CN2430569Y

CN2430569Y - Complex screw bearing steel ball sleeve

Info

Publication number: CN2430569Y
Application number: CN 00239179
Authority: CN
Inventors: 朱恩德
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-20
Filing date: 2000-06-20
Publication date: 2001-05-16
Anticipated expiration: 2010-06-20

Abstract

The utility model relates to a steel ball sleeve which presents a tubular hollow shape. A plurality of penetrating holes are arranged on the tube surface of the utility model and overspread a whole circumferential surface; the separation distance of the holes is small; the arrangement of the holes presents an inclined plane shape and a spiral shape; thereof, steel balls are arranged in the holes to make the bearing pressure of the whole steel ball sleeve reduced and the service life of the whole steel ball sleeve prolonged.

Description

Plural number screw bearing steel ball sleeve

The utility model system is relevant with steel ball sleeve composition structure, more detailed it, refer to a kind of plural screw bearing steel ball sleeve that bears pressure and increase work efficiency especially.Belong to the machining auxiliary equipment.

At present, general machining workpiece especially when punch press board module, sees also Fig. 1 to shown in Figure 3, and steel ball sleeve 1 entangles in regular meeting on module, reducing its andfrictional conditions, yet steel ball sleeve 1 in the past on the implementation regular meeting the following points drawback appears:

1, bears a deficiency, therefore cause and bear the pressure increase.

2, surface of contact is inhomogeneous, so that causes friction on same position, uses long afterwards wear and rupture easily.

3, the body body of traditional steel ball sleeve 1 can cause the friction factor increase when if destruction is arranged when slippage operate, produces bigger resistance.

4, easy to wear, working life is short, needs often to substitute, and can't increase work efficiency.

5, guide pin bushing punch set and the guide pillar die set because of board is under the relative movement state always, and steel ball sleeve 1 is loaded in the guide pin bushing, owing to belong under the motion of sliding and rolling, steel ball sleeve 1 can shift moving in the guide pin bushing inward turning, and the steel ball sleeve 1 of tradition is because of being contained in some steel balls on the same circumference height, can cause guide pin bushing that number row's wearing and tearing are arranged after using a period of time, cause the gap of upper and lower mould to become big, thus mold damage.

Main purpose of the present utility model is: a kind of plural screw bearing steel ball sleeve is provided, and its long service life and high working efficiency, and can improve the value of industrial circle utilization, make it to have more economic benefit.

A kind of plural screw bearing steel ball sleeve of the utility model, this steel ball sleeve system is tubular hollow shape, at its pipe face a plurality of perforated holes are set, and be covered with whole circle side face, and between its hole apart from little, and arrange and will present inclined plane shape and in the shape of a spiral, in view of the above, insert steel ball in the hole, whole group steel ball sleeve is reduced bear pressure, and will increase its working life.

Advantage of the present utility model is as follows:

1, bear an increase, every is born pressure and diminishes.

2, prolong working life, reduce financial cost.

3, surface of contact strengthens and is even, not easy to wear.

4, be fit to different types of machines processing, the module that especially runs up.

5, need not frequent replacement, increase work efficiency relatively.

The utlity model has following accompanying drawing:

Figure 1A, B are for commonly using the schematic representation of steel ball sleeve.

Fig. 2 is for commonly using the schematic perspective view of steel ball sleeve.

Fig. 3 is for commonly using the floor map of steel ball sleeve.

Fig. 4 is the schematic perspective view of the utility model.

Fig. 5 is the combination schematic perspective view of the utility model.

Fig. 6 is the floor map of the utility model.

Fig. 7 is for commonly using the comparison schematic representation of steel ball sleeve and the utility model.

Number in the figure is as follows:

1. steel ball sleeve 2. holes 10. steel ball sleeves

11. hole 20. steel balls

Now lift preferred embodiment and conjunction with figs. is described as follows:

At first, see also Fig. 4, shown in Figure 5, a kind of plural screw bearing steel ball sleeve of the utility model is primarily characterized in that:

This steel ball sleeve 10 is to be tubular hollow shape, at its pipe face a plurality of perforated holes 11 are set, and be covered with whole circle side face, and distance is little between its hole 11, and arrange and will present inclined plane shape and in the shape of a spiral, in view of the above, insert steel ball 20 in the hole 11, whole group steel ball sleeve 10 is reduced bear pressure, and will prolong its working life.

When making, see also Fig. 6 and cooperate Fig. 4, shown in Figure 5, at first, tailor the tubular body of one section predetermined length, and on its tubular body side face, these perforated holes 11 positions of first prearranging quatity system, and distance between each hole 11, and when desired location, be position with spiral arrangement hole 11, make its complete cycle face be covered with hole 11 after, the arrangement sample attitude that will present spiral, and look closely the inclined-plane that its circle face also has gradient, and bigger bearing surface can be provided, bearing pressure therefore will reduce.

Moreover, when the utility model compares with the person of commonly using, see also shown in Figure 7, the left side is the sectional view of the person's of commonly using steel ball sleeve 1, and the right is steel ball sleeve 10 sectional views of the utility model, when the two compares, can know and find out that these hole of commonly using steel ball sleeve 12 spacings are very big, and arrange in good order, that is, and parallel to each other and vertical arrangement, so design makes die holder increase its frictional force, and it bears pressure and can't effectively bear and make steel ball sleeve 1 fracture damaged, and reviews the design of this practical Queensland novel steel-ball cover 10, is with its hole 11 pitch smaller, and establish shape in the shape of a spiral, make it bear an increase, relatively this bears pressure increases thereupon, and therefore the life-span is prolonged.For example, this person of commonly using is if 100Kg bears a little 10 points, and then every like this pressure will have 10Kg; The utility model then 100Kg bears a little 20 points, and then every the pressure that bears is 5Kg, that is:

The person of commonly using: 100Kg → 10 points → every point pressure=10Kg

The utility model: 100Kg → 20 points → every point pressure=5Kg

Therefore, the utility model bears an increase with it, and every the pressure that bears is reduced, and more therefore can allow prolong working life, and therefore relative working efficiency also improves many.

What deserves to be mentioned is, the structural design of the utility model is different from the steel ball sleeve of traditional and single screw type, single screw type is as when bearing the lateral force of dashing forward, have only a steel ball to bear lateral force at its maximum weighted point place, and visual its actual behaviour in service of the utility model plural number spiral, make double helix (180 degree), triple helical (120 degree), four spirals (90 degree) or the like, its lateral pressure average mark is dispersed on each steel ball, increase the life-span of steel ball sleeve, guide pin bushing and guide pillar.

Supplementary notes a bit, the utility model then applies to punch press die holder (moving up and down at a high speed), industrial machine, multiple-die press, food machine and is used in the following workplace machinery of relative movement first-class when implementing, its using effect is good especially.

Claims

1, a kind of plural screw bearing steel ball sleeve is characterized in that: this steel ball sleeve system is tubular hollow shape, at its pipe face a plurality of perforated holes is set, and be covered with whole circle side face, and between its hole apart from little, and arrange and will present inclined plane shape and in the shape of a spiral, insert steel ball in the hole.