CN212428914U - Bearing linkage non-pressure air door - Google Patents
Bearing linkage non-pressure air door Download PDFInfo
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- CN212428914U CN212428914U CN202020247611.7U CN202020247611U CN212428914U CN 212428914 U CN212428914 U CN 212428914U CN 202020247611 U CN202020247611 U CN 202020247611U CN 212428914 U CN212428914 U CN 212428914U
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Abstract
The utility model discloses a bearing linkage non-pressure air door, belonging to the technical field of mining equipment, comprising a door frame, a wind door leaf and a heavy hammer; the method is characterized in that: sealing connection has two to open air door leaf in the door frame, and the door frame links together through last pivot and lower pivot with the air door leaf, installs deep groove ball bearing in the last pivot, installs thrust ball bearing, two in the lower pivot the air door leaf top is connected with linkage, and linkage includes restorer, positioning sprocket and chain, the beneficial effects of the utility model are that: the restorer realizes synchronous opening and closing of the split air door by matching a chain with a heavy hammer, the upper door pivot can bear the force in the axial direction and the radial direction, the lower door pivot can only bear the force in the axial direction, and the door leaf cannot droop and deform; the pedestrian door is arranged to be of a centrosymmetric rotating structure, so that the problem that the pedestrian door cannot be closed in time due to wind power or cannot be opened due to wind power and does not meet the safety requirements of mines is avoided.
Description
The technical field is as follows:
the utility model belongs to the technical field of mining equipment, more specifically relates to a bearing linkage non-pressure air door.
Background art:
at present, the ventilation volume needs to be increased continuously for many deep coal mine roadways in China, so that the front-back pressure difference of an air door between an air inlet roadway and an air return roadway is increased. Therefore, a non-pressure air door is mostly used between the connection lane between the coal mine return air lane and the main air inlet lane. That is, one air door is composed of two door leaves with equal area, a connecting transmission device is arranged between the two door leaves to connect the two door leaves, one of the door leaves is opened or closed, and the other door leaf is opened or closed in the opposite direction.
When the wind force of the roadway acts on the door leaf opened along the wind flow direction, the wind force is thrust, and when the wind force acts on the door leaf opened against the wind flow direction, the wind force is resistance, and the resistance is offset, so that the air door is light and labor-saving when opened. The key point is how to organically connect two door leaves which are synchronously opened and closed in different directions.
The patent number of this company application is 201620879423. X's national utility model patent discloses a non-pressure air door, adopts connecting rod transmission mode exactly, installs mechanical link mechanism both ends on the door leaf, links together two door leaves on the air door. The disadvantages are as follows: the volume is large, the lateral movement occupies large roadway space, the passing size of the air door is limited, the air door needs to be installed on site, and the installation and debugging difficulty is large.
The utility model has the following contents:
in order to solve the problems and overcome the defects of the prior art, the utility model provides a bearing linkage non-pressure air door;
the first technical problem to be solved is that: the non-pressure air door of the connecting rod is large in size, the lateral movement occupies a large roadway space, and the passing size of the air door is limited.
The second technical problem to be solved is that: the walking door can not be closed in time due to wind power or is difficult to open due to wind power, and does not meet the mine safety requirements;
the utility model provides a concrete technical scheme of above-mentioned technical problem does: the bearing linkage non-pressure air door is arranged in a paired open structure and comprises a door frame, an air door leaf and a heavy hammer; the method is characterized in that: the inside of the door frame is hermetically connected with two split air door leaves, the door frame and the air door leaves are connected together through an upper door pivot and a lower door pivot, a deep groove ball bearing is installed in the upper door pivot, a thrust ball bearing is installed in the lower door pivot,
a linkage device is connected above the two air door fans and comprises a restorer, a positioning chain wheel and a chain, the restorer comprises a cylindrical shell, two layers of independent chambers are arranged in the shell and comprise a chamber I and a chamber II,
a rotating shaft is arranged along the central axis of the shell, two ends of the rotating shaft are connected with the inner wall of the shell in a rotating connection mode, outlets are formed in the outer side of the cavity, a gear connected with a chain in a meshing mode is fixedly arranged on the rotating shaft positioned in the cavity I, a steel wire rope is connected with the rotating shaft positioned in the cavity II, and the steel wire rope is connected with a heavy hammer,
the positioning chain wheels comprise positioning chain wheels I and positioning chain wheels II, the positioning chain wheels I are symmetrically arranged on two sides of the central axis of the door frame, the positioning chain wheels II are arranged on the outer sides of the air door leaves, and the horizontal distance between the positioning chain wheels I and the positioning chain wheels II is not smaller than the width of the air door leaves; and a restorer is also arranged between the positioning chain wheel II and the air door fan on one side.
Furthermore, the air door fan comprises an air door leaf I and an air door leaf II,
the inboard of air door fan I be connected with the chain, the chain links to each other with II meshing of positioning sprocket I and positioning sprocket respectively to gear engagement through export and cavity I links to each other and is connected with the inboard of air door fan II, the outside of air door fan II is connected with the chain, the chain links to each other with II meshing of positioning sprocket I and the positioning sprocket that are located II outsides of air door fan respectively, and is connected with the outside of air door fan I.
Furthermore, a pedestrian door is mounted on the fan door leaf and is arranged to be in a centrosymmetric rotating structure.
Furthermore, the pedestrian door comprises a center shaft, pedestrian door leaves fixedly connected with the center shaft are symmetrically arranged on two sides of the center shaft, and a torsion spring is arranged at the joint of the center shaft and the pedestrian door leaves.
Further, the inner side of one side and the outer side of the other side of the air door leaf are in sealing fit with the air door leaf.
The utility model has the advantages that:
the restorer arranged in the device realizes synchronous opening and closing of the split air door by using the chain matched with the heavy hammer, does not occupy space and has good stability;
the upper hinge of the non-pressure air door is provided with a deep groove ball bearing, the lower hinge is provided with a thrust ball bearing, the upper hinge can bear the force in the axial direction and the radial direction, the lower hinge can only bear the force in the axial direction, the opening direction of the door leaf is positioned, and the door leaf cannot droop and deform;
the pedestrian door is arranged on the air door leaf and is arranged to be of a centrosymmetric rotating structure, so that the condition that the walking door cannot be closed in time due to wind power or cannot be opened due to wind power is avoided, and the safety requirement of a mine is not met.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the repositor of the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another embodiment of the present invention; in the drawings:
1. a door frame; 2. a fan door leaf I; 3. positioning a chain wheel I; 4. positioning a chain wheel II; 5. a chain; 6. a fan door leaf II; 7. a weight; 8. a repositor; 10. a wire rope; 11. a housing; 12. a gear; 13. a middle shaft; 14. a chamber I; 15. and a chamber II.
The specific implementation mode is as follows:
to further clarify the objects, aspects and advantages of the present invention, a more complete description of the invention will now be rendered by reference to the appended drawings, which are illustrated in fig. 1-4. In describing the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "rear", "lower left", "upper right", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model discloses a concrete implementation mode: the bearing linkage non-pressure air door is arranged in a paired open structure and comprises a door frame 1, an air door leaf and a heavy hammer 7; the method is characterized in that: the inside of the door frame 1 is hermetically connected with two split air door leaves, the door frame 1 and the air door leaves are connected together through an upper door pivot and a lower door pivot, a deep groove ball bearing is installed in the upper door pivot, a thrust ball bearing is installed in the lower door pivot,
a linkage device is connected above the two air door fans and comprises a restorer 8, a positioning chain wheel and a chain 5, the restorer 8 comprises a cylindrical shell 11, two layers of independent chambers are arranged in the shell 11 and comprise a chamber I14 and a chamber II 15,
a rotating shaft is arranged along the central axis of the shell 11, two ends of the rotating shaft are connected with the inner wall of the shell 11 in a rotating connection mode, outlets are arranged on the outer side of the cavity, a gear 12 connected with the chain 5 in a meshing mode is fixedly arranged on the rotating shaft positioned in the cavity I14, a steel wire rope 10 is connected with the rotating shaft positioned in the cavity II 15, a heavy hammer 7 is connected with the steel wire rope 10,
the positioning chain wheels comprise positioning chain wheels I3 and positioning chain wheels II 4, the positioning chain wheels I3 are symmetrically arranged on two sides of the central axis of the door frame 1, the positioning chain wheels II 4 are arranged on the outer sides of the air door leaves, and the horizontal distance between the positioning chain wheels I3 and the positioning chain wheels II 4 is not smaller than the width of the air door leaves; and a restorer 8 is also arranged between the positioning chain wheel II 4 and the air door fan on one side.
Furthermore, the air door fan comprises an air door leaf I2 and an air door leaf II 6,
air door fan I2's inboard be connected with chain 5, chain 5 links to each other with II 4 meshing of positioning sprocket I3 and positioning sprocket respectively to gear 12 meshing through export and cavity I14 links to each other and is connected with the inboard of air door fan II 6, the outside of air door fan II 6 is connected with chain 5, chain 5 links to each other with I3 and II 4 meshing of positioning sprocket that are located II 6 outsides of air door fan respectively, and is connected with the outside of air door fan I2.
Furthermore, a pedestrian door is mounted on the fan door leaf and is arranged to be in a centrosymmetric rotating structure.
Furthermore, the pedestrian door comprises a center shaft 13, pedestrian door leaves fixedly connected with the center shaft 13 are symmetrically arranged on two sides of the center shaft 13, and a torsion spring is arranged at the joint of the center shaft 13 and the pedestrian door leaves.
Further, the inner side of one side and the outer side of the other side of the air door leaf are in sealing fit with the air door leaf.
It should be noted that the utility model relates to a bearing linkage non-pressure air door, when in specific work,
1. a deep groove ball bearing is arranged in an upper hinge of a non-pressure air door, a thrust ball bearing is arranged in a lower hinge, a door leaf is opened through the rotation of the bearing, and the door leaf is opened very labor-saving; the upper hinge of the non-pressure air door with the structure can bear the force in the axial direction and the force in the radial direction, and the lower hinge can only bear the force in the axial direction, so that the opening direction of the door leaf is positioned, and the door leaf cannot droop and deform after being used for a long time;
2. when a vehicle enters, the air door leaf is pushed, because the air door leaf is composed of two door leaves with the same area, a linkage device is arranged between the two door leaves to connect the two door leaves, one of the door leaves is opened or closed, and the other door leaf is opened or closed in the opposite direction.
When the wind force of the roadway acts on the door leaf opened along the wind flow direction, the wind force is thrust, and when the wind force acts on the door leaf opened against the wind flow direction, the wind force is resistance, and the resistance is offset, so that the air door is light and labor-saving when opened.
When the wind door fan is used specifically, when the wind door fan I2 is pushed, the inner side of the wind door fan I2 drives the chain 5 to be pulled, the chain 5 is meshed with the positioning chain wheel I3 and the positioning chain wheel II 4 and is meshed and connected with the gear 12 of the cavity I14 through the outlet, so that the rotating shaft is driven to rotate, the rotating shaft rotates to drive the rotating shaft of the cavity II 15 to rotate, the steel wire rope 10 is wound, and the heavy hammer 7 is pulled up; at the moment, the chain 5 pulls the air door leaf II 6 to move, the synchronous opening of the air door leaf is realized, the door can be fixed through the pin shaft,
when the vehicle runs, the pin shaft is pulled out, the heavy hammer 7 descends due to gravity, and the air door leaf I2 and the air door leaf II 6 are pulled to reset at the same time;
when a person walks, the pedestrian door is pushed and comprises a center shaft 13, pedestrian door leaves fixedly connected with the center shaft 13 are symmetrically arranged on two sides of the center shaft 13, a torsion spring is arranged at the joint part of the center shaft 13 and the wind door leaves, at the moment, when the wind power of a roadway acts on the door leaves opened along the wind flow direction, the wind power is thrust, and when the wind power acts on the door leaves opened against the wind flow direction, the wind power is resistance and is offset, so that the air door is light and labor-saving when opened, and can be easily reset by the torsion spring.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A bearing linkage non-pressure air door is arranged in a paired open structure and comprises a door frame (1), an air door leaf and a heavy hammer (7); the method is characterized in that: the door frame (1) is internally and hermetically connected with two split air door leaves, the door frame (1) and the air door leaves are connected together through an upper door pivot and a lower door pivot, a deep groove ball bearing is installed in the upper door pivot, a thrust ball bearing is installed in the lower door pivot,
a linkage device is connected above the two air door fans and comprises a restorer (8), a positioning chain wheel and a chain (5), the restorer (8) comprises a cylindrical shell (11), two layers of independent chambers are arranged in the shell (11) and comprise a chamber I (14) and a chamber II (15),
a rotating shaft is arranged along the central axis of the shell (11), two ends of the rotating shaft are connected with the inner wall of the shell (11) in a rotating connection mode, outlets are formed in the outer sides of the chambers, a gear (12) connected with the chain (5) in a meshing mode is fixedly arranged on the rotating shaft positioned in the chamber I (14), a steel wire rope (10) is connected with the rotating shaft positioned in the chamber II (15), a heavy hammer (7) is connected with the steel wire rope (10),
the positioning chain wheels comprise positioning chain wheels I (3) and positioning chain wheels II (4), the positioning chain wheels I (3) are symmetrically arranged on two sides of the central axis of the door frame (1), the positioning chain wheels II (4) are arranged on the outer sides of the fan leaves, and the horizontal distance between the positioning chain wheels I (3) and the positioning chain wheels II (4) is not smaller than the width of the fan leaves; and a restorer (8) is also arranged between the positioning chain wheel II (4) and the air door fan on one side.
2. The bearing-linkage pressureless door of claim 1, wherein: the air door fan comprises an air door leaf I (2) and an air door leaf II (6),
the inboard of air door fan I (2) be connected with chain (5), chain (5) link to each other with location sprocket I (3) and location sprocket II (4) meshing respectively to gear (12) meshing through export and cavity I (14) links to each other and is connected with the inboard of air door fan II (6), the outside of air door fan II (6) is connected with chain (5), chain (5) link to each other with location sprocket I (3) and the meshing of location sprocket II (4) that are located the fan door fan II (6) outside respectively, and be connected with the outside of air door fan I (2).
3. The bearing-linkage pressureless door according to claim 1, wherein a pedestrian door is installed on the door leaf, and the pedestrian door is arranged in a centrosymmetric rotating structure.
4. The bearing-linkage non-pressure air door according to claim 3, wherein the pedestrian door comprises a central shaft (13), pedestrian door leaves fixedly connected with the central shaft (13) are symmetrically arranged on two sides of the central shaft (13), and a torsion spring is arranged at a joint of the central shaft (13) and the air door leaves.
5. The bearing-linked pressureless door according to claim 1, wherein an inner side of one side and an outer side of the other side of the door leaf are sealingly engaged with the door leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020247611.7U CN212428914U (en) | 2020-03-04 | 2020-03-04 | Bearing linkage non-pressure air door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020247611.7U CN212428914U (en) | 2020-03-04 | 2020-03-04 | Bearing linkage non-pressure air door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212428914U true CN212428914U (en) | 2021-01-29 |
Family
ID=74276341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020247611.7U Active CN212428914U (en) | 2020-03-04 | 2020-03-04 | Bearing linkage non-pressure air door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212428914U (en) |
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2020
- 2020-03-04 CN CN202020247611.7U patent/CN212428914U/en active Active
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