mold shell 3. In actual applications, the left mold shell 1, the middle mold shell 2 and the right mold shell 3 can all be made of iron materials and are processed by stamping and forming technology. The specific structures of the left mold shell 1, the middle mold shell 2 and the right mold shell 3 can be designed according to the corresponding general structural form of the counterweight, so that the left mold shell 1, the middle mold shell 2 and the right mold shell 3 can be used to assemble different types of counterweight mold shells; the left mold shell 1 and the right mold shell 3 can be directly connected together on the left and right sides, and the left mold shell 1 and the right mold shell 3 can be directly connected to form a type of counterweight mold shell. At the same time, the docking boundary of the left mold shell 1 and the right mold shell 3 can be cut according to the actual needs of the counterweight width, and then different types of counterweight mold shells can be realized; the left mold shell 1, the middle mold shell 2 and the right mold shell 3 can be docked and connected together from left to right in sequence. When the left mold shell 1, the middle mold shell 2 and the right mold shell 3 are spliced ​​together, a type of counterweight mold shell is formed. When the left mold shell 1, the middle mold shell 2 and the right mold shell 3 are spliced, the docking boundary of the left mold shell 1 and the right mold shell 3 can also be cut according to the actual width of the counterweight, so as to meet the manufacturing of different types of counterweight mold shells. By using the combination of the left mold shell 1 and the right mold shell 2 and the combination of the left mold shell 1, the right mold shell 3 and the middle mold shell 2, more types of counterweight mold shells can be processed and manufactured, thereby greatly reducing the number of mold opening molds for the counterweight mold shell. The reduction in the number of mold opening molds reduces the mold opening cost, and at the same time, it also reduces the area occupied by the mold site.

[0024] In the actual production process, in order to improve the connection structure strength of the outer shell formed by directly connecting the left mold shell 1 and the right mold shell 3 or the outer shell formed by connecting the left mold shell 1, the middle mold shell 2 and the right mold shell 3 in sequence, the split structure also includes a bottom plate assembly, and the bottom plate assembly includes a plurality of assembly bottom plates 4 of different widths. The assembly bottom plates 4 of corresponding widths can be fixedly connected to the upper parts of the left mold shell 1 and the right mold shell 3 that are directly spliced, and the assembly bottom plates 4 of corresponding widths can be fixedly connected to the upper parts of the left mold shell 1, the middle mold shell 2 and the right mold shell 3 that are connected together.

[0025] On the basis of the above-mentioned embodiment, in order to facilitate the connection between the middle mold shell 2 and the left mold shell 1 and the right mold shell 3, a connecting extension plate 28 is arranged on the left side wall and the right side wall of the middle mold shell 2, and the middle mold shell 2 and the two connecting extension plates 28 are an integrated stamping structure. When the left mold shell 1, the middle mold shell 2 and the right mold shell 3 are spliced, the connecting extension plate 28 overlaps with the docking boundary of the left mold shell 1 or the docking boundary of the right mold shell 3 inside and outside, and the connecting extension plate 28 is welded to achieve a fixed connection with the corresponding left mold shell 1 or right mold shell 3.

[0026] In order to facilitate the installation of the reversing image camera on the middle mold shell 2, a camera installation opening 21 is provided at the upper middle position of the middle mold shell 2, and a receiving cavity 22 is provided inside the camera installation opening 21. A camera mounting seat 23 and a threading tube 24 passing through the receiving cavity 22 are provided in the receiving cavity 22. When installing the camera, the camera is inserted into the camera installation opening 21, and the camera is fixed in the receiving cavity 22 by using the camera mounting seat 23. At the same time, the communication line of the camera passes through the threading tube 24. In actual application, when the camera does not need to be installed, in order to facilitate the sealing of the camera installation opening 21, a threaded hole 25 is provided on both the left and right sides of the camera installation opening, and the cover plate is fixed by tightening the bolts in the corresponding threaded holes 25.

[0027] In order to facilitate the mobile lifting of the mold shell composed of the left mold shell 1, the middle mold shell 2 and the right mold shell 3, a bending plate 26 is arranged on the upper part of the middle mold shell 2, and a vertical lifting wire seat 27 is arranged on the bending plate 26, and the upper part of the lifting wire seat 27 passes through the middle mold shell 2.

[0028] When the left mold shell 1 and the right mold shell 3 are directly butt-jointed, in order to improve the butt-jointing strength of the left mold shell 1 and the right mold shell 3, the split structure further includes a lining plate, which is distributed along the butt joint of the left mold shell 1 and the right mold shell 3 that are directly butt-jointed, and the lining plate is fixedly connected to the left mold shell 1 and the right mold shell 3 by welding.

[0029] In the present utility model, "upper", "lower", "front", "back", "left" and "right" are relative positions used to conveniently describe positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.

[0030] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.

[0031] The above description in combination with the accompanying drawings has detailed the preferred implementation modes and embodiments of the utility model, but the utility model is not limited to the above implementation modes and embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the concept of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A split structure of the shell of an excavator counterweight mold, characterized in that: It includes a left mold shell, a middle mold shell, and a right mold shell. The left mold shell and the right mold shell can be directly butt-jointed together left and right, and the left mold shell, the middle mold shell and the right mold shell can be butt-jointed together in sequence from left to right; the split structure also includes a bottom plate assembly, and the bottom plate assembly includes several assembly bottom plates of different widths. The assembly bottom plates of corresponding widths can be fixedly connected to the upper parts of the left mold shell and the right mold shell that are directly spliced, and the assembly bottom plates of corresponding widths can be fixedly connected to the upper parts of the left mold shell, the middle mold shell and the right mold shell that are butt-jointed.

2. The split structure of the excavator counterweight mold shell according to claim 1 is characterized in that: A connecting extension plate is arranged on the left side wall and the right side wall of the middle mold shell.

3. The split structure of the excavator counterweight mold shell according to claim 2 is characterized in that: The middle mold shell and the two connecting extension plates are an integrated stamping structure.

4. The split structure of the excavator counterweight mold shell according to claim 2 is characterized in that: The connecting extension plate is fixedly connected to the corresponding left mold shell or right mold shell by welding.

5. The split structure of the excavator counterweight mold shell according to claim 3 or 4, characterized in that: A camera installation opening is arranged at the upper middle part of the middle mold shell, and an accommodating cavity is arranged inside the camera installation opening. A camera mounting seat and a threading tube passing through the accommodating cavity are arranged in the accommodating cavity.

6. The split structure of the excavator counterweight mold shell according to claim 5 is characterized in that: A threaded hole is arranged on both the left and right sides of the camera installation opening.

7. The split structure of the excavator counterweight mold shell according to claim 6 is characterized in that A bending plate is arranged on the upper part of the middle mold shell, a vertical hanging wire seat is arranged on the bending plate, and the upper part of the hanging wire seat passes through the middle mold shell.

8. The split structure of the excavator counterweight mold shell according to claim 1 is characterized in that: The split structure also includes a lining plate, which is distributed along the butt joint of the left mold shell and the right mold shell that are directly butted together, and the lining plate is fixedly connected to the left mold shell and the right mold shell by welding.

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