CN216188366U - Disc groove structure and air cushion machine middle section structure - Google Patents
Disc groove structure and air cushion machine middle section structure Download PDFInfo
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- CN216188366U CN216188366U CN202122696226.8U CN202122696226U CN216188366U CN 216188366 U CN216188366 U CN 216188366U CN 202122696226 U CN202122696226 U CN 202122696226U CN 216188366 U CN216188366 U CN 216188366U
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Abstract
The utility model belongs to the technical field of air cushion machines. A tray slot structure comprising: the arc parts are symmetrically arranged; the lowest part of the arc part is provided with single exhaust holes at intervals, and the exhaust holes are symmetrically arranged; the symmetrical axis of the exhaust long hole and the symmetrical axis of the arc part are arranged in a superposition way; and the connecting part is formed by extending the top edge of the arc-shaped part. A middle section structure of an air cushion machine comprises the air cushion machine disk groove structure. The utility model is used for solving the technical problem that the air holes on the disk groove of the existing air cushion machine are easy to block, so that the belt is laterally deviated and the material is leaked.
Description
Technical Field
The utility model belongs to the technical field of air cushion machines, and particularly relates to a disk groove structure of an air cushion machine and a middle section structure of the air cushion machine comprising the disk groove structure.
Background
At present, a belt conveyor is the most main equipment for large-yield horizontal conveying of bulk grains. Generally, the intermediate belt is supported by the carrier rollers, but a large number of carrier rollers have large friction resistance during operation, and the problem of abrasion is easy to occur after long-time use.
The disc groove and the air chamber shell form an air chamber of a closed structure, a plurality of air holes are formed in the disc groove, high-pressure air is blown into the air chamber by the fan, the high-pressure air is sprayed out from small holes in the disc groove and acts on a belt arranged on the disc groove, the belt is blown up when the pressure and the flow of the high-pressure air reach a certain value, the belt is not in direct contact with the disc groove any more, a thin air film is formed between the belt and the disc groove, namely the air cushion, the belt runs under the traction of the transmission roller and conveys materials on the belt to one end of the air cushion type belt conveyor and is detached, and the whole conveying process is completed.
In the prior art, when powder exists in the conveyed material, part of the powder scatters to the disc groove due to the action of air flow, air holes in the disc groove are blocked, and therefore acting force applied to the belt is unbalanced, the lateral deviation of the belt is generated, and the problems of material running and the like are caused. There is therefore a need for an improvement in existing air-cushion belt conveyors to overcome the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a disc groove structure, which is used for solving the technical problem that the air holes in the disc groove of the existing air cushion machine are easy to block, so that the belt is deviated laterally and runs materials.
In order to solve the technical problems, the utility model adopts the following technical scheme that the disc groove structure comprises:
the arc parts are symmetrically arranged; the lowest part of the arc part is provided with single exhaust holes at intervals, and the exhaust holes are symmetrically arranged; the symmetrical axis of the exhaust hole and the symmetrical axis of the arc part are arranged in a superposition way;
and the connecting part is formed by extending the top edge of the arc-shaped part.
By adopting the scheme, the method has the following technical effects: when the air cushion machine is used, one part of the belt with power input is positioned above the upper disc groove and used for bearing materials to run, and high-pressure air is introduced into the upper air chamber, so that the high-pressure air is sprayed out from the air holes to support the belt, the friction between the belt and the upper disc groove is reduced, and the belt runs stably. In order to ensure that the high-pressure air is sprayed out from the middle position and enough high-pressure air enters the disc groove and the belt to form a stable air film, the requirement of reducing the production cost is combined, and a mode of arranging long and narrow single-row holes is adopted. Because the air hole is arranged in the middle of the upper disc groove, the supporting force of the belt is balanced, and the possibility of belt deviation is low.
The high-pressure air is sprayed out from the air holes, blocked by the belt and diffused to two sides to form an air film occupying the gap between the belt and the disc groove. The material in the middle is heavier, and the air flow passing through the air holes can support the middle of the belt in a form of increasing the pressure. However, the upper limit of the air pressure has a reasonable range in view of safety. When the air pressure exceeds the range, the impact force of the air flow on the belt is too strong, and the side turning of the belt is caused. Meanwhile, the excessive air pressure may cause other safety hazards. The air holes are formed in the middle of the disc groove, so that the position, close to the middle, of the belt is supported by the air flow with the highest supporting force, and the positions, close to the two sides of the belt, are not provided with the air holes, so that the supporting force of the belt depends on the air film between the disc groove and the air bag, and the supporting force is relatively weak.
In order to solve the technical problem that a belt bearing materials cannot be lifted by air film supporting force, the utility model adopts the following technical scheme that the included angle between the connecting part and the horizontal plane is a groove angle, and the range of the groove angle is 45-50 degrees.
By adopting the scheme, the method has the following technical effects: even if the material near the two sides of the belt is light, if the arc angle of the disc groove is small, the belt bearing the material can not be lifted by the supporting force of the air film. The lifting means that a gap is formed between the belt and the upper disc groove. Therefore, the material on the belt should be concentrated as much as possible toward a position near the middle. And an included angle between the tangent plane direction of the arc-shaped part at the position of the connecting part and the horizontal direction is defined as a disc groove angle A. In this embodiment, the disc slot angle a is set to be greater than 45 ° so that the material on the belt is concentrated as close to the middle as possible.
In order to solve the technical problem of how to concentrate materials to the middle part, the utility model adopts the following technical scheme that the arc-shaped part is arranged in a downward concave mode. Because the tray groove is provided with the arc-shaped part which is concave downwards, the belt containing the materials is also concave downwards, and the materials on the belt are concentrated towards the middle part.
In order to solve the technical problem of blockage of the exhaust hole, the utility model adopts the following technical scheme that the exhaust hole is a round hole. If the cost factor is not considered, round holes can be used for replacement. The round hole has increased the air inlet space, has reduced the risk that the gas pocket blockked up.
In order to solve the technical problem of blockage of the exhaust hole, the utility model adopts the following technical scheme that the exhaust hole is a long hole, and the length direction of the long hole is consistent with the length direction of the arc-shaped part. The arrangement of the long holes increases the air inlet space and reduces the risk of air hole blockage. Even if some air holes are blocked, the supporting force of the belt is weakened at the position close to the middle part, and the side deviation is avoided, so that the material running problem caused by the side deviation of the belt is avoided.
In order to further solve the technical problem of exhaust hole blockage, the utility model adopts the following technical scheme that the exhaust holes are waist-shaped holes, and the length direction of the waist-shaped holes is consistent with the arrangement direction of the waist-shaped holes.
In order to further solve the technical problem of how to concentrate materials to the middle part, the utility model adopts the following technical scheme that the connecting part is of an obliquely arranged plate-shaped structure.
The second objective of the present invention is to provide a middle section structure of an air cushion machine, which is used to solve the technical problems of belt lateral deviation and material running of the existing air cushion machine.
In order to solve the technical problem, the utility model adopts the following technical scheme that the middle section structure of the air cushion machine comprises:
an upper housing;
a cover body which is fixedly connected on the upper casing, an upper layer conveying space is formed between the cover body and the upper casing,
the upper disc groove structure is positioned in the upper layer conveying space and divides the upper layer conveying space into an upper space and a lower space; the space below is an upper air chamber;
the lower casing is fixedly connected to the bottom of the lower casing, a lower layer return space is formed between the upper casing and the lower casing, and air grooves are formed in the bottom of the lower casing at intervals and extend along the length direction of the lower casing;
the lower disc groove is positioned in the lower layer return space and attached to the inner part of the bottom surface of the lower shell, so that the air groove is sealed, and a plurality of air passing holes are formed in the lower disc groove along the direction of the air groove;
the air groove is communicated with the upper air chamber through an external connecting pipe, so that part of air in the upper air chamber is introduced into the air groove and is discharged through the air outlet hole, and the return belt is supported.
By adopting the scheme, the method has the following technical effects: the air hole is formed in the middle of the upper disc groove, so that the supporting force of the belt is balanced, and the possibility of the belt deviation is low; the setting in exhaust hole has increased the air inlet space, has reduced the risk that the gas pocket blockked up. Even if some air holes are blocked, the supporting force of the belt is weakened at the position close to the middle part, and the side deviation is avoided, so that the material running problem caused by the side deviation of the belt is avoided.
In order to solve the technical problem that dust in the upper conveying space escapes, the cover body is detachably covered on the upper shell, so that the risk of dust escape in the upper conveying space is reduced.
The utility model is further improved, and the upper layer conveying space is of a box-type structure; the lower layer return space is of a box-type structure.
Drawings
FIG. 1 is a perspective view of the disk slot structure of the air cushion machine of the present invention;
FIG. 2 is a side view of the disk slot structure of the air cushion machine of the present invention;
FIG. 3 is a perspective view of the air mattress machine of the present invention (excluding the lower housing);
FIG. 4 is a side view of FIG. 3;
fig. 5 is a state view of the air cushion machine of the present invention in use.
Detailed Description
Example 1
As shown in fig. 1 and 2, the disk slot 2 includes an arc portion 21 and a connecting portion 22.
The arc portion 21 has a symmetrical structure and is recessed downward. The lowest part of the arc part 21 is provided with single exhaust holes 23 at intervals, and the exhaust holes 23 are symmetrically arranged; the exhaust hole symmetry axis 23 is coincident with the symmetry axis of the arc portion 21.
The connecting portion 22 is formed by extending the top edge of the arc portion 21. The connecting portion 22 is preferably a plate-like structure that is obliquely disposed. The angle between the connecting portion 22 and the horizontal plane is a groove angle 24, and the angle of the groove angle a is 45-50 °.
The high-pressure air is sprayed out from the air holes, blocked by the belt and diffused to two sides to form an air film occupying the gap between the belt and the disc groove. Because the dish groove has undercut arc portion, consequently the belt that holds the material is undercut too, and this just makes the material on the belt concentrate to the middle part, causes the condition that middle part material, both sides material is light. The material in the middle is heavier, and the air flow passing through the air holes can support the middle of the belt in a form of increasing the pressure. However, the upper limit of the air pressure has a reasonable range in view of safety. When the air pressure exceeds the range, the impact force of the air flow on the belt is too strong, and the side turning of the belt is caused. Meanwhile, the excessive air pressure may cause other safety hazards. In the embodiment, the air holes are formed in the middle of the disc groove, so that the position, close to the middle, of the belt is supported by the air flow with the highest supporting force, and the positions, close to the two sides of the belt, are not provided with the air holes, so that the supporting force depends on the air film between the disc groove and the air bag, and the supporting force is relatively weak. Even if the material near the two sides of the belt is light, if the arc angle of the disc groove is small, the belt bearing the material can not be lifted by the supporting force of the air film. The lifting means that a gap is formed between the belt and the upper disc groove. Therefore, the material on the belt should be concentrated as much as possible toward a position near the middle. And an included angle between the tangent plane direction of the arc-shaped part at the position of the connecting part and the horizontal direction is defined as a disc groove angle A. In this embodiment, the disc slot angle A is set to be greater than 45-50. So that the material on the belt is concentrated as close to the middle as possible.
The exhaust holes 23 may be long holes, the length direction of which coincides with the length direction of the arc-shaped portion, preferably kidney-shaped holes.
The slot holes may be replaced by a plurality of circular holes, without regard to production costs.
The utility model changes the air holes on the disk groove from multi-row to single-row so as to avoid the problems of belt deviation and material running. The utility model adjusts the structure and size of the air holes in order to adapt to the change of the arrangement mode of the air holes. The utility model adjusts the arc shape of the disc groove to adapt to the change of the air hole arrangement mode.
The utility model reduces energy waste, the air flow sprayed out of the air holes of the disc groove has the maximum acting route, the efficiency is improved, and the waste is reduced. The utility model avoids the influence of vortex, unstable air pressure and the like in the air chamber on the supporting force and reduces the deviation probability of the belt. The utility model avoids the influence of air hole blockage on the supporting force and reduces the deviation probability of the belt. The utility model reduces the occurrence of unstable air film caused by fan problem.
Example 2
As shown in fig. 3-5, the middle section structure of the air cushion machine includes an upper casing 1, a lower casing, an upper tray groove 2, a lower tray groove, and a cover 3.
The cover body 3 is detachably covered on the upper shell body 1. An upper conveying space 4 is formed between the cover body 3 and the upper casing 1. The upper conveying space 4 is of a box-type structure.
The upper tray groove adopts the tray groove structure of the embodiment 1, and the upper tray groove structure is positioned in the upper layer conveying space and divides the upper layer conveying space into an upper space and a lower space; the space below is an upper air chamber 5;
the lower casing is fixedly connected to the bottom of the lower casing, a lower layer return space is formed between the upper casing and the lower casing, and the lower layer return space is of a box-type structure. The bottom interval of casing sets up the gas tank down, and the gas tank extends along casing length direction down.
The lower disc groove is attached to the inner part of the bottom surface of the lower shell to seal the air groove, and a plurality of air holes are formed in the lower disc groove along the direction of the air groove.
The air groove is communicated with the upper air chamber through an external connecting pipe, so that part of air in the upper air chamber is introduced into the air groove and is discharged through the air outlet hole, and the return belt is supported.
When the air cushion machine is used, one part of the belt 6 with power input is positioned above the upper disc groove and used for bearing materials 7 to run, and high-pressure air is introduced into the upper air chamber to be sprayed out from the air holes to support the belt, so that the friction between the belt and the upper disc groove is reduced, and the belt runs stably. In order to ensure that the high-pressure air is sprayed out from the middle position and enough high-pressure air enters the disc groove and the belt to form a stable air film, the requirement of reducing the production cost is combined, and a mode of arranging long and narrow single-row holes is adopted. Because the air hole is arranged in the middle of the upper disc groove, the supporting force of the belt is balanced, and the possibility of belt deviation is low.
Claims (10)
1. Dish groove structure, characterized by includes:
the arc parts are symmetrically arranged; the lowest part of the arc part is provided with single exhaust holes at intervals, and the exhaust holes are symmetrically arranged; the symmetrical axis of the exhaust hole and the symmetrical axis of the arc part are arranged in a superposition way;
and the connecting part is formed by extending the top edge of the arc-shaped part.
2. The disc groove structure according to claim 1, wherein the angle between the connection portion and the horizontal plane is a groove angle in the range of 45-50 °.
3. The disc groove structure according to claim 1 or 2, wherein the arc-shaped portion is provided depressed downward.
4. The disc groove structure according to claim 1, wherein the exhaust hole is a circular hole.
5. The disk slot structure according to claim 1, wherein said air discharge hole is a long hole, and a length direction of the long hole coincides with a length direction of the arc portion.
6. The disc groove structure according to claim 5, wherein the exhaust holes are kidney-shaped holes.
7. The disc groove structure according to claim 1, wherein the connecting portion is a plate-like structure that is obliquely arranged.
8. Air cushion machine middle section structure, characterized by includes:
an upper housing;
a cover body which is fixedly connected on the upper casing, an upper layer conveying space is formed between the cover body and the upper casing,
an upper tray groove which adopts the tray groove structure of any one of claims 1 to 7, is positioned in the upper layer conveying space and divides the upper layer conveying space into an upper space and a lower space; the space below is an upper air chamber;
the lower casing is fixedly connected to the bottom of the lower casing, a lower layer return space is formed between the upper casing and the lower casing, and air grooves are formed in the bottom of the lower casing at intervals and extend along the length direction of the lower casing;
the lower disc groove is attached to the inner part of the bottom surface of the lower shell to seal the air groove, and a plurality of air passing holes are formed in the lower disc groove along the direction of the air groove;
the air groove is communicated with the upper air chamber through an external connecting pipe, so that part of air in the upper air chamber is introduced into the air groove and is discharged through the air outlet hole, and the return belt is supported.
9. The mid-section structure of an air mattress of claim 8, wherein said cover removably covers said upper housing.
10. The mid-section structure of an air mattress machine of claim 8, wherein said upper conveying space is a box-type structure; the lower layer return space is of a box-type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122696226.8U CN216188366U (en) | 2021-11-05 | 2021-11-05 | Disc groove structure and air cushion machine middle section structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122696226.8U CN216188366U (en) | 2021-11-05 | 2021-11-05 | Disc groove structure and air cushion machine middle section structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216188366U true CN216188366U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122696226.8U Active CN216188366U (en) | 2021-11-05 | 2021-11-05 | Disc groove structure and air cushion machine middle section structure |
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| Country | Link |
|---|---|
| CN (1) | CN216188366U (en) |
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2021
- 2021-11-05 CN CN202122696226.8U patent/CN216188366U/en active Active
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