WO1983001586A1

WO1983001586A1 - Bearing box

Info

Publication number: WO1983001586A1
Application number: PCT/JP1982/000427
Authority: WO
Inventors: Ltd. Asahiseiko
Original assignee: Horiguchi, Masaki
Priority date: 1981-11-07
Filing date: 1982-11-04
Publication date: 1983-05-11

Abstract

A flanged bearing box which comprises a housing (11), (12) or (13) of a short cylindrical shape for engaging and holding a bearing, a base (20), (22) or (25) formed with an opening (40), (42) or (43) for engaging the housing, or a groove and a clamping bolt hole (5), in such a manner that the housing is engaged with or placed into a bonded integrally with the opening or the groove as if on a pillow. Since this bearing box can be obtained by cutting a blank such as a steel pipe or the like into a predetermined size to obtain the housing, the base can be produced by a simple method such as punching or pressing of steel plate, and the bearing-containing section and the bottom surface can be mechanically worked as required after the housing and the base are welded together integrally, the engagement fixture and the central height of the bearing can be accurately maintained, and therefore the dimensional accuracy of the product is excellent. Further, since the housing and the base can be joined together by welding, this bearing can have a high degree of rigidity equivalent to a conventional bearing box of cast iron, and also have excellent impact resistance.

Description

M

TO

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pillow type and a flange type bearing housing for a rolling bearing, and has a housing for accommodating the bearing and a base for holding the housing having a fixing port hole. The present invention relates to a bearing box which is easy to manufacture and has high secondary properties by forming the two members as separate members and joining the two members together.

Background technology

Generally, pillow-type and flange-type bearing housings (hereinafter simply referred to as bearing housings) are manufactured integrally from steel and then machined on the surface, so that the resulting products have high dimensional accuracy and are heavy. However, a robust structure can be obtained. However, mechanical processing of the surface is indispensable for manufacturing, which requires a great deal of time and cost in manufacturing, and cracks are relatively weak against impacts. There were problems such as being seen.

Therefore, bearing housings made of pressed * steel parts with a primary purpose of low cost have been proposed. That is, the bearing housing is formed by combining members molded by a simple punching, bending, deep drawing, or the like. However, this pressed ♦ bearing housing made of steel parts is a so-called spring pack because the pressed metal tends to return to its initial position. The dimensional accuracy, such as the drawing depth and the diameter of the drawing portion, was essentially insufficient for a bearing box for a rolling bearing. In addition, due to constraints from the cost aspect, mechanical processing after the resin molding is extremely restricted.

/ W1PO Therefore, it was difficult to obtain sufficient accuracy, and it was difficult to obtain sufficient rigidity due to the small thickness.

In view of the above-described problems, the present invention provides a pillow that is extremely easy to manufacture while maintaining high dimensional accuracy and high workability of a steel material and a circumference and obtaining high impact resistance. And flange-type bearing boxes

Disclosure of the invention

The present invention comprises a housing of a short cylindrical body for fitting and holding a bearing on an inner peripheral surface, and a base provided with an opening or a groove for fitting a housing and a fixing port hole. The gist is a bearing box that is formed by fitting or mounting a housing into the above-mentioned opening or groove to form an integrated bearing box. Make the box a gist. -In other words, from the housing of the short cylindrical body that fits and holds the bearing on the inner peripheral surface, and the base of the plate or box body provided with the opening for fitting the lower part of the housing and the fixing port hole In other words, it is a one-piece pillow-shaped bearing box in which a housing is fitted and joined to the base opening. ·

It also consists of two members: a short cylindrical housing that fits and holds the bearing on the inner peripheral surface, and a base consisting of a rectangular flat plate and having fixing port holes at both ends in the longitudinal direction. An opening for inserting the lower end of the housing is provided at the center of the protruding base, and the housing is fitted to the center of the base having the opening, and is curved in a circumferential circle, and is fitted into the opening. This is a pillow-type bearing box in which the housing and the base that have been joined are joined together.

OMPI

, L-IPO In addition, a short cylindrical body that fits and holds the bearing on the inner peripheral surface and an opening that fits the entire housing, or at least an opening that does not fit the housing end face at least. Part and a flange base provided with a fixing port hole. A housing is inserted into the above-mentioned opening and joined, or placed and joined around the opening to form an integral body. It is a flange type receiving box.

In this invention, the housing for accommodating the bearing can be easily manufactured by, for example, cutting the pipe to a predetermined size, and has excellent material removal efficiency.

The base for holding the housing and providing the fixing port holes is, for example, a strip-shaped plate material obtained by cutting a thick tin plate, or an opening for inserting the housing into a box formed by press molding. This will improve the efficiency of material removal, and will also provide an opening for inserting a housing into a strip of steel, and press the center of the opening. molded to Ri der only by curved housings and peripheral core circle, fabrication process is good very easy material Installing efficiency ₀

The flange base is cut into a predetermined shape or press-molded, for example, into a circular plate, and the circular end face of the housing is inserted into the flange base. The eight housings are inserted into the flange base opening manufactured as described above, or placed around the flange and joined by welding or the like, so that the integration is simpler and the bearing housing can be easily assembled. Manufacturing becomes extremely easy. The flange base is not limited to a flat plate, and may be, for example, a box formed by pressing a flat plate.

In the present invention, the above housing is obtained from a material such as a pipe. In addition, the above-mentioned base has a simple structure like a simple steel plate stamping or press forming.It is necessary to integrate the housing and the base by welding, etc. The bearing storage part and bottom surface can be machined according to the requirements, so the bearings can maintain the fitting rigidity and center length with high precision, and the product has excellent dimensional accuracy.

In addition, since the present invention has a structure in which the housing and the flange base are integrated by welding or the like, high rigidity such as a conventional steel bearing box and the periphery can be obtained, and the impact resistance is improved. Good bearing box ^> ₀

BRIEF DESCRIPTION OF THE FIGURES

1 and 5 are front, bottom, and cross-sectional views of a pillow-shaped bearing box according to the present invention. FIG. 1 shows a case in which the base is a bottomless box, and FIG. This is the case for a board.

FIG. 2A is a front view and a side view of an eight housing material obtained by cutting a steel pipe, and FIG. 2B is a front view and a longitudinal sectional view of a housing obtained by processing the above material.

FIG. 3 is a top view and a lateral new view of the base of FIG. 1, and FIG. 4 is a plan view of a pillow type single-unit bearing unit according to the present invention equipped with a cylindrical force pad. FIG.

6 and 7 are a front view and a bottom view of a pillow-shaped bearing box according to the present invention, and FIG. 8 is a cross-sectional view taken along the line of FIG. 6_1.

Figure 9 is a front view of a pillow-shaped bearing box using a base without openings.

OMPI Fig. 0] Fig. 0 and Fig. 11 are front views of another embodiment of a pillow-shaped bearing box, Fig. 10 is a grease nipple, Fig. 1 "1 has a force par FIG. 12 is a cross-sectional view taken along line XI-XE of FIG.

FIGS. 13 to 16 show another embodiment of a pillow-shaped bearing box having a different base shape. FIGS. 13 and 15 are front views, and FIGS. 14 is a sectional view of FIG. 13 and FIG. 6 is a sectional view of FIG.

FIGS. 17 and 18 are a top view and a longitudinal sectional view of a flange type bearing housing according to the present invention, wherein FIG. 17 shows a case of a rhombus and FIG. 18 shows a case of a square shape. .

FIGS. 19 to 21 are cross-sectional views of a flange type bearing box showing another embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the pillow-shaped bearing box according to the present invention is provided with a housing (11) for accommodating a bearing and a base (20) having a fixing bolt hole (5). It is fitted into the opening (40) on the upper surface and joined together by welding to form a pillow-shaped bearing box.

The housing (11) is made by cutting a tube having a predetermined inner diameter and wall thickness to form a housing material († 0), or by manufacturing a rib-shaped steel plate into a ring shape. Here, as shown in Fig. 2 and Fig. 8, the inner peripheral surface is added to the concave spherical surface so that it can be fitted to the outer peripheral surface of the convex spherical surface of the bearing, and the bearing is also housed. (11) Used to fit inside

(__OMPI The fitting entrance (3) to be used is provided by expanding two diametrical locations on one end face of the housing (11) by press molding.

Next, as shown in Fig. 3, the base <20) is formed by pressing a steel plate having a predetermined thickness to form a rectangular box having a bottom portion opened.

5, a rectangular opening (40) is formed in the upper surface of the central portion so that the lower end of the housing (11) can be fitted therein, and a central portion of the opening (40>) is provided. The upper surface plate is curved in accordance with the curvature of the inner circumferential surface so that the inner circumferential surface at the lower end of the fitted housing (11) does not sink into the opening (40). And

The fixed peripheral port hole (5) for use at a predetermined diameter is drilled at two or more places with a predetermined diameter.

In this way, the housing (11) and the base (20) are manufactured as separate parts, and then they are joined together and assembled into a bearing housing. First, as shown in FIG. ). The lower end of the housing (11) fitted into the is (40) is welded from the open back side of the base (20) to the entire circumference of the opening (40). Therefore, sufficient welding strength and high assembly dimensional accuracy are obtained by core machining after welding.

The flange type bearing according to the present invention assembled as described above

The 20 boxes can be manufactured very easily because they only need to be fitted and joined to the housing (11) made from the Kaburagi pipe and the flange base (20) to be T-less molded. It is an excellent bearing box that exhibits sufficient rigidity during operation of the bearing unit. In the above-described embodiment, an example in which the inner peripheral surface of the housing (11) is machined into a concave spherical surface by five machining is shown. It can be used as an eight housing (") for a bearing on a cylindrical outer periphery. That is, as shown in Fig. 4, an outer ring (6a) of a cylindrical outer peripheral surface is provided in a housing (11). ) And the inner ring (6b) are inserted. To secure the bearing, a dust proof force pad (70) is fixed to both end faces of the housing (11) by, for example, a port. A configuration in which the inner peripheral surface projection of (70) is brought into contact with and fixed to the end surface of the outer surface (6a) of the bearing can be used.

In the above, the case where a base consisting of a bottomless box is used is shown, but it is a matter of course that the bottomed box may be used. The base (21) of the thick plate shown in FIG.

That is, the base (21) cuts a thick steel plate and punches a predetermined opening (41) in the center of the base. The housing (11) has a 'spherical seat' for fitting a bearing. The housing (3) and the housing (11) are formed, and the housing (11) is inserted into the opening (41) of the base (21), and the rear surface of the base (21) is inserted. In this case as well, the welding strength of the circumference, etc., and the high dimensional accuracy due to machining after welding can be obtained, and the impact resistance is also improved. Immediately, the occurrence of cracks is reduced.

Next, another pillow type bearing housing according to the present invention will be described.

As shown in Fig. 6, as in the previous example, the housing (12) for accommodating the bearing is connected to the opening on the upper surface of the base (22) having the fixing port hole (5). (42) and joined together by welding to form a pillar-shaped bearing box.

The housing (12) uses a sales tube having a predetermined inner diameter and wall thickness.

OMPI It is cut into a housing material, or a rib-shaped steel plate is made into a ring shape. Here, the inner peripheral surface is machined into a concave spherical surface so that it can be fitted to the outer periphery of the convex spherical surface of the bearing. In addition, two inlets (3) in the diametrical direction on one end face of the eight housings (12) are machined to provide a fitting inlet (3) used for inserting the bearing into the housing (12). . The housing (12) is chamfered to prevent the edge on the inner peripheral side of the end face from being damaged and deformed due to healing or the like, making it difficult to insert the bearing. Next, the base (22) is cut into strips having a thickness corresponding to the desired rigidity of the bearing, and port holes for fixing when used as a bearing unit at both ends in the longitudinal direction. (5) is perforated with a predetermined diameter in two places, and the remaining central part is formed so as to be a convex part, and a rectangular opening (42) is formed so that the lower circular arc part of the housing (12) can be fitted. The upper surface plate around this opening (42) is curved along the curvature of the circumferential surface inside the lower end of the housing (12), and the inside of the lower end of the fitted housing (12) is bent. It is configured so that the circumferential surface does not enter into the opening (42).

In other words, the base (22) made of a flat plate has a central portion protruding except for the fixing port hole (5), and the portion having the opening is the inner diameter and outer diameter of the housing (12). The peripheral arc is formed by the diameter, and the opening (42) from the fixing port hole (5) is open at the end surface (42). The rising height of the legs (22a) is arbitrarily made according to the desired center height of the bearing and the thickness of the base (22). May be set to zero.

OMPI In this way, the housing (12) and the base (22) are produced as separate parts, and then they are joined together and assembled into a bearing box. As shown in the figure, the lower end of the housing (12) fitted in the opening (42) of the base (22) is opened from the open back side of the base (22) here. Part (42) is welded and joined over the entire circumference, so that sufficient welding strength and high assembly dimensional accuracy can be obtained by machining after welding.

Also, here, the arc center and the leg of the housing (12)

(22a) each straight line connecting the respective predetermined arc center of the housing (12) Ri Contact set the angle intersecting the vertical line of the circular arc center 30 ^beta, the housings (12) and the base over the scan (22) This is extremely effective in improving the strength when jointed together.

The pillow-shaped bearing box according to the present invention assembled as described above fits and joins the housing (12) made of steel pipe and the flange base (22) press-molded. Therefore, it is an excellent bearing box that can be manufactured extremely easily, and that exhibits high dimensional accuracy and sufficient durability when operating the bearing unit. Further, in order to integrally join the housing and the base, in addition to the above-described method of fitting the housing into the opening (42), even if the following method is used, a pillow such as a circumference is used. One-piece bearing box can be constructed ο

For example, as shown in FIG. 9, the base (23) has a center portion curved in a circumferential circle with the housing (12), but is simply flat without the above-mentioned opening. It is also possible to adopt a configuration in which the housing (12) is composed of a curved surface and placed on this curved surface and joined together.

O PI In addition, instead of the ring opening punched out from the center of the base as described above, a groove into which the housing can be fitted is provided, and the housing is fitted into this groove of the base and joined together. It is good to do it.

Next, as shown in the embodiment of FIG. 10, the grease nipple (9) required for use as a bearing unit is formed on the outer peripheral surface of the housing (13). Can be reached at the position. Also, a dustproof cover (（) can be easily attached to the bearing box. For example, in the case of the pillow-type bearing box shown in FIGS. 11 and 12, a groove is provided around the side end surface of the housing (13), and the peripheral end of the force pad (71) is fitted into this groove. The housing (13) has a configuration in which a spherical seat is provided on the inner peripheral surface to fit and hold the bearing. Therefore, the outer circumference of the outer edge (6a) of the bearing has a convex spherical shape.

In the above embodiment, an example was shown in which the inner peripheral surface of the housing (13) was machined into a concave spherical surface to form a spherical seat. However, the inner peripheral surface was processed into a cylindrical shape, and the cylindrical outer peripheral bearing was formed. That is, a bearing having an outer ring with a cylindrical outer peripheral surface is inserted into the housing, and a dust proof force par is applied to both end surfaces of the housing to fix the bearing. The structure in which the port is stopped and the projection of the inner peripheral surface of the force par is abutted against the end surface of the outer ring of the bearing can be used as in the example of FIG.

As described in detail above, the pillar-shaped bearing housing according to the present invention is formed by joining a part of a strip-shaped base to one circumferential portion of a housing made of a short cylindrical body. The main point is that the bearing is configured in a die-shaped bearing box, but the example of a pillow type bearing box shown in Figs. 13 to 16 is also similar.

OMPI

Les, W1PO The examples shown in Figs. 13 and 14 use two letter-shaped base members (23), each of which is curved along the outer circumferential arc surface of the housing (13). The uprights of the base members (23) and (23) are integrally joined to the housing (13), and the housing (13) is gripped by the base members (23> and (23). In this case as well, high rigidity, impact resistance, and precision can be obtained by integrally joining the base and housing together. The cover (72) is fitted into the housing (.13), and has a seal that comes into contact with the shaft (8) around the other cover.

io In the examples shown in Fig. 15 and Fig. 16, one base (24) is wrapped around one lower end of the housing (14) 'and opposite to the other lower end of the housing (14)'. The entire circumferential surface of the housing (14), except for the lower arc, is covered with the base (24). In this case, too, high strength is obtained.

Next, an embodiment of a flange type bearing box according to the present invention will be described with reference to the drawings.

As shown in FIG. 17, the flange type bearing box according to the present invention includes a housing (15) for receiving a bearing, for example, a diamond-shaped flanged flange having a fixing port hole (5). It is inserted into the opening (43) drilled in the center of the base (25) and joined together by welding to form a flange type bearing box.

The housing (15) is obtained by cutting a tube having a predetermined inner diameter and wall thickness, or by forming a lip-shaped ridged plate into a ring shape. Into a concave spherical surface so that it can be fitted to the outer periphery of the convex spherical surface, and further, fit the bearing into the housing (15). The fitting inlet (3) used for the installation is cut out at two diametrical locations on one end face of the housing (15).

Next, the flange base (25) is formed by cutting a steel plate having a predetermined thickness into a predetermined shape such as a rhombus, a square, or a circle, and the whole of the housing (15) described above at the center thereof, that is, the outer periphery thereof. An opening (43) into which the surface can be inserted is drilled, and a fixing port hole (5) for use as a bearing unit is drilled at a multiple diameter at a predetermined diameter. Has been.

In this way, the housing (15) and the flange base (25) are manufactured as separate parts, and then they are joined together and assembled into a bearing box. First, as shown in FIG. As shown, the flange (25) is fitted into the opening (43) of the flange base (25) such that the center of the outer periphery of the housing (15) is in contact with the flange base (25). Opening (43) Welded and joined all around

¾ o

Accordingly, sufficient welding strength and high assembly dimensional accuracy have been obtained by machining after welding. In addition, the outer surface of the housing (15) protruding from the flange base (25) can be used as a sealing part so that it can enter into a hole provided in the frame of the equipment.

Next, in Fig. 18, the entire housing (15) is fitted into the opening (4) of the rectangular flange base (26), and the circular end face and the bottom side of the flange base (26) are aligned with each other. It is adjusted to be flat, and the outer periphery of the housing (15) is welded to the flange base (26) from the other side.

OMPI The flange type bearing box according to the present invention assembled as described above has a housing (15) made of steel pipe and a flange base (25> (26) formed by press molding. This is a perfect flange type bearing box that can be manufactured very easily because it only needs to be fitted and joined, and yet has sufficient dimensional accuracy and sufficient durability during operation of the bearing unit. .

The above shows an example in which the entire housing (15) is fitted into the opening (43) (44) of the flange base (25) (26), but the housing (15) is fitted to the flange base. 15) may be placed and joined together.

For example, in FIG. 19, a flat flange base (27) having a predetermined shape is provided with an opening (45) that at least does not fit the entire housing (15). The housing (15) is placed around the part (45), and the outer circumference of the lower end and the flange base are placed.

(27) and are welded together. In this case as well, high welding dimensional accuracy can be obtained by the welding strength of the circumference, etc., and machining after welding. Further, the above-mentioned opening (45) may be made to protrude by press molding or the like, and a housing may be welded to the periphery of the opening (45) to form an integral body.

Also, as shown in Fig. 20, the flange base (28) is press-molded to provide an opening (46), and the thick part of the peripheral part (46) is further raised. It is also good to place the housing (15) on this thick part and weld it from inside and outside.

Also, as shown in Fig. 2, the opening (47) provided in the flange base (29) is formed as a so-called pearling hole, into which the housing (15) is inserted. Into the outer periphery of the housing (15)

O PI The welded circular end faces are welded and joined together, and a predetermined distance is provided between the center face of the bearing and the housing (15) mounting face. It is possible to diversify the installation range α

In the above embodiment, the inner peripheral surface of the housing (15) is machined into a cylindrical shape and used as a bearing housing (15>) having a cylindrical outer shape. 15) Incorporate a bearing having a cylindrical outer peripheral surface into the inside, and use a force pad that also serves as dust proof to fix the bearing. A configuration in which the protrusion on the inner peripheral surface of the bar abuts on the end surface of the bearing and is fixed is available.

One OMH-WIPO.

Claims

" The scope of the claims

The housing consists of a housing of a short cylindrical body that fits and holds the bearing on the inner peripheral surface, and a base provided with an opening or groove for fitting the housing and a port hole for fixing. Is a bearing in which the housing is fitted or mounted on the groove and integrated.

Ί¾

(2) From the base of a plate or box body provided with a housing of a short cylindrical body that fits and holds the bearing on the inner peripheral surface, an opening for fitting the lower part of the housing, and a fixing port hole In other words, a pillow-shaped bearing box that is integrated by fitting a housing into the base opening.

3 It is composed of two members: a housing of a short cylindrical body that fits and holds the bearing on the inner peripheral surface, and a base consisting of a rectangular flat plate and having port holes for fixing at both ends in the longitudinal direction. An opening is provided in the center of the base to fit the lower end of the housing, and the housing is fitted into the opening by fitting the center of the base having the opening into the opening. A pillow-shaped bearing box in which a jing and a base are joined together.

The pillow solid bearing according to claim 3, wherein a groove is provided in the base in which the lower end of the housing is inserted instead of the opening of the base.

(5) The pillow-shaped bearing box according to (3), wherein the housing is mounted and joined together with the center being curved concentrically with the housing without providing an opening in the base. .

6 Housing of a short cylindrical body that fits and holds the bearing on the inner peripheral surface, and an opening or at least a housing that fits the entire housing.

_O PI フランジ. Consists of a flange base with an opening into which the jing circular surface does not fit and a fixing port hole. The housing is inserted into the above-mentioned opening and joined or placed and joined around the opening to form an integral part. New flange type bearing box.

7. The flange type bearing according to claim 6, wherein the periphery of the opening of the flange base is protruded from the position of the port hole, and the housing is placed or joined around the opening or fitted and joined to the opening. box.

One OMH