CN211291828U

CN211291828U - Pre-tightening and starting torque dynamic detection device of rolling bearing

Info

Publication number: CN211291828U
Application number: CN201921468909.4U
Authority: CN
Inventors: 荣俊林; 笪远勤
Original assignee: Shanghai Tianyong Intelligent Equipment Co Ltd
Current assignee: Shanghai Tianyong Intelligent Equipment Co Ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-08-18
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a antifriction bearing's pretension and start-up moment dynamic detection device, include: the driving part is connected with the bearing assembly through the bearing seat, the bottom of the bearing assembly is connected with the sleeve, and the sleeve is connected with the locking nut; the bearing assembly comprises an outer shaft, an inner shaft, a mandrel, a sliding key and an overrunning clutch, wherein the mandrel, the inner shaft and the outer shaft are sequentially sleeved from inside to outside, the inner shaft is connected with the outer shaft through the overrunning clutch, and the mandrel is connected with the inner shaft through the sliding key; the utility model provides a can carry out antifriction bearing's pretension and one set of device of starting torque dynamic detection.

Description

Pre-tightening and starting torque dynamic detection device of rolling bearing

Technical Field

The utility model belongs to the technical field of the mechanical skill and specifically relates to a antifriction bearing's pretension and start-up moment dynamic verification device is related to.

Background

After the rolling bearing is installed, the rolling elements and the bearing ring raceway are in a proper pre-compression state, which is called pre-compression of the rolling bearing, and the purpose of pre-compression of the bearing is to improve the precision and the supporting rigidity during operation and reduce vibration and noise. The pre-tightening force is used for giving proper pre-tightening force to the bearing by utilizing external force applied in the assembling process. Common axial pretensioning methods are: adding an adjusting ring to obtain proper pre-tightening; the proper pretightening force is obtained through controlling the starting torque.

At present, the technical scheme is that a set of independent turning moment detection device is used for dynamically detecting starting moment, and a set of independent tightening device is used for tightening a bearing locking nut.

However, the prior art has the following disadvantages: for narrow bearing space, two sets of devices are difficult to install; both sets of devices have position tolerance requirements; more prime movers; higher costs.

SUMMERY OF THE UTILITY MODEL

For solving foretell technical problem, the utility model provides a can carry out antifriction bearing's pretension and one set of device of starting torque dynamic detection, this antifriction bearing's pretension and starting torque dynamic detection device, include: the driving part and the bearing assembly are connected through the bearing seat, the bottom of the bearing assembly is connected with the sleeve, and the sleeve is connected with the locking nut;

the bearing assembly comprises an outer shaft, an inner shaft, a mandrel, a sliding key and an overrunning clutch, wherein the mandrel, the inner shaft and the outer shaft are sequentially sleeved from inside to outside, the inner shaft is connected with the outer shaft through the overrunning clutch, and the mandrel is connected with the inner shaft through the sliding key.

Pre-tightening a rolling bearing: power is sequentially transmitted to the bearing seat, the bearing assembly, the sleeve and the locking nut by the driving part, and pre-tightening is realized by locking the locking nut;

dynamic detection of starting torque: the motive power is transmitted to the outer shaft by the motive power element; when the sleeve is screwed down, power is transmitted to the inner shaft through the outer shaft and the overrunning clutch through the driving power part, is transmitted to the mandrel through the sliding key and is finally transmitted to the screwing sleeve.

Preferably, the prime mover comprises a tightening shaft.

Preferably, the prime mover comprises a servo motor, a speed reducer and a torque sensor; the servo motor, the speed reducer and the torque sensor are electrically connected in sequence.

Preferably, the utility model provides a antifriction bearing's pretension and start-up moment dynamic verification device still includes C type mounting panel, C type mounting panel set up in former driving link with the bearing frame junction.

The utility model discloses technical scheme is for prior art's beneficial effect: the utility model provides a device for dynamically detecting the pre-tightening and starting torque of a rolling bearing, which adopts a single driving part to realize the tightening and the starting torque detection, and functionally, two sets of devices in the prior art are combined into one set of device; structurally, the driving parts are saved, and the cost is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a dynamic pre-tightening and starting torque detection device for a rolling bearing in an embodiment of the present invention;

fig. 2 is a partially enlarged view of fig. 1.

In the drawings: 1. the device comprises a driving element, 2, a lifting device, 3, an outer shaft, 4, an inner shaft, 5, a mandrel, 6, a sleeve, 7, a bearing seat, 8, a sliding key, 9, an overrunning clutch, 10 and a locking nut.

The specific implementation mode is as follows:

the present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Please refer to fig. 1 and fig. 2, which show a structure diagram of a dynamic detection device for pre-tightening and starting torque of a rolling bearing, wherein the dynamic detection device comprises a driving element 1, a C-shaped mounting plate 2, an outer shaft 3, an inner shaft 4, a mandrel 5, a sleeve 6, a bearing seat 7, a sliding key 8, an overrunning clutch 9 and a lock nut 10, the driving element 1 and the bearing seat 7 are mounted on the C-shaped mounting plate 2, the outer shaft 3 is mounted on the bearing seat 7, the mandrel 5, the inner shaft 4 and the outer shaft 3 are sequentially sleeved from inside to outside, the inner shaft 4 is connected with the outer shaft 3 through the overrunning clutch 9, the mandrel 5 is connected with the inner shaft 4 through the sliding key 8, the sleeve 6 is mounted on the inner shaft 4, the lock nut 10 is disposed below the sleeve 6, and the C-shaped mounting.

In this embodiment, the prime mover is a tightening shaft.

In this embodiment, the overrunning clutch is a workpiece in the prior art, and the manner in which the inner shaft is connected with the outer shaft through the overrunning clutch is also a conventional connection manner in the prior art.

In this embodiment, the sliding key is a workpiece in the prior art, and the manner of connecting the mandrel with the inner shaft through the sliding key is also a conventional connecting manner in the prior art.

The features and functions of the present invention will be further understood from the following description.

The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.

Claims

1. The utility model provides a pretension and start-up moment dynamic verification device of antifriction bearing which characterized in that includes: the driving part and the bearing assembly are connected through the bearing seat, the bottom of the bearing assembly is connected with the sleeve, and the sleeve is connected with the locking nut;

2. The dynamic pre-tightening and starting torque detection device for a rolling bearing according to claim 1, wherein the prime mover comprises a tightening shaft.

3. The dynamic detection device for the pre-tightening and starting torque of the rolling bearing according to claim 1, wherein the prime mover comprises a servo motor, a speed reducer and a torque sensor; the servo motor, the speed reducer and the torque sensor are electrically connected in sequence.

4. The dynamic pre-tightening and starting torque detection device for the rolling bearing according to claim 1, further comprising a C-shaped mounting plate, wherein the C-shaped mounting plate is arranged at the joint of the driving member and the bearing seat.