CN202300403U

CN202300403U - Internal spraying device with adjustable injection range for coal mining machine

Info

Publication number: CN202300403U
Application number: CN201120335351XU
Authority: CN
Inventors: 章立强; 周常飞; 黄秋来; 徐文锋; 陶嵘; 史春祥
Original assignee: Tiandi Shanghai Mining Equipment Technology Co Ltd; Tiandi Science and Technology Co Ltd Shanghai Branch
Current assignee: Tiandi Shanghai Mining Equipment Technology Co Ltd; Tiandi Science and Technology Co Ltd Shanghai Branch
Priority date: 2011-09-08
Filing date: 2011-09-08
Publication date: 2012-07-04
Anticipated expiration: 2021-09-08

Abstract

The utility model discloses an internal spraying device with an adjustable injection range for a coal mining machine, which is mainly used for solving the technical problems of dust removing and the like. According to the adopted technical scheme, the device is provided with a positioning toggle assembly, wherein the positioning toggle assembly is connected with the water inlet end of a water pipe assembly and a positioning hole of a roller bearing seat respectively; a water reversing disk is fixedly arranged at the water outlet end of the water pipe assembly; and an arc-shaped reversing water groove of the disk is communicated with a gland water hole group of a water flow gland of a roller. The internal spraying device is suitable for various roller type coal mining machines.

Description

The adjustable inner sprayer unit of coal-winning machine spray regime

Technical field:

The utility model relates to a kind of relevant slotting or mineral is fallen from other part of the machinery of ore bed, particularly a kind of equipment that prevents to produce or remove mine dust fully.

Background technology:

Existing coal-winning machine is the broken coal seam of the pick coal breakage with cylinder, and its output fine coal rate is high, and coal dust is big; Coal dust is serious explosive source in mine, is the pneumoconiosis pathogeny again, and is very harmful; To this, the dealer adopts on the cylinder of depositing dust and the internal spraying technical scheme is set, the inner sprayer unit of the JOY-7LSIA type coal-winning machine of its typical structure such as the U.S.; This device includes water system, flexible pipe, water pipe head, water pipe, crosses the hydraulic pressure lid, crosses water hole and nozzle on water ring, the barrel; This water system infeeds water pipe through flexible pipe and water pipe head with mine water, and this water pipe is fixed on the bearing support of cylinder, and the water side of water pipe is laid with one group radially water hole (being 360 ° is uniformly distributed with); This radially is communicated with the interior tank of crossing the hydraulic pressure lid in the water hole; Cross the interior tank of hydraulic pressure lid and be communicated with one group of radial water hole (being 360 ° is uniformly distributed with), same and this radial water hole of organizing radial water hole correspondence was separately positioned on water ring and barrel, and the radial water hole on each barrel is communicated with a part of nozzle; The spout of this nozzle is corresponding one by one each pick that is arranged on the cylinder blade; Above-mentionedly cross the hydraulic pressure lid, cross that water ring all is fixed on barrel and with the barrel rotation, water from water pipe through each radial water hole from the nozzle radial needle to the ejection of cut tooth, realize its depositing dust function.

In the actual drum cut running; With the tube that rolls left is example, and the left surface of this cylinder contacts in the cut tooth cut process of coal seam wall portion to coal seam wall portion on the cylinder; Produce cut and produce dirt district and float coal airborne dust district; These two sections are no more than 260 ° usually on roll circumference, and above-mentioned existing coal-winning machine inner sprayer unit is to go up subtend cut tooth water spray in whole circumference (360 °), and promptly its water of nearly 1/3 is to be sprayed on non-cut to produce dirt district and float coal airborne dust district; Not only unhelpful to depositing dust, and cause the waste of water resource; Simultaneously; Under the condition of a certain amount of water supply, all less in the spraying hydraulic pressure and the water yield of each nozzle delivery port of 360 ° of water sprays of roll circumference, weakened the dust-laying effect of inner sprayer unit; Each nozzle also appears simultaneously in actual use often by the coal dust clogging; And further weakening the depositing dust function of inner sprayer unit, above-mentioned situation exists on right cylinder equally.

Because existing internal spraying weak effect; The coal-face Dust Capacity is still very big; The dealer also has auxiliary depositing dust of the external spraying of employing or machine to assist technical schemes such as depositing dust outward, but the dust of diffusion can fly upward along with the distinguished and admirable of work plane, still can't obtain dust-laying effect timely and effectively.

The utility model content:

The utility model technical problem to be solved is: provide a kind of improved coal-winning machine spray regime adjustable inner sprayer unit; Under certain output condition; It can increase the discharge and the pressure head of cylinder cut district and each nozzle of airborne dust district, reduces the possibility of spray nozzle clogging, improves the dust-laying effect of device; That installs is simple in structure, easy to operate.

The technical scheme that the utility model solves the problems of the technologies described above employing is:

The adjustable inner sprayer unit of coal-winning machine spray regime includes water system, flexible pipe, water pipe head, conduit assembly, crosses the hydraulic pressure lid, crosses water ring, cylinder and nozzle; This water system is communicated with the water inlet end of conduit assembly through flexible pipe and water pipe head; Hydraulic pressure lid water hole group is passed through in the water side of this conduit assembly, water ring water hole group, square body water hole group and cylinder water hole group are communicated with the nozzle that is fixedly arranged on cylinder blade and each cut tooth of subtend excessively; Be characterized in: this device has a location toggle assembly; This location toggle assembly is connected with the water inlet end of conduit assembly and the locating hole of drum shaft bearing respectively; The water side of this conduit assembly is installed with a water commutation board, and the arc switching-over tank of this water commutation board is communicated with the gland water hole group of crossing the hydraulic pressure lid of cylinder.The convertible water commutation board that is fixedly arranged on conduit assembly of location toggle assembly of device roll left the relatively tube or the position of right cylinder; The arc of the water commutation board after conversion switching-over tank be able to the subtend rotation a left side or the cut of right cylinder produce dirt district and float coal airborne dust district, each nozzle only produces the dirt district to the cut of cylinder to the left or to the right and float coal airborne dust district sprays water on the cylinder.

The utility model is with the combination of location toggle and water commutation board; Change the defective mode that has now at cylinder full circle week 360 ° of water sprays, can change the spray regime of internal spraying according to the different cuts district of left and right cylinder; The cut that makes limited output all be injected in cylinder produces dirt district and float coal airborne dust district; Not only obviously improve the dust-laying effect of device, and can increase the discharge and the pressure head of each nozzle, reduce each spray nozzle clogging; Because toggle and water commutation board are simple in structure, handled easily can improve device operating efficiency and economic benefit greatly in real time.

Description of drawings:

Fig. 1 is that the adjustable inner sprayer unit vertical profile of the utility model coal-winning machine spray regime is looked sketch map.

Fig. 2 is an A-A cross-sectional schematic among Fig. 1.

Fig. 3 is a conduit assembly water inlet end enlarged diagram among Fig. 1.

Fig. 4 is a conduit assembly water side enlarged diagram among Fig. 1.

Fig. 5 be among Fig. 1 B to view (one).

Fig. 6 is the corresponding water commutation board cross-sectional schematic of Fig. 5 (tube or the right cylinder left side cutting rib position of rolling left).

Fig. 7 be among Fig. 1 B to view (two).

Fig. 8 is the corresponding water commutation board cross-sectional schematic of Fig. 7 (tube or the right cylinder right side cutting rib position of rolling left).

The specific embodiment:

Include water system, flexible pipe, water pipe head, location toggle assembly 1, conduit assembly 2, nozzle 3, cylinder 4 and water commutation board 5 with reference to Fig. 1, the adjustable inner sprayer unit of 2 coal-winning machine spray regimes, water system, flexible pipe and water pipe head are equal and prior art is same or similar.

Location toggle assembly 1, as shown in Figure 3, be the utility model its specific structure, include lining 11, spring 12, alignment pin 13, location toggle 14 and pressing plate 15; Wherein:

Lining 11; It is a sleeve-like member; Its external cylindrical surface can be located in the bush hole 25 of the pipe end flange 21 of conduit assembly 2 water inlet ends, and lining 11 end flange are embedded at the axial location of the pit formation lining 11 of bush hole 25, and lining 11 bottoms have the through hole of the alignment pin 13 that can stretch through;

Spring 12; It is helical spring commonly used; Spring 12 is to be set in lining 11 inner chambers, and the one of which end holds in the bottom of lining 11, and its other end is to hold on the shaft shoulder of alignment pin 13; The function of spring 12 is last locating hole 451 or the following locating holes 452 that alignment pin 13 promoted to insert cylinder 4 bearing supports 45, with the spray regime of guaranteeing to set;

Alignment pin 13 is bearing pins of a syllogic, and big footpath section and lining 11 endoporus are and are slidingly matched and can stretch into upper and lower locating hole 451,452, i.e. the last locating hole 451 of the big footpath section of alignment pin 13 and cylinder 4 bearings 45 locating holes or following locating hole 452 corresponding matching; In footpath section can sheathed spring 12, but the path section is to stretch through bottom outlet and the rivet clasp of lining 11 in the bottom of location toggle 14;

Location toggle 14; Be one to be convenient to the awl cylinder that hand is dialled; Its endoporus is stretched the external cylindrical surface that is provided with lining 11 and is and is slidingly matched, and its bottom centre offers path section and the rivet clasp of through hole in order to the alignment pin 13 that stretches through, when location toggle 14 draws outside lining 11; Drive the alignment pin 13 of rivet clasp and compress spring 12; Alignment pin 13 with outside move and can break away from or following locating hole 451,452, otherwise location toggle 14 can drive conduit assembly 2 from last locating hole 451 be converted to down locating hole 452 or, the spray regime of adjusting nozzle 3 is to adapt to the different demands of left and right cylinder;

Pressing plate 15; Like Fig. 5, shown in 7, be an arc plate body, to be bolted on cylinder 4 bearing supports 45; The space that the groove 453 of pressing plate 15 and bearing support 45 constitutes the pipe end flange 21 of ccontaining conduit assembly 2 is and is slidingly matched, and keeps the axial location of pipe end flange 21.

Conduit assembly 2 includes pipe end flange 21, pore 22, body 23, fore bearing 24, bush hole 25 and the rear bearing 26 of turnover water end (W.E.); Like Fig. 3, shown in 4; These conduit assembly 2 water inlet ends are provided with fore bearing 24, and these conduit assembly 2 water sides are provided with rear bearing 26.Wherein:

Pipe end flange 21, the groove 453 of its cylindrical and cylinder 4 bearing supports 45 are and are slidingly matched; Be formed with an extended portion in the one of which side, offer the bush hole 25 of band pit in this projection office, in order to mounting bush 11;

Pore 22 is body 23 endoporus, and seals at the water inlet end of body 23, and pore 22 is opening-like in the water side of body 23;

Body 23; Be provided with fore bearing 24 at its water inlet end; Be provided with rear bearing 26 in its water side; The permanent position state of body 23 when guaranteeing cylinder 4 rotation is formed with two fixing fixture blocks 231 (like Fig. 4) in opening 232 appropriate positions of body 23 water sides, this fixedly fixture block 231 be able to water commutation board 5 inlay cards be fixed on the end of body 23; The opening 232 of body 23 is communicated with the groove 53 of water commutation boards 5, constitutes the water channel of the pore 22 of body 23, is provided with the sealing device of cylinder 5 in case supply water and sew at the rear side of opening 232.

Nozzle 3; Himself structure and arrangement thereof are known technology; Each nozzle 3 is fixing along cylinder blade (shape in the shape of a spiral), and its spout is a subtend cut tooth, and the import of each nozzle 3 is to connect a cylinder water hole; From axial view (like Fig. 2,6,8), each nozzle 3 evenly distributes in 360 ° of scopes of cylinder 4 circumference; Existing inner sprayer unit is all sprayed water by each nozzle of above-mentioned arrangement mode, promptly in 360 ° of scopes of roll circumference, all sprays water; The utility model adopts water commutation board 5 in arc changes tank 55 scopes, to supply water to nozzle 3, and nozzle 3 spray field on roll circumference can be reduced to and be not more than 260 ° usually.

Cylinder 4; Its basic structure and prior art are same or similar, include hydraulic pressure lid 41, cross water ring 42, cylinder side's body 43, barrel 44 and bearing support 45, like Fig. 1, shown in 2; Cross the member that hydraulic pressure lid 41 is cylinder 4 and conduit assembly 2 and water commutation board 5 adjacency; Its front end is provided with rear bearing 26 and sealing device, and the sealing device guarantees the sealing of conduit assembly 2 water sides and water commutation board 5, crosses hydraulic pressure and covers 41 and evenly be laid with gland water hole group 410 on the inner ring surface whole circumference of contact with water commutation board 5 in opposite directions; This gland water hole group 410 is being crossed on the hydraulic pressure lid 41 radially, and the quantity of the nozzle 3 that sets firmly on the quantity in its hole and the cylinder 4 is identical; The group 420 of water ring water hole excessively of crossing water ring 42 and cylinder side's body 43 is all corresponding identical with gland water hole group 410 with square body water hole group 430; The cylinder water hole group 440 of barrel 44 be along drum shaft to evenly being laid on the barrel 44, its hole count is identical with gland water hole group 410 quantity, the through hole of each cylinder water hole group 440 is connected in the import of a corresponding nozzle 3; Above-mentioned gland water hole group 410, mistake water ring water hole group 420, square body water hole group 430 and cylinder water hole group 440 are communicated with mutually;

The bearing support 45 of cylinder 4 is supporting members of idler pulley 4 trains rotation; Its structure and prior art are same or similar; Bearing support 45 design features of the utility model are the locating holes that is provided with and locatees toggle assembly 1 correspondence, and the locating hole of bearing support 45 includes locating hole 451 and following locating hole 452, like Fig. 5, shown in 7; The center line angle β of common upward locating hole 451 and following locating hole 452=100 ° to 150 °, promptly the β value is not more than 150 °; The arc subtended angle α value of the switching-over tank 55 of this β value and water commutation board 5 is corresponding, after promptly upper and lower locating hole 451,452 conversion, be able to guarantee that spray field produces dirt district and float coal airborne dust district at the cut of a left side or right cylinder.

Water commutation board 5; As shown in Figure 4; Include disk body 51, holddown groove 52, groove 53, water-guiding hole group 54 and switching-over tank 55, the hydraulic pressure of crossing that the cylindrical of this disk body 51 is sliding combined with cylinder 4 covers 41 endoporus, and these disk body 51 centers have the fixing holddown groove 52 of the fixedly fixture block 231 of conduit assembly 2 bodys 23; This holddown groove 52 is in order to the fixedly fixedly fixture block 231 of conduit assembly 2 bodys 23 that stretches through; The space that groove 53 on this disk body 51 constitutes be able to be communicated with the opening 232 of conduit assembly 2 bodys 23, offers arc switching-over tank 55 in disk body 51 external cylindrical surface appropriate positions, and promptly the arc length of this arc switching-over tank 55 is less than circumferential length; This groove 53 is along circumferentially being laid with water-guiding hole group 54; Particularly, between switching-over tank 55 and groove 53, be provided with the water-guiding hole group 54 that lay at even interval, above-mentioned water-guiding hole group 54 is communicated with this arc switching-over tank 55; These arc switching-over tank 55 correspondences are communicated with the special angle water hole that cylinder 4 is crossed the gland water hole group 410 of hydraulic pressure lid 41;

Said arc switching-over tank 55 is one of adjustable key structures of the utility model spray regime; Like Fig. 1,4,6, shown in 8; Normally 260 ° to 210 ° of the arc arc angle α of this arc switching-over tank 55 on disk body 51 circumference; Be that arc subtended angle α is not more than 260 °, the cut of this value and cylinder 4 produces the dirt district and float coal airborne dust district is corresponding each other; This water-guiding hole group 54 is evenly to lay along the full section of arc of switching-over tank 55, and each water-guiding hole aperture should make total latus rectum of water-guiding hole group 54 identical with the latus rectum of conduit assembly 2 pores 22; The corresponding relation of Fig. 5,6,7,8 expression arc switching-over tanks 55 and locating hole; The alignment pin 13 of described location toggle assembly 1 is positioned at the following locating hole 452 of cylinder 4 bearing supports 45; Like Fig. 5,6, the groove left end 551 of corresponding water commutation board 5 arcs switching-over tank 55 is positioned at the highest order of water commutation board 5, and promptly the rib position is cut in a left side or right cylinder 4 left sides usually; Arc switching-over tank 55 just produces dirt district and float coal airborne dust district to the cut of a left side or right cylinder 4, and each nozzle 3 spray field is just in effective depositing dust district; The alignment pin 13 of this location toggle assembly 1 is positioned at the last locating hole 451 of cylinder 4 bearing supports 45; Like Fig. 7,8; The groove right-hand member 552 of corresponding water commutation board 5 arcs switching-over tank 55 is positioned at the highest order of water commutation board 5; Be a common left side or right cylinder 4 right sides cutting rib position, arc switching-over tank 55 just to left or the cut of right cylinder 4 produce dirt district and float coal airborne dust district, each nozzle 3 spray field is just in effective depositing dust district.

During operation, according to the demands of different of left and right cylinder 4, the operator can mention the location toggle 14 of location toggle assembly 1 like a cork; Alignment pin 13 breaks away from locating hole thereupon, and the swinging head end flanges 21 again, can water commutation board 5 be positioned at a left side or the required depositing dust position of right cylinder; Decontrol location toggle 14 then, alignment pin 13 can insert or following locating hole 451,452, accomplishes spray regime and regulates; Operation can be carried out in real time, improves the coal-winning machine operating efficiency greatly.

Claims

1. adjustable inner sprayer unit of coal-winning machine spray regime; This device includes water system, flexible pipe, water pipe head, conduit assembly, crosses the hydraulic pressure lid, crosses water ring, cylinder and nozzle; This water system is communicated with the water inlet end of conduit assembly through flexible pipe and water pipe head; Hydraulic pressure lid water hole group is passed through in the water side of this conduit assembly, water ring water hole group, square body water hole group and cylinder water hole group are communicated with the nozzle that is fixedly arranged on cylinder blade and each cut tooth of subtend excessively; It is characterized in that: this device has a location toggle assembly (1); This location toggle assembly (1) is connected with the water inlet end of conduit assembly (2) and the locating hole of cylinder (4) bearing support (45) respectively; The water side of this conduit assembly (2) is installed with a water commutation board (5), and the arc switching-over tank (55) of this water commutation board (5) is communicated with the gland water hole group (410) of crossing hydraulic pressure lid (41) of cylinder (4).

2. the adjustable inner sprayer unit of coal-winning machine spray regime according to claim 1; It is characterized in that described location toggle assembly (1) includes lining (11), spring (12), alignment pin (13), location toggle (14) and pressing plate (15); In the bush hole (25) of the pipe end flange (21) of conduit assembly (2) water inlet end, be installed with lining (11); Has a spring (12) in the lining (11); This spring one end has held lining (11) other end and has held alignment pin (13); The last locating hole (451) of big footpath section of this alignment pin (1 3) and cylinder (4) bearing support (45) locating hole or following locating hole (452) corresponding matching, the path section of this alignment pin (13) is fixed with location toggle (14), and this location toggle (14) endoporus is stretched and is provided with lining (11) and is and is slidingly matched; This pressing plate (15) is fixedly arranged on bearing support (45), is equipped with pipe end flange (21) in the groove (453) of pressing plate (15) and bearing support (45) and is and is slidingly matched.

3. the adjustable inner sprayer unit of coal-winning machine spray regime according to claim 1 is characterized in that the last locating hole (451) of cylinder (4) bearing support (45) locating hole and the center line angle β value of following locating hole (452) are not more than 1 50 °.

4. the adjustable inner sprayer unit of coal-winning machine spray regime according to claim 1 is characterized in that this conduit assembly (2) water inlet end is provided with fore bearing (24), and this conduit assembly (2) water side is provided with rear bearing (26).

5. the adjustable inner sprayer unit of coal-winning machine spray regime according to claim 1; It is characterized in that this water commutation board (5) includes disk body (51), holddown groove (52), groove (53), water-guiding hole group (54) and switching-over tank (55); The hydraulic pressure of crossing that the cylindrical of this disk body (51) is sliding combined with cylinder (4) covers (41) endoporus; This disk body (51) center has the fixedly holddown groove (52) of the fixedly fixture block (231) of conduit assembly (2) body (23); This groove (53) is communicated with the opening (232) of conduit assembly (2) body (23), and this groove (53) is along circumferentially being laid with water-guiding hole group (54), and this water-guiding hole group (54) is communicated with arc switching-over tank (55).

6. according to claim 1 or the adjustable inner sprayer unit of 5 described coal-winning machine spray regimes; It is characterized in that the arc subtended angle α of this arc switching-over tank (55) on disk body (51) circumference is not more than 260 °, the full section of the arc of edge switching-over tank (55) evenly is laid with water-guiding hole group (54).

7. the adjustable inner sprayer unit of coal-winning machine spray regime according to claim 1; The groove left end (551) that the alignment pin (13) that it is characterized in that this location toggle assembly (1) is positioned at corresponding water commutation board (5) the arc switching-over tank (55) of the following locating hole (452) of cylinder (4) bearing support (45) is positioned at the highest order of water commutation board (5), and the commutate groove right-hand member (552) of tank (55) of the water commutation board (5) that the alignment pin (13) of this location toggle assembly (1) is positioned at last locating hole (451) correspondence of cylinder (4) bearing support (45) is positioned at the highest order of water commutation board (5).