CN209813944U

CN209813944U - Flywheel rotating tool

Info

Publication number: CN209813944U
Application number: CN201920660179.1U
Authority: CN
Inventors: 杨春波
Original assignee: Zhoushan Haishun Industry Co Ltd
Current assignee: Zhoushan Haishun Industry Co Ltd
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2019-12-20
Anticipated expiration: 2029-05-09

Abstract

The utility model relates to a flywheel rotating tool, which comprises a rotating shaft, wherein a flange is arranged on the rotating shaft to divide the rotating shaft into a left rotating shaft part and a right rotating shaft part, a plurality of groups of grooves are uniformly distributed on the rotating shaft at the left end in the circumferential direction, the cross section of each groove is of a V-shaped structure, and a fillet is arranged between two side walls of the V-shaped structure; the right rotating shaft is a cylindrical structure with six groups of planes uniformly distributed in the circumferential direction; the left end rotating shaft is provided with a blind hole formed inwards from the left side surface. The utility model discloses the axis of rotation is by 45 steel surface chromium plating composition, intensity is high, and the hardness is big, and the Vickers Hardness (HV) on axis of rotation surface is 30, and the radial circle of axis of rotation is jumped and is not more than 0.02mm, and the torque of axis of rotation is not less than 50 N.m, and the axial pulling force of axis of rotation is not less than 100N; the utility model discloses can easily rotate the flywheel, adjust the fit clearance of engine, effectively promote repair efficiency.

Description

Flywheel rotating tool

Technical Field

The utility model relates to an equipment field is repaiied to vapour, and more specifically the utility model relates to a flywheel rotating tool that says so.

Background

Spark timing is a fundamental requirement for engine operation. The ignition timing is misaligned, which causes the engine to work abnormally, so that a plurality of faults occur, the power of the engine is reduced, the oil consumption is increased, and even parts are damaged. The adjustment of the ignition timing must be checked during maintenance of the vehicle. The flywheel is provided with a gear ring which is jointed with a starter, so that an engine can be started conveniently, the flywheel is difficult to be turned, and the matching clearance of the engine is adjusted by pulling one tooth of a screwdriver in the prior art, which wastes time and labor, so that the prior art needs to be improved to realize the purpose of easily turning the flywheel to adjust the matching clearance of the engine.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's weak point, provide a flywheel rotating tool, intensity is high, and hardness is big, and the precision is high, can easily rotate the flywheel, adjusts the fit clearance of engine, effectively promotes repair efficiency.

The technical solution of the utility model is as follows:

a flywheel rotating tool comprises a rotating shaft, wherein a flange is arranged on the rotating shaft to divide the rotating shaft into a left rotating shaft part and a right rotating shaft part, a plurality of groups of grooves are uniformly distributed on the circumference of the left rotating shaft, the cross sections of the grooves are of V-shaped structures, and fillets are arranged between two side walls of each V-shaped structure; the right rotating shaft is a cylindrical structure with six groups of planes uniformly distributed in the circumferential direction; and a blind hole formed inwards from the left side is formed in the left-end rotating shaft.

Preferably, the rotating shaft is formed by steel surface chrome plating of 45 steel.

Preferably, the total length of the rotating shaft is 83mm, the outer diameter of the left rotating shaft is 29mm, the length of the left rotating shaft is 62mm, the outer diameter of the flange is 40mm, the length of the flange is 5mm, and the length of the left rotating shaft is 16 mm.

Preferably, chamfers are respectively arranged on the left side of the left end rotating shaft and the right side of the right end rotating shaft.

Preferably, the grooves have seven groups, the seven groups of grooves divide the left end rotating shaft into gear shafts with seven tooth forms, and the thickness of the root part of each tooth form is 5.3mm, and the thickness of the top part of each tooth form is 2.5 mm.

Preferably, the size of the rounded corner is 2 mm.

Preferably, the blind hole is an integrated structure consisting of a round hole and a conical hole, the diameter of the round hole is 5mm, and the depth of the round hole is 7 mm.

Preferably, the diameter of the right-end rotating shaft is 22mm, six groups of planes are opposite to each other in pairs, and the distance between the two groups of opposite planes is 19.7 mm.

Preferably, the groove is a groove body which is formed by extending from the left side surface of the left end rotating shaft to the right to the middle part of the left end rotating shaft and then extending to the outer surface of the left end rotating shaft in an inclined way.

The beneficial effects of the utility model reside in that:

the utility model discloses a flywheel rotating tool meshes with the outer ring gear of flywheel to can drive the rotation of bent axle, so that adjustment and inspection ignition in right time, fuel feeding, advance angle and valve clearance, it can easily rotate the flywheel, adjusts the fit clearance of engine, effectively promotes repair efficiency.

The utility model is composed of No. 45 steel surface chromium plating, the Vickers Hardness (HV) of the product surface is 30, and the weight of the product is 0.323 kg; detecting the groove graduation of the product by a special vernier caliper with the precision of 0.01mm, and calculating the error of the groove graduation, wherein the error of the groove graduation is not higher than 0.05 mm; the radial circular runout of the product is not more than 0.02 mm; the torque of the product is not lower than 50 N.m; the axial tension of the product is not lower than 100N; the salt spray test grade of the product is in accordance with 8 grades in GB/T6461-2002; after the drop test is carried out, the surface of the product cannot have cracks or damages, and the damages influencing the service performance cannot be generated.

Drawings

The invention will be further explained with reference to the drawings:

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

FIG. 2 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 3 is a cross-sectional view of C-C of FIG. 1;

in FIGS. 1 to 3: 1-a rotating shaft; 2-a flange; 3-left end shaft; 4-a right end rotating shaft; 5, a groove; 6-rounding off; 7-plane; 8, blind holes.

Detailed Description

In the embodiment, referring to the attached drawings 1-3, the flywheel rotating tool comprises a rotating shaft 1, wherein a flange 2 is arranged on the rotating shaft to divide the rotating shaft into a left rotating shaft 3 and a right rotating shaft 4, a plurality of groups of grooves 5 are uniformly distributed on the circumference of the left rotating shaft, the cross sections of the grooves are V-shaped structures, and fillets 6 are arranged between two side walls of each V-shaped structure; the right rotating shaft 4 is a cylindrical structure with six groups of planes 7 uniformly distributed in the circumferential direction; and a blind hole 8 formed inwards from the left side is formed in the left end rotating shaft.

The rotating shaft is composed of 45 steel surface chromium plating, and is tested according to the related specification of micro Vickers hardness in GB/T4340-2009, and the Vickers Hardness (HV) of the product surface is 30.

The total length of the rotating shaft is 83mm, the outer diameter of the left end rotating shaft is 29mm, the length of the left end rotating shaft is 62mm, the outer diameter of the flange is 40mm, the length of the flange is 5mm, and the length of the left end rotating shaft is 16 mm. The basic overall dimension of the product is detected by a special or general measuring tool with the precision of 0.1 mm. The weight of the individual product is measured with an electronic balance with an accuracy of 1g, which should be 0.323 kg.

And chamfers are respectively arranged on the left side of the left end rotating shaft and the right side of the right end rotating shaft.

The left end rotating shaft is divided into seven gear shafts with seven tooth forms by the seven groups of grooves, the thickness of the root part of each tooth form is 5.3mm, and the thickness of the top part of each tooth form is 2.5 mm. And detecting the groove graduation of the product by using a special vernier caliper with the precision of 0.01mm, and calculating the error of the groove graduation, wherein the error of the groove graduation is not higher than 0.05 mm.

The size of the fillet is 2 mm.

The blind hole is an integrated structure consisting of a round hole with the diameter of 5mm and a conical hole, and the depth of the round hole is 7 mm.

The diameter of the right-end rotating shaft is 22mm, six groups of planes are opposite to each other in pairs, and the distance between the two groups of opposite planes is 19.7 mm.

The groove is a groove body which is formed by extending from the left side surface of the left end rotating shaft to the right to the middle part of the left end rotating shaft and then extending to the outer surface of the left end rotating shaft in an inclined mode.

The radial circle run-out test of this product: the instrument deflection appearance (percentage table or amesdial), measurement table frame and indicator, the experimental step: the indicating gauge is arranged on the measuring gauge frame, the indicating gauge head contacts the surface of the measured compasses, the pointer indicates 1/3 which can not exceed the measuring range of the indicating gauge, the measuring head is vertical to the axis, and the indicating gauge is adjusted to zero. And (4) slightly rotating the measured workpiece for one circle, wherein the maximum difference value of the readings of the indicating meter is the radial runout on the single measuring section. The measured run-out values are recorded on a plurality of normal sections according to the method, and the maximum value of the run-out values measured on all the sections is taken as the radial circular run-out of the part. The radial circular runout of the product can not exceed 0.02 mm.

The torque of the product is detected by a torque and rotation speed measuring instrument, and the torque of the product is not less than 50 N.m.

And detecting the axial tension of the product according to the related specification of JB/T9373-2014, wherein the axial tension of the product is not lower than 100N.

After 6h of neutral salt spray test according to the relevant regulations of GB/T10125-2012, the salt spray test grade of the product is evaluated according to the relevant regulations of GB/T6461-2002, and the product is in accordance with 8 grades of GB/T6461-2002.

The product is subjected to free falling from a platform with the height of 1m, the bottom surface is a concrete cement ground, 3 times of tests are carried out, the appearance of the product is observed after the tests are finished, and after the falling tests are carried out, cracks and damage cannot be caused on the surface of the product, and damage influencing the service performance cannot be caused.

The working process of the product is as follows: the valve cover cap is taken down, the flywheel tool of the utility model is placed on the rotating flywheel, the groove 5 is matched with the teeth of the rotating flywheel, the flywheel rotating tool and the rotating flywheel are mutually clamped, then a spanner is placed in the rotating shaft at the right end, the flywheel rotating tool is slowly rotated, the piston is just to the top compression dead center position, the scale mark on the rotating flywheel is aligned with the pointer on the shell, and the piston of the engine cylinder is positioned at the ignition timing position; and then adjusting the valve clearance, and adjusting the clearance to be within a normal range, generally within the range of 0.15-0.4 mm, according to the ignition sequence and the arrangement sequence of the intake valve and the exhaust valve. After the adjustment is finished, whether the valve clearance and the ignition time meet the requirements is checked again.

The above embodiments are specific descriptions of the present invention, and are only further descriptions of the present invention, which should not be construed as limitations of the protection scope of the present invention, and some non-essential modifications and adjustments made by those skilled in the art according to the above embodiments are all within the protection scope of the present invention.

Claims

1. A flywheel turning tool comprising a turning shaft, characterized in that: the rotating shaft is provided with a flange which divides the rotating shaft into a left rotating shaft part and a right rotating shaft part, a plurality of groups of grooves are uniformly distributed on the circumference of the left rotating shaft, the cross section of each groove is of a V-shaped structure, and a fillet is arranged between two side walls of the V-shaped structure; the right rotating shaft is a cylindrical structure with six groups of planes uniformly distributed in the circumferential direction; and a blind hole formed inwards from the left side is formed in the left-end rotating shaft.

2. A flywheel turning tool as defined in claim 1, wherein: the rotating shaft is made of No. 45 steel with chrome-plated steel surface.

3. A flywheel turning tool as defined in claim 1, wherein: the total length of the rotating shaft is 83mm, the outer diameter of the left end rotating shaft is 29mm, the length of the left end rotating shaft is 62mm, the outer diameter of the flange is 40mm, the length of the flange is 5mm, and the length of the left end rotating shaft is 16 mm.

4. A flywheel turning tool as defined in claim 1, wherein: and chamfers are respectively arranged on the left side of the left end rotating shaft and the right side of the right end rotating shaft.

5. A flywheel turning tool as defined in claim 1, wherein: the left end rotating shaft is divided into seven gear shafts with seven tooth forms by the seven groups of grooves, the thickness of the root part of each tooth form is 5.3mm, and the thickness of the top part of each tooth form is 2.5 mm.

6. A flywheel turning tool as defined in claim 5, wherein: the size of the fillet is 2 mm.

7. A flywheel turning tool as defined in claim 1, wherein: the blind hole is an integrated structure consisting of a round hole with the diameter of 5mm and a conical hole, and the depth of the round hole is 7 mm.

8. A flywheel turning tool as defined in claim 1, wherein: the diameter of the right-end rotating shaft is 22mm, six groups of planes are opposite to each other in pairs, and the distance between the two groups of opposite planes is 19.7 mm.

9. A flywheel turning tool as defined in claim 1, wherein: the groove is a groove body which is formed by extending from the left side surface of the left end rotating shaft to the right to the middle part of the left end rotating shaft and then extending to the outer surface of the left end rotating shaft in an inclined mode.