CN103742133A - Drum type cutting tooth chain transmission shearer cutting part - Google Patents

Abstract

The invention relates to a shearer part, in particular to a drum type cutting tooth chain transmission shearer cutting part. In order to improve the coal charging efficiency of a drum and realize efficient coalmining, a cutting tooth chain transmission mode is adopted, a rocker arm is arranged on a coal wall side, and coal is cut through a cutting tooth chain and the drum, and is charged through the drum. The power of a motor is transmitted to an output spline shaft in a gear transmission deceleration way through a fixed reduction gearbox to sequentially drive a driving chain wheel, the cutting tooth chain, a driven chain wheel, a drum shaft and a drum to rotate to cut and charge the coal. A split structure is adopted for the rocker arm, a rocker arm head can extend and retract in a sliding way in a square sleeve of the rocker arm, and the cutting tooth chain is tensioned through a bolt, and then is fixed through an iron wedge group. The other side of the drum is supported by a split auxiliary small rocker arm to strengthen the support strength of the drum, and the auxiliary small rocker arm has a small sectional structure, so that influence on the coal charging of the drum is slight. The cutting part is simple and compact in overall structure, the coal charging efficiency of the drum is improved, and the requirements of mining of an underground thin coal seam are met.

Description

Cutting section of pick chain driven drum shearer

technical field

The invention relates to a cutting part of a pick chain driven drum shearer, in particular to a cutting part of a drum shearer suitable for thin coal seams, and belongs to the field of coal mining equipment.

Background technique

The cutting part of the shearer is an important part of the shearer. Its function is to transmit the power of the motor to the drum shaft through gear transmission and realize deceleration. Coal cutting and coal charging. At present, the cutting part of the shearer is arranged on the side of the goaf with a rocker arm. Due to the strength requirements of the rocker arm and the gears installed in the rocker arm, the structural size of the rocker arm is relatively large, which hinders the roller from pushing coal to the side of the goaf. The coal loading efficiency of the drum is low, and this problem is particularly prominent in thin coal seam shearers.

Contents of the invention

The technical problem to be solved by the present invention is to provide a cutting part of a pick chain driven drum type shearer for the above-mentioned deficiencies in the prior art, so as to realize high coal loading efficiency and reliable operation of the drum.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a cutting part of a pick chain drive drum type shearer, which adopts a pick chain transmission mode, the rocker arm is arranged on the side of the coal wall, and the pick chain and the drum Coal cutting and drum loading. It includes motor, cutting part box, spline shaft, driving sprocket, small end cover, screw, pick chain, passive sprocket, rocker head, bearing, split steel sleeve, large end cover, screw, wedge Iron group I, pressure plate, screw, bolt, roller shaft, roller, positioning spacer sleeve, shaft cover, screw, bearing, small rocker arm head, bearing cover, screw, wedge iron group II, pressure plate, screw, pick chain link, Sleeve, pin, traction box, cutting arm, pin, cutting box, traction box, cutting arm, pin. . The motor of the cutting part of the shearer is in the cutting part box, and the power of the motor is transmitted to the output spline shaft through the gear transmission of the fixed reduction box. The spline shaft drives the driving sprocket to rotate through the spline, and the driving sprocket It is connected with the pick chain to drive the pick chain to rotate, and the pick chain is connected to the passive sprocket, which then drives the passive sprocket to rotate, and the passive sprocket is connected to the drum shaft through a spline, which drives the drum shaft to rotate, and then drives the drum Coal cutting and coal loading are realized, wherein the large end cover and the small end cover are respectively fixed on the drum shaft and the spline shaft by screws; the rocker arm of the cutting part of the shearer adopts a split structure, using the drum shaft and Sleeve connection, the split steel sleeve is connected with the bearing, and the bearing is connected with the rocker head, so that the rocker head can slide and expand in the square sleeve of the rocker arm, and the rocker head is connected with the upper sleeve of the cutting box through the wedge iron group , the square sleeve is connected with the pressure plate by screws, and the bolt is connected with the square sleeve through the threaded hole, so that the pick chain is tensioned and fixed with a wedge iron group; in order to increase the support strength of the drum, a split type is adopted on the other side of the drum. The auxiliary small rocker arm is supported, and the pick chain is tensioned in the same way as the rocker head. Because the auxiliary small rocker arm has a small cross-sectional structure, it has little influence on the coal loading of the drum; The spacer sleeve is matched and connected, and is connected with the drum shaft through a spline, and the shaft cover on the drum is fixed with screws; the cutting arm of the cutting part of the shearer is connected with the traction part through a pin shaft.

The present invention can be applied to the floor type roller shearer and the transporter type roller shearer.

The invention has the beneficial effects of improving the coal loading efficiency of the drum and realizing high-efficiency coal mining.

Description of drawings

The technical solutions of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a planar sectional structural view of the first embodiment of the cutting part of the pick chain driven drum shearer.

Fig. 2 is a schematic structural view of the pick chain in Fig. 1 .

Fig. 3 is a planar sectional structural view of the second embodiment of the cutting part of the pick chain driven roller shearer.

Fig. 4 is a planar sectional structural view of the third embodiment of the cutting part of the pick chain driven drum shearer.

Fig. 5 is a planar sectional structural view of the fourth embodiment of the cutting part of the pick chain driven roller shearer.

Wherein, Fig. 1 to Fig. 5 reference sign explanation:

1 motor, 2 cutting box, 3 spline shaft, 4 driving sprocket, 5 small end cover, 6 screw, 7 pick chain, 8 driven sprocket, 9 rocker head, 10 bearing, 11 split steel Set, 12 large end caps, 13 screws, 14 wedge iron group I, 15 pressure plate, 16 screws, 17 bolts, 18 roller shaft, 19 roller, 20 positioning spacer sleeve, 21 shaft cover, 22 screws, 23 bearings, 24 small rockers Arm head, 25 bearing cover, 26 screw, 27 wedge iron group II, 28 pressure plate, 29 screw, 30 pick chain link, 31 sleeve, 32 pin shaft, 33 traction box, 34 cutting arm, 35 pin shaft , 36 cutting box, 37 traction box, 38 cutting arm, 39 pin.

Detailed ways

In the embodiment shown in Figure 1, the power is transmitted to the spline shaft 3 through the gear transmission in the casing 2 of the cutting part of the motor 1, the spline shaft 3 is connected with the drive sprocket 4 through the spline, and the small end cover 5 is connected by a screw 6 is fixed on the spline shaft 3, the driving sprocket 4 is connected with the pick chain 7, the pick chain 7 is connected with the passive sprocket 8, the passive sprocket 8 is connected with the drum shaft 18 through the spline, and the big end cover 12 is connected with the screw 13 is fixed on the drum shaft 18, the drum shaft 18 is connected with the split steel sleeve 11, the split steel sleeve 11 is connected with the bearing 10, the bearing 10 is connected with the rocker head 9, the drum shaft 18 is connected with the drum 19 through a spline, and the drum 19 is connected with the positioning spacer sleeve 20, the positioning spacer sleeve 20 is connected with the drum shaft 18, the shaft cover 21 is connected with the drum 19 through the screw 22, the drum shaft 18 is connected with the bearing 23, the bearing 23 is connected with the small rocker head 24, and the bearing cover 25 The small rocker head 24 is connected with the screw 26, the small rocker head 24 is connected with the casing above the cutting part box 2 through the wedge iron group II 27, and the rocker arm head 9 is connected with the cutting part box body 2 through the wedge iron group I 14 The upper cover is connected, the pressing plate 28 is connected with the upper cover of the cutting part box body 2 by screws 29, and the bolt 17 is connected with the upper cover of the cutting part box body 2 by threads.

In FIG. 2 , the pick chain link 30 is connected with the pin shaft 32 and the sleeve 31 to form a chain, and the chains in turn form the pick chain.

In the embodiment shown in Figure 3, the motor 1 is installed in the traction part box 33, the power is transmitted to the spline shaft 3 through the gear transmission, the spline shaft 3 is connected with the driving sprocket 4 through the spline, and the small end cover 5 passes through The screw 6 is fixed on the spline shaft 3, the driving sprocket 4 is connected with the pick chain 7, the pick chain 7 is connected with the driven sprocket 8, the driven sprocket 8 is connected with the drum shaft 18 through a spline, and the big end cover 12 passes through The screw 13 is fixed on the drum shaft 18, the drum shaft 18 is connected with the split steel sleeve 11, the split steel sleeve 11 is connected with the bearing 10, the bearing 10 is connected with the rocker head 9, and the drum shaft 18 is connected with the drum 19 through a spline, The roller 19 is connected with the positioning spacer sleeve 20, the positioning spacer sleeve 20 is connected with the roller shaft 18, the shaft cover 21 is connected with the roller 19 through the screw 22, the roller shaft 18 is connected with the bearing 23, the bearing 23 is connected with the small rocker head 24, and the bearing cover 25 is connected with the small rocker head 24 through the screw 26, the small rocker head 24 is connected with the upper sleeve of the cutting arm 34 through the wedge iron group II 27, and the rocker arm head 9 is connected with the upper sleeve of the cutting arm 34 through the wedge iron group I 14 , the pressing plate 28 is connected with the upper cover of the cutting arm 34 through the screw 29, the bolt 17 is connected with the upper cover of the cutting arm 34 through threads, and the cutting arm 34 is connected with the traction part 33 through the pin shaft 35.

In the embodiment shown in Fig. 4, in the box body 36 of the cutting part of the motor 1, the power is transmitted to the spline shaft 3 through the gear transmission, the spline shaft 3 is connected with the driving sprocket 4 through the spline, and the small end cover 5 is connected by the screw 6 is fixed on the spline shaft 3, the driving sprocket 4 is connected with the pick chain 7, the pick chain 7 is connected with the passive sprocket 8, the passive sprocket 8 is connected with the drum shaft 18 through the spline, and the big end cover 12 is connected with the screw 13 is fixed on the drum shaft 18, the drum shaft 18 is connected with the split steel sleeve 11, the split steel sleeve 11 is connected with the bearing 10, the bearing 10 is connected with the rocker head 9, the drum shaft 18 is connected with the drum 19 through a spline, and the drum 19 is connected with the positioning spacer sleeve 20, the positioning spacer sleeve 20 is connected with the drum shaft 18, the shaft cover 21 is connected with the drum 19 through the screw 22, the drum shaft 18 is connected with the bearing 23, the bearing 23 is connected with the small rocker head 24, and the bearing cover 25 The small rocker head 24 is connected with the small rocker head 24 through the screw 26, the small rocker head 24 is connected with the casing above the cutting part box 36 through the wedge iron group II 27, and the rocker arm head 9 is connected with the cutting part box body 36 through the wedge iron group I 14 The upper cover is connected, the pressing plate 28 is connected with the upper cover of the cutting part box body 36 by screws 29, and the bolt 17 is connected with the upper cover of the cutting part box body 36 by threads.

In the embodiment shown in Figure 5, the motor 1 is installed in the traction part box 37, the power is transmitted to the spline shaft 3 through gear transmission, the spline shaft 3 is connected with the driving sprocket 4 through the spline, and the small end cover 5 passes through The screw 6 is fixed on the spline shaft 3, the driving sprocket 4 is connected with the pick chain 7, the pick chain 7 is connected with the driven sprocket 8, the driven sprocket 8 is connected with the drum shaft 18 through a spline, and the big end cover 12 passes through The screw 13 is fixed on the drum shaft 18, the drum shaft 18 is connected with the split steel sleeve 11, the split steel sleeve 11 is connected with the bearing 10, the bearing 10 is connected with the rocker head 9, and the drum shaft 18 is connected with the drum 19 through a spline, The roller 19 is connected with the positioning spacer sleeve 20, the positioning spacer sleeve 20 is connected with the roller shaft 18, the shaft cover 21 is connected with the roller 19 through the screw 22, the roller shaft 18 is connected with the bearing 23, the bearing 23 is connected with the small rocker head 24, and the bearing cover 25 is connected with the small rocker head 24 through the screw 26, the small rocker head 24 is connected with the upper sleeve of the cutting arm 38 through the wedge iron group II 27, and the rocker arm head 9 is connected with the upper sleeve of the cutting arm 34 through the wedge iron group I 14 , the pressing plate 28 is connected with the upper cover of the cutting arm 34 by a screw 29, the bolt 17 is connected with the upper cover of the cutting arm 38 by threads, and the cutting arm 38 is connected with the traction part 37 by a pin 39.

Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the scope of the present invention. protected range. the

Claims (4)

1. a pick chain driving drum formula winning machine cutting part, comprise motor (1), cutting units casing (2), splined shaft (3), drive sprocket (4), small end cover (5), screw (6), pick chain (7), by movable sprocket (8), rocker head (9), bearing (10), split steel bushing (11), large end cap (12), screw (13), drift group I (14), pressing plate (15), screw (16), bolt (17), drum shaft (18), cylinder (19), location spacer sleeve (20), shaft-cup (21), screw (22), bearing (23), small rocker head (24), bearing cover (25), screw (26), drift group II (27), pressing plate (28), screw (29), pick chain link (30), sleeve (31), bearing pin (32), tractive unit casing (33), cutting arm (34), bearing pin (35), cutting units casing (36), tractive unit casing (37), cutting arm (38), bearing pin (39), it is characterized in that motor (1) is in cutting units casing (2), power is delivered to splined shaft (3) through gear drive, splined shaft (3) is connected with drive sprocket (4) by spline, small end cover (5) is fixed on splined shaft (3) by screw (6), drive sprocket (4) is connected with pick chain (7), pick chain (7) with by movable sprocket (8), be connected, by movable sprocket (8), by spline, be connected with drum shaft (18), and large end cap (12) is fixed on drum shaft (18) by screw (13).

2. pick chain driving drum formula winning machine cutting part according to claim 1, it is characterized in that drum shaft (18) is connected with split steel bushing (11), split steel bushing (11) is connected with bearing (10), bearing (10) is connected with rocker head (9), drum shaft (18) is connected with cylinder (19) by spline, cylinder (19) is connected with location spacer sleeve (20), location spacer sleeve (20) is connected with drum shaft (18), shaft-cup (21) is connected with cylinder (19) by screw (22), drum shaft (18) is connected with bearing (23), bearing (23) is connected with small rocker head (24), bearing cover (25) is connected with small rocker head (24) by screw (26), small rocker head (24) is connected by the upper square set of drift group II (27) and cutting units casing (2), rocker head (9) is connected by the upper square set of drift group I (14) and cutting units casing (2), pressing plate (28) is connected by the upper square set of screw (29) and cutting units casing (2), bolt (17) is connected by the upper square set of screw thread and cutting units casing (2), can sliding extension and pick chain (7) tensioning in rocking arm square sleeve with small rocker head (24) thereby realize rocker head (9).

3. pick chain driving drum formula winning machine cutting part according to claim 1, is characterized in that pick chain link (30) and bearing pin (32), sleeve (31) connect to form shot of a cable, and pitch chain forms pick chain (7) successively.

4. pick chain driving drum formula winning machine cutting part according to claim 1, is characterized in that cutting arm (34) is connected with tractive unit (33) by bearing pin (35).

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