CN211549734U - Fully-mechanized mining working face roadway advance support hydraulic support - Google Patents
Fully-mechanized mining working face roadway advance support hydraulic support Download PDFInfo
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- CN211549734U CN211549734U CN201922385650.3U CN201922385650U CN211549734U CN 211549734 U CN211549734 U CN 211549734U CN 201922385650 U CN201922385650 U CN 201922385650U CN 211549734 U CN211549734 U CN 211549734U
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Abstract
The utility model belongs to the technical field of colliery support equipment, a combine and adopt working face tunnel advance support hydraulic support is disclosed, including a plurality of support groups, support group includes two support lists and the cross oil cylinder that is used for connecting two support lists, support list includes back timber, sloping, back connecting rod, front beam hydro-cylinder, base and two stands, back timber and base are connected through two stands, the one end of sloping is articulated with the back timber, and the other end articulates with the one end of back connecting rod and front connecting rod respectively, the other end of back connecting rod and front connecting rod articulates with the base respectively, the one end of front beam articulates with the front end of back timber, and the other end passes through the front beam hydro-cylinder and is connected with the front beam; the adjacent support groups are connected through a pushing oil cylinder. The device has a self-moving function, can greatly reduce the labor capacity of workers, is simple and convenient to operate, high in safety and strong in adaptability, and can be widely applied to the field of coal mine support.
Description
Technical Field
The utility model belongs to the technical field of belong to the colliery support equipment, concretely relates to can be used for the stoping fast, tunnel section size is big, roof pressure is big combine to adopt working face tunnel advance support hydraulic support that combines of working face tunnel.
Background
At present, the roadway of the fully mechanized mining face with more than half of the large mining height in China also uses a single column support technology with a backward technology, and the support technology mainly has the following problems:
firstly, the support height is limited, and the adaptability of the large-section roadway is poor. The maximum support height of the DW 45-250/110X type single column used at present is 4.5m, the weight is 103kg, the weight of the single column with the support height exceeding 4.5m is heavier, the operation is more inconvenient, and the use requirement of a large-section roadway cannot be met.
Secondly, the supporting force is small, the supporting area is small, and the bottom-to-bottom specific pressure is large. The single column has small working resistance and cannot meet the requirement of a roadway with large pressure of a top plate; the contact area of the single column with the top plate and the bottom plate is small, and the use of a soft rock bottom plate roadway cannot be met.
And the labor capacity of workers is large. The single column has no self-moving function, when the mining speed of a working face is high, columns need to be frequently removed, moved and supported, the process is complicated, the labor intensity of workers is high, and the working efficiency is low.
High production cost. When the roadway height is higher than 4.5m, the top of the wood pile needs to be hooked, and the wood waste is serious.
Great potential safety hazard. Frequent column removing, column moving, column supporting and wood piling, small operation space for workers, sometimes empty top operation and great potential safety hazard.
Therefore, the advanced support hydraulic support for the self-moving large-mining-height fully-mechanized mining face roadway is researched, the problems can be effectively solved, the support efficiency can be improved, and the underground safe, stable and efficient operation is guaranteed, so that the production cost can be saved, the labor is reduced, the efficiency is improved, the economic benefit of a mine is improved, and the advanced support hydraulic support has very important significance for the safe and efficient production of a coal mine.
SUMMERY OF THE UTILITY MODEL
In order to solve the deficiencies that the monomer post support technology exists in the prior art, the utility model provides a combine and adopt working face tunnel advance support hydraulic support.
In order to solve the technical problem, the utility model discloses a technical scheme be: the hydraulic support for the advanced support of the roadway of the fully mechanized mining face is characterized by comprising a plurality of support groups, wherein each support group comprises two support single frames and a cross oil cylinder for connecting the two support single frames, each support single frame comprises a top beam, an oblique beam, a rear connecting rod, a front beam oil cylinder, a base and two stand columns, the top beam and the base are connected through the two stand columns, one end of the oblique beam is hinged with the top beam, the other end of the oblique beam is hinged with one end of the rear connecting rod and one end of the front connecting rod respectively, the other ends of the rear connecting rod and the front connecting rod are hinged with the base respectively, one end of the front beam is hinged with the front end of the top beam, and the other end of the front; the adjacent support groups are connected through a pushing oil cylinder.
In the support group, the cross oil cylinders comprise two upper cross oil cylinders used for connecting top beams of two supporting single frames and two lower cross oil cylinders used for connecting bases of the two supporting single frames.
Two pushing oil cylinders are arranged between the adjacent support groups, and two ends of each pushing oil cylinder are respectively connected with the base of the supporting single frame positioned on the same side.
The number of the bracket sets is 3.
The upright column is a two-stage telescopic upright column controlled by hydraulic pressure.
The support group also comprises a valve group arranged on the base.
Compared with the prior art, the utility model following beneficial effect has: the utility model provides a combine and adopt working face tunnel advance support hydraulic support has that to strut highly high, the supporting force is big, the supporting area is big, to the end specific pressure little, have from moving function, easy and simple to handle, the security is high and outstanding advantage such as strong adaptability, a series of problems that the process exists are strutted to solution monomer post that can be fine.
Drawings
Fig. 1 is a schematic structural view of a fully mechanized mining face roadway advance support hydraulic support provided by an embodiment of the utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic structural view of a single frame;
FIG. 4 is a cross-sectional view of FIG. 3;
in the figure: the device comprises a supporting single-frame set 1, a pushing oil cylinder 2, a valve set 3, a rubber tube 4, an upper cross oil cylinder 5, a top beam 6, an oblique beam 7, a rear connecting rod 8, a front connecting rod 9, a front beam oil cylinder 10, a front beam 11, a base 12, a stand column 13 and a lower cross oil cylinder 14.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-4, the embodiment of the utility model provides a combine and adopt working face tunnel advance support hydraulic support, including three support list frame group 1, support list frame group 1 including two support list frames and be used for connecting the cross-linked oil cylinder of two support list frames. Among the three stent groups 1, the foremost stent group is called the first stent group, the middle stent group is called the second stent group, and the rearmost stent group is called the third stent group. The single support frame is a two-column support shield type frame and comprises a top beam 6, an oblique beam 7, a rear connecting rod 8, a front connecting rod 9, a front beam 11, a front beam oil cylinder 10, a base 12 and two upright columns 13, wherein the top beam 6 and the base 12 are connected through the two upright columns 13, one end of the oblique beam 7 is hinged with the top beam 6, the other end of the oblique beam 7 is hinged with one ends of the rear connecting rod 8 and the front connecting rod 9 respectively, the other ends of the rear connecting rod 8 and the front connecting rod 9 are hinged with the base 12 respectively, one end of the front beam 11 is hinged with the front end of the top beam 6, and the other end of the front beam 11 is connected with the front beam 11; the adjacent support groups 1 are connected through a pushing cylinder 2.
Specifically, in the present embodiment, as shown in fig. 4, in the bracket set 1, the transverse cylinders include two upper transverse cylinders 5 for connecting top beams 6 of two supporting frames and two lower transverse cylinders 14 for connecting bases 12 of the two supporting frames. Further, in this embodiment, two ends of the upper cross oil cylinder 5 are hinged to the top beam 6, and two ends of the lower cross oil cylinder 14 are hinged to the base 12, so that the support set can move forward left and right. In the embodiment, the structures of the three support groups are completely the same, and each support group consists of a left support single frame and a right support single frame which are respectively arranged on two sides of a roadway. The transverse oil cylinders are connected between the top beams and the bases of the left and right single support frames and are mutually supported to prevent falling, and the distance between the left and right parallel supports can be changed within a certain range through the extension and retraction of the transverse oil cylinders, so that the requirements of roadway side wall deformation and large part entering on a working face are met; the upper cross oil cylinder 5 is far enough away from the top plate of the roadway, so that the original anchor rod and anchor cable support of the roadway can be avoided well; the lower transverse oil cylinder 14 is spaced from the bottom plate of the roadway sufficiently to prevent interference with the bottom plate of the bottom heave roadway; the two sides of the top beam 1 are not provided with side turning plates, so that the original anchor rod and anchor cable support of the roadway is prevented from being damaged.
Specifically, in this embodiment, the number of the pushing cylinders 2 is 6, two pushing cylinders 2 are disposed between adjacent support groups 1, and two ends of each pushing cylinder 2 are respectively connected to the base 12 of the supporting single frame located on the same side.
Specifically, in this embodiment, the number of the support sets 1 may be not only 3, but also set as required.
Specifically, in this embodiment, the column 13 is a hydraulically controlled secondary telescopic column, and the structure of the secondary telescopic column can ensure that the height of the support reaches the supporting requirement.
Specifically, as shown in fig. 1, the support group 1 further includes a valve group 3 disposed on the base 12, the valve group 4 is connected to each oil cylinder in the support of this embodiment through a rubber tube 4, and each base 12 is provided with one valve group, which requires 6 valve groups in total.
The placing direction of the advance support hydraulic support is opposite to the advancing direction of the working face hydraulic support during working so as to prevent the advance support hydraulic support from being damaged when the coal cutter cuts coal.
The traveling mode of the forepoling hydraulic support is as follows: with the forward movement of the working face, the first support group retracts the front beam, the frame is lowered by 200-400 mm, the pushing oil cylinder 2 between the first support group and the second support group extends out by a step distance, then the first support group ascends through the upright column 13, the frame is lifted to reach the initial supporting force, then the front beam is unfolded through the front beam oil cylinder 10, and the movement of the first support group is completed. The second support group and the third support group respectively repeat the action of the first support group to finish walking by one step. When the condition of the roadway roof is poor, the hydraulic advance support of the embodiment can also advance left and right in a stepping mode, namely, the left side support single frame is lowered through the left side upright column, then the left side support single frame is lifted after extending forwards by a step distance through the left side pushing oil cylinder, then the right side support single frame is lowered, and then the right side support single frame is lifted after extending forwards by a step distance through the right side pushing oil cylinder, namely, the left side support single frame and the right side support single frame advance in a stepping mode. In this embodiment, the working fluid of the hydraulic support for forepoling is led out from the head-row support of the tail working face.
The utility model provides a combine and adopt working face tunnel advance support hydraulic support has outstanding advantages such as from moving function, easy and simple to handle, security height and strong adaptability, moreover, the stable in structure of support, and the size is adjustable, has and strut highly high, support power big, support that the area is big, to the end than press advantage such as little, a series of problems that the process exists are strutted to solution monomer post that can be fine.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. A fully mechanized coal mining face roadway advance support hydraulic support is characterized by comprising a plurality of support groups (1), the support group (1) comprises two supporting single frames and a cross oil cylinder for connecting the two supporting single frames, the single support frame comprises a top beam (6), an oblique beam (7), a rear connecting rod (8), a front connecting rod (9), a front beam (11), a front beam oil cylinder (10), a base (12) and two upright columns (13), the top beam (6) and the base (12) are connected through two upright posts (13), one end of the oblique beam (7) is hinged with the top beam (6), the other end is respectively hinged with one end of the rear connecting rod (8) and one end of the front connecting rod (9), the other ends of the rear connecting rod (8) and the front connecting rod (9) are respectively hinged with the base (12), one end of the front beam (11) is hinged with the front end of the top beam (6), and the other end of the front beam (11) is connected with the front beam (11) through a front beam oil cylinder (10); the adjacent support groups (1) are connected through a pushing oil cylinder (2).
2. The hydraulic support for the roadway advance support of the fully mechanized mining face according to claim 1, characterized in that in the support group (1), the cross oil cylinders comprise two upper cross oil cylinders (5) for connecting top beams (6) of two support single frames and two lower cross oil cylinders (14) for connecting bases (12) of the two support single frames.
3. The fully mechanized mining face roadway advance support hydraulic support according to claim 1, characterized in that two pushing cylinders (2) are arranged between adjacent support groups (1), and two ends of the pushing cylinders (2) are respectively connected with the base (12) of the support single frame on the same side.
4. The fully mechanized mining face roadway advance support hydraulic support according to claim 1, wherein the number of the support groups (1) is 3.
5. The fully mechanized mining face roadway advance support hydraulic support according to claim 1, wherein the column (13) is a hydraulically controlled secondary telescopic column.
6. The fully mechanized mining face roadway advance support hydraulic support according to claim 1, wherein the support group (1) further comprises a valve group (3) disposed on the base (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922385650.3U CN211549734U (en) | 2019-12-26 | 2019-12-26 | Fully-mechanized mining working face roadway advance support hydraulic support |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922385650.3U CN211549734U (en) | 2019-12-26 | 2019-12-26 | Fully-mechanized mining working face roadway advance support hydraulic support |
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| CN211549734U true CN211549734U (en) | 2020-09-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339025A (en) * | 2021-06-04 | 2021-09-03 | 煤炭科学研究总院 | Hydraulic system and hydraulic support group |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339025A (en) * | 2021-06-04 | 2021-09-03 | 煤炭科学研究总院 | Hydraulic system and hydraulic support group |
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