CN201273802Y

CN201273802Y - Roller conveyer position measurement apparatus for large pivoting support bearing

Info

Publication number: CN201273802Y
Application number: CNU2008201535297U
Authority: CN
Inventors: 沈祖耀
Original assignee: SHANGHAI UNITED BEARING CO Ltd
Current assignee: SHANGHAI UNITED BEARING CO Ltd
Priority date: 2008-09-26
Filing date: 2008-09-26
Publication date: 2009-07-15
Anticipated expiration: 2018-09-26

Abstract

The utility model discloses a raceway position measuring device of a large rotating support bearing. The inner ring, the outer surface, the outer ring and the inner surface of a rotating support bearing are respectively provided with a channel; the inner ring and the outer ring of the bearing are combined to form a steel ball raceway; the raceway position measuring device comprises a try square, a template, a slide gauge and a dial indicator; the try square is provided with a vertical part and a horizontal part which is connected with the upper end of the vertical part and is provided with a mounting hole on the end surface; the template is a semicircular plate the diameter of which is equal to the diameter of a steel ball; the slide gauge is a positive quadrilateral frame the height of which is equal to the diameter of the template; the slide gauge is sleeved on the vertical part of the try square in a sliding way; one side of the slide gauge is connected with the diameter surface of the template; the dial indicator is fixed above the horizontal part of the try square; a measuring rod penetrates through the mounting hole of the horizontal part from the top to the bottom of the try square; and the contact of the measuring rod props against the upper end surface of the slide gauge. The utility model can directly read the position size of the bearing raceway tested.

Description

The measurement mechanism of the raceway position of large slewing bearing

Technical field

The utility model relates to a kind of driftage bearing on the aerogenerator and measurement mechanism of pitch variable bearings of being used for, and is specifically related to a kind of measurement mechanism of raceway position of large slewing bearing.

Background technology

China is marching this piece of wind-power electricity generation brand-new " pollution-free industry ", in order to make aerogenerator promote generating efficiency, increase generated energy, the size at positions such as the length of blade, main shaft, speed-increasing gear, generator is also in continuous expansion, but the loading that the while bearing is born also increases gradually, and this technical requirement to wind power bearing is very high.Pitch variable bearings on the aerogenerator and driftage bearing are four-point contact ball formula ball bearing and double-row angular contact bal bearing, channel dimensions, position accuracy demand height, and it has higher quiescent load ability.Pitch variable bearings is mainly used in the adjusting vane angle and guarantees that blade rotational speed is constant, and band internal tooth and anodontia two kinds of structures are arranged, and slewing area is at 0～90 °, normally in 0～25 ° of scope.The driftage bearing is the assurance that aerogenerator is followed the trail of wind direction levelling head-on wind, bearing outer ring band tooth, and 360 ° of slewing areas, rotational frequency is the highest on 90 ° of scopes.The diameter of the general usable range of super-huge pivoting support at 1000mm to about the 3500mm, the pitch variable bearings and the driftage bearing that are used on the aerogenerator surmount this size greatly, belong to supersize pivoting support bearing, the bearing ring of this size can't be measured the position dimension of raceway center to end on existing surveying instrument, and the degree of accuracy of raceway position size is concerning single-row raceway, it is high directly to influence the bearing assembling, especially the bearing harm to the biserial raceway is bigger, in the bearing, the deviation of the position dimension between the two raceways on the outer ring will directly influence the performance of bearing, cause the skew of two raceway contact positions and cause early stage damage.

Prior art adopts a model to measure to the dimensional discrepancy measuring method of super-huge lasso raceway position, and the printing opacity between range estimation model and raceway is determined the deviation of position.The method can't quantitatively be read the amount of deflection, can use the bearing of single-row raceway, and to the biserial race bearing, it is very high that the position dimension deviation between a raceway and another raceway requires, and can't detect with light transmission method.For this reason, needing to demand the measurement mechanism of a kind of special use of development urgently.

Summary of the invention

The purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of measurement mechanism of raceway position of large slewing bearing of the raceway position size that can directly read measured bearing is provided, and it has higher measuring accuracy and stability.

A kind of technical scheme that realizes above-mentioned purpose is: a kind of measurement mechanism of raceway position of large slewing bearing, the inner ring outside surface of described pivoting support bearing and inner surface are respectively equipped with single-row or the biserial raceway groove, be configured for assembling the steel ball rolling channel of steel ball after the inner ring of bearing and the outer ring combination, the measurement mechanism of described raceway position comprises a try square, a template, a slide rule and a dial gauge

Described try square has a vertical component effect and and is connected the horizontal part that vertical component effect upper end and end face are provided with a mounting hole;

Described template is the semi-circular plate that a diameter equals steel ball size;

Described slide rule is one highly to equal the square frame of template diameter, and it is sleeved on the vertical component effect of try square slidably, and its side is connected with the diametral plane of template;

Described dial gauge is fixed on the horizontal part top of try square, and its measuring staff is passed down through the mounting hole of horizontal part from the top of try square, so that its contact is pressed on the upper surface of slide rule.

The measurement mechanism of the raceway position of above-mentioned large slewing bearing, wherein, the vertical component effect surface of described try square is marked with size scale.

Adopted the technical scheme of measurement mechanism of the raceway position of large slewing bearing of the present utility model, this measurement mechanism is simple in structure, easy to use, can directly read the position dimension of measured bearing raceway, have higher measuring accuracy and stability, thereby realized quality of production control the wind-power electricity generation machine bearing.

Description of drawings

Fig. 1 is the structural representation of measurement mechanism of the raceway position of large slewing bearing of the present utility model;

Fig. 2 is the constitutional diagram of measurement mechanism when measuring of the raceway position of large slewing bearing of the present utility model.

Embodiment

In order to understand the technical solution of the utility model better, below by embodiment particularly and be described in detail in conjunction with the accompanying drawings:

See also Fig. 1, the inner ring outside surface of pivoting support bearing 1 and inner surface are respectively equipped with single-row or biserial raceway groove 10, are configured for assembling the steel ball rolling channel of steel ball after the inner ring of bearing 1 and the outer ring combination.

The measurement mechanism of the raceway position of large slewing bearing of the present utility model comprises a try square 2, a template 3, a slide rule 4 and a dial gauge 5, wherein,

Try square 2 has the horizontal part 22 that a vertical component effect 21 and is connected vertical component effect 21 upper ends, and vertical component effect 21 surfaces of try square 2 are marked with size scale, and the end face of horizontal part 22 is provided with a mounting hole 220;

Template 3 is the semi-circular plate that a diameter equals steel ball size;

Slide rule 4 is one highly to equal the square frame of template 3 diameters, and it is sleeved on the vertical component effect 21 of try square 2 slidably, and its side is connected with the diametral plane of template 3;

Dial gauge 5 is fixed on horizontal part 22 tops of try square 2, and its measuring staff 51 is passed down through the mounting hole 220 of horizontal part 22 from the top of try square 2, so that its contact 52 is pressed on the upper surface of slide rule 4;

See also Fig. 2, the measuring method of the measurement mechanism of the raceway position of large slewing bearing of the present utility model may further comprise the steps:

At first, arrive the distance of try square horizontal part 22 lower surfaces according to the inner ring or 10 centers of the raceway groove on the outer ring of bearing 1 to the inner ring of bearing 1 or distance adjustment slide rule 4 upper surfaces of outer ring one end face, and be adjusted into the display digit of dial gauge 5 zero;

Then, horizontal part 22 lower surfaces of try square 2 are resisted against on the inner ring or outer ring one end face of bearing 1, so that the template 3 of slide rule 4 one sides is embedded in the raceway groove 10 of the inner ring outside surface of bearing 1 or inner surface;

At last, keep the state of try square 2 on the other hand, another have gentle hands is held up in slide rule 4 another sides, and along the inner ring outside surface of bearing 1 or the raceway groove 10 axial rotation measurement mechanisms of inner surface, the reading of observing dial gauge 5 simultaneously changes.

When rotating measurement mechanism, because being connected with the slide rule 4 of template 3 can freely slide up and down on the vertical component effect 21 of try square 2, template 3 is embedded in the raceway groove 10, if the axial location of raceway groove 10 has tiny variation that slide rule 4 is moved up and down, and then make the measuring staff 51 of dial gauge 5 that telescopic variation be arranged, these change all can show concrete numeral in dial gauges 5, therefore, and the change in location data that can directly read this bearing channel 10 by the reading of observation dial gauge 5.Raceway groove 10 position dimensions that record inner ring outside surface and inner surface can obtain the position dimension of steel ball rolling channel.

The measurement mechanism of the raceway position of large slewing bearing of the present utility model is easy to use, has higher measuring accuracy and stability, thereby has realized the quality of production control to the wind-power electricity generation machine bearing.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims

1. the measurement mechanism of the raceway position of a large slewing bearing, the inner ring outside surface of described pivoting support bearing and inner surface are respectively equipped with single-row or the biserial raceway groove, be configured for assembling the steel ball rolling channel of steel ball after the inner ring of bearing and the outer ring combination, it is characterized in that, the measurement mechanism of described raceway position comprises a try square, a template, a slide rule and a dial gauge

2. the measurement mechanism of the raceway position of large slewing bearing according to claim 1 is characterized in that, the vertical component effect surface of described try square is marked with size scale.