CN220015938U - Damping mechanism of coal mining machine - Google Patents
Damping mechanism of coal mining machine Download PDFInfo
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- CN220015938U CN220015938U CN202320983263.3U CN202320983263U CN220015938U CN 220015938 U CN220015938 U CN 220015938U CN 202320983263 U CN202320983263 U CN 202320983263U CN 220015938 U CN220015938 U CN 220015938U
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- damping
- base
- rod
- limiting plate
- coal mining
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- 238000013016 damping Methods 0.000 title claims abstract description 129
- 239000003245 coal Substances 0.000 title claims abstract description 35
- 238000005065 mining Methods 0.000 title claims abstract description 33
- 230000000694 effects Effects 0.000 abstract description 7
- 230000003139 buffering effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The utility model relates to the technical field of coal mining machines, in particular to a damping mechanism of a coal mining machine, which comprises a base, a supporting structure and a damper, wherein base plates are respectively arranged at four corners of the top end of the base through telescopic upright posts, the supporting structure is arranged between opposite surfaces of the base and the base plates, and the damper is arranged in the telescopic upright posts; the support structure comprises an I-shaped frame, the I-shaped frame is formed by crisscross forming a vertical rod and two cross rods, and two ends of each cross rod are respectively connected with opposite surfaces of two adjacent telescopic upright posts; according to the utility model, the base is stably arranged above the base by arranging the supporting structure and the telescopic upright post, so that the base is used for supporting and fixing the coal mining machine; when the coal mining machine generates impact vibration, a certain buffering effect can be achieved through the supporting structure, and the damper arranged inside the telescopic upright post can achieve a damping effect through the damper when the coal mining machine drives the telescopic upright post to reciprocate and stretch through the base plate.
Description
Technical Field
The utility model relates to the technical field of coal mining machines, in particular to a damping mechanism of a coal mining machine.
Background
The coal mining machine is evolved from a coal cutter, and can be caused to fail under the condition of severe working environment, so that the coal mining machine needs to be damped when being used, and the damage among parts is reduced; as disclosed in the prior art with publication number CN211117343U, the damping device of the coal mining machine reduces the impact force born by a single damping device and improves the stability and persistence of the damping by dispersing the overall impact force of the coal mining machine on the steel plate, the first spring and the hydraulic damping device.
However, the connection between the parts in the damping device is not stable enough, which can lead to detachment during use and influence the damping effect.
Disclosure of Invention
The utility model aims to provide a damping mechanism of a coal mining machine, which mainly solves the technical problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a shearer vibration absorbing mechanism comprising:
the base is provided with base plates at four corners of the top end of the base through telescopic upright posts respectively, and the base plates are used for installing a coal mining machine;
the support structure is arranged between the base and the opposite surface of the base plate and comprises an I-shaped frame which is horizontally arranged on the four telescopic upright posts;
the H-shaped frame comprises a vertical rod and two cross rods, the middle parts of the cross rods are connected with two ends of the vertical rod, two ends of the two cross rods are respectively connected with opposite surfaces of two adjacent telescopic upright posts, two sliding blocks are arranged on the outer surface of the vertical rod, and an extension spring is arranged between the opposite surfaces of the two sliding blocks and sleeved on the outer surface of the vertical rod;
a pressing block is arranged right above the I-shaped frame, the top end of the pressing block is connected with the bottom end of the substrate through a supporting column, and two opposite sides of the pressing block are respectively connected with the sliding block through two groups of cranks;
and the damper is arranged in the telescopic upright post and is used for damping impact force generated by the coal mining machine.
Preferably, the telescopic upright post comprises a barrel body and a telescopic rod, the interior of the barrel body is of a hollow structure, the barrel body is arranged at the top end of the base, the telescopic rod is slidably arranged in the barrel body, and one end of the telescopic rod penetrates through the inner wall of the barrel body and extends to the upper side of the barrel body to be connected with the bottom end of the base plate;
the damper is arranged in the cylinder body and used for damping the telescopic rod.
Preferably, the damper comprises a limiting plate, the limiting plate is arranged at the bottom end of the telescopic rod, the outer surface of the limiting plate is in sliding connection with the inner wall of the cylinder, and a damping spring is arranged between the bottom end of the limiting plate and the bottom end of the inner wall of the cylinder;
at least one group of damping blocks are arranged on the outer surface of the telescopic rod and positioned in the cylinder body, a plurality of damping blocks are arranged in each group, and the damping blocks are arranged side by side at equal intervals along the vertical direction;
the inner wall of barrel is close to every group one side of damping piece is provided with a damping hole at least, install the damping pole through reset spring in the damping hole, the surface and the inner wall sliding connection of damping hole 54 of damping pole, reset spring is used for extruding the damping hole with the one end of damping pole for the damping pole is kept away from reset spring's one end stretches out the damping hole, and with the mutual block between a plurality of damping pieces.
The damping rod is far away from one end of the return spring, extends to the outer side of the damping hole, is clamped with the damping blocks, and is used for extruding one end of the damping rod out of the damping hole.
Preferably, the damping hole is disposed between the limiting plate and the damping block near one side of the limiting plate.
Preferably, the damping block is arranged to be of a hemispherical structure, and one end of the damping rod, which is positioned outside the damping hole, is the same as the damping block in structure size.
Preferably, the distance between two adjacent damping blocks and the distance between the limiting plate and the damping block close to one side of the limiting plate are larger than the diameter of the damping block.
Preferably, guide posts are respectively sleeved at two ends of the damping spring, and the two guide posts are respectively arranged at the bottom end of the limiting plate and the bottom end of the inner wall of the cylinder body.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the base is stably arranged above the base by arranging the supporting structure and the telescopic upright post, so that the base is used for supporting and fixing the coal mining machine; when the coal mining machine generates impact vibration, a certain buffering effect can be achieved through the supporting structure, and the damper arranged inside the telescopic upright post can achieve a damping effect through the damper when the coal mining machine drives the telescopic upright post to reciprocate and stretch through the base plate.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a damping mechanism of a shearer of the present utility model;
FIG. 2 is a schematic view of the internal structure of the telescopic column of FIG. 1 according to the present utility model;
in the figure: 1. the device comprises a base, 2, telescopic upright posts, 21, a cylinder body, 22, telescopic rods, 3, a base plate, 4, a supporting structure, 41, an I-shaped frame, 42, a sliding block, 43, an extension spring, 44, a pressing block, 45, a crank, 46, a supporting column, 5, a damper, 51, a limiting plate, 52, a damping spring, 53, a damping block, 54, a damping hole, 55, a return spring, 56, a damping rod, 57 and a guide column.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-2, the utility model provides a damping mechanism of a coal mining machine, which comprises a base 1, a supporting structure 4 and a damper 5, wherein four corners of the top end of the base 1 are respectively provided with a base plate 3 through telescopic upright posts 2, and the base plates 3 are used for installing the coal mining machine; the supporting structure 4 is arranged between the opposite surfaces of the base 1 and the base plate 3, and is used for stably mounting the base plate 3 at the top end of the base 1 and playing a role in buffering impact vibration generated in the working process of the coal mining machine; the damper 5 is installed inside the telescopic upright post 2 and is used for damping impact force generated by the coal mining machine.
The support structure 4 comprises an I-shaped frame 41, and the I-shaped frame 41 is horizontally arranged on the four telescopic upright posts 2; the I-shaped frame 41 comprises a vertical rod and two cross rods, the middle parts of the two cross rods are connected with the two ends of the installation vertical rod, the two ends of the two cross rods are respectively welded with the opposite surfaces of the two adjacent telescopic upright posts 2, two sliding blocks 42 are slidably arranged on the outer surfaces of the vertical rod, an extension spring 43 is fixedly arranged between the opposite surfaces of the two sliding blocks 42, and the extension spring 43 is sleeved on the outer surfaces of the vertical rod; a pressing block 44 is arranged right above the I-shaped frame 41, the top end of the pressing block 44 is welded with the bottom end of the base plate 3 through a supporting column 46, and two opposite sides of the pressing block 44 are respectively connected with the outer surface of the sliding block 42 through two groups of cranks 45 in a rotating way; when the coal mining machine vibrates in the working process, the coal mining machine drives the substrate 3 to vibrate vertically synchronously, so that the substrate 3 drives the pressing block 44 to reciprocate vertically through the supporting column 46, then the pressing block 44 drives the two sliding blocks 42 to slide along the outer surface of the vertical rod towards one side close to or far away from each other through the crank 45, and the two sliding blocks 42 drive the extension spring 43 to shrink or stretch, and impact force is dispersed on the extension spring 43, so that a certain buffer effect is achieved on the coal mining machine; meanwhile, the base plate 3 drives the telescopic stand 2 to alternately reciprocate in the vibration process.
Further, the telescopic upright post 2 comprises a barrel 21 and a telescopic rod 22, the inside of the barrel 21 is of a hollow structure, the barrel 21 is arranged at the top end of the base 1, the telescopic rod 22 is slidably arranged in the barrel 21, and one end of the telescopic rod 22 penetrates through the inner wall of the barrel 21 and extends to the upper side of the barrel 21 to be welded with the bottom end of the base plate 3; the damper 5 is installed inside the cylinder 21 and is used for buffering and damping the telescopic rod 22; the damper 5 comprises a limiting plate 51, the limiting plate 51 is welded at the bottom end of the telescopic rod 22, the outer surface of the limiting plate 51 is in sliding connection with the inner wall of the cylinder 21, and a damping spring 52 is arranged between the bottom end of the limiting plate 51 and the bottom end of the inner wall of the cylinder 21 and is used for secondarily buffering impact force; referring to fig. 2, two groups of damping blocks 53 are symmetrically arranged on the outer surface of the telescopic rod 22 and in the cylinder 21, each group of damping blocks 53 is provided with a plurality of damping blocks 53, and the damping blocks 53 are arranged side by side at equal intervals along the vertical direction; at least one damping hole 54 is formed in one side, close to each group of damping blocks 53, of the inner wall of the cylinder 21, a damping rod 56 is movably mounted in the damping hole 54 through a return spring 55, the outer surface of the damping rod 56 is slidably connected with the inner wall of the damping hole 54, and the return spring 55 is used for extruding one end of the damping rod 56 out of the damping hole 54, so that one end, far away from the return spring 55, of the damping rod 56 extends out of the damping hole 54 and is clamped with the damping blocks 53.
In this embodiment, when the coal mining machine drives the base plate 3 to vibrate up and down, the base plate 3 drives the telescopic rod 22 to reciprocate up and down along the inner wall of the cylinder 21, so that the telescopic rod 22 alternately stretches or compresses the damping spring 52 through the limiting plate 51, and the impact force is secondarily buffered; meanwhile, in the telescopic process of the telescopic rod 22, the damping rod 56 is extruded in a reciprocating mode through the plurality of damping blocks 53, the damping rod 56 is enabled to conduct reciprocating alternating telescopic sliding along the inner wall of the damping hole 54 under the action of elastic restoring force of the restoring spring 55, the damping rod 22 is continuously clamped among the plurality of damping blocks 53, the damping effect on the telescopic rod 22 is achieved, the impact force of the coal mining machine is gradually reduced, and then the damping effect on the coal mining machine is achieved.
Further, the damping hole 54 is arranged between the limiting plate 51 and the damping block 53 near one side of the limiting plate 51, so that when the telescopic rod 22 receives downward impact force, the damper 5 is immediately driven to start working, the impact force of the coal mining machine can be quickly buffered and damped, and the damping effect is improved; when the telescopic rod 22 receives upward impact force, the base plate 3 stretches the telescopic rod 22, and the damping rod 56 is blocked by the limiting plate 51 at the moment, so that the extending length of the telescopic rod 22 is limited, and the impact force can be greatly relieved; meanwhile, the damping blocks 53 are arranged in a hemispherical structure, and one end of the damping rod 56, which is positioned outside the damping holes 54, is identical to the damping blocks 53 in structure size and is used for ensuring that the damping rod 56 can be clamped among a plurality of damping blocks 53; and, the interval between two adjacent damping blocks 53 and the interval between limiting plate 51 and the damping block 53 near one side of limiting plate 51 are all greater than the diameter of damping block 53, can guarantee that damping rod 56 and damping block 53 fully contact for after damping rod 56 breaks away from first damping block 53, continue to block between next damping block 53.
It should be noted that: in this embodiment, in order to improve the structural stability of the damper 5, four groups of damping blocks 53 may be disposed on the telescopic rod 22, and the four groups of damping blocks 53 are uniformly distributed on the outer surface of the telescopic rod 22 in a ring shape, and simultaneously four corresponding damping holes 54 are uniformly formed on the inner wall of the cylinder 21 in a ring shape, so as to install the return spring 55 and the damping rod 56, so that the impact force on the limiting plate 51 to the damping rod 56 is uniformly distributed.
Further, the two ends of the damping spring 52 are respectively sleeved with a guide post 57, and the two guide posts 57 are respectively fixedly installed on the bottom end of the limiting plate 51 and the bottom end of the inner wall of the cylinder 21, so as to prevent the damping spring 52 from generating transverse deformation in the compression process.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (7)
1. A coal cutter damper mechanism, comprising:
the coal mining machine comprises a base (1), wherein base plates (3) are respectively arranged at four corners of the top end of the base (1) through telescopic upright posts (2), and the base plates (3) are used for installing the coal mining machine;
the support structure (4), the support structure (4) is arranged between the opposite surfaces of the base (1) and the base plate (3), the support structure (4) comprises an I-shaped frame (41), and the I-shaped frame (41) is horizontally arranged on the four telescopic upright posts (2);
the H-shaped frame (41) comprises a vertical rod and two cross rods, the middle parts of the cross rods are connected with two ends of the vertical rod, two ends of each cross rod are respectively connected with opposite surfaces of two adjacent telescopic upright posts (2), two sliding blocks (42) are arranged on the outer surface of the vertical rod, an extension spring (43) is arranged between the opposite surfaces of the two sliding blocks (42), and the extension spring (43) is sleeved on the outer surface of the vertical rod;
a pressing block (44) is arranged right above the I-shaped frame (41), the top end of the pressing block (44) is connected with the bottom end of the base plate (3) through a supporting column (46), and two opposite sides of the pressing block (44) are respectively connected with the sliding block (42) through two groups of cranks (45);
and the damper (5) is arranged in the telescopic upright post (2) and is used for absorbing impact force generated by the coal mining machine.
2. The shearer vibration absorbing mechanism of claim 1, wherein: the telescopic upright post (2) comprises a barrel (21) and a telescopic rod (22), wherein the inside of the barrel (21) is of a hollow structure, the barrel (21) is installed at the top end of the base (1), the telescopic rod (22) is slidably installed inside the barrel (21), and one end of the telescopic rod (22) penetrates through the inner wall of the barrel (21) and extends to the upper side of the barrel (21) to be connected with the bottom end of the base plate (3);
the damper (5) is arranged in the cylinder (21) and is used for damping the telescopic rod (22).
3. The shearer vibration absorbing mechanism of claim 2, wherein: the damper (5) comprises a limiting plate (51), the limiting plate (51) is arranged at the bottom end of the telescopic rod (22), the outer surface of the limiting plate (51) is in sliding connection with the inner wall of the cylinder body (21), and a damping spring (52) is arranged between the bottom end of the limiting plate (51) and the bottom end of the inner wall of the cylinder body (21);
at least one group of damping blocks (53) are arranged on the outer surface of the telescopic rod (22) and positioned in the barrel (21), a plurality of damping blocks (53) are arranged in each group, and the damping blocks (53) are arranged side by side at equal intervals along the vertical direction;
the inner wall of barrel (21) is close to one side of every group damping piece (53) is provided with at least one damping hole (54), install damping rod (56) through reset spring (55) in damping hole (54), the surface of damping rod (56) with the inner wall sliding connection of damping hole (54), reset spring (55) are used for extruding damping hole (54) with one end of damping rod (56) for damping hole (54) are stretched out to one end that reset spring (55) was kept away from to damping rod (56) to block each other between a plurality of damping pieces (53).
4. A shearer vibration absorbing mechanism as defined in claim 3, wherein: the damping hole (54) is arranged between the limiting plate (51) and the damping block (53) close to one side of the limiting plate (51).
5. The shearer vibration absorbing mechanism of claim 4, wherein: the damping block (53) is of a hemispherical structure, and one end of the damping rod (56) located outside the damping hole (54) is identical to the damping block (53) in structure size.
6. The shearer vibration absorbing mechanism of claim 5, wherein: the distance between two adjacent damping blocks (53) and the distance between the limiting plate (51) and the damping block (53) close to one side of the limiting plate (51) are larger than the diameter of the damping block (53).
7. The shearer vibration absorbing mechanism of claim 6, wherein: guide posts (57) are sleeved at two ends of the damping spring (52) respectively, and the two guide posts (57) are mounted at the bottom end of the limiting plate (51) and the bottom end of the inner wall of the cylinder body (21) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320983263.3U CN220015938U (en) | 2023-04-26 | 2023-04-26 | Damping mechanism of coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320983263.3U CN220015938U (en) | 2023-04-26 | 2023-04-26 | Damping mechanism of coal mining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220015938U true CN220015938U (en) | 2023-11-14 |
Family
ID=88671082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320983263.3U Active CN220015938U (en) | 2023-04-26 | 2023-04-26 | Damping mechanism of coal mining machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220015938U (en) |
-
2023
- 2023-04-26 CN CN202320983263.3U patent/CN220015938U/en active Active
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