CN218935016U

CN218935016U - Crossed roller bearing

Info

Publication number: CN218935016U
Application number: CN202223534038.6U
Authority: CN
Inventors: 韩传收
Original assignee: Luoyang Yufanda Precision Bearing Manufacturing Co ltd
Current assignee: Luoyang Yufanda Precision Bearing Manufacturing Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-04-28
Anticipated expiration: 2032-12-29

Abstract

The application relates to a crossed roller bearing, including outer lane, inner circle and a plurality of rolling element, form the raceway between outer lane inner wall and the inner circle outer wall, be equipped with the holder in the raceway, on the holder was located to a plurality of rolling element, radially offered the dress hole that is used for filling the rolling element on the outer lane, dress hole and raceway intercommunication were equipped with in the dress hole and can be to the spacing stopper of rolling element, are equipped with a plurality of first installation through-holes along its circumference equipartition on the outer lane axial terminal surface, are equipped with a plurality of second installation through-holes along its circumference equipartition on the inner circle axial terminal surface. The end face installation can be carried out, and the tightness is good.

Description

Crossed roller bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a crossed roller bearing.

Background

The crossed roller bearing has good rigidity, is generally used for industrial robots, manipulators, rotary tables and the like, and comprises an inner ring, an outer ring and a plurality of rollers positioned between the inner ring and the outer ring, wherein a bearing seat is required to be used for mounting the bearing, however, in some occasions, the bearing seat cannot be mounted, the bearing needs to be subjected to end face mounting, and the bearing cannot be mounted.

Disclosure of Invention

The utility model provides a crossed roller bearing capable of performing end face installation aiming at the problems existing in the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a crossed roller bearing, includes outer lane, inner circle and a plurality of rolling element, form the raceway between outer lane inner wall and the inner circle outer wall, be equipped with the holder in the raceway, a plurality of rolling elements are located on the holder, radially set up the filling hole that is used for filling the rolling element on the outer lane, filling hole and raceway intercommunication are equipped with in the filling hole and can be to the spacing stopper of rolling element, its characterized in that: the outer ring is provided with a plurality of first mounting through holes along the circumference of the outer ring, and the inner ring is provided with a plurality of second mounting through holes along the circumference of the inner ring.

Preferably, the first mounting through hole and the second mounting through hole are both in a step shape.

Preferably, the first mounting through hole is parallel to the central axis of the bearing, and the second mounting through hole is parallel to the central axis of the bearing.

Preferably, the outer ring is provided with a positioning hole, the axis of the positioning hole is parallel to the central axis of the bearing, a fixing pin is installed in the positioning hole, and the fixing pin penetrates through the plug.

Preferably, the fixing pin is a taper pin.

Preferably, the upper and lower axial end surfaces of the outer ring are respectively provided with an outer annular groove, the upper and lower axial end surfaces of the inner ring are respectively provided with an inner annular groove, the corresponding inner annular grooves and the outer annular grooves form a sealing groove, and a sealing element is arranged in the sealing groove.

Preferably, a plurality of oil holes are uniformly formed in the outer circumferential surface of the outer ring at intervals, and the oil holes are communicated with the rollaway nest.

The beneficial effects of the application are that: 1. the bearing end face mounting structure has the advantages that the first mounting through hole and the second mounting through hole are formed, the bearing end face mounting is facilitated, the bearing outer ring or the bearing inner ring can be mounted and fixed under the condition that a bearing seat is not needed, and the mounting is convenient and flexible.

2. According to the novel bearing, the inner annular groove and the outer annular groove are formed to form the sealing groove, the sealing piece is installed in the sealing groove, dust, sand and other foreign matters are effectively prevented from entering the bearing, a good protection effect is achieved on the bearing, and the service life of the bearing is prolonged.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic view of a prior art crossed roller bearing.

The marks in the figure: 1. the outer ring, 101, the first installation through hole, 2, the inner ring, 201, the second installation through hole, 3, the rolling body, 4, the sealing element, 5, the oil filler point, 6, the fixed pin, 7, the locating hole, 8 and the plug.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-2, the embodiment of the application provides a crossed roller bearing, including outer lane 1, inner circle 2 and a plurality of rolling elements 3, form the raceway between outer lane 1 inner wall and the inner circle 2 outer wall, be equipped with the holder in the raceway, a plurality of rolling elements 3 are located on the holder, maintain steadily through the holder between a plurality of rolling elements 3, radially set up the dress hole that is used for filling rolling elements 3 on the outer lane 1, the axis of dress hole is mutually perpendicular with the central axis of bearing, dress hole and raceway intercommunication are equipped with the stopper 8 that can spacing to rolling elements 3 in the dress hole, be equipped with a plurality of first installation through-holes 101 along its circumference equipartition on the outer lane 1 axial terminal surface, be equipped with a plurality of second installation through-holes 201 along its circumference equipartition on the inner lane 2 axial terminal surface, first installation through-holes 101 and second installation through-holes 201 all are echelonment, this application makes things convenient for the bearing terminal surface to install through setting up first installation through-hole 101 and second installation through-holes 201, also can pass the fixed screw at the outer lane 1 through the fixed terminal surface that first terminal surface is fixed at the outer lane 1 through the fixed terminal surface that the second is fixed to the fixed terminal surface that need fix.

Wherein, first installation through-hole 101 is parallel with the central axis of bearing, and second installation through-hole 201 is parallel with the central axis of bearing, set up locating hole 7 on the outer lane 1, locating hole 7 axis is parallel with the central axis of bearing, installs fixed pin 6 in the locating hole 7, fixed pin 6 runs through stopper 8, fixed pin 6 is the taper pin, and stopper 8 is the cylindric lock, and stopper 8 and outer lane 1 are interference fit, can improve stopper 8 and outer lane 1 complex compactness, have improved the sealing performance of bearing, have also improved the compactness when outer lane 1 of bearing cooperates with rolling element 3, have improved the stability when bearing is used, have improved the life of bearing, and rolling element 3 is the commonly used roller of current crossed roller bearing, and this application is not at the detailed description here.

Specifically, be equipped with outer annular groove on the upper and lower axial terminal surface of outer lane 1 respectively, be equipped with interior annular groove on the upper and lower axial terminal surface of inner circle 2 respectively, corresponding interior annular groove, outer annular groove form the seal groove, be provided with sealing member 4 in the seal groove, sealing member 4 is the rubber material, more specifically, sealing member 4 is the rubber circle, foreign matter such as sealing member 4 effectively prevents dust, sand and soil gets into inside the bearing, can improve the sealed effect of cross roller bearing, improve the sealing performance of bearing, improved the life of bearing, it is to be noted that, this application does not detail the part and is prior art.

In addition, in the running process of the bearing, the sealing piece 4 can block mud of the outer ring of the bearing outside the sealing piece 4, so that the normal running of the bearing is prevented from being influenced by the mud, and even the bearing and other important parts are damaged, and on the other hand, lubricating oil in the inner ring 2 and the roller path can be prevented from leaking outside the bearing body, and the service life of the bearing is prolonged.

A plurality of oil holes 5 are uniformly formed in the outer circumferential surface of the outer ring 1 at intervals, the oil holes 5 are communicated with the roller path, and lubricating oil is conveniently added through the arrangement of the oil holes 5.

It should be noted that the above embodiments are only for illustrating the present utility model, but the present utility model is not limited to the above embodiments, and any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model falls within the protection scope of the present utility model.

Claims

1. The utility model provides a crossed roller bearing, includes outer lane (1), inner circle (2) and a plurality of rolling element (3), form the raceway between outer lane (1) inner wall and inner circle (2) outer wall, be equipped with the holder in the raceway, a plurality of rolling element (3) are located on the holder, radially set up the loading hole that is used for filling rolling element (3) on outer lane (1), loading hole and raceway intercommunication are equipped with in the loading hole and can be to spacing stopper (8) of rolling element (3), its characterized in that: a plurality of first mounting through holes (101) are uniformly distributed on the axial end face of the outer ring (1) along the circumference of the axial end face, and a plurality of second mounting through holes (201) are uniformly distributed on the axial end face of the inner ring (2) along the circumference of the axial end face.

2. A crossed roller bearing according to claim 1, wherein: the first mounting through hole (101) and the second mounting through hole (201) are both in a ladder shape.

3. A crossed roller bearing according to claim 1, wherein: the first mounting through hole (101) is parallel to the central axis of the bearing, and the second mounting through hole (201) is parallel to the central axis of the bearing.

4. A crossed roller bearing according to claim 2 or 3, wherein: the outer ring (1) is provided with a positioning hole (7), the axis of the positioning hole (7) is parallel to the central axis of the bearing, a fixing pin (6) is arranged in the positioning hole (7), and the fixing pin (6) penetrates through the plug (8).

5. A crossed roller bearing according to claim 4, wherein: the fixing pin (6) is a taper pin.

6. A crossed roller bearing according to claim 5, wherein: the sealing device is characterized in that outer annular grooves are respectively formed in the upper axial end face and the lower axial end face of the outer ring (1), inner annular grooves are respectively formed in the upper axial end face and the lower axial end face of the inner ring (2), sealing grooves are formed by the corresponding inner annular grooves and the outer annular grooves, and sealing elements (4) are arranged in the sealing grooves.

7. A crossed roller bearing according to claim 1, wherein: a plurality of oil holes (5) are uniformly formed in the outer circumferential surface of the outer ring (1) at intervals, and the oil holes (5) are communicated with the rollaway nest.