CN207470615U - Thrust bearing in a kind of water - Google Patents

Abstract

The utility model provides thrust bearing in a kind of water, is related to a kind of thrust slide bearing of Water motor.It includes thrust shaft block, thrust bearing and thrust disc, thrust bearing is installed on thrust shaft block, it is characterized in that, there is gap to allow relative rotation between the two between the thrust disc and thrust bearing, thrust disc and thrust bearing composition friction are secondary, several grooves, radial arrangement of the groove along rubbing surface are opened up at the rubbing surface of thrust disc and thrust bearing, and is radially distributed centered on thrust disk axis.This patent preferably opens up groove in the both ends of the surface of thrust disc, and thrust disc is in fact become a qualified full-open type double-entry impeller.Experiments have shown that this patent has good using effect, the thrust disc of rotation can form the water cycle of big flow, fully take away thrust disc and heat caused by thrust bearing rubbing surface, simultaneously in rotation process, the strength for floating thrust disc can be also generated, liquid is formed and moves lubrication.

Description

Thrust bearing in a kind of water

Technical field

The utility model is related to a kind of thrust slide bearing of Water motor, thrust axis in specifically a kind of water It holds.

Background technology

There are two types of the thrust bearings of traditional Water motor：A kind of is the thrust bearing that smooth thrust disc is pressed in monoblock On, several radial slots are provided on thrust bearing；Thrust disc is fixed on motor shaft and is rotated with motor, and thrust bearing does not turn, but can To shake a little, so that the two can contact well in relative rotation.Another kind is known as tilting bush type, it is to be divided into thrust bearing Many fritters that can individually shake, on one disc, disk can also shake this group of thrust bearing dress a little；This structure exists It is used under many occasions, when it is the larger liquid of machine oil class viscosity to slide medium, it is very reliable, and bearing capacity is very big.But in water Middle work limitation fruit is unsatisfactory, and its cost is more much higher than the first.Both thrust bearings have thrust axis in addition to following Outside holding, there is one piece of thrust bearing above thrust disc, rotor fastens string when this is to prevent unit starting.Upper and lower two push away Power bearing is clipped in the middle thrust disc, each other axial gap very little.

Above with respect to the structure of thrust slide bearing, every people for understanding water-filling motor is well known.Why this The working effect of slide thrust bearing is all not fully up to expectations in the water of two kinds of structures

This is there are two reason, first, 1/20th of viscosity size not as good as lubricating oil of water；Second is bearing friction face On heat dispersal situations it is bad.It is close for sliding thrust bearing situation in two kinds of traditional water to radiate bad, because it is pushed away Power disk is all one piece of flat disk, is rotated due to disk effect, also there is the ability that water is got rid of outward, but the tangible mistake of this ability In small, it is impossible to form the water cycle of big flow, it is difficult to fully take away the heat of rubbing surface generation.

Tilting bush structure original meaning be borrow thrust disc rotation when each block of tile inclination and form water wedge, thrust disc is floated Come, form liquid and move lubrication.But the viscosity of water is too small, it is impossible to form the ability that thrust disc can be floated.

So it's safe to say, all extremely difficult formation liquid of thrust slide bearing moves lubrication in any water at present, It is substantially all in nonfluid lubrication state.Except non-axial force is very small.

Invention content

The technical assignment of the utility model is the deficiency for existing Water motor thrust slide bearing, provides one kind Thrust bearing in water, it is intended to improve bearing capacity, ensure use reliability and prolong the service life.

Technical solution is used by the utility model solves its technical problem：

Thrust bearing in a kind of water, including thrust shaft block, thrust bearing and thrust disc, thrust bearing is installed in thrust shaft There is gap to allow relative rotation between the two, thrust disc and thrust in bearing, between the thrust disc and thrust bearing Bearing composition friction is secondary, and several grooves, diameter of the groove along rubbing surface are opened up at the rubbing surface of thrust disc and thrust bearing To arrangement, and radially it is distributed centered on thrust disk axis.

Optionally, the thrust bearing includes upper thrust bearing, lower thrust bearing, is divided into upper and lower two of thrust disc Endface.

Optionally, the groove is opened in the endface of thrust disc.

Optionally, the groove section is inwardly tapered by the end face of thrust disc in bell mouth shape.

Optionally, the thrust bearing is fastenedly connected by screw on thrust shaft block.

Thrust bearing in a kind of water of the utility model, compared with prior art generated advantageous effect be：

This patent is based on a kind of new approaches, using the basic structure of the first thrust bearing in tradition, but in thrust disc With having opened several grooves at the rubbing surface of thrust bearing, groove preferably is opened up in the both ends of the surface of thrust disc, in fact thrust disc Become a qualified full-open type double-entry impeller, not recessings on the thrust bearing of upper and lower full wafer, this new knot It has been configured to three kinds of effects：

1st, the thrust disc of rotation forms many double-entry impellers of a number of blade, therefore the internal circulating load of water is very big, can be fully Take away the heat that thrust disc is generated with thrust bearing rubbing surface.

The 2nd, since thrust disc will generate pressure, this pressure can drive water to squeeze as an impeller in rotation process Enter the gap between thrust disc and thrust bearing, form a kind of strength that thrust disc is floated, this power is on the order of magnitude and can incline The buoyancy that tile structure generates belongs to an order of magnitude.

3rd, thrust disc is a double-entry impeller, and the effect that both sides generate is symmetrical, without worrying that unit body of one who has dropped dead by the roadside uses production Life pushes away partially.

Experiments have shown that this patent has good using effect, the thrust disc of rotation is equivalent to many double suctions of the number of blade Impeller can form the water cycle of big flow, fully take away thrust disc and heat caused by thrust bearing rubbing surface, while turning During dynamic, the strength for floating thrust disc can be also generated, liquid is formed and moves lubrication, in addition, this patent about can in cost The half of tile style of inclining bearing.

Description of the drawings

Attached drawing 1 is the structure diagram of the utility model；

Attached drawing 2 is the structure diagram of the utility model thrust disc；

Attached drawing 3 is the A-A of Fig. 2 to section view partial enlarged view.

In figure, 1, thrust bearing, 11, upper thrust bearing, 12, lower thrust bearing, 2, thrust disc, 3, screw, 4, thrust shaft Bearing, 5, keyway, 6, groove.

Specific embodiment

1-2 below in conjunction with the accompanying drawings is described in detail below thrust bearing in a kind of water of the utility model.

As shown in attached drawing 1,2,3, thrust bearing in a kind of water of the utility model, including thrust shaft block 4, thrust bearing 1 and thrust disc 2, thrust bearing 1 be installed on thrust shaft block 4, between the thrust disc 2 and thrust bearing 1 have gap with Allow relative rotation between the two, thrust disc 2 and the composition friction of thrust bearing 1 are secondary, and the inside of 2 axis hole of thrust disc is equipped with keyway 5, open up several grooves 6 at the rubbing surface of thrust disc 2 and thrust bearing 1, radial arrangement of the groove 6 along rubbing surface, and It is radially distributed centered on 2 axis of thrust disc.

In the present embodiment, rotor fastens string during to avoid unit starting, thrust bearing 1 include upper thrust bearing 11, it is lower only Thrust bearing 12 is divided into upper and lower two endfaces of thrust disc 2.

In the present embodiment, groove 6 is opened in the endface of thrust disc 2,6 section of groove by thrust disc 2 end face inwardly gradually Contracting is in bell mouth shape.

In the present embodiment, lower thrust bearing 12 is fastenedly connected by screw 3 on thrust shaft block 4.

This patent in the basic structure of the first thrust bearing, has separately been opened several in tradition in the both ends of the surface of thrust disc 2 Thrust disc 2 is in fact become a full-open type double-entry impeller by groove 6, is not opened on the thrust bearing 1 of upper and lower full wafer recessed Slot 6.

The thrust disc 2 of rotation is used as full-open type impeller, and the recycle stream of water is very big, is generated at rubbing surface convenient for fully taking away Heat, can generate negative pressure in 2 rotation process of thrust disc, this negative pressure can drive water enter thrust disc 2 and thrust bearing 1 it Between gap, form a kind of strength that thrust disc 2 is floated.

Experiments have shown that the present invention has good using effect.In cost be about tilting bush formula bearing half.

Thrust bearing in a kind of water of the utility model, processing and fabricating is simple and convenient, is processed shown in by specification attached drawing Making.

It is the known technology of those skilled in the art in addition to the technical characteristic described in specification.

Claims (5)

1. thrust bearing in a kind of water, including thrust shaft block, thrust bearing and thrust disc, thrust bearing is installed in thrust bearing On seat, which is characterized in that there is gap to allow relative rotation between the two, thrust between the thrust disc and thrust bearing Disk and thrust bearing composition friction are secondary, and several grooves are opened up at the rubbing surface of thrust disc and thrust bearing, and the groove edge is rubbed The radial arrangement in wiping face, and be radially distributed centered on thrust disk axis.

2. thrust bearing in a kind of water according to claim 1, which is characterized in that the thrust bearing includes upper thrust shaft It holds, lower thrust bearing, is divided into upper and lower two endfaces of thrust disc.

3. thrust bearing in a kind of water according to claim 1 or 2, which is characterized in that the groove is opened in thrust disc Endface.

4. thrust bearing in a kind of water according to claim 3, which is characterized in that the groove section by thrust disc end It is inward-facing tapered in bell mouth shape.

5. thrust bearing in a kind of water according to claim 1,2 or 4, which is characterized in that the thrust bearing passes through spiral shell It clenches and is solidly connected on thrust shaft block.