CN209924988U - Spraying device in coal mining machine - Google Patents
Spraying device in coal mining machine Download PDFInfo
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- CN209924988U CN209924988U CN201920158861.0U CN201920158861U CN209924988U CN 209924988 U CN209924988 U CN 209924988U CN 201920158861 U CN201920158861 U CN 201920158861U CN 209924988 U CN209924988 U CN 209924988U
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Abstract
The utility model discloses an atomizer in coal-winning machine sets up the cylinder on the coal-winning machine, sets up a plurality of picks on the cylinder, and atomizer is fixed in the outside of cylinder, include: the spray base, the spray head, the blocking plate and the elastic connecting piece are arranged on the spray base; the spraying base is obliquely fixed on the outer part of the roller and is arranged between two adjacent cutting teeth, the end part of the spraying head is rotatably sleeved in the spraying base, the inner cavities of the spraying base and the spraying head are communicated with a spraying pipeline in the roller, the inner side wall of the water outlet end of the spraying head is provided with a step surface, and the blocking plate is arranged at the water outlet end of the spraying head and is in lap joint with the step surface; one end of the elastic connecting piece is fixed on the inner side of the blocking plate, and the other end of the elastic connecting piece is fixedly connected with the inner cavity of the atomizing head. The utility model provides a atomizer can reduce in coal mining process coal cinder and waste rock to the collision and the damage of atomising head, can prevent that the atomising head from blockking up to still be convenient for change the atomising head.
Description
Technical Field
The utility model relates to a mining technology field, more specifically the spray device in coal-winning machine that says so relates to.
Background
For coal mining, a drum shearer is a main coal mining device, the shearer can cut, crush and charge coal bodies, a large amount of coal dust can be generated in the coal cutting process of the shearer, the sight of operators such as a shearer driver is reduced, and the coal dust is greatly damaged. Therefore, the coal mining machine is required to be provided with a qualified spraying device when in use, and dust in the coal mining process is reduced.
The spray head of the spray device in the existing coal cutter is embedded at the periphery of a roller of the coal cutter, when the roller of the coal cutter rotates to cut a coal body, the spray device eliminates generated coal dust, but the spray device continuously bears impact collision and friction of coal blocks and gangue mixed in the coal blocks during coal cutting, and the phenomena of abrasion and blockage of spray holes are easy to occur.
Therefore, the research of the coal mining machine inner spraying device which is not easy to block or damage and has long service life is a problem which needs to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a can reduce in coal mining process coal cinder and waste rock to the collision and the damage of atomising head, and can prevent to block up, be convenient for change atomizer in the coal-winning machine.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a spraying device in coal-winning machine sets up the cylinder on the coal-winning machine, set up a plurality of picks on the cylinder, spraying device is fixed in the outside of cylinder, its characterized in that includes: the spray base, the spray head, the blocking plate and the elastic connecting piece are arranged on the spray base; the spraying base is obliquely fixed on the outer portion of the roller and is arranged between every two adjacent cutting teeth, the end portion of the spraying head is rotatably sleeved inside the spraying base, inner cavities of the spraying base and the spraying head are communicated with a spraying pipeline inside the roller, a step surface is arranged on the inner side wall of the water outlet end of the spraying head, and the blocking plate is arranged at the water outlet end of the spraying head and is in lap joint with the step surface; one end of the elastic connecting piece is fixed on the inner side of the blocking plate, and the other end of the elastic connecting piece is fixedly connected with the inner cavity of the atomizing spray head.
The technical scheme has the advantages that the spray head of the utility model can rotate when in use and can also play a role in relieving the impact of the coal briquette; connect elastic connection spare between closure plate and the atomising head, the closure plate is opened when the atomising head sprays, when going out the water and breaking off, under elastic connection spare's effect, the closure plate seals the delivery port of atomising head, can effectually avoid the atomising head to be blockked up like this.
Preferably, an annular stop block for bearing collision is fixed at the edge of the water outlet end of the spray head.
Adopt above-mentioned technical scheme's beneficial effect is, the utility model discloses in bear the striking of coal cinder through the dog, can alleviate the damage of external force to the atomising head.
Preferably, the spraying device further comprises a conical plug for blocking a water outlet of the water outlet channel of the spraying head; the spray head comprises a water outlet structure and a blocking plate mounting part, one end of the water outlet structure is rotatably sleeved in the spray base and is provided with a water outlet channel penetrating through two ends, one end of the blocking plate mounting part is integrally connected with the other end of the water outlet structure, and a mounting cavity is formed in the blocking plate mounting part; the sectional area of the mounting cavity is larger than that of the water outlet channel; the blocking plate is arranged on the step surface of the inner side wall of the other end of the blocking plate mounting part, and a connecting column is fixed on one side facing the inside of the mounting cavity; the conical plug is fixed at the other end of the connecting column.
The beneficial effects of adopting above-mentioned technical scheme are that, the delivery port of atomising head outlet channel will be blockked up to the toper stopper, can realize opening and close of atomising head better.
Preferably, the spraying device further comprises a limiting ring for limiting the blocking plate; the outward flange of spacing ring with the installation intracavity wall fixed connection of closure plate installation department, the spliced pole is arranged in just be in the ring of spacing ring the flexible removal in the spacing ring.
Preferably, a plurality of through holes for circulating liquid are uniformly formed in the surface of the limiting ring.
Preferably, one end of the elastic connecting piece is fixedly connected with the inner side of the limiting ring, and the other end of the elastic connecting piece is fixedly connected with one side, facing the limiting ring, of the conical plug.
Adopt above-mentioned technical scheme's beneficial effect is, the closure plate is when the switching, and the spliced pole can remove in spacing ring, and spacing ring can play limiting displacement to the spliced pole, prevents that the spliced pole from breaking away from the atomising head, and when having high-pressure water to strike, the closure plate is opened the blowout spraying, and when going out the water and breaking off, under the elastic connection spare effect, the closure plate can be sealed for the more accuracy of the switching of closure plate.
Preferably, the elastic cover is sleeved on the outer side of the elastic connecting piece, one end of the elastic cover is connected with the inner side of the limiting ring in a sealing mode, and the other end of the elastic cover is connected with one side, facing the limiting ring, of the conical plug in a sealing mode.
The beneficial effects of adopting above-mentioned technical scheme are that, the elastic cover can protect elastic connection spare effectively, makes it keep apart with the water, avoids elastic connection spare to rust because of long-term contact water to the elastic cover has certain elasticity, when using, can avoid causing the influence to elastic connection spare's flexible.
Preferably, a first groove is formed in the outer surface of the joint of the water outlet structure and the spraying base, a circular groove is formed in the outer surface of the joint of the spraying base and the water outlet structure, a second groove is formed in the circular groove, and the first groove is communicated with the second groove; the spray base further comprises a first petal body and a second petal body; the first petal body and the second petal body are combined into a circular ring which is clamped in the circular ring groove, flanges are arranged on the inner sides of the first petal body and the second petal body, and the flanges are inserted into the first groove and the second groove and are clamped with the spraying base and the spraying head.
Preferably, a threaded through hole is formed in a contact position of the second petal body and the first petal body, the threaded through hole faces the direction of the first petal body, a threaded hole is formed in a position, corresponding to the threaded through hole, of the first petal body, and the threaded through hole and the threaded hole are internally connected with a stud.
The beneficial effects of adopting above-mentioned technical scheme are that, make atomising head and the stable being connected of spraying base through the setting up of first lamella body and the second lamella body, and the atomising head can rotate on the spraying base, can slow down the impact force of coal cinder to the atomising head when using to connect atomising head and spraying base through first lamella body and the second lamella body, can conveniently realize the installation and the dismantlement to the atomising head.
Preferably, the spray base is inclined in a direction opposite to that of the cutting pick, and the distance from the top of the spray head to the drum is smaller than that from the top of the cutting pick to the drum.
The beneficial effects of adopting above-mentioned technical scheme are that, when the cylinder is at rotatory cutting coal body, can avoid the play water end of atomising head directly to take place the front impact with coal and rock, play the effect of protection atomising head.
The utility model has the advantages that:
(1) the utility model discloses in spray the base and be fixed in between the pick, the top of atomising head is connected the dog, can avoid the water outlet end of atomising head directly to take place the positive impact with coal and rock mass, plays the guard action to the atomising head is connected with the spraying base rotation, makes the atomising head can take place to rotate when receiving external force impact, improves the performance that the atomising head bears external force collision, extrusion and friction;
(2) the spray head is connected with the spray base through the first flap body and the second flap body, so that the spray head is convenient to disassemble and assemble, and can be conveniently replaced when the spray head is damaged;
(3) the nozzle of the atomizing head is provided with a blocking plate connected with the elastic connecting piece, so that the blocking plate can be rapidly reset under the elastic action of the elastic connecting piece when the atomizing is interrupted, the water outlet can be blocked in time, and the water outlet can be prevented from being blocked.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a spraying device provided by the present invention;
FIG. 2 is an enlarged view of the structure at A according to the present invention;
fig. 3 is a schematic cross-sectional view of the installation position of the first flap body and the second flap body provided by the present invention;
fig. 4 is a schematic cross-sectional view of the limiting ring according to the present invention.
Wherein, in the figure,
1-a roller; 2-cutting pick;
3-a spray base;
31-a circular groove;
311-a second groove;
32-a first petal;
321-a flange; 322-a threaded hole;
33-a second petal;
331-threaded through hole;
34-a stud;
4-a spray head;
41-water outlet structure;
411-a first groove;
42-a closure plate mounting portion;
421-step surface;
5-a stop block; 6-blocking plate; 7-an elastic connector; 8-connecting column; 9-a conical plug;
10-a limit ring;
101-a through hole;
11-elastic cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model discloses atomizer in coal-winning machine sets up cylinder 1 on the coal-winning machine, sets up a plurality of picks 2 on the cylinder 1, and atomizer is fixed in the outside of cylinder 1, a serial communication port, include: the spray base 3, the spray head 4, the blocking plate 6 and the elastic connecting piece 7; the spraying base 3 is obliquely fixed on the outer part of the roller 1 and is arranged between two adjacent cutting teeth 2, the end part of the spraying head 4 is rotatably sleeved in the spraying base 3, inner cavities of the spraying base 3 and the spraying head 4 are communicated with a spraying pipeline in the roller 1, the inner side wall of the water outlet end of the spraying head 4 is provided with a step surface 421, and the blocking plate 6 is arranged at the water outlet end of the spraying head 4 and is overlapped with the step surface 421; one end of the elastic connecting piece 7 is fixed at the inner side of the blocking plate 6, and the other end is fixedly connected with the inner cavity of the spray head 4. When the atomizing head 4 is used, the atomizing head can rotate when being impacted by external force, and the impact of the external force can be reduced.
Further, an annular stop 5 for receiving impact is fixed at the edge of the water outlet end of the spray head 4. The stop block 5 is made of alloy blocks, the alloy blocks are high in impact resistance, the alloy blocks are distributed around the water outlet end of the spray head 4 and can bear collision, extrusion and friction of external force, the water outlet end of the spray head 4 is protected, and the service life of the spray head 4 is prolonged.
Further, the spraying device also comprises a conical plug 9 for blocking the water outlet of the water outlet channel of the spraying head 4; the spray head 4 comprises a water outlet structure 41 and a blocking plate installation part 42, one end of the water outlet structure 41 is rotatably sleeved in the spray base 3 and is provided with a water outlet channel penetrating through two ends, one end of the blocking plate installation part 42 is integrally connected with the other end of the water outlet structure 41, and an installation cavity is formed in the blocking plate installation part; the sectional area of the mounting cavity is larger than that of the water outlet channel; the blocking plate 6 is arranged on a step surface 421 of the inner side wall at the other end of the blocking plate mounting part 42, and a connecting column 8 is fixed on one side facing the inside of the mounting cavity; the conical plug 9 is fixed at the other end of the connecting column 8. The surface of the limit ring 10 is uniformly provided with a plurality of through holes 101 for flowing liquid.
Furthermore, one end of the elastic connecting piece 7 is fixedly connected with the inner side of the limit ring 10, and the other end is fixedly connected with one side of the conical plug 9 facing the limit ring 10. The elastic connection 7 may be a spring or other elastic member.
Furthermore, an elastic cover 11 is sleeved on the outer side of the elastic connecting piece 7, one end of the elastic cover 11 is connected with the inner side of the limit ring 10 in a sealing manner, and the other end of the elastic cover is connected with one side, facing the limit ring 10, of the conical plug 9 in a sealing manner. When atomising head 4 sprays, come from the inside high pressure water of cylinder 1 can strike toper stopper 9, make its extrusion elastic connection spare 7 remove to the water direction of going out, make closure plate 6 remove to the water direction of going out simultaneously, form the clearance between closure plate 6 and the 4 top end faces of atomising head, make the water spout from the clearance, form water smoke, reach the effect of dust fall, when stopping spraying, toper stopper 9 resets under elastic connection spare 7's bounce effect, intercommunication closure plate 6 resets, make atomising head 4 and the side of intaking keep apart, and the laminating of the top end face of closure plate 6 and atomising head 4, avoid the delivery port to be blockked up. The elastic connecting piece 7 is protected by the elastic cover 11 with good flexibility, so that the elastic connecting piece is isolated from the water body, and the elastic connecting piece 7 can be prevented from being rusted due to long-term contact with the water body.
Further, a first groove 411 is formed in the outer surface of the joint of the water outlet structure 41 and the spraying base 3, a circular groove 31 is formed in the outer surface of the joint of the spraying base 3 and the water outlet structure 41, a second groove 311 is formed in the circular groove 31, and the first groove 49 is communicated with the second groove 311. The spray base 3 further comprises a first lobe 32 and a second lobe 33; first lamella body 32 and second lamella body 33 make up into the ring card and fix in inside annular groove 31, and the inboard of first lamella body 32 and second lamella body 33 all is provided with flange 322, and flange 322 inserts in first recess 49 and the second recess 311, and is connected with spraying base 3 and atomising head 4 mutually.
Furthermore, a threaded through hole 331 is formed in a contact portion between the second flap 33 and the first flap 32, the threaded through hole 331 faces the direction of the first flap 32, a threaded hole 322 is formed in a position of the first flap 32 corresponding to the threaded through hole 331, and the threaded through hole 331 and the threaded hole 322 are connected with the stud 34. First lamella body 32 and second lamella body 33 are firmly connected together through double-screw bolt 34, carry out spacing in to atomising head 4, can guarantee its free rotation again, because the outer end of double-screw bolt 34 is located the screw through-hole, the wearing and tearing of double-screw bolt 34 have been reduced, the outer terminal surface of connecting stud 34 sets to interior hexagon recess or other use spanner or screwdriver of being convenient for and dismantles simultaneously, the shape of screwing up, make the installation of atomising head 4, it is more convenient to dismantle, be convenient for to damage the timely change of atomising head 4.
Furthermore, the inclination direction of the spraying base 3 is opposite to that of the cutting tooth 2, and the distance from the top of the spraying head 4 to the roller 1 is smaller than that from the top of the cutting tooth 2 to the roller 1, so that when the roller 1 rotates to cut a coal body, the direct front impact between the water outlet of the spraying head 4 and the coal and rock can be avoided, and the effect of protecting the spraying head 4 is achieved.
The working principle is as follows:
when the spray head is used, the bottom end of the spray head 4 is inserted into the inner cavity of the spray base 3, the first flap body 32 and the second flap body 33 are clamped in the circular arc-shaped groove 31 on the periphery of the spray base 3 respectively, the flanges 321 of the first flap body 32 and the second flap body 33 are inserted into the second groove 311 and the first groove 411, and the first flap body 32 and the second flap body 33 are firmly connected together through the studs 34, so that the spray head 4 is limited, free rotation of the spray head 4 can be guaranteed, the spray head 4 is convenient to mount and dismount, and timely replacement of the damaged spray head 4 is facilitated; when the spray head 4 sprays, high-pressure water from the interior of the roller 1 impacts the conical plug 9 to enable the conical plug to extrude the elastic connecting piece 7 to move towards the water outlet direction, so that the blocking plate 6 moves towards the water outlet direction, a gap is formed between the blocking plate 6 and the end face of the top end of the spray head 4, the water is sprayed out of the gap to form water mist, and the dust falling effect is achieved; when stopping spraying, toper stopper 9 resets under the bounce effect of elastic connection piece 7, and closure plate 6 also resets thereupon, makes atomising head 4 and the side isolation of intaking, and closure plate 6 and the laminating of the top terminal surface of atomising head 4 avoid the delivery port to be blockked up.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a spraying device in coal-winning machine sets up the cylinder on the coal-winning machine, set up a plurality of picks on the cylinder, spraying device is fixed in the outside of cylinder, its characterized in that includes: the spray base, the spray head, the blocking plate and the elastic connecting piece are arranged on the spray base; the spraying base is obliquely fixed on the outer portion of the roller and is arranged between every two adjacent cutting teeth, the end portion of the spraying head is rotatably sleeved inside the spraying base, inner cavities of the spraying base and the spraying head are communicated with a spraying pipeline inside the roller, a step surface is arranged on the inner side wall of the water outlet end of the spraying head, and the blocking plate is arranged at the water outlet end of the spraying head and is in lap joint with the step surface; one end of the elastic connecting piece is fixed on the inner side of the blocking plate, and the other end of the elastic connecting piece is fixedly connected with the inner cavity of the atomizing spray head.
2. The inner spray device of a coal mining machine according to claim 1, characterized in that an annular stop for receiving impact is fixed at the edge of the water outlet end of the spray head.
3. The inner spray device of claim 1, further comprising a conical plug for plugging the outlet of the sprayhead outlet passage;
the spray head comprises a water outlet structure and a blocking plate mounting part, one end of the water outlet structure is rotatably sleeved in the spray base and is provided with a water outlet channel penetrating through two ends, one end of the blocking plate mounting part is integrally connected with the other end of the water outlet structure, and a mounting cavity is formed in the blocking plate mounting part;
the blocking plate is arranged on the step surface of the inner side wall of the other end of the blocking plate mounting part, and a connecting column is fixed on one side facing the inside of the mounting cavity; the conical plug is fixed at the other end of the connecting column.
4. The inner spray device of a coal mining machine according to claim 3, further comprising a limiting ring for limiting the blocking plate; the outward flange of spacing ring with the installation intracavity wall fixed connection of closure plate installation department, the spliced pole is arranged in just be in the ring of spacing ring the flexible removal in the spacing ring.
5. The inner spraying device of the coal mining machine according to claim 4, wherein a plurality of through holes for liquid circulation are uniformly formed in the surface of the limiting ring.
6. The spraying device in the coal mining machine according to claim 4 or 5, characterized in that one end of the elastic connecting piece is fixedly connected with the inner side of the limiting ring, and the other end of the elastic connecting piece is fixedly connected with one side of the conical plug, which faces the limiting ring.
7. The spraying device in the coal mining machine according to claim 6, characterized in that an elastic cover is sleeved on the outer side of the elastic connecting piece, one end of the elastic cover is connected with the inner side of a limiting ring in a sealing mode, and the other end of the elastic cover is connected with one side, facing the limiting ring, of the conical plug in a sealing mode.
8. The inner spraying device of the coal mining machine according to claim 3, wherein a first groove is formed in the outer surface of the joint of the water outlet structure and the spraying base, a circular groove is formed in the outer surface of the joint of the spraying base and the water outlet structure, a second groove is formed in the circular groove, and the first groove is communicated with the second groove;
the spray base further comprises a first petal body and a second petal body; the first petal body and the second petal body are combined into a circular ring which is clamped in the circular ring groove, flanges are arranged on the inner sides of the first petal body and the second petal body, and the flanges are inserted into the first groove and the second groove and are clamped with the spraying base and the spraying head.
9. The spraying device in the coal mining machine according to claim 8, characterized in that a threaded through hole is formed in a contact part of the second petal body and the first petal body, the threaded through hole faces the direction of the first petal body, a threaded hole is formed in a position of the first petal body corresponding to the threaded through hole, and the threaded through hole and the threaded hole are internally connected with a stud.
10. The inner spray apparatus of claim 1, wherein the spray base is inclined in a direction opposite to the pick, and the distance from the tip of the spray head to the drum is less than the distance from the tip of the pick to the drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920158861.0U CN209924988U (en) | 2019-01-30 | 2019-01-30 | Spraying device in coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920158861.0U CN209924988U (en) | 2019-01-30 | 2019-01-30 | Spraying device in coal mining machine |
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| Publication Number | Publication Date |
|---|---|
| CN209924988U true CN209924988U (en) | 2020-01-10 |
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ID=69067844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920158861.0U Active CN209924988U (en) | 2019-01-30 | 2019-01-30 | Spraying device in coal mining machine |
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| Country | Link |
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| CN (1) | CN209924988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812266A (en) * | 2019-01-30 | 2019-05-28 | 河北工程大学 | A kind of inner spraying device for coal cutter |
-
2019
- 2019-01-30 CN CN201920158861.0U patent/CN209924988U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812266A (en) * | 2019-01-30 | 2019-05-28 | 河北工程大学 | A kind of inner spraying device for coal cutter |
| CN109812266B (en) * | 2019-01-30 | 2024-06-04 | 河北工程大学 | Spraying device in coal mining machine |
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