CN218955640U

CN218955640U - Large-scale bent axle measuring device in diesel engine

Info

Publication number: CN218955640U
Application number: CN202223529144.5U
Authority: CN
Inventors: 洪汉忠; 杨平
Original assignee: Guangzhou Haizhuo Shipbuilding Technology Co ltd
Current assignee: Guangzhou Haizhuo Shipbuilding Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-02
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to the technical field of diesel engine production equipment, in particular to a large-scale crankshaft measuring device in a diesel engine, which comprises a linear guide rail, a measuring ruler arranged on the linear guide rail and cushion blocks respectively used for supporting two ends of a crankshaft so that the crankshaft can be overhead above the guide rail, wherein the length direction of the linear guide rail is consistent with the length direction of the crankshaft, the heights of different parts of a connecting rod large end journal or a main journal of the crankshaft can be measured by moving the measuring ruler, and the radial runout of the main journal of the crankshaft is measured by rotating the crankshaft; the linear guide rail is combined with the measuring ruler and the cushion block to replace a traditional large-scale measuring platform, so that equipment cost is effectively reduced, and the result error of measuring by adopting the structure is small through practical verification, so that the basic accuracy requirement is met, the cost is low, the structure is simple, the replacement is convenient, the occupied area is small, crankshafts of various sizes can be used, the practicability is high, and the functions are multiple.

Description

Large-scale bent axle measuring device in diesel engine

Technical Field

The utility model relates to the technical field of diesel engine production equipment, in particular to a large-scale crankshaft measuring device in a diesel engine.

Background

After the connecting rod bearing bush or the main bearing bush of the diesel engine is burnt, the crankshaft is easy to bend and deform due to the high temperature generated in the bush burning process, and the working performance of the bearing bush can be greatly affected. At present, an evaluation and measurement mechanism for evaluating and measuring the deformation of the crankshaft is too complex, occupies large area, has high cost, is not suitable for different types of crankshafts, and has single function.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a large-scale crankshaft measuring device in a diesel engine, which has the advantages of simple structure, small occupied area, low cost and suitability for multiple types of crankshafts.

The task of the utility model is realized by the following technical scheme:

the utility model provides a large-scale bent axle measuring device in diesel engine, including linear guide, locate on the linear guide and can relative linear guide gliding dipperstick and be used for supporting the both ends of bent axle respectively so that the bent axle can be built on stilts cushion in the guide rail top, linear guide's length direction is unanimous with the length direction of bent axle, can measure the height of the big end journal of connecting rod or the different positions of main journal of bent axle through removing the dipperstick, makes the dipperstick can carry out radial runout measurement to the main journal of bent axle through rotatory bent axle.

As an optimal technical scheme, the cushion block is of a V shape, a U shape or a W shape.

As the preferable technical scheme, the linear guide rail is provided with the sliding block in a sliding way, the measuring ruler is connected with the sliding block through a connecting rod, a connecting piece capable of moving up and down relative to the measuring ruler is arranged on the connecting rod, the measuring ruler is detachably connected with the connecting piece, and the connecting piece moves up and down and can drive the measuring ruler to move to adjust the height of the measuring ruler.

As an optimal technical scheme, the two cushion blocks are respectively and fixedly connected above the two end parts of the linear guide rail.

As an optimal technical scheme, the bottom of the linear guide rail is provided with an adjusting screw for adjusting the parallelism of the guide rail.

Compared with the prior art, the large-scale bent axle measuring device in diesel engine that this patent provided has following advantage: the measuring ruler is moved to measure the heights of different parts of the connecting rod big end journal or the main journal of the crankshaft to obtain the parallelism of the surfaces of the connecting rod big end journal or the main journal, and the measuring ruler is rotated to measure the radial runout of the main journal of the crankshaft to obtain the concentricity of each main journal.

The conception, specific structure, and resulting effects of the present utility model will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present utility model.

Drawings

Fig. 1 is a schematic structural view of a large-sized crankshaft measuring device in a diesel engine.

Wherein, 1, a linear guide rail; 11. a slide block; 12. an adjusting screw; 2. a measuring ruler; 3. a cushion block; 4. a connecting rod; 41. a connecting piece; A. and (3) a crankshaft.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the description of the specific embodiments is intended for purposes of illustration only and is not intended to limit the scope of the present disclosure. Furthermore, it should be understood that the terms "first," "second," and the like, as used in the specification and the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another; the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one of; the terms "plurality," "a plurality," and the like, mean two or more. Unless otherwise indicated, the terms "front," "rear," "lower," "upper," and the like are used for convenience of description and are not limited to one position or one spatial orientation. The terms "mounted," "connected," "pivotally connected," and the like should be construed broadly and may be connected directly or indirectly through intervening elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

As shown in fig. 1, the present embodiment provides a large-sized crankshaft measuring device in a diesel engine, which includes a linear guide rail 1, a measuring scale 2 disposed on the linear guide rail 1 and capable of sliding relative to the linear guide rail 1, and a pad 3 respectively used for supporting two ends of a crankshaft a so that the crankshaft a can be suspended above the guide rail, wherein the length direction of the linear guide rail 1 is consistent with the length direction of the crankshaft a, and the measuring scale 2 can measure the heights of different parts of the large end journal or the main journal of a connecting rod 4 of the crankshaft a by moving the measuring scale 2, and the measuring scale 2 can measure the radial runout of the main journal of the crankshaft a by rotating the crankshaft a.

In this patent, can measure the height of the different positions of 4 big end journals of connecting rod or main journal of bent axle A through removing dipperstick 2, obtain the depth of parallelism on 4 big end journals of connecting rod or main journal surface, and make dipperstick 2 carry out radial runout to crank axle A's main journal through rotatory bent axle A and measure, obtain the concentricity of each main journal, through the data of the depth of parallelism on 4 big end journals of connecting rod or main journal surface and the data of concentricity of each main journal that obtain, just can synthesize and judge the damage degree after the burning tile trouble takes place for crank axle A connecting rod 4 big end journals or main journal, and can obtain practical accurate conclusion whether change or maintain bent axle A in actual maintenance process, adopt linear guide 1 to combine dipperstick 2 and cushion 3 to replace traditional large-scale measurement platform, effectively reduce equipment cost, and the result error of adopting above-mentioned structure to measure through the practice verification is very little, satisfy basic accuracy requirement, and is with low costs, and simple structure is changed conveniently and area is little, and can use bent axle A of size type, the practicality is strong, and multiple functions.

As a preferred embodiment, the cushion block 3 is V-shaped, U-shaped or W-shaped.

As a preferred embodiment, the measuring scale 2 is a dial indicator, the linear guide rail 1 is slidably provided with a sliding block 11, the measuring scale 2 is connected with the sliding block 11 through a connecting rod 4, a connecting piece 41 capable of moving up and down relative to the connecting rod 4 is arranged on the connecting rod 4, the measuring scale 2 is detachably connected with the connecting piece 41, and the connecting piece 41 moves up and down and can drive the measuring scale 2 to move to adjust the height of the measuring scale 2. The height requirement of the measuring scale 2 is met by adjusting the up-and-down movement of the connecting piece 41, and the transverse movement of the measuring scale 2 is met by adjusting the left-and-right movement of the connecting rod 4, so that the operation is convenient.

As a preferred embodiment, the two pads 3 are respectively fixedly connected above the two end portions of the linear guide 1.

As a preferred embodiment, the bottom of the linear guide 1 is provided with an adjusting screw 12 for adjusting the parallelism of the guide.

The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by those skilled in the art that the scope of the utility model referred to in this application is not limited to the embodiments described above in particular combinations of features, but also covers other embodiments formed by any combination of the features described above or their equivalents without departing from the inventive concept. Such as those described above, are provided in alternative embodiments with similar functional features as those disclosed in the present application (but not limited to).

Claims

1. The utility model provides a large-scale bent axle measuring device in diesel engine, a serial communication port, including linear guide (1), locate on linear guide (1) and can be relative linear guide (1) gliding dipperstick (2), and be used for supporting the both ends of bent axle respectively so that the bent axle can be makeed somebody a mere figurehead in cushion (3) of guide rail top, the length direction of linear guide (1) is unanimous with the length direction of bent axle, can measure the height of the different positions of connecting rod (4) big end journal or the main journal of bent axle through removing dipperstick (2), make dipperstick (2) can carry out radial runout measurement to the main journal of bent axle through rotatory bent axle.

2. The large-sized crankshaft measuring device in a diesel engine according to claim 1, wherein the pad (3) is V-shaped, U-shaped or W-shaped.

3. The large-scale crankshaft measuring device in the diesel engine according to claim 1, wherein the measuring scale is a dial indicator, a sliding block (11) is slidably arranged on the linear guide rail (1), the measuring scale (2) is connected with the sliding block (11) through a connecting rod (4), a connecting piece (41) capable of moving up and down relative to the connecting rod (4) is arranged on the connecting rod (4), the measuring scale (2) is detachably connected with the connecting piece (41), and the connecting piece (41) moves up and down and can drive the measuring scale (2) to move to adjust the height of the measuring scale (2).

4. The large-scale crankshaft measuring device in a diesel engine according to claim 1, characterized in that two cushion blocks (3) are fixedly connected above both end portions of the linear guide rail (1), respectively.

5. The large-scale crankshaft measuring device in a diesel engine according to claim 1, characterized in that the bottom of the linear guide rail (1) is provided with an adjusting screw (12) for adjusting the parallelism of the guide rail.