CN202041163U

CN202041163U - Main journal coaxiality detecting device of crank shaft

Info

Publication number: CN202041163U
Application number: CN2011200266647U
Authority: CN
Inventors: 王新叶; 魏春杰; 邓德君; 李良
Original assignee: QINGDAO ZICHAI BOYANG DIESD ENGINE CO Ltd
Current assignee: QINGDAO ZICHAI BOYANG DIESD ENGINE CO Ltd
Priority date: 2011-01-24
Filing date: 2011-01-24
Publication date: 2011-11-16
Anticipated expiration: 2021-01-24

Abstract

The utility model discloses a main journal coaxiality detecting device of a crank shaft, which comprises a speed reducing motor, wherein the speed reducing motor is connected with the crank shaft through a connecting mechanism; the main journal coaxiality detecting device additionally comprises fixed V-shaped reference brackets and floating brackets; the reference brackets are placed below main journals at the two ends of the crank shaft; the floating brackets are placed below middle main journals; pin rollers are arranged at supporting parts of the floating brackets and can float on a bottom plate of the brackets; and dial indicators are mounted on the floating brackets and are fixed with a base of the brackets to form a whole. By adopting the main journal coaxiality detecting device of the crank shaft, which is disclosed by the utility model, the influence on detection caused by the external environment and the device self can be effectively reduced, and the detection accuracy can be improved.

Description

The king journal axiality detection device of bent axle

Technical field

The utility model relates to a kind of axiality detection device of bent axle, is specifically related to the device that a kind of coaxiality error that is used between each king journal of large-scale integral bent axle detects.

Background technology

As everyone knows, bent axle is the heart of diesel engine, the detection level of bent axle has also directly influenced the integral level of engine, everybody pick-up unit that uses supports as roller at present, supported at three point, such structure can be added to the error of bearing in the detection data of bent axle, can not eliminate the deflection deformation of bent axle, and to detect bent axle now be to detect Up Highway UHW, and this detection mode bent axle that the variation of axle journal circularity can be added to detects in the data.

Summary of the invention

In order to overcome the problems referred to above that prior art exists, the utility model provides a kind of king journal axiality detection device of bent axle, can effectively reduce the influence to detecting of external environment and device itself, improves the degree of accuracy that detects.

The king journal axiality detection device of the bent axle that the utility model provides, comprise reducing motor, described reducing motor is placed on the electric machine support, link to each other with bent axle by bindiny mechanism, also comprise fixing V-type benchmark support, floating bracket, described benchmark support is placed under the king journal at two ends, and described floating bracket is placed under middle each king journal; The support section of floating bracket is provided with roller, and described roller can be moving in support base plate come-up; On the described floating bracket clock gauge is installed,

Described clock gauge and bracket base are fixed as one.

Described bindiny mechanism is such: the end of reducing motor by flange and Hooks coupling universal coupling joined, and the other end of Hooks coupling universal coupling is connected with bent axle by terminal pad.In the testing process, the rotating speed of reducing motor is made as 1rpm.

The king journal axiality detection device of the bent axle that the utility model provides, compared with prior art its beneficial effect is, reducing motor rotating speed stably can make and measures the most real data; The everything shaft coupling can be eliminated and rotate the additional force that produces detects support and testing result to bent axle influence; Clock gauge and floating bracket base are fixed as one, and can eliminate the interference of extraneous vibration factor to testing result.

Description of drawings

Fig. 1 is the one-piece construction synoptic diagram of an embodiment of the utility model;

Fig. 2 is; A among Fig. 1 is to view.

Mark among the figure:

1. electric machine support; 2. reducing motor; 3. joint flange; 4. Hooks coupling universal coupling; 5. terminal pad; 6. articulation bolt; 7. benchmark support; 8. floating bracket; 9. clock gauge; 10. clock gauge seat; 11. roller.

Embodiment

With reference to the accompanying drawings, in conjunction with an embodiment, the king journal axiality detection device of the bent axle that the utility model is provided is described in detail.

Embodiment

With reference to Fig. 1-Fig. 2, the king journal axiality detection device of the bent axle that present embodiment provides is placed directly in pick-up unit on the marble platform, need not to fix, the king journal of detected crankshaft two end is placed on the fixed V-type benchmark support 7, and middle each king journal is placed on the floating bracket 8; Reducing motor 2 is placed on the electric machine support 1, links to each other with an end of Hooks coupling universal coupling 4 by joint flange 3, is fixed together with articulation bolt 6 by the other end of terminal pad 5 with bent axle one end and Hooks coupling universal coupling again; Fixed installation clock gauge seat 10 on the floating bracket base, clock gauge 9 is installed on the clock gauge seat.

Start reducing motor 2 and drive crankshaft rotating, speed setting is 1rpm, owing to have error between each king journal axis of bent axle, when bent axle rotates on support, the support section of floating bracket 8 is given birth to transversal displacement by roller 11 at support base plate come-up movable property under the effect of bent axle, clock gauge 9 is measured the straight-line displacement of floating bracket, and bent axle circles, the horizontal moving displacement of support promptly this axle journal with respect to the coaxiality error of two ends benchmark.

Claims

1. the king journal axiality detection device of a bent axle, the coaxiality error that is used between each king journal of large-scale integral bent axle detects, comprise reducing motor (2), described reducing motor is placed on the electric machine support (1), link to each other with bent axle by bindiny mechanism, it is characterized in that: also comprise fixing V-type benchmark support (7), floating bracket (8), described benchmark support (7) is placed under the king journal at two ends, and described floating bracket (8) is placed under middle each king journal; The support section of floating bracket is provided with roller (11), and described roller can be moving in support base plate come-up; Be installed with clock gauge (9) on the described floating bracket.

2. the king journal axiality detection device of bent axle according to claim 1, it is characterized in that, described bindiny mechanism is such: described reducing motor (2) joins by the end of flange (3) with Hooks coupling universal coupling (4), and the other end of described Hooks coupling universal coupling is connected with bent axle by terminal pad (5).

3. the king journal axiality detection device of bent axle according to claim 2, it is characterized in that: the rotating speed of described reducing motor is 1rpm.

4. the king journal axiality detection device of bent axle according to claim 2, it is characterized in that: described clock gauge (9) is installed on the clock gauge seat (10), and clock gauge seat and bracket base are fixed as one.