CN102335653B

CN102335653B - Conical drum screen

Info

Publication number: CN102335653B
Application number: CN 201010234472
Authority: CN
Inventors: 温巨国
Original assignee: Individual
Current assignee: LIAONING BEIFANG ELECTRIC MACHINERY COMPLETE EQUIPMENT Co Ltd
Priority date: 2010-07-23
Filing date: 2010-07-23
Publication date: 2013-05-22
Anticipated expiration: 2030-07-23
Also published as: CN102335653A

Abstract

The invention discloses a conical drum screen, and relates to a device for sieving coal, which is mainly designed for solving the problems of high probability of damage, high probability of accumulation and blockage of materials existing in the conventional drum screen. The conical drum screen comprises a pedestal and a motor reducer, wherein the pedestal is provided with a cover body; a screen drum is arranged in the cover body; an inlet end of the screen drum is provided with a feed drum; the feed drum is fixed on the cover body; the pedestal is provided with a coarse material outlet and a fine material outlet; the screen drum is provided with a large rolling ring and a small rolling ring; the pedestal is provided with a supporting wheel seat; the supporting wheel seat is provided with a supporting wheel shaft; the groove-shaped supporting wheel is arranged on the supporting wheel shaft through a bearing; the large rolling ring and the small rolling ring are arranged in the groove of a groove-shaped supporting wheel; a large chain wheel on the screen drum is connected with a small chain wheel on the motor reducer through a chain; the cover body is provided with an external elastic brush; the groove-shaped supporting wheel is provided with a bearing gland; a labyrinth cover is fixed on the supporting wheel seat to be matched with the bearing gland; the bearing gland is provided with a seal ring; the supporting wheel shaft is provided with an oil inlet passage which is communicated with a supporting wheel bearing; an oil pipe of a grease feeder is connected with the oil inlet passage; and a supporting plate in the screen drum is provided with an inner elastic brush. The conical drum screen has the advantages of low probability of damaging the supporting wheel and no blockage of the material.

Description

Conical trommel

Technical field:

The present invention relates to a kind of device of the use of screening coal.

Background technology:

The screen drum of the rotary screen of the existing use of screening coal is columnar, screen drum tilts to be contained on axle, during work, screen drum tilts to rotate, and large to the axial compressive force of support roller, support roller is fragile, service life is short, and the drum rotating resistance is large, and during the screen drum rotation, the linear velocity at screen drum two ends is identical, and material at the uniform velocity advances, move not smooth, easily long-pending stifled; The bearing of conveyor idler felt-ring seal of rotary screen in addition, sealing effectiveness is bad, easily advances coal ash, causes the damage of bearing; The inboard wall of riddle drum of rotary screen is sticking coal easily, and particularly wet coal more easily is attached on inwall, causes stifled sieve, affects the efficient of screening coal; The coal ash that produces when rotary screen rotates is large, and contaminated environment affects the healthy of workman.

Summary of the invention:

It is not fragile that technical problem to be solved by this invention is to provide a kind of support roller; Screen drum is difficult for stifled long-pending; Sealing supporting roller bearing is effective; The conical trommel of inboard wall of riddle drum energy Automatic clearance.

above-mentioned purpose is achieved in that it comprises base, motor reducer is contained on base by support, cover body is housed on base, screen drum is arranged in cover body, screen drum is taper, its microcephaly is arrival end, major part is the port of export, there is feeding cylinder at screen drum arrival end place, feeding cylinder is fixed on cover body by flange, the port of export of feeding cylinder stretches into the arrival end of screen drum, the coarse fodder outlet is arranged on the base of screen drum port of export below, the fines outlet is arranged on the base of screen drum below, the screen drum two ends are respectively installed with large rolling ring and little rolling ring, on base below large rolling ring and little rolling ring, a pair of wheel holding mechanism is arranged respectively, wheel holding mechanism comprises supporting roller base, be fixed with supporting-roller shaft on each supporting roller base, the flute profile support roller is contained on supporting-roller shaft by bearing, large rolling ring and little rolling ring are placed in respectively in the groove of flute profile support roller, the screen drum middle part is set with hinge wheel, minor sprocket is arranged on motor reducer, minor sprocket is connected with hinge wheel by chain, large rolling ring, little rolling ring and hinge wheel link together by several connecting plates and form the taper framework, are lifted with outer elasticity brush on the cover body above screen drum, and outer elasticity brush contacts with screen drum.

Better for the sealing effectiveness that makes bearing of conveyor idler, can establish end face with the bearing gland of labyrinth annular groove on the flute profile support roller, the labyrinth lid is fixed on supporting roller base and with the labyrinth annular groove of bearing gland and matches, and sealing ring is housed on bearing gland.

In order to give the automatic stuffing of bearing of conveyor idler, can establish oil inlet passage on supporting-roller shaft, this oil inlet passage is communicated with bearing of conveyor idler, is fixed with fatliquoring machine outside cover body, and fatliquoring machine has oil pipe to be connected with oil inlet passage.

In order to clear up screen drum inside, can establish gripper shoe in screen drum, gripper shoe one end is connected and fixed by connecting plate and cover body, and the other end is fixed on feeding cylinder, and interior elasticity brush is housed on gripper shoe, and interior elasticity brush contacts with screen drum.

For screen drum operates steadily, can make two flute profile support rollers of the same end of screen drum and the angle between the screen drum circle center line connecting is 105 °.

Advantage of the present invention is that its axial line is parallel to the ground, and is little to the axial compressive force of support roller because screen drum is taper shape, and support roller is not fragile, long service life, microcephaly's charging of screen drum, the major part discharging, when screen drum rotates, linear velocity progressively strengthens, material can move ahead smoothly, flows unobstructed, and is not long-pending not stifled; Owing to establishing labyrinth lid and sealing ring, good sealing effect on the flute profile support roller; Owing to establishing oil inlet passage on supporting-roller shaft, oil inlet passage is communicated with bearing of conveyor idler, can realize automatically to the bearing of conveyor idler stuffing; Owing to establishing interior elasticity brush in screen drum, but Automatic clearance inboard wall of riddle drum when screen drum rotates is stopped stifled sieve phenomenon, and because screen drum is located in outer cover, screen drum is worked under the state of sealing, is conducive to environmental protection, can guarantee that the workman's is healthy unaffected.

Description of drawings:

Fig. 1 is structural representation of the present invention;

Fig. 2 is the wheel holding mechanism structural representation of the present invention that amplifies.

The specific embodiment:

with reference to Fig. 1, 2, it comprises base 18, motor reducer 15 is contained on base by support, cover body 1 is housed on base, screen drum 4 is arranged in cover body, screen drum 4 is taper, its microcephaly is arrival end, major part is the port of export, there is feeding cylinder 10 at screen drum arrival end place, feeding cylinder is fixed on cover body by flange 17, the port of export of feeding cylinder stretches into the arrival end of screen drum, coarse fodder outlet 11 is arranged on the base of screen drum port of export below, fines outlet 16 is arranged on the base of screen drum below, screen drum 4 two ends are respectively installed with large rolling ring 3 and little rolling ring 9, on base below large rolling ring and little rolling ring, a pair of wheel holding mechanism is arranged respectively, wheel holding mechanism comprises supporting roller base 12, be fixed with supporting-roller shaft 22 on each supporting roller base, flute profile support roller 25 is contained on supporting-roller shaft 22 by bearing 24, large rolling ring and little rolling ring are placed in respectively in the groove of flute profile support roller, the screen drum middle part is set with hinge wheel 6, minor sprocket 13 is arranged on motor reducer 15, minor sprocket is connected with hinge wheel 6 by chain 14, large rolling ring, little rolling ring and hinge wheel link together by several connecting plates 7 and form the taper framework, are lifted with outer elasticity brush 5 on the cover body above screen drum, and outer elasticity brush contacts with screen drum.

Establish end face with the bearing gland 19 of labyrinth annular groove on flute profile support roller 25, labyrinth lid 20 is fixed on supporting roller base 12 and with the labyrinth annular groove of bearing gland and matches, and sealing ring 21 is housed on bearing gland.

Establish oil inlet passage 23 on supporting-roller shaft 22, this oil inlet passage is communicated with bearing of conveyor idler 24, and cover body 1 outside is fixed with fatliquoring machine 2, and fatliquoring machine has oil pipe to be connected with oil inlet passage 23.

Establish gripper shoe in screen drum, gripper shoe one end is connected and fixed by connecting plate and cover body 1, and the other end is fixed on feeding cylinder, and interior elasticity brush 8 is housed on gripper shoe, and interior elasticity brush contacts with screen drum.

Two flute profile support rollers of the same end of screen drum and the angle between the screen drum circle center line connecting are 105 °.

Claims

1. conical trommel, comprise base (18), motor reducer (15) is contained on base by support, cover body (1) is housed on base, screen drum (4) is arranged in cover body, screen drum (4) is taper, its microcephaly is arrival end, major part is the port of export, there is feeding cylinder (10) at screen drum arrival end place, feeding cylinder is fixed on cover body by flange (17), the port of export of feeding cylinder stretches into the arrival end of screen drum, it is characterized in that: coarse fodder outlet (11) is arranged on the base below the screen drum port of export, on the base of screen drum below, fines outlet (16) is arranged, screen drum (4) two ends are respectively installed with large rolling ring (3) and little rolling ring (9), on base below large rolling ring and little rolling ring, a pair of wheel holding mechanism is arranged respectively, wheel holding mechanism comprises supporting roller base (12), be fixed with supporting-roller shaft (22) on each supporting roller base, flute profile support roller (25) is contained on supporting-roller shaft (22) by bearing (24), large rolling ring and little rolling ring are placed in respectively in the groove of flute profile support roller, the screen drum middle part is set with hinge wheel (6), minor sprocket (13) is arranged on motor reducer (15), minor sprocket is connected with hinge wheel (6) by chain (14), large rolling ring, little rolling ring and hinge wheel link together by several connecting plates (7) and form the taper framework, are lifted with outer elasticity brush (5) on the cover body above screen drum, and outer elasticity brush contacts with screen drum, establish end face with the bearing gland (19) of labyrinth annular groove on flute profile support roller (25), labyrinth lid (20) is fixed on supporting roller base (12) upward and matches with the labyrinth annular groove of bearing gland, and sealing ring (21) is housed on bearing gland, establish oil inlet passage (23) on supporting-roller shaft (22), this oil inlet passage is communicated with bearing of conveyor idler (24), is fixed with fatliquoring machine (2) outside cover body (1), and fatliquoring machine has oil pipe to be connected with oil inlet passage (23), establish gripper shoe in screen drum, gripper shoe one end is connected and fixed by connecting plate and cover body (1), and the gripper shoe other end is fixed on feeding cylinder (10), and interior elasticity brush (8) is housed on gripper shoe, and interior elasticity brush contacts with screen drum, two flute profile support rollers of the same end of screen drum and the angle between the screen drum circle center line connecting are 105 °.