CN210922487U

CN210922487U - Crankshaft journal contact area detection tool

Info

Publication number: CN210922487U
Application number: CN201922106013.8U
Authority: CN
Inventors: 高继昊; 曹萍萍; 王吉斌; 曲传虎; 随清川
Original assignee: Liaoning 518 Internal Combustion Engine Fittings Co ltd
Current assignee: Liaoning 518 Internal Combustion Engine Fittings Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-07-03
Anticipated expiration: 2029-11-29

Abstract

The utility model discloses a crankshaft journal contact area checking fixture, which comprises a marble gauge block, a nylon base, a nylon upper cover and a handle; the lower side of the marble gauge block is a detection surface, and the upper part of the marble gauge block is bonded with the nylon upper cover into a whole; screw holes are arranged at two ends of the nylon upper cover, and one end of the handle is of a thread structure and is screwed in the screw holes; the lower part of the marble gauge block is arranged in the nylon base. The utility model discloses can realize can be fast, in time accurately detecting the area of contact condition of bent axle journal at the processing scene. The operator can be guided to adjust the processing parameters and the like according to the detection condition, so that the error is reduced, the processing precision is improved, and the production efficiency is improved.

Description

Crankshaft journal contact area detection tool

Technical Field

The utility model discloses the technique relates to bent axle processing technology field specifically is a bent axle journal area of contact's utensil of examining.

Background

The crankshaft is an important rotating mechanism on the engine, and is used as a transmission body for transmitting power, converting the linear reciprocating motion of the piston into rotary motion, and outputting full power outwards. When the crankshaft works, the stress condition is quite complex, and the requirements on parameters such as the size of a crankshaft journal, the contact area and the like are quite strict. The contact area of the crankshaft journal refers to the contact and matching condition of the crankshaft journal and the bearing bush, and if the matching is not good, the engine fault is directly caused. In the past, the contact area of the journal can only be detected by using instruments such as a three-coordinate instrument, a contourgraph and the like. The contact area of the journal can be detected using this method, but there are many problems. The crankshaft needs to be subjected to constant temperature before detection is carried out by a first using instrument, the detection period is long, adjustment of polishing parameters cannot be timely and effectively guided, and the production efficiency is reduced. And a detection program needs to be programmed for detection by using an instrument, so that the workload is high, and the requirement on the skill of a programmer is high. The third detection result is not visual, an operator needs to have the capability of analyzing a detection report, misjudgment is easy, the error is large after processing, and the contact area of the shaft neck is poor.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem above, the utility model provides an examine utensil examines a simple structure to can be fast, accurate, audio-visual detect out the area of contact of axle journal. The specific technical scheme is as follows:

a crankshaft journal contact area gauge comprises a marble gauge block, a nylon base, a nylon upper cover and a handle; the lower side of the marble gauge block is a detection surface, and the upper part of the marble gauge block is bonded with the nylon upper cover into a whole; screw holes are arranged at two ends of the nylon upper cover, and one end of the handle is of a thread structure and is screwed in the screw holes; the lower part of the marble gauge block is arranged in the nylon base.

In order to facilitate rolling during measurement, the detection surface of the marble gauge block is obliquely arranged, so that different bearing of handles at two ends of the marble gauge block is ensured, and the included angle between the detection surface and a horizontal line is 3-5 degrees.

The corresponding inclined plane is arranged above the nylon base and corresponds to the detection surface.

The utility model has the advantages that:

simple structure and simple operation. The contact area condition of the crankshaft journal can be rapidly, accurately and visually determined on the processing site. The method can correctly guide the adjustment of the processing parameters, greatly shorten the inspection time of the contact area of the journal, improve the efficiency, reduce the error and improve the processing precision of the crankshaft journal.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic structural view of the nylon base plate when detached;

fig. 4 is a schematic view of a usage status of the present invention.

Detailed Description

The utility model is described in detail with the attached drawings, as shown in the figure, the utility model comprises a marble gauge block 1, a nylon base 2, a nylon upper cover 3 and a handle 4; the lower side of the marble gauge block 1 is a detection surface, and the upper part of the marble gauge block is bonded with the nylon upper cover 3 into a whole; screw holes 5 are formed in two ends of the nylon upper cover 3, and one end of the handle 4 is of a threaded structure and is screwed in the screw holes 5; the lower part of the marble gauge block 1 is arranged in a nylon base 2.

The included angle between the detection surface and the horizontal line is 3-5 degrees.

The corresponding inclined plane is arranged above the nylon base 2 and corresponds to the detection surface.

The utility model discloses during the use, need pull down nylon base 2 earlier, with the even blue oil of inspection area of contact of scribbling of detection face 11 of marble gage block 1. Then the handle 4 is held by hand to roll at a constant speed at the excircle of the detected shaft neck 6, so that the detection surface on the marble gauge block 1 is fully contacted with the excircle of the shaft neck. Therefore, the blue oil on the marble gauge block 1 can be attached to the outer circle of the shaft neck, and the contact area condition of the shaft neck can be detected visually, quickly and accurately according to the attachment condition of the blue oil on the outer circle of the shaft neck. And after one journal is detected, wiping off the blue oil on the measuring surface of the marble gauge block 1, uniformly coating the blue oil again, and detecting the contact area of the next journal.

Claims

1. The utility model provides a bent axle journal area of contact examines utensil which characterized in that: comprises a marble gauge block, a nylon base, a nylon upper cover and a handle; the lower side of the marble gauge block is a detection surface, and the upper part of the marble gauge block is bonded with the nylon upper cover into a whole; screw holes are arranged at two ends of the nylon upper cover, and one end of the handle is of a thread structure and is screwed in the screw holes; the lower part of the marble gauge block is arranged in the nylon base.

2. The crankshaft journal contact area gauge of claim 1, wherein: the included angle between the detection surface and the horizontal line is 3-5 degrees.

3. The crankshaft journal contact area gauge of claim 1, wherein: the corresponding inclined plane is arranged above the nylon base and corresponds to the detection surface.