Counterweight mounting assembly for mine type hydraulic excavator

Abstract

The utility model discloses a counterweight mounting assembly for a mine type hydraulic excavator, which comprises a vertical plate connected to the hydraulic excavator, a plurality of thread bushings and a plurality of base plates, the thread bushings and the base plates are connected to one side, far away from the hydraulic excavator, of the vertical plate, and a plurality of fixing holes are symmetrically formed in the vertical plate along the center line in the vertical direction. The threaded sleeve comprises a sleeve body and a fixing section connected to one end of the sleeve body, the outer diameter of the sleeve body is matched with the inner diameter of the fixing hole, the sleeve body is sleeved with the fixing hole, the periphery of the fixing section and the periphery of the sleeve body are in transition connection with a fixing face, and the fixing face is fixed to the side, away from the hydraulic excavator, of the vertical plate. The side portion of the balance weight is connected to the vertical plate through a threaded sleeve, and the threaded sleeve is connected with the vertical plate through a fastener. After the assembly fixes the counter weight, the threaded sleeve and the base plate achieve the secondary supporting and fixing effect on the counter weight, the threaded sleeve can enable the counter weight to be fixed not to be loosened easily and to be more stable, and good fixing effect and safety are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic excavator accessories, and in particular relates to a counterweight installation component used for a mining type hydraulic excavator. Background Art

[0002] A mining hydraulic excavator is an earth-moving machine that uses a bucket to dig materials above or below the bearing surface and loads them into transport vehicles or unloads them to stockpiles. The materials excavated by a mining hydraulic excavator are mainly soil, coal, and pre-loosened soil and rock. Judging from the development of construction machinery in recent years, the development of mining hydraulic excavators has been relatively rapid. Mining hydraulic excavators have become one of the most important construction machinery in large-scale mining projects.

[0003] During operation, a mining hydraulic excavator usually needs to be equipped with a counterweight at the tail to prevent tipping and meet the stability requirements of the entire machine. The counterweight is generally installed in a hanging or supporting manner, and the counterweight is connected to the platform by bolts. The mining excavator can match different accessories and corresponding counterweights. The installation structure of the counterweight in the prior art is to weld the vertical plate with three different specifications of pads, and process threaded holes at corresponding positions to assemble the counterweight. This installation structure is deformed due to welding, and the vertical plate and the pad cannot fit tightly, which will cause defects during thread processing, making it difficult to install the counterweight bolts, which are easy to loosen during operation, posing a safety hazard. In summary, there is an urgent need for a counterweight installation assembly that is easy to install and has strong stability. Utility Model Content

[0004] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the utility model provides a counterweight installation assembly for a mining type hydraulic excavator, through which the hydraulic excavator is connected to a counterweight, and the counterweight installation assembly for the mining type hydraulic excavator includes a vertical plate connected to the hydraulic excavator, a plurality of threaded sleeves and a plurality of pads connected to a side of the vertical plate away from the hydraulic excavator, wherein:

[0005] The vertical plate is provided with a plurality of fixing holes symmetrically arranged along the vertical center line, the plurality of pads are symmetrically distributed along the vertical center line, and the pads are arranged at the bottom of the counterweight;

[0006] The threaded sleeve includes a sleeve body and a fixed section connected to one end of the sleeve body. The outer diameter of the sleeve body matches the inner diameter of the fixing hole. The sleeve body is sleeved in the fixing hole. The outer periphery of the fixed section and the outer periphery of the sleeve body are transitionally connected with a fixing surface. The fixing surface is fixed to the side of the vertical plate away from the hydraulic excavator. The side of the counterweight is connected to the vertical plate through the threaded sleeve. The threaded sleeve and the vertical plate are connected by fasteners.

[0007] As a specific implementation, in the above-mentioned counterweight installation assembly for a mining type hydraulic excavator, a slot is provided on a side of the counterweight close to the vertical plate, and the slot matches the pad.

[0008] As a specific implementation, in the above-mentioned counterweight installation assembly for a mining type hydraulic excavator, the fixing surface is fixed to one end of the vertical plate by welding.

[0009] As a specific implementation, in the above-mentioned counterweight installation assembly for a mining type hydraulic excavator, the pad is fixed to one end of the vertical plate by welding.

[0010] As a specific implementation, in the above-mentioned counterweight installation assembly for a mining type hydraulic excavator, the number of the threaded sleeves is 2 to 10.

[0011] As a specific implementation, in the above-mentioned counterweight installation assembly for a mining type hydraulic excavator, the number of the pads is 2 to 6.

[0012] The counterweight installation assembly for a mining hydraulic excavator of the utility model has the following advantages and beneficial effects:

[0013] This component has a simple structure and is easy to assemble and disassemble. After the counterweight is fixed, the threaded sleeve supports and fixes the counterweight, and the pad provides secondary support and fixation to the counterweight, with good fixing effect. The sleeve body of the threaded sleeve is inserted into the fixing hole, which can buffer part of the impact force generated by the shaking of the counterweight during the construction of the excavator, making the counterweight less likely to loosen and more stable, with good safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the utility model and constitute a part of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0015] Figure 1 It is a structural schematic diagram of a counterweight installation assembly for a mining type hydraulic excavator of the utility model;

[0016] Figure 2 It is a side view of a counterweight installation assembly for a mining hydraulic excavator of the utility model;

[0017] Figure 3 It is a structural schematic diagram of a threaded sleeve in a counterweight installation assembly for a mining hydraulic excavator of the utility model;

[0018] Figure 4 The utility model is a structural schematic diagram of a counterweight in a counterweight installation assembly for a mining type hydraulic excavator.

[0019] Description of reference numerals:

[0020] 1-vertical plate, 2-threaded sleeve, 21-sleeve body, 22-fixed section, 23-fixed surface, 3-pad, 100-hydraulic excavator, 200-counterweight, 201-connecting hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 4 As shown, in the counterweight installation assembly for a mining hydraulic excavator of the utility model, the hydraulic excavator 100 is connected to the counterweight 200 through the counterweight installation assembly, and the counterweight installation assembly for the mining hydraulic excavator includes a vertical plate 1 connected to the hydraulic excavator 100, a plurality of threaded sleeves 2 and a plurality of pads 3 connected to the vertical plate 1 away from the hydraulic excavator 100, wherein a plurality of fixing holes are symmetrically opened on the vertical plate 1 along the center line of the vertical direction, and the plurality of pads 3 are symmetrically distributed along the center line of the vertical direction. Of course, the pads 3 and the fixing holes are arranged on the vertical plate 1. The distribution position on the vertical plate 1 should be set according to actual use requirements, and the pad 3 is set at the bottom of the counterweight 200; the threaded sleeve 2 includes a sleeve body 21 and a fixed section 22 connected to one end of the sleeve body 21. The outer diameter of the sleeve body 21 matches the inner diameter of the fixing hole. The sleeve body 21 is sleeved in the fixing hole. The outer periphery of the fixed section 22 is transitionally connected to the outer periphery of the sleeve body 21 with a fixed surface 23. The fixed surface 23 is fixed to the side of the vertical plate 1 away from the hydraulic excavator 100. The side of the counterweight 200 is connected to the vertical plate 1 through the threaded sleeve 2, and the threaded sleeve 2 and the vertical plate 1 are connected by fasteners.

[0023] As a specific embodiment, in the counterweight installation assembly for a mining-type hydraulic excavator of the utility model, a slot is provided on the side of the counterweight 200 close to the vertical plate 1, and the slot matches the pad 3. When the counterweight 200 is fixed, the pad 3 can be inserted into the slot, thereby playing a supporting role of the pad 3 on the slot.

[0024] As a specific implementation, in the counterweight installation assembly for a mining-type hydraulic excavator of the utility model, the fixing surface 23 is fixed to one end of the vertical plate 1 by welding. Of course, the fixing surface 23 can also be fixed to one end of the vertical plate 1 by other fixing methods such as threaded connection and riveting, as long as the fixing effect of the threaded sleeve 2 is met.

[0025] As a specific implementation, in the counterweight installation assembly for a mining-type hydraulic excavator of the utility model, the pad 3 is fixed to one end of the vertical plate 1 by welding. Of course, the pad 3 can also be fixed to one end of the vertical plate 1 by other fixing methods such as threaded connection and riveting, as long as the fixing effect of the pad 3 is met.

[0026] As a specific implementation, in the counterweight installation assembly for a mining-type hydraulic excavator of the utility model, the number of threaded sleeves 2 is 2 to 10, more specifically, the number of threaded sleeves 2 is 6. Of course, the specific number of threaded sleeves 2 needs to be set according to the actual use conditions such as the weight of the counterweight 200.

[0027] As a specific implementation, in the counterweight installation assembly for a mining-type hydraulic excavator of the utility model, the number of pads 3 is 2 to 6, more specifically, the number of pads 3 is 2. Of course, the specific number of pads 3 needs to be set according to the actual use conditions such as the weight of the counterweight 200.

[0028] The working principle of the counterweight installation assembly for a mining hydraulic excavator of the utility model is as follows: first, the counterweight 200 is placed on the top of the pad 3, the threaded sleeve 2 is aligned with the corresponding connecting hole 201 on the counterweight 200, and the counterweight 200 is fixed to the threaded sleeve 2 by fasteners to complete the installation and fixation of the counterweight 200.

[0029] In summary, compared with the prior art, the counterweight installation assembly for a mining hydraulic excavator of the utility model has the following advantages and beneficial effects:

[0030] This component has a simple structure and is easy to assemble and disassemble. After the counterweight 200 is fixed, the threaded sleeve 2 supports and fixes the counterweight 200, and the pad 3 provides secondary support and fixation to the counterweight 200, with a good fixing effect. The sleeve body 21 of the threaded sleeve 2 is inserted into the fixing hole, which can buffer part of the impact force generated by the shaking of the counterweight 200 during the construction of the excavator, so that the fixation of the counterweight 200 is not easy to loosen, is more stable, and has good safety.

[0031] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper", "lower" and the like in this article are all referenced to the placement state shown in the accompanying drawings.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A counterweight mounting assembly for a mining hydraulic excavator, wherein the hydraulic excavator is connected to a counterweight via the counterweight mounting assembly, characterized in that: The counterweight installation assembly for a mining hydraulic excavator comprises a vertical plate connected to the hydraulic excavator, a plurality of threaded sleeves and a plurality of pads connected to a side of the vertical plate away from the hydraulic excavator, wherein: The vertical plate is provided with a plurality of fixing holes symmetrically arranged along the vertical center line, the plurality of pads are symmetrically distributed along the vertical center line, and the pads are arranged at the bottom of the counterweight; The threaded sleeve includes a sleeve body and a fixed section connected to one end of the sleeve body. The outer diameter of the sleeve body matches the inner diameter of the fixing hole. The sleeve body is sleeved in the fixing hole. The outer periphery of the fixed section and the outer periphery of the sleeve body are transitionally connected with a fixing surface. The fixing surface is fixed to the side of the vertical plate away from the hydraulic excavator. The side of the counterweight is connected to the vertical plate through the threaded sleeve. The threaded sleeve and the vertical plate are connected by fasteners.

2. The counterweight installation assembly for a mining hydraulic excavator according to claim 1, characterized in that: The fixing surface is fixed to one end of the vertical plate by welding.

3. The counterweight installation assembly for a mining hydraulic excavator according to claim 1, characterized in that: The pad is fixed to one end of the vertical plate by welding.

4. The counterweight installation assembly for a mining hydraulic excavator according to claim 1, characterized in that: The number of the threaded sleeves is 2 to 10.

5. The counterweight installation assembly for a mining hydraulic excavator according to claim 1, characterized in that: The number of the pads is 2 to 6.

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