CN220378313U - Pushing device for retracting working face shielding frame - Google Patents
Pushing device for retracting working face shielding frame Download PDFInfo
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- CN220378313U CN220378313U CN202321699701.XU CN202321699701U CN220378313U CN 220378313 U CN220378313 U CN 220378313U CN 202321699701 U CN202321699701 U CN 202321699701U CN 220378313 U CN220378313 U CN 220378313U
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- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 244000208734 Pisonia aculeata Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000000959 ear middle Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a pushing device of a retractable working face mask frame, which comprises a panel, ear plates, a cross beam and side plates, wherein the panel, the cross beam and the side plates form a cuboid structure, a plurality of ear plates are arranged in the cuboid structure in parallel, and the ear plates are parallel to the cross beam. According to the utility model, three hydraulic supports can be connected in parallel, the hydraulic pushing jacks of the hydraulic supports are matched with each other, the action mode of the push-pull rod is synthesized, the dynamic and timely stepping forward movement of the support of the three shield supports is realized, and the heel support maintenance can be performed after the support is retracted.
Description
Technical Field
The utility model belongs to the technical field of support retraction in coal mining, and particularly relates to a pushing device for retracting a working face shielding frame.
Background
At present, the hydraulic support of the fully mechanized mining face is retracted by using three shield frames to support the old pond area of the retraction channel, but the technology of advancing the shield frames is a mode of firstly pulling out the retraction frames and then respectively and gradually pulling the shield frames to advance by using a winch. The winch is utilized to carry out traction for many times, and the phenomena of no opposite traction, long rope path and overlarge impact force of a floating rope exist seriously, and the traction can only be carried out by strong pulling and hard dragging, so that the phenomena of connecting piece breakage and steel wire rope breakage injury are easily caused. Because the traction is not opposite and the offset dislocation of the three mask frames is usually caused, the three mask frames must be respectively adjusted by using single hydraulic prop, and the mode is labor-and time-consuming. The winch is used for pulling the three shield frames, the situation that when the withdrawing frames withdraw from and pull in place, the hook heads are pulled back manually to pull the three shield frames one by one, the parallel operation cannot be performed intermittently, the time is long, the work flow takes a long time, the frame pulling maintenance cannot be performed on the empty roof area in time in the period of time, and great potential safety hazards exist. The hydraulic support removes the complex process of middle support, forward movement, multi-step and multi-person coordination and cooperation operation, the construction flow is complex, the working efficiency is low, and the safety coefficient is small.
Disclosure of Invention
In order to solve the problems, the utility model provides a pushing device for retracting a working face shielding frame, which is used for connecting three hydraulic supports in parallel, realizing the dynamic and timely stepping forward movement of three shielding support supports by utilizing the mutual matching of hydraulic pushing jacks of the hydraulic supports and combining the action mode of a push-pull rod, and being capable of timely maintaining a heel frame after the support is retracted.
The utility model adopts the technical scheme that: the utility model provides a pusher jack of withdrawing working face mask frame, includes panel, otic placode, crossbeam and curb plate, panel, crossbeam and curb plate constitute the cuboid structure, a plurality of the otic placode parallel arrangement is in the cuboid structure, the otic placode is on a parallel with the crossbeam.
Further, the otic placode is flaky cuboid structure, the both sides of otic placode are equipped with two circular traction holes.
Furthermore, tenons are arranged on the upper side and the lower side of the lug plate and are used for being inserted into mortise holes in the panel.
The utility model has the beneficial effects that:
1. solves the problems that the manual pull-back of the hook head pulls three mask frames one by one, can not work in parallel, is performed intermittently, has long time and low efficiency.
2. The time of the empty top after the working face retracting frame is retracted is reduced, and the working safety of underground workers is ensured.
3. The operation flow is simplified, the labor intensity of operators as a stress point due to the anchor is reduced, and a large amount of manpower and material resources are saved.
Drawings
FIG. 1 is a schematic diagram of the front structure of the present utility model;
FIG. 2 is a schematic side view of the present utility model;
FIG. 3 is a schematic top view of the present utility model;
fig. 4 is a schematic view of the structure of a middle ear plate of the present utility model;
in the figure: 1-crossbeam, 2-otic placode, 3-panel, 4-curb plate, 5-traction hole, 6-tenon, 7-mortise.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the utility model relates to a pushing device of a retractable working face mask frame, which comprises a panel 3, a beam 1, side plates 4 and ear plates 2, wherein the panel 3, the beam 1 and the side plates 4 form a cuboid structure, three groups of ear plates 2 are respectively arranged at the front part, the middle part and the rear part of the cuboid structure, four ear plates 2 are arranged in parallel, and the four ear plates are all arranged parallel to the beam 1. In order to facilitate the connection of the ear plate 2 on the panel 1, the panel 1 is provided with a strip-shaped mortise hole 7 for fixing the ear plate, and the upper side and the lower side of the ear plate are provided with tenons 6 corresponding to the mortise hole 7. The ear plate 2 is of a flaky cuboid structure, and two round traction holes 5 are formed in the left side and the right side of the ear plate 2. After the above-mentioned components are connected, they are further fixed by welding. According to the utility model, the push-pull rod of the shield support can be connected with the ear plate through the pin shaft, and the single shield support can be moved forward through pushing the jack. The top and bottom plates of the channel are retracted to be beneficial, and three shield frames can be moved forwards in groups by utilizing a winch.
The pushing device for the shelter frame of the retractable working face is developed and used, so that the retracting speed of the support, the supporting efficiency and the construction safety are effectively improved, and the pushing device has extremely strong advancement, practical value and wide popularization and use value.
The pushing device is only a preferred embodiment matched with the mine hydraulic support, and is not limited to the concept and the protection scope of the utility model, and various modifications and improvements of the technical scheme of the utility model by the person skilled in the art should fall into the protection scope of the utility model without departing from the design concept of the utility model.
Claims (3)
1. The utility model provides a push away device of withdrawing working face mask frame which characterized in that: the novel ear plate comprises a panel, ear plates, a cross beam and side plates, wherein the panel, the cross beam and the side plates form a cuboid structure, a plurality of ear plates are arranged in the cuboid structure in parallel, and the ear plates are parallel to the cross beam.
2. A pusher assembly for retracting a working surface shielding cage according to claim 1, wherein: the otic placode is flaky cuboid structure, the both sides of otic placode are equipped with two circular traction holes.
3. A pusher assembly for retracting a working surface shielding cage according to claim 1, wherein: tenons are arranged on the upper side and the lower side of the lug plate and are used for being inserted into mortise holes in the panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321699701.XU CN220378313U (en) | 2023-06-30 | 2023-06-30 | Pushing device for retracting working face shielding frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321699701.XU CN220378313U (en) | 2023-06-30 | 2023-06-30 | Pushing device for retracting working face shielding frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220378313U true CN220378313U (en) | 2024-01-23 |
Family
ID=89565976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321699701.XU Active CN220378313U (en) | 2023-06-30 | 2023-06-30 | Pushing device for retracting working face shielding frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220378313U (en) |
-
2023
- 2023-06-30 CN CN202321699701.XU patent/CN220378313U/en active Active
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