阅读说明：本技术 一种旋盖式关节轴承的锁紧装置及方法 (Locking device and method for swivel joint bearing ) 是由 叶焱生 郭露 吴临峰 徐继朋 于 2021-06-11 设计创作，主要内容包括：本发明属于轴承装配技术领域,具体涉及一种旋盖式关节轴承的锁紧装置及方法。旋盖式关节轴承锁紧过程中常常因为卡槽接触区域深度尺寸小,且伴有斜角,造成操作困难。本发明旋盖式关节轴承的锁紧装置,包括导杆、力矩转接杆和底座,导杆顶部具有外六方,其下端杆部包括大径的光杆部分和小径的螺杆部分；力矩转接杆具有外六方,上部的小径阶梯孔与光杆部分间隙配合,力矩转接杆的下端面具有能够与锁紧螺母的卡槽适配的上凸台；底座具有外六方,中部的中径阶梯孔与光杆部分间隙配合,下部的小径螺纹孔与螺杆部分螺纹连接,底座的上端面具有能够与轴承基体的卡槽适配的下凸台。固定快速准确,装配过程稳定、可靠,装配精度控制一致性好。(The invention belongs to the technical field of bearing assembly, and particularly relates to a locking device and a locking method for a swivel type joint bearing. The depth of the contact area of the clamping groove is small and an oblique angle is accompanied, so that the operation is difficult in the locking process of the swivel-cap-type oscillating bearing. The locking device of the swivel joint bearing comprises a guide rod, a moment adapter rod and a base, wherein the top of the guide rod is provided with an outer hexagon, and the rod part at the lower end of the guide rod comprises a polished rod part with a large diameter and a screw rod part with a small diameter; the torque adapter rod is provided with an outer hexagon, a small-diameter stepped hole at the upper part of the torque adapter rod is in clearance fit with the polished rod part, and the lower end surface of the torque adapter rod is provided with an upper boss which can be matched with a clamping groove of the locking nut; the base has outer hexagonal, the partial clearance fit of the pitch diameter shoulder hole and polished rod at middle part, the path screw hole and the screw rod part threaded connection of lower part, the up end of base have can with the lower boss of the draw-in groove adaptation of bearing base member. The fixing is quick and accurate, the assembling process is stable and reliable, and the assembling precision control consistency is good.)

1. The utility model provides a locking device of spiral cover formula joint bearing for lock the spiral cover formula joint bearing who installs in installation base member (4), wherein this spiral cover formula joint bearing's exterior structure mainly includes bearing base member (5) and lock nut (6), and the two passes through threaded connection, wherein all is equipped with the draw-in groove of circumference distribution at the terminal surface of bearing base member (5) and lock nut (6), its characterized in that:

the locking device comprises a guide rod (1), a moment adapter rod (2) and a base (3), wherein the top of the guide rod (1) is provided with an outer hexagon, and the rod part at the lower end of the guide rod comprises a polished rod part with a large diameter and a screw rod part with a small diameter; the torque adapter rod (2) is provided with an outer hexagon, a small-diameter stepped hole in the upper portion is in clearance fit with the polished rod, a large-diameter stepped hole in the lower portion can accommodate a structure on one side of the locking nut (6), and an upper boss capable of being matched with a clamping groove of the locking nut (6) is arranged on the lower end face of the torque adapter rod (2); the base (3) is provided with an outer hexagon, a large-diameter stepped hole in the upper portion can accommodate the structure on one side of the bearing base body (5), a middle-diameter stepped hole in the middle portion is in clearance fit with the polished rod portion, a small-diameter threaded hole in the lower portion is in threaded connection with the screw rod portion, and the upper end face of the base (3) is provided with a lower boss which can be matched with a clamping groove of the bearing base body (5).

2. The locking device of claim 1, wherein: the gap between the light beam part and the moment adapter rod (2) is not more than 0.02 mm.

3. The locking device of claim 1, wherein: the clearance between the polish rod part and the intermediate diameter stepped hole of the base (3) is not more than 0.02 mm.

4. The locking device of claim 1, wherein: the outer hexagonal size of the moment adapter rod (2) is larger than that of the guide rod (1).

5. The locking device of claim 1, wherein: the coaxiality of the bearing base body (5) and the locking nut (6) is ensured through the connection of the guide rod (1) and the base (3).

6. The locking device of claim 1, wherein: the locking torque of the bearing base body (5) and the locking nut (6) is adjusted by limiting the rotation of the base (3) and combining the rotation of the torque adapter rod (2).

7. The locking device of claim 1, wherein: the threaded connection length of the guide rod (1) and the base (3) is required to meet the requirement that at least one part of the polish rod is inserted into the intermediate-diameter stepped hole.

8. A method of locking a swivel-type joint bearing using a locking device according to any one of claims 1 to 7, comprising the steps of:

step 1, clamping a base (3) and placing a clamping groove of a bearing base body (5) on an upper boss of the base (3);

step 2, inserting a lower boss of the torque adapter rod (2) into a clamping groove of the locking nut (6);

step 3, inserting the guide rod (1) into the torque adapter rod (2), the bearing through hole and the base (3) in sequence and then connecting the guide rod with the base (3) in a threaded manner;

step 4, rotating the torque adapter rod (2) to apply torque;

and 5, when the torque meets the design requirement, fixing the bearing and disassembling the fixing device.

9. The locking method according to claim 8, characterized in that: in the locking process, the lower end face of the outer hexagon of the guide rod (1) and the upper end face of the torque adapter rod (2) are kept through timely rotating the guide rod (1), and the gap between the lower end face and the upper end face is smaller than 0.5 mm.

Technical Field

The invention belongs to the technical field of bearing assembly, and particularly relates to a locking device and a locking method for a swivel type joint bearing.

Background

At present, a plurality of bearing products are contained in a mechanical assembly system, wherein for a rotary cover type joint bearing, referring to fig. 1, a movable (swinging) columnar structure body is arranged in the middle of the rotary cover type joint bearing, the columnar structure body has a relative swinging function relative to an external structure of the rotary cover type joint bearing, the whole rotary cover type joint bearing is provided with a through hole, the external structure of the rotary cover type joint bearing mainly comprises an end part locking nut 6 and a bearing base body 5, the end part locking nut 6 and the bearing base body 5 are in locking connection through threads, clamping grooves are formed in the end part surfaces of the locking nut 6 and the bearing base body 5, the depth of each clamping groove is not more than 3mm, the clamping grooves are irregular, and the clamping grooves often have oblique angles of 30 degrees, 45 degrees and 60 degrees.

At present, after the bearing is integrally installed and fixed on the installation base body 4, the locking nut 6 and the bearing base body 5 need to be locked, and the operation difficulty is caused because the depth size of a clamping groove contact area is small and an oblique angle is accompanied in the locking process. In addition, the requirements on the technical level and technical experience of operators are high in the locking process, the slipping phenomenon is easily caused, the end faces of the bearing locking nut 6 and the bearing base body 5 are scratched, the product yield is low, and the product assembly quality and efficiency are seriously influenced.

Disclosure of Invention

The invention provides a locking device and a locking method for a rotary cover type knuckle bearing, which solve the problem of difficult locking operation at present and have the advantages of easy operation and high installation efficiency.

The locking device of the swivel joint bearing is used for locking the swivel joint bearing which is arranged in an installation base body, wherein the external structure of the swivel joint bearing mainly comprises a bearing base body and a locking nut which are connected through threads, clamping grooves which are distributed circumferentially are arranged on the end faces of the bearing base body and the locking nut, the locking device comprises a guide rod, a moment adapter rod and a base, the top of the guide rod is provided with an outer hexagon, and the rod part at the lower end of the guide rod comprises a polished rod part with a large diameter and a screw rod part with a small diameter; the torque adapter rod is provided with an outer hexagon, a small-diameter stepped hole at the upper part is in clearance fit with the polished rod part, a large-diameter stepped hole at the lower part can accommodate a structure at one side of the locking nut, and an upper boss which can be matched with a clamping groove of the locking nut is arranged on the lower end surface of the torque adapter rod; the base has outer hexagonal, and the major diameter shoulder hole on upper portion can hold the structure of bearing base member one side, the pitch diameter shoulder hole in middle part with polish rod part clearance fit, the minor diameter screw hole of lower part with screw rod part threaded connection, the up end of base have can with the lower boss of the draw-in groove adaptation of bearing base member.

Advantageously, the amount of clearance between the polished rod portion and the torque adapter rod is no more than 0.02 mm.

Advantageously, the light beam portion is spaced from the intermediate diameter stepped hole of the base by an amount of not more than 0.02 mm.

Advantageously, the outer hexagonal dimension of the torque adapter rod is greater than the outer hexagonal dimension of the guide rod.

Advantageously, the coaxiality of the bearing base and the lock nut is ensured by the connection of the guide rod and the base.

Advantageously, the locking torque of the bearing base and the locking nut is adjusted by limiting the rotation of the base and by engaging the rotation of the torque adapter rod.

Advantageously, the threaded connection of the guide rod to the base is of a length such that at least a portion of the polish rod is inserted into the stepped bore of the intermediate diameter.

The invention also provides a locking method of the rotary cover type oscillating bearing, which is characterized by comprising the following steps of:

step 1, clamping a base and placing a clamping groove of a bearing matrix on an upper boss of the base;

step 2, inserting the lower boss of the torque adapter rod into the clamping groove of the locking nut;

step 3, inserting the guide rod into the torque adapter rod, the bearing through hole and the base in sequence and then connecting the guide rod with the base in a threaded manner;

step 4, rotating the torque adapter rod to apply torque;

and 5, when the torque meets the design requirement, fixing the bearing and disassembling the fixing device.

Advantageously, in the locking process, the guide rod is timely rotated, the lower end face of the outer hexagon of the guide rod and the upper end face of the torque adapter rod are kept, and the gap between the lower end face of the outer hexagon of the guide rod and the upper end face of the torque adapter rod is smaller than 0.5 mm.

The invention has the beneficial effects that: the fixing is quick and accurate, the assembling process is stable and reliable, the control consistency of the assembling precision is good, and the assembling efficiency and the assembling quality are also obviously improved.

Drawings

The illustrative examples, as well as a preferred mode of use, further objectives, and descriptions thereof, will best be understood by reference to the following detailed description of an example of the present invention when read in conjunction with the accompanying drawings, wherein:

FIG. 1 is an oblique view of a swivel-type joint bearing;

FIG. 2 is a schematic view of locking using the locking device of the present invention;

FIG. 3 is a front view of the guide bar;

FIG. 4 is a left side view of the guide bar;

FIG. 5 is an end view of the torque adapter rod;

FIG. 6 is a left side cross-sectional view of the torque adapter rod;

FIG. 7 is a left side view of FIG. 6;

FIG. 8 is an end view of the base;

FIG. 9 is a left side cross-sectional view of FIG. 8;

fig. 10 is a left side view of fig. 9.

Wherein, 1-guide rod, 2-torque adapter rod, 3-base, 4-installation base, 5-bearing base and 6-locking nut

Detailed Description

The disclosed examples will be described more fully with reference to the accompanying drawings, in which some (but not all) of the disclosed examples are shown. Indeed, many different examples may be described and should not be construed as limited to the examples set forth herein. Rather, these examples are described so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Referring to fig. 2, in an embodiment of the present invention, when the swivel type spherical plain bearing is locked, the locking device includes a guide rod 1, a moment adapter rod 2, and a base 3.

The upper portion of the guide rod 1 is an outer hexagon, the middle portion of the guide rod is a polished rod portion, the lower portion of the guide rod is a screw rod portion, the polished rod portion and an inner hole of the torque adapter rod 2 are in clearance fit, the clearance amount is not larger than 0.02mm, the polished rod portion and a middle hole of the base 3 are in clearance fit, the clearance amount is not larger than 0.02mm, and the screw rod portion is connected with a lower threaded hole of the base 3.

The moment adapter rod 2 is internally provided with a step through hole, the upper part of the moment adapter rod is an outer hexagon, the bottom end surface of the moment adapter rod is circumferentially provided with an upper boss matched with the clamping groove of the locking nut 6, and the size of the outer hexagon of the moment adapter rod 2 is larger than that of the outer hexagon of the guide rod 1.

The inside step through-hole that has of base 3, the up end is equipped with along circumference with the lower boss of the draw-in groove adaptation of bearing base member 5, the lower part of base 3 is outer hexagonal, and inside has the screw hole.

On the other hand, when the locking device is used for locking the swivel-cap-type joint bearing, the invention comprises the following steps:

step 1, clamping an outer hexagonal structure of a base 3 by using a vice, and placing a clamping groove of a bearing matrix 5 on an upper boss of the base 3;

step 2, inserting the lower boss of the torque adapter rod 2 into the clamping groove of the locking nut 6;

step 3, after the guide rod 1 is sequentially inserted into the torque adapter rod 2, the bearing through hole and the base 3, the threaded part of the guide rod 1 is in threaded connection with an inner hole of the base 3;

step 4, using a universal torque wrench to act on the outer hexagon of the torque adapter rod 2 and applying torque;

and 5, when the torque meets the design requirement, fixing the bearing and disassembling the fixing device.

Different examples of the systems, devices, and methods disclosed herein include various components, features, and functions. It should be understood that the various examples of the systems, devices, and methods disclosed herein may include any of the components, features, and functions of any of the other examples of the systems, devices, and methods disclosed herein in any combination or sub-combination, and all such possibilities are intended to fall within the scope of the present invention.

The description of the different advantageous arrangements has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the examples in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Additionally, the different advantageous examples may describe different advantages as compared to other advantageous examples. The example or examples selected are chosen and described in order to best explain the principles of the examples, the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various examples with various modifications as are suited to the particular use contemplated.