CN102335653A

CN102335653A - Conical drum screen

Info

Publication number: CN102335653A
Application number: CN2010102344725A
Authority: CN
Inventors: 温巨国
Original assignee: 温巨国
Current assignee: LIAONING BEIFANG ELECTRIC MACHINERY COMPLETE EQUIPMENT CO., LTD.
Priority date: 2010-07-23
Filing date: 2010-07-23
Publication date: 2012-02-01
Anticipated expiration: 2030-07-23
Also published as: CN102335653B

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 usefulness of screening coal.

Background technology:

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

Summary of the invention:

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

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

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

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

In order to clear up screen drum inside, can in screen drum, establish gripper shoe, gripper shoe one end is connected fixing with cover body through connecting plate, and the other end is fixed on the feeding cylinder, elasticity brush in being equipped with on the gripper shoe, 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 support roller is not fragile because screen drum is taper shape, and its axial line is parallel to the ground, and is little to the axial compressive force of support roller; Long service life, microcephaly's charging of screen drum, the major part discharging, linear velocity progressively strengthened when screen drum rotated; Material can move ahead smoothly, and it is unobstructed to flow, and is not long-pending not stifled; Owing on the flute profile support roller, establish labyrinth lid and sealing ring, good sealing effect; Owing on supporting-roller shaft, establish oil inlet passage, oil inlet passage is communicated with bearing of conveyor idler, can realize giving automatically the bearing of conveyor idler stuffing; Because elasticity brush in screen drum, establishing can be cleared up inboard wall of riddle drum when screen drum rotates automatically, stop stifled sieve phenomenon, because screen drum is located in the outer cover, screen drum is worked under the state of sealing, helps environmental protection, can guarantee that the workman's is healthy unaffected.

Description of drawings:

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

On flute profile support roller 25, establish the bearing gland 19 that end face has the labyrinth annular groove, labyrinth lid 20 is fixed on the support roller seat 12 and with the labyrinth annular groove of bearing gland and matches, and sealing ring 21 is housed on the bearing gland.

On supporting-roller shaft 22, establish oil inlet passage 23, this oil inlet passage is communicated with bearing of conveyor idler 24, and cover body 1 fixed outside has fatliquoring machine 2, and fatliquoring machine has oil pipe to link to each other with oil inlet passage 23.

In screen drum, establish gripper shoe, gripper shoe one end is connected and fixed by connecting plate and cover body 1, and the other end is fixed on the feeding cylinder, elasticity brush 8 in being equipped with on the 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 comprises base (18), and motor reducer (15) is contained on the base through support; It is characterized in that: cover body (1) is housed on the base, screen drum (4) is arranged in the cover body, screen drum (4) is taper; Its microcephaly is an arrival end, and major part is the port of export, and there is feeding cylinder (10) at screen drum arrival end place; Feeding cylinder is fixed on the cover body through flange (17), and the port of export of feeding cylinder stretches into the arrival end of screen drum, on the base of the screen drum port of export below coarse fodder outlet (11) is arranged; On the base of screen drum below fines outlet (16) is arranged, screen drum (4) two ends are respectively installed with big rolling ring (3) and little rolling ring (9), on the base of big rolling ring and little rolling ring below a pair of wheel holding mechanism are arranged respectively; Wheel holding mechanism comprises support roller seat (12), all is fixed with supporting-roller shaft (22) on each support roller seat, and flute profile support roller (25) is contained on the supporting-roller shaft (22) through bearing (24); Big rolling ring and little rolling ring place respectively in the groove of flute profile support roller; The screen drum middle part is set with hinge wheel (6), and minor sprocket (13) is arranged on the motor reducer (15), and minor sprocket is connected with hinge wheel (6) through chain (14); Big rolling ring, little rolling ring and hinge wheel link together through several connecting plates (7) and form the taper framework, are lifted with outer elasticity brush (5) on the cover body of screen drum top, and outer elasticity brush contacts with screen drum.

2. according to the described conical trommel of claim 1; It is characterized in that on flute profile support roller (25), establishing the bearing gland (19) that end face has the labyrinth annular groove; Labyrinth lid (20) is fixed on support roller seat (12) and upward and with the labyrinth annular groove of bearing gland matches, and sealing ring (21) is housed on the bearing gland.

3. according to claim 1 or 2 described conical trommels; It is characterized in that on supporting-roller shaft (22), establishing oil inlet passage (23); This oil inlet passage is communicated with bearing of conveyor idler (24), and cover body (1) fixed outside has fatliquoring machine (2), and fatliquoring machine has oil pipe to link to each other with oil inlet passage (23).

4. according to claim 1 or 2 described conical trommels; It is characterized in that in screen drum, establishing gripper shoe, gripper shoe one end is connected fixing with cover body (1) through connecting plate, and the other end is fixed on the feeding cylinder (10); Elasticity brush (8) in being equipped with on the gripper shoe, interior elasticity brush contacts with screen drum.

5. according to the described conical trommel of claim 3; It is characterized in that in screen drum, establishing gripper shoe, gripper shoe one end is connected fixing with cover body (1) through connecting plate, and the other end is fixed on the feeding cylinder (10); Elasticity brush (8) in being equipped with on the gripper shoe, interior elasticity brush contacts with screen drum.

6. according to claim 1 or 2 described conical trommels, it is characterized in that 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 °.

7. according to the described conical trommel of claim 3, it is characterized in that 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 °.

8. according to the described conical trommel of claim 4, it is characterized in that 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 °.

9. according to the described conical trommel of claim 5, it is characterized in that 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 °.