CN202511743U

CN202511743U - Device for measuring radial internal clearance of bearing

Info

Publication number: CN202511743U
Application number: CN2012201102117U
Authority: CN
Inventors: 王建
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-22
Filing date: 2012-03-22
Publication date: 2012-10-31
Anticipated expiration: 2022-03-22

Abstract

The utility model discloses a device for measuring radial internal clearance of a bearing. The device comprises measuring plates connected to a measuring seat, a left cylinder and a right cylinder which are connected to the measuring plates, a cylinder which is fixed on the measuring seat and is connected with an ejector rod, and a measuring mechanism arranged on the measuring seat, wherein the measuring mechanism consists of a measuring head assembly and a measuring hook assembly; and the measuring head assembly and the measuring hook assembly are respectively formed by respectively fixing an upper spring leaf and a lower spring leaf which are fixed on a measuring head mounting plate and a measuring hook mounting plate on spring leaf fixing plates, and the measuring head mounting plate and the measuring hook mounting plate which are connected with the measuring head and the measuring hook through upper and lower spring leaf pressing plates and screws. The traditional measurement is completely changed, and the contact between a spindle and an inner ring surface of a measured bearing is changed into contact between the measuring hook and inner ring points of the measured bearing, so that the device is easy to process and manufacture and low in manufacturing cost, and when worn, the measuring hook can be continuously used by replacing only a ceramic ball. The contact measurement is performed by the upper and lower contacts of the measuring head and the measuring hook; the front and rear end faces of the measured bearing are not required to be fixed by pressing; the device is easily, conveniently and rapidly operated; all errors influencing the measurement accuracy are eliminated; and the device is high in detection accuracy, wide in application range and high in practicality.

Description

The bearing end-play measurement mechanism

Technical field

The utility model relates to the important critical component on a kind of bearing checkout equipment, particularly a kind ofly is used to detect the bearing end-play measurement mechanism.

Background technology

All to use bearing in the existing mechanical transmission rotating machinery; Therefore bearing is a kind of product that has a large capacity and a wide range, and for guaranteeing that bearing quality needs its each item technical parameter is measured, the end-play value of bearing is exactly a very important index; Important test item for bearing; It is meant the gap of the inner and outer ring raceway groove that the rolling body of bearing is mated, and promptly is used for grease lubrication gap and rolling gap at different use occasions and variety classes bearing, and the end-play of each class bearing all requires within the specific limits; Testing result will directly influence the behavior in service of bearing, particularly to the influence in noise, vibrations and serviceable life.

The measurement of industry centre bearer end-play at present all is that end face compresses bearing inner race with pressing plate with the mandrel location, and push rod withstands the bearing outer ring lower end; Sounding rod withstands measurement face and exerts pressure; Therefore the quality of fit to mandrel requires high-leveled and difficult processing, and the mandrel and the brearing bore gap error that cause after the mandrel long-term work wearing and tearing can be superimposed in the end-play; The required measurement axle diameter of especially little bearing is littler; Long-term use is yielding, and its error also can be superimposed in the end-play, so measuring error is big, measurement is inaccurate.

Chinese patent numbers 200610128224.6 " measurement mechanisms of light/light and ultralight heavy-load radial-bearing radial-play " is though also provide a kind of measurement mechanism, and it still adds the structure of press fit with gland with mandrel sleeve location and on an end face of bearing.

The measured bearing axis that is still that Chinese patent number 201020613674.6 " bearing end-play measurement mechanisms " provide becomes horizontal direction to be positioned on the measurement mandrel, utilizes the measurement mandrel to cooperate with the inner ring of measured bearing and measures.

Summary of the invention

The utility model technical matters to be solved is: a kind of bearing end-play measurement mechanism is provided; Thoroughly change the defective that tradition is measured with the mandrel location structure; This apparatus structure is made by compact being prone to; Simple to operation, and improve the accuracy rate of detection efficiency and detection greatly, reduce production costs.

The utility model addresses the above problem the technical scheme that is adopted: the bearing end-play measurement mechanism; Comprise the measurement plate that connects on the measuring seat, measure the left and right cylinder that connects on the plate, fixing cylinder that is connected with push rod and the mandrel that is connected with measured bearing on the measuring seat; Be installed in the measuring mechanism on the measuring seat; Said measuring mechanism is made up of gauge head assembly, survey hook assembly, and said survey hook assembly connects measuring pen or sensor by the upper surface of surveying the hook installing plate with screw, is connected with the axis of rolling on the outside surface; With upper and lower reed pressing plate and the upper and lower reed of screw retention, also be fixed with on the said survey hook installing plate and survey the hook formation on survey hook installing plate and the reed fixed head; Said gauge head assembly is used the upper and lower reed identical with surveying the hook assembly by gauge head installing plate upper surface; Upper and lower reed pressing plate also is separately fixed on the reed fixed head and gauge head installing plate of both sides with screw; Be connected with the axis of rolling on the outside surface, also be fixed with gauge head on the said gauge head installing plate and constitute.

Compared with prior art; The advantage of the utility model is: this device thoroughly changes conventional measurement; To contact with the face of measured bearing inner ring to change over by mandrel and contact, and not only be prone to processing, be prone to make, low cost of manufacture also, and survey on the hook Ceramic Balls wearing and tearing back and need only the survey hook and adjust upward with the point of measured bearing inner ring by surveying hook; Can continue to use, directly cause the measurement Ceramic Balls and wear and tear fully.Carry out contact measurement by gauge head, two contacts up and down surveyed on the hook in addition, so that the front and rear end of measured bearing just need not to exert pressure energetically is fixing, simple to operation rapidly.Survey hook in this device and measuring pen or survey sensor are synchronized with the movement with measured bearing; Can offset the gap error between measured bearing and mandrel at any time because of adopting the survey hook to make the location survey point; Existing mandrel is not made measurement point and only surveyed the installed surface of hook and use, and is low to its requirements of making, existing with the superposition error of influential measuring accuracy all eliminate fully; So its accuracy of measurement is high; Repeatedly duplicate measurements error can be used for measuring the various bearings that bearing inner race is 120 millimeters of Φ 2～Φ less than 1 μ m, uses wide practical.

Description of drawings

The structural representation of Fig. 1, the utility model (bearing test mode).

The left view of Fig. 2, Fig. 1.

Fig. 3, survey hook assembly structure synoptic diagram.

Fig. 4, gauge head assembly structure synoptic diagram.

Embodiment

Embodiment to the utility model further describes below in conjunction with accompanying drawing.

On the two side of measuring seat 18 with the identical measurement plate 2 that has waist shape adjustment hole of screw fixing respectively two; On getting out of a predicament or an embarrassing situation, the place ahead has been screwed cylinder 17; Be connected with push rod 16 on the cylinder; There is a through hole fixed central spindle 15 at measuring seat 18 centre positions and central axis place, push rod 16 top, and with in the screw on the screw 19 screw-in mandrels, mandrel 15 are fixed on the measuring seat 18.

Mandrel 15 is that ladder is cylindrical, on the end face screw is arranged, and the top, other end has an opening, opening to be greater than width, the degree of depth of surveying hook 13, and this mandrel and measured bearing 14 inner rings have not had positioning action movingly, only plays surveying the effect of laying of shelving of hook.

It is L shaped surveying hook 13, and there is a groove at the corresponding gauge head of hook end 12 places, and the fixing Ceramic Balls 13-1 of setting-in and bonding is convenient to measure and increase smooth finish and the wearing quality of surveying hook, also available alloy steel ball as measurement point in the groove.

Survey the hook assembly and connect instrument measurement pen 6 or sensor with screw by the upper surface of surveying hook installing plate 5; Be connected with axis of rolling 5-1 on the outside surface; Survey on a sidewall and the reed fixed head 3 of hook installing plate with upper and lower

reed pressing plate

20,21 and the upper and

lower reed

8,9 of screw retention; The bottom righthand side of surveying the hook installing plate is screwed surveys hook 13 formations, as shown in Figure 3.

The gauge head assembly is used the upper and lower reed identical with surveying the

hook assembly

8,9 by gauge head installing plate 7 upper surfaces; Upper and lower reed

pressing plate

20,21 also is separately fixed on the reed fixed head 3 and gauge head installing plate 7 of both sides with screw; Be connected with axis of rolling 7-1 on the outside surface; The left lower end of gauge head installing plate 7 is screwed gauge head 12 and constitutes, and is as shown in Figure 4.

Gauge head, survey hook assembly utilize the reed fixed head 3 on it to be screwed two respectively and measure on the plates 2; Gauge head assembly and survey hook assembly are installed in the upper end of measuring seat 18 side by side; Two measure plate 2 utilizes the mounting hole on it to be separately fixed on the two side of measuring seat 18 with screw; Measure the setting height(from bottom) scalable of plate, be convenient to measure the bearing of different sizes, be screwed left and

right cylinder

1,11 on the outside surface of two measurement plates 2 with left and

right transfer arm

4,10; And left and

right transfer arm

4,10 cooperates with axis of rolling 5-1,7-1 on surveying hook, gauge

head installing plate

5,7 and constitute survey hook switch and gauge head switch, and is as shown in Figure 1.

This device can be separately or with the supporting use of test machine, during use, open left and

right cylinder

1,11; Left and

right transfer arm

4,10 moves to both sides, and its tapering promotes to survey axis of rolling 5-1, the 7-1 on hook, the gauge head installing plate, and survey hook 13, the gauge head 12 surveyed on hook, the gauge head assembly respectively down, up move a distance; At this moment measured bearing 14 just is easy to veer away on mandrel 15, surveys the opening part that hook 13 inserts on the mandrel 15, and left and right then cylinder resets; Under the effect of upper and

lower reed

8,9 power, survey hook, gauge head switch motion disengaging axis of rolling 5-1,7-1, make gauge head 12 move down the top of the outer ring of straight top measured bearing 14; Meanwhile, survey hook 13 up moves under the effect of upper and lower reed power, and the Ceramic Balls 13-1 on it supports the inner ring of running into measured bearing 14; And with gauge head 12 on same straight line, measured bearing is driven instrument measurement pen 6 simultaneously and is moved down the top of directly running into gauge head 12 by upper and lower 2 clampings; Record data by instrument, cylinder 17 actions make push rod 16 move up again then, direct reach the bottom surface of measured bearing 14 outer rings; As shown in Figure 2, the measured bearing outer ring overcomes the acting force of gauge head 12 and to float, at this moment instrument is measured data again; Above-mentioned two data difference are exactly the end-play of measured bearing 14.

This device can be used for measuring the bearing of 120 millimeters of bearing inner race Φ 2～Φ, and usable range is wide, practical.

Claims

1. bearing end-play measurement mechanism; Comprise the measurement plate (2) that measuring seat (18) upward connects; Measure plate (2) and go up the left and right cylinder (1,11) that connects; Fixing cylinder (17) that is connected with push rod (16) and the mandrel (15) that is connected with measured bearing (14) are installed in the measuring mechanism on the measuring seat (18) on the measuring seat, it is characterized in that said measuring mechanism is made up of gauge head assembly, survey hook assembly; Said survey hook assembly connects measuring pen (6) or sensor by the upper surface of surveying hook installing plate (5) with screw; Be connected with the axis of rolling (5-1) on the outside surface, survey hook installing plate (5) and reed fixed head (3) and go up, also be fixed with on the said survey hook installing plate (5) and survey hook (13) formation with upper and lower reed pressing plate (20,21) and the upper and lower reed of screw retention (8,9); Said gauge head assembly is used the upper and lower reed identical with surveying the hook assembly (8,9) by gauge head installing plate (7) upper surface; Upper and lower reed pressing plate (20,21) also is separately fixed on the reed fixed head (3) and gauge head installing plate (7) of both sides with screw; Be connected with the axis of rolling (7-1) on the outside surface, also be fixed with gauge head (12) on the said gauge head installing plate (7) and constitute.

2. bearing end-play measurement mechanism according to claim 1 is characterized in that said survey hook (13) for L shaped, and the corresponding gauge head of hook end (12) has been located a groove, and the fixing Ceramic Balls (13-1) of setting-in and bonding is as measurement point in the groove.

3. bearing end-play measurement mechanism according to claim 1; It is characterized in that said mandrel (15) is cylindrical for ladder, screw is arranged on the end face, there is an opening top, other end; Opening is greater than the width degree of depth of surveying hook (13), with measured bearing (14) inner ring movingly.

4. bearing end-play measurement mechanism according to claim 1; It is characterized in that on the two side of described measuring seat (18) with screw fixing two identical measurement plates (2) that have waist shape adjustment hole respectively; On getting out of a predicament or an embarrassing situation, the place ahead has been screwed cylinder (17); Be fixed with push rod (16) on the cylinder; There is a through hole fixed central spindle (15) at measuring seat (18) centre position and central axis place, push rod (16) top, and screw in the screw on the mandrel with screw (19), and mandrel (15) is fixed on the measuring seat (18).

5. bearing end-play measurement mechanism according to claim 1; It is characterized in that described two measure on the outside surface of plates (2) and are screwed the left and right cylinder (1,11) with left and right transfer arm (4,10), and left and right transfer arm (4,10) cooperates formation survey hook switch and gauge head switch with the axis of rolling (5-1,7-1) on surveying hook, gauge head installing plate (5,7).

6. bearing end-play measurement mechanism according to claim 1; It is characterized in that described gauge head assembly uses the upper and lower reed identical with surveying the hook assembly (8,9) by gauge head installing plate (7) upper surface; Upper and lower reed pressing plate (20,21) also is separately fixed on the reed fixed head (3) and gauge head installing plate (7) of both sides with screw; Be connected with the axis of rolling (7-1) on the outside surface, the left lower end of gauge head installing plate (7) is screwed gauge head (12) and constitutes.

7. bearing end-play measurement mechanism according to claim 1; It is characterized in that described survey hook assembly connects measuring pen (6) or sensor by the upper surface of surveying hook installing plate (5) with screw; Be connected with the axis of rolling (5-1) on the outside surface; Survey a sidewall and the reed fixed head (3) of hook installing plate and go up with upper and lower reed pressing plate (20,21) and the upper and lower reed of screw retention (8,9), the bottom righthand side of surveying the hook installing plate is screwed surveys hook (13) formation.