Coal mining machine spiral drum based on integral casting and coal mining machine

Abstract

The utility model discloses a coal mining machine spiral drum based on integral casting and a coal mining machine, the coal mining machine spiral drum comprises a drum body, a drum end disc is arranged on the outer side of the end part of the drum body, a plurality of spiral blades are arranged on the outer side of the drum body at equal intervals in a spiral mode, and a plurality of spiral blades are arranged on the outer side of the drum body. The multiple spraying tooth holders are evenly arranged on the outer side of the roller end disc and the outer side of the spiral blade, each spraying tooth holder is provided with one roller cutting assembly, and each spraying tooth holder is provided with a spraying cooling water channel assembly. The tapered curved surface spiral blade, the integrated spraying tooth holder and the hub type roller end disc are adopted, when the roller is used, the roller cutting assembly on the periphery of the end of the roller body and on the outer side of the spiral blade is used for coal mining, and the mined coal is spirally conveyed and charged through the spiral blade of the tapered curved surface structure; and the coal loading efficiency of the spiral drum of the coal mining machine and the coal mining efficiency are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coal mining equipment technical field, concretely relates to a spiral drum of coal winning machine based on integral casting and coal winning machine. BACKGROUND

[0002] In recent years along with the increase of coal mining intensity, the structure performance of coal winning machine is day by day perfect, and the power of coal winning machine is increasing, in order to adapt to the efficient mining of present coal mine production, the requirement of coal winning machine drum is also increasing, therefore improving the comprehensive performance of coal winning machine spiral drum, especially improving the coal loading rate of small drum becomes a vital problem.

[0003] At present, the structure of the spiral drum of the coal winning machine is basically fixed, and the drum blade width is limited, especially when the working face has a negative angle and the working face has a large strike angle, the drum has a serious coal loading problem.

[0004] In the actual coal seam working face use process, it is found that the coal dust powder from the tail of the drum blade is limited, a small part is extruded under the coal winning machine rocker arm and slides to the scraper, and a part falls to the bottom of the drum with the blade, and the circulating coal appears, which seriously affects the coal loading efficiency.

[0005] Therefore, we propose a spiral drum of coal winning machine based on integral casting and coal winning machine. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a spiral drum of coal winning machine based on integral casting and coal winning machine to solve the problems in the background art.

[0007] To achieve the above object, the utility model provides the following technical scheme: a spiral drum of coal winning machine based on integral casting, comprising:

[0008] A drum body;

[0009] A drum end disc is arranged outside the end of the drum body;

[0010] A plurality of spiral blades are arranged outside the drum body at equal intervals in a spiral manner;

[0011] A plurality of spray tooth seats are uniformly arranged outside the drum end disc and the spiral blades;

[0012] A plurality of drum cutting assemblies are arranged, and each spray tooth seat is provided with one drum cutting assembly;

[0013] And each of the spray tooth seat is provided with a spray cooling water channel assembly.

[0014] Preferably, the end of the drum cylinder is internally provided with a drum connecting flange and a drum end cover.

[0015] The drum cylinder is mounted on the coal mining machine through the drum connecting flange.

[0016] Preferably, the drum cylinder, the drum end disc, the spiral blade and the spray tooth seat are integrally cast structures.

[0017] Preferably, the drum end disc is a hub type drum end disc.

[0018] Preferably, the spiral blade is a gradually changing curved surface spiral blade, and one end of the spiral blade is connected with the drum end disc.

[0019] Preferably, the number of the spiral blade is calculated according to the formula (A):

[0020] (A)

[0021] Wherein, L represents the lead of the spiral blade;

[0022] Z represents the number of the spiral blade;

[0023] D represents the outer diameter of the spiral blade;

[0024] d represents the inner diameter of the spiral blade;

[0025] K represents a relationship coefficient, which is between 0.8-1.5 according to the increase of the outer diameter D of the spiral blade.

[0026] Preferably, the lead angle of the spiral blade is calculated according to the formula (B):

[0027] (B)

[0028] Wherein, L represents the lead of the spiral blade;

[0029] α represents the lead angle of the spiral blade;

[0030] D represents the outer diameter of the drum spiral blade.

[0031] Preferably, the drum cutting assembly comprises a tooth shoe and a cutting tooth.

[0032] The tooth shoe is arranged on the spray tooth seat, and the cutting tooth is arranged on the tooth shoe.

[0033] Preferably, the spray cooling water channel assembly comprises a spray nozzle and a cooling water channel.

[0034] The spray nozzle is arranged on the spray tooth seat, and the cooling water channel is arranged in the drum end disc and the spiral blade.

[0035] A coal mining machine comprises the integral cast spiral drum of the coal mining machine.

[0036] Compared with the prior art, the coal mining machine has the advantages that:

[0037] 1. The gradual change type curved spiral blade, the integral spray tooth seat and the hub type drum end disc are used in the utility model, in use, the drum cutting assembly on the outer periphery of the drum cylinder end portion and the outer side of the spiral blade is used for coal mining, the mined coal is spirally conveyed and loaded by the gradual change type curved spiral blade, and the coal loading efficiency and the coal mining efficiency of the coal mining machine spiral drum are greatly improved.

[0038] 2. The drum cylinder, the drum end disc, the spiral blade and the spray tooth seat are integrally cast by using high-strength FLK-100 cast steel material, the structural strength of the coal mining machine spiral drum is greatly improved, compared with the assembly, the compression type and the welding structure of the traditional coal mining machine spiral drum, the processing and manufacturing period and the difficulty of the coal mining machine spiral drum are shortened.

[0039] 3. The utility model is provided with the drum cooling water channel assembly, in the coal mining process of the coal mining machine spiral drum, the cooling water enters the spray nozzle on the spray tooth seat through the cooling water channel and is sprayed out through the spray nozzle, the cutting track of the drum cutting assembly is cooled and dusted, and the cooling efficiency of the drum cylinder 1 and the drum cutting assembly is improved. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is an overall three-dimensional structure schematic view of the utility model;

[0041] Figure 2 It is a side view structure schematic view of the utility model;

[0042] Figure 3 It is a side view sectional structure schematic view of the utility model;

[0043] Figure 4 It is a top view structure schematic view of the utility model;

[0044] Figure 5 It is a top view sectional structure schematic view of the utility model.

[0045] In the figure: 1, drum barrel; 2, drum end disc; 3, spiral blade; 4, spray tooth seat; 5, drum cutting assembly; 501, tooth shoe; 502, cutting tooth; 6, spray cooling water channel assembly; 601, spray nozzle; 602, cooling water channel; 7, drum connecting flange; 8, drum end cover. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0047] Please refer to Figures 1-5 The utility model provides a spiral drum of coal winning machine based on integral casting, which comprises:

[0048] The drum barrel 1 is internally provided with a drum connecting flange 7 and a drum end cover 8 at the end thereof; the drum barrel 1 is installed on the coal winning machine through the drum connecting flange 7;

[0049] The drum end disc 2 is arranged outside the end of the drum barrel 1, and the drum end disc 2 is a hub type drum end disc;

[0050] The spiral blade 3 is provided with a plurality of spiral blades 3 which are arranged outside the drum barrel 1 at equal intervals in a spiral manner; the spiral blade 3 is a gradually changing curved surface spiral blade, and one end of the spiral blade 3 is connected with the drum end disc 2;

[0051] The spray tooth seat 4 is provided with a plurality of spray tooth seats 4 which are uniformly arranged outside the drum end disc 2 and the spiral blade 3;

[0052] The drum barrel 1, the drum end disc 2, the spiral blade 3 and the spray tooth seat 4 are of an integral casting structure;

[0053] In the utility model, the drum barrel 1, the drum end disc 2, the spiral blade 3 and the spray tooth seat 4 are of an integral casting structure, and are integrally cast by using high-strength FLK-100 cast steel material, so that the structural strength of the spiral drum of the coal winning machine is greatly enhanced; compared with the assembling, pressing and welding structure of the conventional spiral drum of the coal winning machine, the processing and manufacturing period and difficulty of the spiral drum of the coal winning machine are shortened;

[0054] The drum cutting assembly 5 is provided with a plurality of drum cutting assemblies 5, each spray tooth seat 4 is provided with one drum cutting assembly 5, and the drum cutting assembly 5 comprises a tooth shoe 501 and a cutting tooth 502; the tooth shoe 501 is arranged on the spray tooth seat 4, and the cutting tooth 502 is arranged on the tooth shoe 501;

[0055] The utility model discloses a gradually changing type curved surface spiral blade, an integral type spray tooth seat and a wheel hub type drum end disc are used, when using, the drum cutting assembly 5 of the outer periphery of the drum cylinder 1 end portion and the spiral blade 3 outside carries out coal mining, and the coal material of mining is spirally conveyed and loaded by the spiral blade 3 of gradually changing type curved surface structure, greatly improves the coal loading efficiency of coal mining machine spiral drum and coal mining efficiency,

[0056] And each spray tooth seat 4 is provided with spray cooling water channel assembly 6, and the spray cooling water channel assembly 6 includes spray nozzle 601 and cooling water channel 602;Spray nozzle 601 is arranged on spray tooth seat 4, and the inside of drum end disc 2 and spiral blade 3 is provided with cooling water channel 602 communicated with spray nozzle 601;

[0057] The utility model discloses a drum cooling water channel assembly 6, in the coal mining process of coal mining machine spiral drum, cooling water passes through cooling water channel 602 and enters spray nozzle 601 in spray tooth seat 4, and is sprayed out through spray nozzle 601, and the cutting track of drum cutting assembly 5 is cooled and dusted, improves the cooling efficiency of drum cylinder 1 and drum cutting assembly 5.

[0058] In the embodiment, the number of spiral blades 3 is calculated as shown in formula (A):

[0059] (A)

[0060] Wherein, L represents the lead of spiral blade;

[0061] Z represents the number of spiral blades;

[0062] D represents the outer diameter of spiral blade;

[0063] D represents the outer diameter of spiral blade;

[0064] K represents the relationship coefficient, according to the increase of the outer diameter D of spiral blade, K is between 0.8-1.5;

[0065] The number of spiral blades is usually designed as 3, 4.

[0066] In the embodiment, the lead angle of spiral blade 3 is calculated as shown in formula (B):

[0067] (B)

[0068] Wherein, L represents the lead of spiral blade;

[0069] α represents the lead angle of spiral blade;

[0070] D represents the outer diameter of spiral blade;

[0071] The helical blade pitch angle is generally between 16-25 degrees, which is beneficial to the discharge of the cinder.

[0072] The coal mining machine provided by the embodiment comprises a helical drum of the coal mining machine based on integral casting, and the coal loading efficiency and the coal mining efficiency of the coal mining machine are improved.

[0073] In summary, the use method of the helical drum of the coal mining machine based on integral casting provided by the embodiment is as follows: in use, the drum cutting assembly 5 at the outer periphery of the one end of the drum cylinder 1 and the outer side of the helical blade 3 is used for coal mining, the mined coal is helically conveyed and loaded by the helical blade 3 with the gradually changing curved surface structure, the coal loading efficiency and the coal mining efficiency of the helical drum of the coal mining machine are greatly improved, in the process of coal mining by the helical drum of the coal mining machine, the cooling water enters the spray nozzle 601 on the spray tooth holder 4 through the cooling water channel 602, and is sprayed out through the spray nozzle 601, so that the cutting track of the drum cutting assembly 5 is cooled and dusted, and the cooling efficiency of the drum cylinder 1 and the drum cutting assembly 5 is improved.

[0074] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A monolithically cast shearer scroll, characterized by, The application relates to a spiral drum for a coal mining machine. The spiral drum comprises a drum barrel (1), a drum end disc (2) arranged outside the end of the drum barrel (1), a plurality of spiral blades (3) arranged outside the drum barrel (1) at equal intervals in a spiral manner, a plurality of spray tooth seats (4) arranged outside the drum end disc (2) and the spiral blades (3) uniformly, a drum cutting assembly (5) arranged on each spray tooth seat (4), and a spray cooling water channel assembly (6) arranged on each spray tooth seat (4). The end of the drum barrel (1) is internally provided with a drum connecting flange (7) and a drum end cover (8). The drum barrel (1) is installed on the coal mining machine through the drum connecting flange (7). The drum barrel (1), the drum end disc (2), the spiral blades (3) and the spray tooth seats (4) are integrally cast. The drum end disc (2) is a hub type drum end disc. The spiral blades (3) are gradually changed curved spiral blades, and one end of the spiral blades (3) is connected with the drum end disc (2).

2. A monolithically cast shearer scroll drum according to claim 1, characterised in that: The number of the spiral blades (3) is calculated according to the formula (A). The lead of the spiral blade is L, the number of the spiral blade is Z, the outer diameter of the spiral blade is D, the inner diameter of the spiral blade is d, and the relationship coefficient is K.

3. A monolithically cast shearer scroll drum according to claim 1, characterised in that: The lead of the spiral blade is L, the lead angle of the spiral blade is alpha, and the outer diameter of the drum spiral blade is D.

4. A monolithically cast shearer scroll drum according to claim 1, characterised in that: The drum cutting assembly (5) comprises a tooth shoe (501) and a cutting tooth (502).

5. A monolithically cast shearer scroll drum according to claim 1, characterised in that: The tooth shoe (501) is arranged on the spray tooth seat (4), and the cutting tooth (502) is arranged on the tooth shoe (501).

6. A monolithically cast shearer scroll drum according to claim 5, characterised in that: The spray cooling water channel assembly (6) comprises a spray nozzle (601) and a cooling water channel (602). （A） The spray nozzle (601) is arranged on the spray tooth seat (4), and the cooling water channel (602) is arranged in the drum end disc (2) and the spiral blade (3) and communicates with the spray nozzle (601). The application further discloses a coal mining machine spiral drum based on integral casting. ​ ​ ​ 7. A monolithically cast shearer scroll drum according to claim 6, characterised in that: ​ （B） ​ ​ ​ 8. A monolithically cast shearer scroll drum according to claim 1, characterized in that: ​ ​ 9. A monolithically cast shearer scroll drum according to claim 1, characterised in that: ​ ​ 10. A coal mining machine characterized by, ​

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