JPS5932713U - Hydrodynamic plain bearing - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

Fig. 1 shows an embodiment of this invention for a radial plain bearing, Fig. 1a is a sectional view, Fig. 1 and C are exploded views of the radial inner surface, respectively, and Fig. 2 is an example of this invention for a linear plain bearing. Fig. 3 shows an embodiment of the invention, in which Figure a is a cross-sectional view, Fig. 3 is a developed view of the linear inner surface, and Figure 3 shows an embodiment of the invention for a radial linear plain bearing. Figure a is a sectional view, Figures 4 and 4 are exploded views of the radial and linear inner surfaces, respectively, and Figure 4 shows an embodiment of this invention for a thrust sliding bearing. and C are respectively plan views of the thrust bearing surface, and FIGS. 5 and 6 are
Figure 5a shows other implementation examples of this invention.
6A is a sectional view, FIGS. 5A and 6A are developed views of the radial inner surface, and FIGS. 5C and 6C are sectional views of FIGS. 5A and 6A, respectively. . In the figure, 10 is the shaft body, 11, 12, 13, 14 are the radial outer surface, linear outer surface, radial/linear outer surface, thrust end surface of the shaft body, 20 is the radial sliding bearing, 2
1 is its radial inner surface, 30 is a linear bell bearing, 3
1 is its linear inner surface, 40 is a radial/linear underbelly bearing, 41 is its radial/linear inner surface, 50 is a thrust sliding bearing, 51 is its thrust bearing surface, 60°7
0 is a groove for generating dynamic pressure. Figure 1 a 11) -TE alliance t' AS O) () () 15 20 , HANOCAKI proverb go' - h h'' +4 30 ” c Correction 1987. 2.16 The scope of claims for utility model registration shall be amended as follows. O Utility Model Registration Claims) The shaft body and the bearing are relatively capable of any one of forward and reverse rotational motion, linear motion, and rotational linear motion through mutual sliding surfaces, and The surfaces are relatively movable, and an arrowhead-shaped groove for generating dynamic pressure is formed on at least one of the sliding surfaces, and the miso for generating dynamic pressure is
Dynamic pressure type grooves, characterized in that grooves whose arrow tips coincide with one movement direction of the shaft body and the bearing, and grooves whose arrow tips coincide with the other movement direction are arranged on the sliding surface, respectively. Veri bearing. (2) A hydrodynamic sliding bearing according to claim 1 of the utility model registration claim, in which grooves whose arrowheads coincide with one direction of movement and grooves whose arrowheads coincide with the other direction of movement are arranged at intervals. . (3) The dynamic pressure type belli bearing according to claim 1 of the utility model registration claim, in which the arrowhead direction of which coincides with one movement direction and the arrowhead whose arrowhead direction corresponds with the other movement direction are connected and arranged. . (4) Utility model registration claims Paragraphs 1 to 4, in which a lubricant reservoir deeper than the depth of the lubricant reservoir for generating dynamic pressure is provided at both ends of at least one of the sliding surfaces of the shaft body and the bearing. Dynamic pressure type sliding bearing according to any of Item 3. (5) The sliding surface of at least one of the shaft body and the bearing is provided with a recessed portion deeper than the groove for generating dynamic pressure between the grooves for generating dynamic pressure.Claim 1 of the Utility Model Registration Claim: 3. The hydrodynamic sliding bearing according to any one of items 3 to 3.

Claims (5)

[Scope of utility model registration request] (1) The shaft body and the bearing are relatively capable of any one of rotational movement in forward and reverse directions, linear movement, and rotational linear movement through mutual sliding surfaces, and at least one of the sliding surfaces, An arrowhead-shaped miso for generating dynamic pressure is formed. A hydrodynamic sliding bearing characterized in that matching grooves are arranged in the circumferential direction of the sliding surface. (2) The dynamic pressure type bellows according to claim 1 of the utility model registration claim, in which grooves whose arrowheads coincide with one direction of movement and grooves whose arrowheads coincide with the other direction of movement are arranged at intervals. bearing. (3) The hydrodynamic sliding bearing according to claim 1, in which grooves whose arrowheads coincide with one direction of movement and grooves whose arrowheads coincide with the other direction of movement are connected and arranged. (4) An annular groove deeper than the depth of the groove for generating dynamic pressure is provided at both ends of at least one of the sliding surfaces of the shaft body and the bearing. Dynamic pressure type belly bearing as described in any of the above.゛ (5) The sliding surface of at least one of the shaft body and the bearing is provided with a recessed portion deeper than the depth of the groove for generating dynamic pressure between the groove for generating dynamic pressure.
Dynamic pressure type belly bearing according to any one of Items 1 to 3.