CN2588135Y

CN2588135Y - Double-seal device with chromium-plated axle sleeve for granule material slurry stirring axle

Info

Publication number: CN2588135Y
Application number: CN 02277065
Authority: CN
Inventors: 欧阳纯
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-13
Filing date: 2002-08-13
Publication date: 2003-11-26
Anticipated expiration: 2012-08-13

Abstract

The utility model relates to a double-seal device with a chromium-plated axle sleeve for a granule material slurry stirring axle, which is formed by that elastic dust blocking rings and bearings are strung and folded, wherein, the elastic dust blocking rings are fixed in a bearing seat. The utility model is characterized in that a sealed ring bearing with an oil surface is appressed with the dust blocking rings; a slurry containing gap is reserved at the outer side of the sealed ring bearing with an oil surface; the position of the slurry containing gap, corresponding to the bearing seat, is provided with a slurry discharging hole; the end heads of a stirring axle are supported by oil-retaining bearings; the section of the stirring shaft and a chromium-plated axle sleeve are in interference fit, and the section is supported by the sealed ring bearing with an oil surface; the oil-retaining bearings are made from nylon materials; the slurry discharging hole is downwards opened in a vertical direction; a plane thrust bearing pair is arranged at the position between the slurry positioning gap and the oil-retaining bearings; the sealed ring bearing with an oil surface is provided with a double-ring type, the hardness HV of the chromium-plated axle sleeve is more than 800. The utility model has the advantages that the impermeability and the tolerance for the granule material slurry are better, a little granular material slurry which permeates into the bearing seat can be eliminated, so the work period and the service life of the whole bearing system can be prolonged.

Description

The band chromium-plated axle sleeve double-seal device of granule material slurry stirring shaft

Technical field: the utility model relates to building, building materials, chemical industry Mixing Machine field, is specifically related to the improvement of the bearing mechanical seal structure of granule material slurry Mixing Machine.

Background technique: in building, building materials, in the chemical field, often need be to as slush, other ore in sand form slip etc. contains the technological operation that the slurry of solid grain stirs, wherein various slurry stirrers are widely used, but the bearing of present slurry stirrer mostly is the pellet shot from a slingshot rolling bearing, and a flexible dust-blocking ring is only arranged between stirring shaft and the bearing in order to stop the infiltration of pellet slurry, and the pellet slurry in the actual industrial production has very big proportion and osmotic force more, be easy to destroy stopping of elasticity dust-blocking ring and be penetrated in the working clearance of pellet shot from a slingshot rolling bearing, hard pellet can be soon with the bearing working surface wear totally, reduce the active duty cycle and the working life of stirrer greatly, give and produce, construction, the economic benefit of construction unit and even social benefit are brought very big negative effect.

Summary of the invention: at the above-mentioned shortcoming of prior art, technical problem to be solved in the utility model is will provide a kind of the pellet slurry is had better impermeability, tolerance, and can exclude the band chromium-plated axle sleeve double-seal device of a little granule material slurry stirring shaft that penetrates into the pellet slurry in the bearing support.

For this reason, technical solution of the present utility model is a kind of band chromium-plated axle sleeve double-seal device of granule material slurry stirring shaft, elasticity dust-blocking ring in the bearing support and bearing string are folded to be formed by being fixed on, it is characterized in that: what be close to dust-blocking ring is the pasta sealed bearing, leave slurry slowing gap in the pasta sealed bearing outside, on the position of the corresponding slurry slowing gap of bearing support, have the plasma discharge mouth; And supporting stirring shaft termination is oil-impregnated bearing.

Go back the chromium plating axle sleeve that stationary fit has high hardness on the stirring shaft part that described pasta sealed bearing is supported; Described oil-impregnated bearing is a nylon material, and described plasma discharge mouth is vertically to offer down.

Also being provided with the plane thrust bearing between described slurry slowing gap and the oil-impregnated bearing pays; Described pasta sealed bearing is two circle formulas; The hardness HV of described chromium plating axle sleeve＞800.

The utility model adopts the two pasta seal ring supportings with elasticity, toughness to be with the stirring shaft of high hardness chromium plating axle sleeve, both strengthened dust-blocking ring to barrier effect, and can also protect stirring shaft and bearing to avoid the excessive wear of solid grain effectively simultaneously from the next particle slip of stirrer internal penetration; For still tenaciously infiltrate the slip of two pasta sealed bearings, then the slurry slowing gap that leaves by the pasta sealed bearing outside is detained, after making its delay reach constant weight, plasma discharge mouth under himself action of gravity from bearing support is discharged outside the bearing support, make it unlikelyly further have influence on outermost nylon oil-impregnated bearing, thereby prolonged the operation cycle and the working life of whole bearing arrangement effectively;

The utility model is simple in structure, implements to have the vast market popularizing prospect easily.

Description of drawings: now in conjunction with the accompanying drawings the utility model is made an explanation.

Fig. 1 is the utility model embodiment's a structural representation.

Embodiment: as shown in Figure 1: the band chromium-plated axle sleeve double-seal device of granule material slurry stirring shaft of the present utility model, elasticity dust-blocking ring 2 in the bearing support 1 and bearing string are folded to be formed promptly by being fixed on: what be close to dust-blocking ring 2 is two circle formula pasta sealed bearings 3 (pouring orifices are shown in below), leave slurry slowing gap 4 in two circle formula pasta sealed bearings 3 outsides, on the position of the corresponding slurry slowing gap 4 of bearing support 1, have vertically plasma discharge mouth 5 down; And supporting stirring shaft 6 terminations is nylon oil-impregnated bearing 7 (pouring orifice is shown in the below); Between described slurry slowing gap 4 and oil-impregnated bearing 7, also be provided with the plane thrust bearing and pay 9;

On the stirring shaft part that the described pair of circle formula pasta sealed bearing 3 supported also stationary fit the chromium plating axle sleeve 8 of high hardness, the hardness HV of this chromium plating axle sleeve＞800 are arranged.

Bearing support 1 of the present utility model is installed in beyond the granule material slurry stirrer housing 10; supporting stirring shaft 6 two ends (end only is shown); when stirring shaft 6 rotations are stirred; pellet slurry pressure and osmotic force increase; can in the gap of 8 on dust-blocking ring 2 and two circle formula pasta sealed bearings 3 and chromium plating axle sleeve, permeate; major part is blocked in dust-blocking ring 2 and two circle formula pasta sealed bearing 3 inboards; the slip of the two pasta sealed bearings 3 of a small amount of infiltrate; then be detained by slurry slowing gap 4; discharge outside the bearing support the plasma discharge mouth 5 from bearing support 1 then; can not cause wearing and tearing, reach tighter whole bearing arrangement to outermost nylon oil-impregnated bearing 7; the effect of reliable seal protection.

Claims

1, a kind of band chromium-plated axle sleeve double-seal device of granule material slurry stirring shaft, elasticity dust-blocking ring in the bearing support and bearing string are folded to be formed by being fixed on, it is characterized in that: what be close to dust-blocking ring is the pasta sealed bearing, leave slurry slowing gap in the pasta sealed bearing outside, on the position of the corresponding slurry slowing gap of bearing support, have the plasma discharge mouth; And supporting stirring shaft termination is oil-impregnated bearing.

2, the band chromium-plated axle sleeve double-seal device of granule material slurry stirring shaft as claimed in claim 1 is characterized in that: go back the chromium plating axle sleeve that stationary fit has high hardness on the stirring shaft part that described pasta sealed bearing is supported; Described oil-impregnated bearing is a nylon material, and described plasma discharge mouth is vertically to offer down.

3, the band chromium-plated axle sleeve double-seal device of granule material slurry stirring shaft as claimed in claim 2 is characterized in that: also be provided with the plane thrust bearing between described slurry slowing gap and the oil-impregnated bearing and pay; Described pasta sealed bearing is two circle formulas; The hardness HV of described chromium plating axle sleeve＞800.