CN201934497U

CN201934497U - Hinging and vibration reducing device of rocker arm and traction part of drum coal mining machine

Info

Publication number: CN201934497U
Application number: CN2011200311958U
Authority: CN
Inventors: 刘士阁; 刘文东; 王振德
Original assignee: Sany Heavy Equipment Co Ltd
Current assignee: Sany Heavy Equipment Co Ltd
Priority date: 2011-01-28
Filing date: 2011-01-28
Publication date: 2011-08-17
Anticipated expiration: 2021-01-28

Abstract

The utility model relates to the field of coal mining machines, and particularly discloses a hinging and vibration reducing device of a rocker arm and a traction part of a small-power drum coal mining machine, and the hinging and vibration reducing device is used in the hinging and vibration reducing structure of the rocker arm and the traction part of the small-power drum coal mining machine, wherein rubber bushings are mounted into the shaft holes of the rocker arms and/or the traction part respectively; the rubber bushing is provided with an inner wear-resisting steel bush, an outer steel ring and a rubber body, the inner wear-resisting steel bush is arranged on the inner layer of the rubber body, and the outer steel ring is arranged on the outer layer of the rubber body. The rotating speed of a drum of the small-power drum coal mining machine is relatively high, approaching 100 r/min, as the coal hardness is uneven, violent vibration is caused during the cutting process of the drum, which is destructive to machine-mounted electromechanical liquid parts. Two special rubber vibration-reducing bushes are additionally arranged at the hinged part, so as to reduce the transfer of vibration and amplitude, protect the machine-mounted components, and the like, and improve the reliability of the whole machine operation.

Description

The hinged vibration damping equipment of a kind of flitting rocking arm and tractive unit

Technical field

The utility model belongs to the coal winning machine field, is specially the hinged vibration damping equipment of a kind of small-power flitting rocking arm and tractive unit, is used for the hinged vibration damping structure of small-power flitting rocking arm and traction.

Background technique

Coal winning machine is the nucleus equipment of fully mechanized mining face, and the high vibration in coal winning machine when work causes a devastating effect to airborne component etc., reduces extent of vibration, just equals to improve the component functional reliability, thereby improves the complete machine time between failures.

The model utility content

The utility model purpose provides the hinged vibration damping equipment of a kind of small-power flitting rocking arm and tractive unit, reduces vibration to damaging influences such as airborne components and parts, improves the time between failures of complete machine.

The technical solution of the utility model is:

The hinged vibration damping equipment of a kind of flitting rocking arm and tractive unit, adopt rubber bearing bush to be respectively charged in the axis hole of rocking arm and/or tractive unit, Wear Resisting Steel watt, outer rim, rubber body in rubber bearing bush is provided with, Wear Resisting Steel watt in the internal layer of rubber body is provided with, the skin of rubber body is provided with outer rim.

The hinged vibration damping equipment of described flitting rocking arm and tractive unit, interior Wear Resisting Steel watt, outer rim, rubber body three interfix.

The hinged vibration damping equipment of described flitting rocking arm and tractive unit has dustproof ring recess on the rubber bearing bush endoporus, dust ring is arranged in the dustproof ring recess.

The hinged vibration damping equipment of described flitting rocking arm and tractive unit has helical oil groove on the rubber bearing bush endoporus.

The hinged vibration damping equipment of described flitting rocking arm and tractive unit, rocking arm is connected by bearing pin with tractive unit, and rubber bearing bush is arranged between the axis hole and bearing pin of rocking arm, passes through the check ring axial restraint between rubber bearing bush and the rocking arm.

The hinged vibration damping equipment of described flitting rocking arm and tractive unit, rocking arm is connected by bearing pin with tractive unit, and rubber bearing bush is arranged between the axis hole and bearing pin of tractive unit, passes through the check ring axial restraint between rubber bearing bush and the tractive unit.

The beneficial effects of the utility model are:

1, the drum rotation speed of small-power flitting near 100r/min, because the nonuniformity of ature of coal hardness causes in the cylinder cut process, produces high vibration than higher, and airborne mechanical electronic hydraulic component are caused a devastating effect.The hinged vibration damping structure of the utility model small-power flitting rocking arm and tractive unit is provided with: bearing pin, special vibration damping bearing shell, dust ring, internal circlip, reduce vibration to damaging influences such as airborne components and parts, and improve the time between failures of complete machine.

2, the utility model utilizes special rubber bearing bush; changed the hinged design structure of conventional rocker and tractive unit; play vibration damping and vibration isolation purpose; bearing shell is made up of three parts: interior Wear Resisting Steel watt (have dust ring on the bearing shell hole slot is installed), rubber body, outer rim are formed; by add two special rubber dampings watt in the hinged place; to reduce the vibration amplitude transmission, protect airborne components and parts etc., improve the complete machine reliability of operation.

Description of drawings

Fig. 1 is that the connection outward appearance of rocking arm and tractive unit is always schemed;

Fig. 2 (a)-Fig. 2 (b) is the hinging structure schematic representation of rocking arm and tractive unit; Wherein, Fig. 2 (a) is the A-A sectional view of Fig. 1; Fig. 2 (b) is the B-B sectional view of Fig. 2 (a);

Fig. 3 is special rubber bearing bush structure and the means of fixation sectional view on axis hole;

Fig. 4 (a)-Fig. 4 (b) is the hinging structure schematic representation of rocking arm and tractive unit; Wherein, Fig. 4 (a) is the C-C sectional view of Fig. 1; Fig. 4 (b) is the D-D sectional view of Fig. 4 (a);

Fig. 5 is special rubber bearing bush structural representation;

Fig. 6 is the sectional position schematic representation of oil groove;

Among the figure, 101 rocking arms; 102 tractive units; 103 bearing pin I; 104 special rubber bearing bush I; 105 check rings; 106 dust rings; 107 bearing pin II; 108 special rubber bearing bush II; Wear Resisting Steels watt in 109; 110 outer rims; 111 rubber body; 112 oil grooves.

Embodiment

Shown in Fig. 1-6, the hinged vibration damping equipment of the utility model flitting rocking arm and tractive unit, adopt special rubber bearing bush to be respectively charged in the axis hole of rocking arm 101 and/or tractive unit 102, have dustproof ring recess and helical oil groove 112 on special rubber bearing bush endoporus, the rocking arm 101 of flitting is connected by hinged vibration damping equipment with tractive unit 102.

Shown in Fig. 2 (a)-Fig. 2 (b), rocking arm 101 is connected by bearing pin I 103 with tractive unit 102, is provided with special rubber bearing bush I 104 between the axis hole of rocking arm 101 and bearing pin I 103.As shown in Figure 3, dust ring 106 is set between special rubber bearing bush I 104 and the bearing pin I 103 on the dustproof ring recess of special rubber bearing bush I 104, passes through check ring 105 axial restraints between special rubber bearing bush I 104 and the rocking arm 101.

Shown in Fig. 4 (a)-Fig. 4 (b), rocking arm 101 is connected by bearing pin II107 with tractive unit 102, is provided with special rubber bearing bush II108 between the axis hole of tractive unit 102 and bearing pin II107.Dust ring is set between special rubber bearing bush II108 and the bearing pin II107 on the dustproof ring recess of special rubber bearing bush II108, passes through the check ring axial restraint between special rubber bearing bush II108 and the tractive unit 102.

As shown in Figure 5, special rubber bearing bush I 104 and special rubber bearing bush II108 mainly comprise: interior Wear Resisting Steel watts 109, outer rim 110, rubber body 111, Wear Resisting Steel watts 109 in the internal layer of rubber body 111 was provided with, the skin of rubber body 111 is provided with outer rim 110, and interior Wear Resisting Steel watts 109, outer rim 110, rubber body 111 threes interfix.

As shown in Figure 6, have helical oil groove 112 on the interior Wear Resisting Steel of special rubber bearing bush I 104 and special rubber bearing bush II108 watt 109 endoporus.

Assembly process of the present utility model is as follows:

The first step: after special rubber bearing bush I 104 and special rubber bearing bush II108 (see figure 5) are made, load onto two dust ring 106 (see figure 3)s.

Second step: special rubber bearing bush I 104 inner rings are spread lubricating grease, in the hole of the rocking arm 101 of packing into (Fig. 2), make the axial restraint (see figure 3) with two internal circlips 105.

The 3rd step: special rubber bearing bush II108 inner ring is spread lubricating grease, in the hole of the tractive unit 102 of packing into (Fig. 4), makes axial restraint with two internal circlips 105.

The 4th step, rocking arm 101 is sling, align with the hole of tractive unit 102, load onto bearing pin I 103 and bearing pin II107 (seeing Fig. 2, Fig. 4) respectively.

Maintenance process of the present utility model is as follows:

Damage if find bearing shell, pull down bearing pin, hang away rocking arm, pull down check ring, bearing shell is got, the bearing shell that more renews gets final product.

Claims

1. the hinged vibration damping equipment of flitting rocking arm and tractive unit, it is characterized in that: adopt rubber bearing bush to be respectively charged in the axis hole of rocking arm and/or tractive unit, Wear Resisting Steel watt, outer rim, rubber body in rubber bearing bush is provided with, Wear Resisting Steel watt in the internal layer of rubber body is provided with, the skin of rubber body is provided with outer rim.

2. according to the hinged vibration damping equipment of described flitting rocking arm of claim 1 and tractive unit, it is characterized in that: interior Wear Resisting Steel watt, outer rim, rubber body three interfix.

3. according to the hinged vibration damping equipment of described flitting rocking arm of claim 1 and tractive unit, it is characterized in that: have dustproof ring recess on the rubber bearing bush endoporus, dust ring is arranged in the dustproof ring recess.

4. according to the hinged vibration damping equipment of described flitting rocking arm of claim 1 and tractive unit, it is characterized in that: on the rubber bearing bush endoporus, have helical oil groove.

5. according to the hinged vibration damping equipment of described flitting rocking arm of claim 1 and tractive unit, it is characterized in that: rocking arm is connected by bearing pin with tractive unit, rubber bearing bush is arranged between the axis hole and bearing pin of rocking arm, passes through the check ring axial restraint between rubber bearing bush and the rocking arm.

6. according to the hinged vibration damping equipment of described flitting rocking arm of claim 1 and tractive unit, it is characterized in that: rocking arm is connected by bearing pin with tractive unit, rubber bearing bush is arranged between the axis hole and bearing pin of tractive unit, passes through the check ring axial restraint between rubber bearing bush and the tractive unit.