Roof anchor net dismantling structural member

Abstract

A top plate anchor net dismantling structural part comprises a shell sleeve, and the assembling shell sleeve is of a rectangular frame structure and comprises a top plate, a bottom plate and two side plates which are connected in sequence. The length and the width of the interior of the shell sleeve correspond to the length and the width of the edge of a top plate of the end frame, the cutting knives are fixedly arranged on the shell sleeve, the arrangement direction of the cutting knives is perpendicular to the shell sleeve, the multiple cutting knives are evenly arranged in an array mode, the cutting knives located in the middle of the shell sleeve are the longest, and the cutting knives on the two sides are gradually decreased and shortened. The problems that in the prior art, a suspended roof is prone to being retained too long and needs to be manually cleaned are solved, the equipment and an end frame are organically integrated, a steel belt and a woven net are cut off in the moving and lifting process of the end frame, an end top plate naturally collapses under the pressure effect of the top plate after entering a goaf, manpower is saved, meanwhile, efficiency is higher, and the working efficiency is improved. And the safety popularization value is higher.

Description

Technical Field

[0001] The utility model relates to a field, in particular to a top plate anchor net removal structural member. Background Art

[0002] After the coal mine fully mechanized mining face is mined, in order to prevent the overhang distance between the head and tail of the machine from being too long, the roof after the two chute enters the face often adopts measures such as artificial withdrawal of anchor nets to ensure the normal collapse of the roof. However, these measures not only have problems such as high labor intensity and occupy a large amount of maintenance and production time, but also cannot guarantee the collapse effect of the roof, and occasionally the overhang distance will be too long. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a roof anchor net removal structure for the shortcomings of manual anchor withdrawal. Through equipment modification, the end frame is used to cut off the steel belt and the mesh during the migration and lifting process, thereby destroying the roof support and the integrity of the end roof, so that the end roof enters the goaf and naturally collapses under the action of the roof pressure.

[0004] The equipment includes a shell sleeve, and the assembly shell sleeve is a rectangular frame structure, including a top plate, a bottom plate and two side plates connected in sequence; the inner length and width of the shell sleeve correspond to the length and width of the edge of the top plate of the end head frame, so that the shell sleeve is assembled on the top plate of the end head frame, and the inner surface of the shell sleeve fits with the outer surface of the top plate of the end head frame; the end head bracket mentioned here is the hydraulic end head bracket in the prior art.

[0005] A cutting knife is fixedly arranged on the shell sleeve. The setting direction of the cutting knife is perpendicular to the shell sleeve. The setting form is that a plurality of cutting knives are arranged in a uniform array, and the cutting knife located in the middle of the shell sleeve is the longest, and the cutting knives on both sides become shorter and shorter.

[0006] The effect achieved by this is that the cutting knife corresponds to the curvature of the top plate.

[0007] Furthermore, the cutting knife has a double-sided serrated edge.

[0008] The beneficial effect of the utility model is that the utility model solves the problem in the prior art that the suspended top is prone to stay for too long and requires manual cleaning. By utilizing the organic combination of the equipment and the end frame, the steel belt and the woven mesh are cut off during the migration and lifting process of the end frame, so that the end top plate enters the goaf and collapses naturally under the pressure of the top plate. While saving manpower, the efficiency is also higher and it has more safety promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the basic implementation form of a roof anchor net removal structure described in the utility model;

[0010] Figure 2 is a schematic structural diagram of Example 2;

[0011] Figure 3 It is a schematic structural diagram of a preferred implementation method of Example 3;

[0012] Reference numerals:

[0013] 1-shell 2-cutting knife 3-bolt 4-hydraulic cylinder 5-assembly plate 6-support member

[0014] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0015] Reference Figure 1 , Figure 2 and Figure 3 The utility model discloses a top plate anchor net removal structure, including a shell 1. The assembled shell 1 is a rectangular frame structure, including a top plate, a bottom plate and two side plates connected in sequence; the inner length and width of the shell 1 correspond to the length and width of the edge of the top plate of the end frame, so that the shell 1 is assembled on the top plate of the end frame, and the inner surface of the shell 1 fits with the outer surface of the top plate of the end frame; the end price mentioned here is the hydraulic end bracket in the prior art.

[0016] A cutting knife 2 is fixedly arranged on the shell 1. The cutting knife 2 is arranged in a direction perpendicular to the shell 1. A plurality of cutting knives 2 are arranged in a uniform array. The cutting knife 2 located in the middle of the shell 1 is the longest, and the cutting knives 2 on both sides become shorter.

[0017] The effect achieved in this way is that the cutting blade 2 corresponds to the curvature of the top plate.

[0018] Furthermore, the cutting knife 2 has a double-sided serrated edge.

[0019] Embodiment 1: The shell 1 is directly welded to the end frame by welding.

[0020] Embodiment 2: Refer to the attached drawings of the specification Figure 2 Screw holes are provided on both side plates of the shell 1, and the shell 1 is fixed to the front of the upper part of the end frame by means of the screw holes and the bolts 3 are used for hard limiting.

[0021] Embodiment 3: Refer to the attached drawings of the specification Figure 3 The shell 1 also includes a front baffle, and the shell 1 is connected to the end frame through a hydraulic cylinder 4.

[0022] Preferably, the upper part of the end frame is integrally provided with a mounting plate 5, and the hydraulic cylinder 4 is fixedly provided on the mounting plate 5, that is, the cylinder sleeve part of the hydraulic cylinder 4 is fixedly provided on the mounting plate 5; the piston part of the hydraulic cylinder 4 is fixedly provided on the inner surface of the front baffle of the shell 1;

[0023] A support member 6 is also provided between the shell 1 and the end frame. The support member 6 comprises a bent rod fixedly provided under the shell 1. A guide rail sleeve is sleeved on the bent rod. One end of the guide rail sleeve is fixedly provided on the end frame.

[0024] The effect achieved in this way is that the top plate anchor net can be actively cut by controlling the hydraulic cylinder 4.

[0025] When the utility model is in use, the end frame is used to cut the steel belt and the woven mesh during the migration and lifting process, thereby destroying the roof support and the integrity of the end top plate, so that the end top plate naturally collapses under the action of the top plate pressure after entering the goaf.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A roof anchor net removal structure, comprising a shell, the shell is a rectangular frame structure, including a top plate, a bottom plate and two side plates connected in sequence; the inner length and width of the shell corresponds to the length and width of the top plate edge of the end frame, characterized in that: A cutting knife is fixedly arranged on the shell sleeve. The setting direction of the cutting knife is perpendicular to the shell sleeve. The setting form is that a plurality of cutting knives are arranged in a uniform array, and the cutting knife located in the middle of the shell sleeve is the longest, and the cutting knives on both sides become shorter and shorter.

2. A roof anchor net removal structure according to claim 1, characterized in that: The cutting knife has a double-sided serrated edge.

3. A roof anchor net removal structure according to claim 1, characterized in that: The shell sleeve is directly welded to the end frame by welding.

4. A roof anchor net removal structure according to claim 1, characterized in that: Screw holes are provided on both side plates of the shell sleeve, and the shell sleeve is fixed to the front of the upper part of the end frame in the form of a hard limit of bolts through the screw holes.

5. The roof anchor net removal structure according to claim 1, characterized in that: The shell also includes a front baffle, and the shell is connected to the end frame through a hydraulic cylinder.

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