A kind of rock lane comprehensive excavator can reduce the frequency of replacing boom section disc root base

Abstract

The utility model discloses a kind of disc root seat for rock roadway comprehensive excavator can reduce the frequency of replacing cantilever section, comprising: disc root seat body base body, disc root seat fixed disc, multiple fixing holes are set on the edge of disc root seat fixed disc, around its one week, each fixing hole is used to fixed bolt fixed cutting head and cantilever section;Abrasion strip is welded on the side wall of disc root seat fixed disc, multiple wear blocks are welded on the lower side wall of disc root seat fixed disc, the utility model is simple in structure, easy to transform, low in transformation cost, effectively solve the problem of frequent disassembly of cantilever section when cutting head is replaced.

Description

Technical Field

[0001] This utility model belongs to the field of rock tunnel boring machines, and particularly relates to a packing seat for rock tunnel boring machines that can reduce the frequency of cantilever section replacement. Background Technology

[0002] During rock tunnel excavation, the fixing bolts between the cutting head and the cantilever section of the roadheader are prone to wear due to the working face structure, making it impossible to remove and replace the cutting head. When the cutting head is damaged, the cantilever section must be replaced together. The disassembly, transportation, and replacement of large parts greatly increases the labor intensity of workers, reduces the safety factor for workers, and prolongs the downtime of equipment at the working face. Utility Model Content

[0003] The purpose of this invention is to provide a packing seat for a rock tunnel roadheader that can reduce the frequency of cantilever section replacement, in order to solve the problem that the fixing bolts between the roadheader's cutting head and the cantilever section are easily worn, making it impossible to remove and replace the cutting head.

[0004] This utility model adopts the following technical solution: a packing seat for a rock tunnel boring machine that can reduce the frequency of cantilever section replacement, comprising: The base of the packing system is a hollow cylinder; The packing seat fixing disc is coaxially arranged with the packing seat base and integrally connected; Multiple fixing holes are provided around the edge of the packing seat fixing disc, and each fixing hole is used to fix the cutting head and cantilever section with fixing bolts. Wear-resistant strips are welded to the side wall of the packing seat fixing disc. The wear-resistant strips are used to increase the outline radius of the packing seat fixing disc, so that when wear occurs in the horizontal direction, the wear-resistant strips will wear first, thereby preventing the fixing bolts in the fixing holes from being worn in the horizontal direction. Multiple wear-resistant blocks are welded to the lower side wall of the fixed disc of the packing seat. These wear-resistant blocks are used to wear down first when wear occurs in the vertical direction, thereby preventing the fixing bolts in the fixing holes from being worn down in the vertical direction. This ensures that when the cutting head is severely worn, the fixing bolts of the fixed cutting head and the cantilever section remain intact, and the cutting head can be easily disassembled and replaced.

[0005] The beneficial effects of this utility model are: This utility model has a simple structure, is easy to modify, and has low modification cost, effectively solving the problem of frequent disassembly of the cantilever section when replacing the cutting head; This invention increases the radius of the root base fixing disc by setting wear-resistant strips, so that when wear occurs in the horizontal direction, the wear-resistant strips are worn first, and the fixing bolts in the fixing holes are prevented from being worn in the horizontal direction. This invention incorporates wear-resistant blocks, which wear down first when wear occurs in the vertical direction, thus preventing the fixing bolts in the fixing holes from being worn down in the vertical direction. Consequently, when the cutting head is severely worn, the fixing bolts that fix the cutting head and the cantilever section remain intact, making it easy to disassemble and replace the cutting head. Attached Figure Description

[0006] Figure 1 This is a side view of the present invention; Figure 2 This is a bottom view of the present invention.

[0007] Among them: 10, packing seat base; 11, packing seat fixing disc; 12, fixing hole; 13, wear-resistant strip; 14, wear-resistant block. Detailed Implementation

[0008] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0009] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more. The term "orientation" in this utility model refers to the orientation of the utility model within the... Figure 1 Description of the state's progression.

[0010] This utility model discloses a packing seat for a rock tunnel boring machine that can reduce the frequency of cantilever section replacement, such as... Figure 1 and Figure 2 As shown, it includes: packing base body 10 and packing base fixing disc 11.

[0011] The base 10 of the packing seat is a hollow cylinder.

[0012] The packing seat fixing disc 11 is coaxially arranged with the packing seat base 10 and integrally connected.

[0013] Multiple fixing holes 12 are provided around the edge of the packing seat fixing disc 11, and each fixing hole 12 is used to fix the cutting head and cantilever section with fixing bolts.

[0014] Wear-resistant strips 13 are welded to the side wall of the packing seat fixing disc 11. The wear-resistant strips 13 are used to increase the contour radius of the packing seat fixing disc 11, so that when wear occurs in the horizontal direction, the wear-resistant strips 13 will wear first, thereby preventing the fixing bolts in the fixing holes 12 from being worn in the horizontal direction.

[0015] Multiple wear-resistant blocks 14 are welded to the lower side wall of the packing seat fixing disc 11. The multiple wear-resistant blocks 14 are used to wear down first when wear occurs in the vertical direction, thereby preventing the fixing bolts in the fixing hole 12 from being worn in the vertical direction. This ensures that when the cutting head is severely worn, the fixing bolts of the fixing cutting head and the cantilever section are intact and the cutting head can be easily disassembled and replaced.

[0016] Each wear-resistant block 14 is evenly arranged around the lower edge of the fixed disc 11 of the disc root seat.

[0017] Each wear-resistant block 14 is welded to the lower side of the packing seat fixing disc 11, at the position between two adjacent fixing holes 12.

[0018] In one embodiment, two wear-resistant strips 13 are provided, and they are arranged to be cross-wound around the side wall of the packing seat fixing disc 11.

[0019] In another embodiment, multiple wear-resistant strips 13 are provided and are evenly spaced around the side wall of the packing seat fixing disk 11, with the direction of each wear-resistant strip 13 being parallel to the axis of the packing seat fixing disk 11. Example

[0020] During the tunneling process, the cantilever section, cutting head, and packing seat of a certain mine extend into the rock tunnel, resulting in severe wear. Often, when the cutting head is damaged, the cantilever section must be replaced as well. The disassembly, transportation, and replacement of large parts greatly increases the labor intensity of the workers, reduces the safety factor of the workers, and prolongs the downtime of the equipment at the working face.

[0021] This utility model improves upon the existing packing seat by adding wear-resistant blocks and strips to the bottom and sides of the packing seat, which significantly reduces the wear of the tunneling machine's blasting head screws and effectively increases the service life of the cutting head.

[0022] Since using the packing seat of this utility model, the service life of the cantilever section has been greatly increased. Previously, the cutting head and cantilever section had to be replaced on average every 1.5 months, but now the cutting head has to be replaced on average every 6 or 7 months. Moreover, the cantilever section does not need to be disassembled or transported, which greatly reduces equipment downtime and lowers production costs.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A packing seat for a rock tunnel boring machine that reduces the frequency of cantilever section replacement, characterized in that, include: The base of the packing seat (10) is a hollow cylinder; The packing seat fixing disc (11) is coaxially arranged and integrally connected with the packing seat body base (10); Multiple fixing holes (12) are provided around the edge of the packing seat fixing disc (11), and each fixing hole (12) is used to fix the cutting head and cantilever section with fixing bolts; Wear-resistant strips (13) are welded on the side wall of the packing seat fixing disc (11). The wear-resistant strips (13) are used to increase the contour radius of the packing seat fixing disc (11), so that when wear occurs in the horizontal direction, the wear-resistant strips (13) will wear first, thereby preventing the fixing bolts in the fixing holes (12) from being worn in the horizontal direction. Multiple wear-resistant blocks (14) are welded on the lower side wall of the fixed disc (11) of the packing seat. The multiple wear-resistant blocks (14) are used to wear the wear-resistant blocks (14) first when wear occurs in the vertical direction, thereby avoiding the fixing bolts in the fixing hole (12) from being worn in the vertical direction; thus ensuring that when the cutting head is severely worn, the fixing bolts of the fixing cutting head and the cantilever section are intact and easy to disassemble and replace the cutting head.

2. The packing seat for a rock tunnel boring machine that reduces the frequency of cantilever section replacement according to claim 1, characterized in that, Each wear-resistant block (14) is evenly arranged around the lower edge of the fixed disc (11) at the root seat.

3. A packing seat for a rock tunnel boring machine that reduces the frequency of cantilever section replacement, as described in claim 1, is characterized in that... Each of the wear-resistant blocks (14) is welded to the lower side of the packing seat fixing disc (11), at the position between two adjacent fixing holes (12).

4. A packing seat for a rock tunnel boring machine that reduces the frequency of cantilever section replacement according to claim 1, characterized in that, The wear-resistant strip (13) is provided in two parts, and is arranged to be cross-wound around the side wall of the fixed disc (11) of the packing seat.

5. A packing seat for a rock tunnel boring machine that reduces the frequency of cantilever section replacement according to claim 1, characterized in that, Multiple wear-resistant strips (13) are provided and are evenly spaced around the side wall of the packing seat fixing disc (11). The direction of each wear-resistant strip (13) is parallel to the axis of the packing seat fixing disc (11).

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