Mechanical vibration measuring equipment for crossed roller bearing

Abstract

The utility model relates to a crossed roller bearing mechanical vibration measuring device, which belongs to the technical field of bearing measurement, and comprises a base, a bearing vibration measuring instrument body and a probe, the device comprises a base, a mounting rack arranged on the base, a positioning rack arranged on the mounting rack, a driving mechanism arranged on the mounting rack and a mounting shaft arranged on the driving mechanism, the driving mechanism is used for driving the mounting shaft to rotate, and the mounting shaft is provided with a fixing assembly used for fixing a bearing inner ring to be detected; the probe is arranged on the positioning frame; the base is also provided with a clamping assembly used for clamping the outer ring of the bearing to be tested, and the clamping assembly is provided with a radial loading mechanism used for applying a radial load to the bearing to be tested. The radial loading mechanism applies the radial load to the bearing to be measured, the probe collects the vibration signal and transmits the vibration signal to the measuring instrument body, and therefore the vibration characteristic under the working condition of bearing the radial load can be measured.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing measurement technical field, especially intermeshing roller bearing mechanical vibration measurement equipment. BACKGROUND

[0002] The bearing vibration measuring instrument is a special instrument for measuring bearing vibration speed, which usually adopts high-precision air floating spindle as a measurement reference to ensure the accuracy and stability of measurement, so that the measurement result is more accurate and reliable.

[0003] At present, as the core component of mechanical transmission system, the vibration characteristics of intermeshing roller bearing is an important index for evaluating product precision and reliability. With the development of precision manufacturing technology, the industry has higher requirements for vibration measurement of intermeshing roller bearing under dynamic working condition, especially the vibration characteristic analysis under radial load working condition has become the common demand of the industry. However, the existing CN 221706731 U discloses a bearing vibration measuring instrument with wide application range, which only sets convex plate, L-shaped plate, electric cylinder, frame, speed reducer, first turntable and concave limiting plate to limit and fix the bearing, without setting any radial loading device, so it cannot measure the vibration state of bearing under dynamic working condition with radial load. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model provides an intermeshing roller bearing mechanical vibration measurement equipment.

[0005] The utility model discloses a technical scheme that solves the above technical problems: an intermeshing roller bearing mechanical vibration measurement equipment, which comprises a base, a bearing vibration measuring instrument body and a probe, the bearing vibration measuring instrument body is arranged on the base, further comprising a mounting bracket arranged on the base, a positioning bracket arranged on the mounting bracket, a driving mechanism arranged on the mounting bracket and a mounting shaft arranged on the driving mechanism, the driving mechanism is used for driving the mounting shaft to rotate, and a fixing assembly for fixing the inner ring of the bearing to be measured is arranged on the mounting shaft.

[0006] The probe is arranged on the positioning bracket and the measuring end is in contact with the outer ring of the bearing to be measured.

[0007] The base is further provided with a clamping assembly for clamping the outer ring of the bearing to be measured, and the clamping assembly is provided with a radial loading mechanism for applying radial load to the bearing to be measured.

[0008] As a preferred scheme, the mounting bracket is in the shape of horizontal U and has a U-shaped opening, and the driving mechanism is arranged in the U-shaped opening.

[0009] As a preferred scheme, the positioning bracket is provided with a moving through hole for sliding cooperation with the probe, and the outer side of the positioning bracket is provided with a locking bolt for locking the probe.

[0010] As a preferred scheme, the driving mechanism comprises a driving motor, and an output shaft of the driving motor is connected with the mounting shaft through a shaft coupling.

[0011] As a preferred scheme, the fixing assembly comprises an annular protruding part arranged on the mounting shaft and a blocking ring sleeved on the mounting shaft, and the inner ring of the bearing to be measured is respectively abutted against the annular protruding part and the blocking ring.

[0012] As a preferred scheme, the limiting disc is connected with the mounting shaft through a fixing bolt, and the annular limiting part is in sliding fit with the mounting shaft.

[0013] As a preferred scheme, the clamping assembly comprises a fixed seat, a moving seat arranged opposite to the fixed seat and a moving mechanism for driving the moving seat to move horizontally, and the fixed seat and the moving seat are respectively provided with an arc-shaped groove matched with the outer ring of the bearing to be measured.

[0014] As a preferred scheme, the moving mechanism comprises an electric push rod and a guide plate, the push rod of the electric push rod is slidably penetrated through the guide plate and connected with the moving seat at an end, and the inner side of the arc-shaped groove is provided with an arc-shaped rubber pad.

[0015] As a preferred scheme, the radial loading mechanism comprises a supporting plate arranged on the moving seat and a loading electric cylinder arranged on the supporting plate, the moving seat is provided with a loading guide hole communicated with the arc-shaped groove, and the push rod of the loading electric cylinder is abutted against the outer ring of the bearing to be measured through the loading guide hole.

[0016] As a preferred scheme, the end of the push rod of the loading electric cylinder is provided with a rubber loading block abutted against the outer ring of the bearing to be measured.

[0017] The beneficial effects of the application are as follows: 1. The application drives the bearing to be measured to rotate through the driving mechanism, clamps the outer ring of the bearing to be measured through the clamping assembly, and applies radial load to the bearing to be measured through the radial loading mechanism, so that the probe collects vibration signals and transmits the vibration signals to the measuring instrument body, thereby measuring the vibration state of the bearing to be measured under dynamic working conditions.

[0018] 2. The electric push rod and the loading electric cylinder cooperate to realize automatic clamping and dynamic loading of the bearing to be measured, reduce manual intervention, and improve the measurement accuracy.

[0019] 3. The sliding through hole of the positioning frame and the locking bolt realize accurate position adjustment of the probe, and ensure the consistency of the measurement points. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 2The utility model discloses a fixed assembly's structure schematic drawing.

[0022] Figure 3 The utility model discloses a radial loading mechanism's structure schematic drawing.

[0023] Mark in drawing: 1, base, 2, bearing vibration measuring instrument body, 3, bearing to be measured, 4, mounting bracket, 5, positioning frame, 6, drive motor, 7, mounting shaft, 8, clamping assembly, 9, support plate, 21, probe, 51, locking bolt, 71, annular convex part, 72, baffle ring, 73, limit disc, 731, annular limit part, 74, fixed bolt, 81, fixed seat, 82, moving seat, 83, electric push rod, 84, guide plate, 91, loading electric cylinder, 92, rubber loading block. DETAILED DESCRIPTION

[0024] In order to make the utility model purposes, technical scheme and advantages more clearly, following combining with the drawing and example, the utility model carries out further detailed description.Should understand, in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or two or more;The orientation or position relation that terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" etc. are based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation structure and operation, therefore can not be understood as the limitation of the utility model.In addition, the terms "first", "second", "third" etc. are only for the purpose of description, and can not be understood as indicating or implying relative importance.

[0025] Please refer to Figures 1-3 The utility model embodiment provides a kind of cross roller bearing mechanical vibration measuring equipment, including base 1, bearing vibration measuring instrument body 2 and probe 21, bearing vibration measuring instrument body 2 is set on base 1, still include the mounting bracket 4 being set on base 1, positioning frame 5 being set on mounting bracket 4, drive mechanism being set on mounting bracket 4 and mounting shaft 7 being set on drive mechanism, drive mechanism is used to drive mounting shaft 7 rotation, and mounting shaft 7 is equipped with the fixed assembly for the fixed inner ring of bearing to be measured 3;Probe 21 is set on positioning frame 5 and measurement end and measured bearing 3 outer ring resist contact;Base 1 is also equipped with the clamping assembly 8 for clamping measured bearing 3 outer ring, and clamping assembly 8 is equipped with the radial loading mechanism for applying radial load to measured bearing 3.Probe 21 gathers vibration signal and is transmitted to measuring instrument body 2.

[0026] Combine Figure 1 And Figure 2As shown, the mounting frame 4 is horizontally U-shaped and has a U-shaped opening, and the driving mechanism is arranged in the U-shaped opening. The positioning frame 5 is provided with a moving through hole for slidingly matching with the probe 21, and the outer side of the positioning frame 5 is provided with a locking bolt 51 for locking the probe 21. The driving mechanism comprises a driving motor 6, and the output shaft of the driving motor 6 is connected with the mounting shaft 7 through a shaft coupling. The bearing vibration measuring instrument body 2 of the application can adopt a bearing vibration measuring instrument commonly used at present. It should be noted that the parts not described in detail in the application are all prior art.

[0027] As shown in the combination of Figure 1 and Figure 2 As shown, the fixing assembly comprises an annular protruding portion 71 arranged on the mounting shaft 7 and a blocking ring 72 sleeved on the mounting shaft 7, and the annular protruding portion 71 is integrally formed with the mounting shaft 7. The outer diameter of the blocking ring 72 is equal to the outer diameter of the annular protruding portion 71, and the outer diameter of the annular protruding portion 71 is less than or equal to the outer diameter of the inner ring of the bearing 3 to be measured. The inner ring of the bearing 3 to be measured is in abutment with the annular protruding portion 71 and the blocking ring 72 on both sides, respectively. The end of the mounting shaft 7 away from the driving motor 6 is provided with a limiting disc 73, and the limiting disc 73 is provided with an annular limiting portion 731 in abutment with the blocking ring 72. The limiting disc 73 and the annular limiting portion 731 are integrally formed. The limiting disc 73 is connected with the mounting shaft 7 through a fixing bolt 74, and the annular limiting portion 731 is in sliding fit with the mounting shaft 7.

[0028] Specifically, as shown in the combination of Figure 3 As shown, the clamping assembly 8 comprises a fixed seat 81, a moving seat 82 arranged opposite to the fixed seat 81, and a moving mechanism for driving the moving seat 82 to move horizontally. The fixed seat 81 and the moving seat 82 are respectively provided with arc-shaped grooves matched with the outer ring of the bearing 3 to be measured. The moving mechanism comprises an electric push rod 83 and a guide plate 84, and the push rod of the electric push rod 83 is slidably penetrated through the guide plate 84 and is connected with the moving seat 82 at the end. The end of the push rod of the electric push rod 83 is welded with the moving seat 82, and the electric push rod 83 drives the moving seat 82 to clamp the outer ring of the bearing 3 to be measured. The arc-shaped rubber pad protects the surface of the bearing 3 to be measured.

[0029] Further, the guide plate 84 is welded and fixed with the base 1. The fixed seat 81 comprises a first horizontal portion and a first vertical portion arranged on the first horizontal portion, and the first horizontal portion is connected with the base 1 through a bolt. The arc-shaped grooves on the fixed seat 81 are arranged on the first vertical portion. The moving seat 82 comprises a second horizontal portion and a second vertical portion arranged on the second horizontal portion, and the second horizontal portion is connected with the base 1 through a bolt. The arc-shaped grooves on the moving seat 82 are arranged on the second vertical portion. The concave surfaces of the two arc-shaped grooves are oppositely arranged.

[0030] In addition, the radial loading mechanism comprises a supporting plate 9 arranged on the moving seat 82 and a loading electric cylinder 91 arranged on the supporting plate 9, the moving seat 82 is provided with a loading guide hole communicated with the arc-shaped recess, and the push rod of the loading electric cylinder 91 is in abutment with the outer ring of the bearing to be measured 3 through the loading guide hole. The end of the push rod of the loading electric cylinder 91 is provided with a rubber loading block 92 in abutment with the outer ring of the bearing to be measured 3. The loading electric cylinder 91 is a servo electric cylinder.

[0031] In use, the inner ring of the bearing to be measured 3 is sleeved on the mounting shaft 7, the inner ring of the bearing to be measured 3 is in abutment with the annular protruding portion 71, then the retaining ring 72 is sleeved on the mounting shaft 7, the annular limiting portion 731 is locked by the retaining ring 72 through the fixing bolt 74 and the limiting disc 73, and the inner ring of the bearing to be measured 3 is fixed. The electric push rod 83 is started, the moving seat 82 is driven to move close to the fixed seat 81, so that the moving seat 82 and the fixed seat 81 jointly clamp the outer ring of the bearing to be measured 3. The loading electric cylinder 91 is started, the push rod of the loading electric cylinder 91 drives the rubber loading block 92 to apply a preset radial load to the outer ring of the bearing to be measured 3. The driving motor 6 drives the mounting shaft 7 to rotate, and the inner ring of the bearing to be measured 3 rotates synchronously. The probe 21 contacts the surface of the outer ring, and the bearing vibration measuring instrument body 2 collects vibration data. Thus, the vibration state of the bearing under the radial load in the dynamic working condition is measured.

[0032] Of course, the utility model is not limited to the above-mentioned embodiment, and several other embodiments based on the design concept of the utility model are provided below.

[0033] For example, in other embodiments, different from the above-mentioned embodiment, the arc-shaped recess is provided with an arc-shaped rubber pad inside.

[0034] For example, in other embodiments, different from the above-mentioned embodiment, the base 1 is provided with a sliding groove along the moving direction of the moving seat 82, and the bottom of the moving seat 82 is provided with a sliding plate matched with the sliding groove.

[0035] It should be noted that the above-mentioned embodiments are only used to illustrate the utility model, but the utility model is not limited to the above-mentioned embodiments, and any simple modification, equivalent change and modification according to the technical essence of the utility model of the above-mentioned embodiments all fall within the protection scope of the utility model.

Claims

1. A cross-roller bearing mechanical vibration measuring apparatus comprising a base (1), a bearing vibration measuring instrument body (2) and a probe (21), the bearing vibration measuring instrument body (2) being provided on the base (1), characterized in that, The mounting rack (4) is horizontally U-shaped and has a U-shaped opening, and the driving mechanism is arranged in the U-shaped opening. The positioning rack (5) is provided with a moving through hole for slidingly matching with the probe (21), and the outer side of the positioning rack (5) is provided with a locking bolt (51) for locking the probe (21). The driving mechanism comprises a driving motor (6), and an output shaft of the driving motor (6) is connected with the mounting shaft (7) through a shaft coupling.

2. A cross-roller bearing mechanical vibration measuring apparatus according to claim 1, characterized in that: The fixing assembly comprises an annular protruding portion (71) arranged on the mounting shaft (7) and a blocking ring (72) sleeved on the mounting shaft (7), and the inner ring of the bearing (3) is respectively abutted against the annular protruding portion (71) and the blocking ring (72) on both sides, and the end portion of the mounting shaft (7) away from the driving motor (6) is provided with a limiting disc (73), and the limiting disc (73) is provided with an annular limiting portion (731) abutting against the blocking ring (72).

3. A cross-roller bearing mechanical vibration measuring apparatus according to claim 1, characterized in that: The limiting disc (73) is connected with the mounting shaft (7) through a fixing bolt (74), and the annular limiting portion (731) is in sliding fit with the mounting shaft (7).

4. A cross-roller bearing mechanical vibration measuring apparatus according to claim 1, characterized in that: The clamping assembly (8) comprises a fixed seat (81), a moving seat (82) arranged opposite to the fixed seat (81), and a moving mechanism for driving the moving seat (82) to move horizontally, and the fixed seat (81) and the moving seat (82) are respectively provided with an arc-shaped groove matched with the outer ring of the bearing (3).

5. A cross-roller bearing mechanical vibration measuring apparatus according to claim 1, characterized in that: The moving mechanism comprises an electric push rod (83) and a guide plate (84), the push rod of the electric push rod (83) is slidably penetrated through the guide plate (84) and the end portion is connected with the moving seat (82), and the inner side of the arc-shaped groove is provided with an arc-shaped rubber pad.

6. A cross-roller bearing mechanical vibration measuring apparatus according to claim 5, wherein: The radial loading mechanism comprises a supporting plate (9) arranged on the moving seat (82) and a loading electric cylinder (91) arranged on the supporting plate (9), the moving seat (82) is provided with a loading guide hole communicated with the arc-shaped groove, and the push rod of the loading electric cylinder (91) is abutted against the outer ring of the bearing (3) through the loading guide hole.

7. A cross-roller bearing mechanical vibration measuring apparatus according to claim 1, characterized in that: The end portion of the push rod of the loading electric cylinder (91) is provided with a rubber loading block (92) abutted against the outer ring of the bearing (3).

8. A cross-roller bearing mechanical vibration measuring apparatus according to claim 7, characterized in that: ​ 9. A cross-roller bearing mechanical vibration measuring apparatus according to claim 7, wherein: ​ 10. A cross-roller bearing mechanical vibration measuring apparatus according to claim 9, wherein: ​

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