KR20150073604A - Straightness/roundness measuring device of the piston inner surface carrier piston pin bearing insert of diesel locomotive is attached - Google Patents

Straightness/roundness measuring device of the piston inner surface carrier piston pin bearing insert of diesel locomotive is attached Download PDF

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Publication number
KR20150073604A
KR20150073604A KR1020130161500A KR20130161500A KR20150073604A KR 20150073604 A KR20150073604 A KR 20150073604A KR 1020130161500 A KR1020130161500 A KR 1020130161500A KR 20130161500 A KR20130161500 A KR 20130161500A KR 20150073604 A KR20150073604 A KR 20150073604A
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KR
South Korea
Prior art keywords
piston
piston carrier
insert bearing
carrier
pin insert
Prior art date
Application number
KR1020130161500A
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Korean (ko)
Inventor
고재준
이동심
문경호
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한국철도공사
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Publication date
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Priority to KR1020130161500A priority Critical patent/KR20150073604A/en
Publication of KR20150073604A publication Critical patent/KR20150073604A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

The present invention relates to a support frame, A rotary frame rotatably installed on one side of the upper surface of the support frame, the rotary frame supporting the piston carrier; A pair of fixed units installed on an upper surface of the support frame to closely contact and fix the piston carrier so as not to move; A guide frame coupled to the other side of the upper surface of the support frame and having a guide hole formed in a direction opposite to the piston carrier; A guide bar inserted into the guide hole; And an inner surface of the piston carrier, which is coupled to one end of the guide bar in the longitudinal direction thereof, and which is in close contact with an inner surface of the piston carrier on which the piston pin insert bearing is mounted and which is reciprocated by reciprocation of the guide bar to mount the piston pin insert bearing. And a dial gauge for measuring the circularity of the inner surface of the piston carrier, which is rotated by the rotation of the guide bar and on which the piston pin insert bearing is mounted. The piston carrier insert bearing of the diesel locomotive engine And a straightness / roundness measuring apparatus of the present invention.

Description

Technical Field [0001] The present invention relates to an apparatus for measuring a straightness / roundness of an inner surface of a piston carrier on which a piston pin insert bearing of a diesel locomotive is mounted,

The present invention relates to an apparatus for measuring straightness and roundness of an inner surface of a piston carrier on which a piston pin insert bearing of a diesel locomotive is mounted.

In a diesel locomotive, a piston pin insert bearing installed in a piston carrier is worn by friction, pressure, and heat generated by a two-stroke cycle of the piston during diesel locomotive operation, thereby reducing its service life.

At this time, if the surface of the piston pin insert bearing is bent, it is enlarged due to the engine failure of the diesel locomotive, which is the main cause of obstacle to the operation of the diesel locomotive.

In the past, the piston carrier was placed on the inspection workbench and the bend occurring on the inner surface of the piston pin insert bearing was visually inspected by the inspector.

However, there is a problem in that it is unreliable for the inspector to visually inspect the bend occurring on the inner surface of the piston pin insert bearing.

Therefore, there is a need to develop a straightness / roundness measuring apparatus for an inner surface of a piston carrier on which piston pin insert bearings of various diesel locomotives are mounted to solve the above problems.

As a related art, the difference between the radius of the running surface of the railway vehicle wheel and the radius of the circumference of the wheel flange cap in the measurement plane of Korean Patent No. 1004782, A measuring device on at least one rail of a railway track for measuring the roundness of railway vehicle wheels or individual railway vehicle wheels of a set of vehicle wheels, characterized in that, in a measuring path along a rail, a plurality of individual measurement sensors formed as a roller and spaced a lateral distance from each other and connected to said rail at said measurement plane perpendicular to the contact surface of each railway vehicle wheel and along the axis of rotation of the wheel set or railway vehicle wheel, And a rotation angle sensor for measuring the rotation angle of the wheel of the railway vehicle.

(Prior Art 1) Korean Patent No. 1004782 (Dec. 22, 2010)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems described above, and it is an object of the present invention to provide a piston pin insert bearing of a diesel locomotive which is capable of mechanically and accurately measuring the bending occurring in the inner surface of a piston carrier on which a piston pin insert bearing is mounted. And a straightness / roundness measuring device.

An apparatus 1000 for measuring the straightness / circularity of an inner surface of a piston carrier to which a piston pin insert bearing of a diesel locomotive according to the present invention is mounted comprises a support frame 100; A rotary frame 200 rotatably installed on one side of the upper surface of the support frame 100 and on which the piston carrier 10 is mounted; A pair of fixing units 300 installed on the upper surface of the supporting frame 100 to closely contact and fix the piston carrier 10 so as not to move; A guide frame 400 coupled to the other side of the upper surface of the support frame 100 and having a guide hole 401 formed in a direction opposite to the piston carrier 10; A guide bar 500 inserted into the guide hole 401; And a piston pin insert bearing coupled to one end in the longitudinal direction of the guide bar 500 and mounted on a piston pin insert disposed in the piston carrier 10, (15) on which the piston pin insert bearing is mounted and which is rotated by the rotation of the guide bar (500) and is mounted on the piston carrier inner surface (15) on which the piston pin insert bearing is mounted And a dial gauge 600 for measuring the roundness.

The fixed unit 300 includes a body 312 and a taper 314 connected to the body 312. The fixed unit 300 is connected to the taper 314 and has a contact tip 316 A first hollow hole 321 coupled to an upper surface of the support frame 100 and having the body 312 inserted at one side and the other longitudinal side of the support frame 100, A receiving member 320 communicating with the first hollow hole 321 and formed with a second hollow hole 322 through which the taper 314 and the tightening tip 316 are inserted and a second hollow hole 322 accommodated in the second hollow hole 322, One end of which is coupled to the first hollow hole 321 and the second hollow hole 322 and the other end of which is coupled to the close contact tip 316. The close contact tip 316 is urged by the elastic force of the piston carrier And a spring (330) tightly attached to the base (10).

The fixed unit 300 includes a runway 323 formed in the housing member 320 in the longitudinal direction around the first hollow hole 321 and coupled to the periphery of the body 312, And a handle (340) for moving the movable member (310).

Further, the contact tip 316 is characterized in that a magnet is installed therein.

A through hole 402 is formed in the center of the guide frame 400 and a through bolt 410 is screwed into the lower end of the hole 402 to connect the other side of the upper surface of the support frame 100 .

The straightness / circularity measuring device 1000 of the inner surface of the piston carrier, on which the piston pin insert bearing of the diesel locomotive is mounted, is mounted on both sides in the longitudinal direction of the guide bar 500 so as to adjust the inclination of the guide bar 500 A pair of snap rings 710 installed; And a fixing bolt 720 screwed into the retaining ring 710 to fix the retaining ring 710 so as not to move.

Accordingly, an apparatus for measuring the straightness / roundness of an inner surface of a piston carrier to which a piston pin insert bearing of a diesel locomotive according to the present invention is mounted comprises a support frame; A rotary frame rotatably installed on one side of the upper surface of the support frame, the rotary frame supporting the piston carrier; A pair of fixed units installed on an upper surface of the support frame to closely contact and fix the piston carrier so as not to move; A guide frame coupled to the other side of the upper surface of the support frame and having a guide hole formed in a direction opposite to the piston carrier; A guide bar inserted into the guide hole; And an inner surface of the piston carrier, which is coupled to one end of the guide bar in the longitudinal direction thereof, and which is in close contact with an inner surface of the piston carrier on which the piston pin insert bearing is mounted and which is reciprocated by reciprocation of the guide bar to mount the piston pin insert bearing. And a dial gauge which is rotated by the rotation of the guide bar to measure the roundness of the inner surface of the piston carrier on which the piston pin insert bearing is mounted. Thus, the straightness of the inner surface of the piston carrier on which the piston pin insert bearing is mounted There is an effect that mechanically accurate measurement can be performed by using a dial gauge for measuring the roundness.

1 is a perspective view of an apparatus for measuring the straightness / roundness of an inner surface of a piston carrier on which a piston pin insert bearing of a diesel locomotive according to the present invention is mounted.
FIG. 2 to FIG. 3 are diagrams showing the operation of the apparatus for measuring the straightness / roundness of the inner surface of the piston carrier on which the piston pin insert bearing of the diesel locomotive according to the present invention is mounted
4 is a perspective view of a fixing unit according to the present invention.
Fig. 5 is a diagram showing the operation of the fixing unit according to the present invention

Hereinafter, the technical idea of the present invention will be described more specifically with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the technical concept of the present invention, are incorporated in and constitute a part of the specification, and are not intended to limit the scope of the present invention.

The present invention relates to an apparatus for measuring straightness and roundness of an inner surface of a piston carrier on which a piston pin insert bearing of a diesel locomotive is mounted.

In the direction display of the present invention, the upper side of the drawing is defined as an upper side, the lower side of the drawing is defined as a lower side, the vertical direction of the drawing is defined as a vertical direction, and the longitudinal direction of the drawing is defined as a longitudinal direction.

FIG. 1 is a perspective view of an apparatus for measuring the straightness / circularity of an inner surface of a piston carrier on which a piston pin insert bearing of a diesel locomotive according to the present invention is mounted, and FIGS. 2 to 3 show a piston pin insert bearing mounted on a piston pin insert bearing of the diesel locomotive according to the present invention And an operating view of the straightness / roundness measuring device on the inner surface of the piston carrier. 2 is an operational view for measuring the straightness of an inner surface of a piston carrier on which a piston pin insert bearing of a diesel locomotive according to the present invention is mounted, and FIG. 3 is a schematic view of a diesel locomotive according to the present invention. Fig. 3 is an operation diagram relating to the roundness measurement of the straightness / roundness measuring device on the inner surface of the piston carrier to which the piston pin insert bearing is mounted. Fig.

1 to 3, an apparatus 1000 for measuring the straightness / circularity of an inner surface of a piston carrier to which a piston pin insert bearing of a diesel locomotive according to the present invention is mounted includes a support frame 100, a rotary frame 200, A pair of fixed units 300, a guide frame 400, a guide bar 500, and a dial gauge 600.

Here, the piston carrier 10 is installed in an engine of a diesel locomotive, and a piston carrier inner surface 15 on which a piston pin insert bearing is mounted is installed.

The piston carrier 10 has a piston carrier inner surface 15 on which a piston pin insert bearing is mounted so that oil can flow into the inner surface 15 of the piston carrier on which the piston pin insert bearing is mounted, .

The support frame 100 is a structure for stably mounting the rotary frame 200, the fixing unit 300 and the guide frame 400 on the ground, and has a plurality of screw holes Not shown) may be formed.

The rotary frame 200 is rotatably installed on one side of the upper surface of the support frame 100, and the piston carrier 10 is mounted thereon.

At this time, the rotary frame 200 may be rotatably installed on a rotary shaft (not shown) coupled to one side of the upper surface of the support frame 100 in a vertical direction.

The pair of fixed units 300 are installed on the upper surface of the support frame 100 and are installed around the piston carrier 10 to closely contact and fix the piston carrier 10 to prevent it from moving.

The guide frame 400 is coupled to the other side of the upper surface of the support frame 100 and a guide hole 401 is formed in a direction opposite to the piston carrier 10.

In this case, the guide hole 401 is preferably formed in a direction opposite to the piston carrier inner surface 15 on which the piston pin insert bearing installed in the piston carrier 10 is mounted.

The guide hole 401 is formed in a cylindrical shape.

The guide bar 500 is formed in a shape corresponding to the guide hole 401 and is inserted into the guide hole 401 and is reciprocated in the direction opposite to the piston carrier inner surface 15 on which the piston pin insert bearing is mounted. And can be rotated about the rotational axis in a direction opposite to the piston carrier inner surface 15 on which the piston pin insert bearing is mounted.

The dial gauge 600 is attached to one end of the guide bar 500 in the longitudinal direction and is in close contact with a piston carrier inner surface 15 on which a piston pin insert bearing installed in the piston carrier 10 is mounted, (500) to measure the straightness of the piston carrier inner surface (15) on which the piston pin insert bearing is mounted, and is rotated by the rotation of the guide bar (500) so that the piston pin insert bearing The circularity of the piston carrier inner surface 15 is measured.

That is, the dial gauge 600 measures the straightness and circularity of the piston carrier inner surface 15 on which the piston pin insert bearing is mounted, so that the bending of the piston carrier inner surface 15 on which the piston pin insert bearing is mounted It serves to measure accurately mechanically.

The degree of straightness and roundness of the inner surface 15 of the piston carrier on which the piston pin insert bearing measured by the dial gauge 600 is mounted are not limited. However, when the straightness is 0.025 mm or less and the roundness Is preferably 0.05 mm or less.

The applicant has derived the above values by various experiments and experiences.

Accordingly, the apparatus for measuring the straightness / circularity of the inner surface of the piston carrier to which the piston pin insert bearing of the diesel locomotive according to the present invention is mounted comprises a support frame 100; A rotary frame 200 rotatably installed on one side of the upper surface of the support frame 100 and on which the piston carrier 10 is mounted; A pair of fixing units 300 installed on the upper surface of the supporting frame 100 to closely contact and fix the piston carrier 10 so as not to move; A guide frame 400 coupled to the other side of the upper surface of the support frame 100 and having a guide hole 401 formed in a direction opposite to the piston carrier 10; A guide bar 500 inserted into the guide hole 401; And a piston carrier inner surface 15 which is coupled to one end of the guide bar 500 in the longitudinal direction and on which the piston pin insert bearing of the piston carrier 10 is mounted and is reciprocated by reciprocation of the guide bar 500 Measuring the straightness of the piston carrier inner surface 15 on which the piston pin insert bearing is mounted and measuring the roundness of the piston carrier inner surface 15 on which the piston pin insert bearing is mounted by being rotated by the rotation of the guide bar 500 The degree of circularity and roundness of the inner surface 15 of the piston carrier on which the piston pin insert bearing is mounted is measured by measuring the straightness and roundness of the inner surface 15 of the piston carrier on which the piston pin insert bearing is mounted There is an effect that the measurement can be performed mechanically accurately using a dial gauge.

A through hole 402 is formed in the center of the guide frame 400 and a through bolt 410 is screwed to the lower end of the hole 402 to guide the guide frame 400 to the support frame 100 As shown in Fig.

Accordingly, the guide frame 400 has a perforation hole 402 formed at the center thereof, thereby further reducing the area through which the through bolts 410 pass through the lower end of the guide frame 400.

The guide frame 400 may be divided into an upper frame and a lower frame starting from a guide hole 401 in which the guide bar 500 is inserted to allow the guide bar 500 to be inserted more easily .

The apparatus for measuring the straightness / circularity of the inner surface of a piston carrier on which the piston pin insert bearing of the diesel locomotive according to the present invention is mounted may further comprise a pair of snap rings 710 and a fixing bolt 720 have.

The pair of snap rings 710 are installed on both sides of the guide bar 500 in the longitudinal direction thereof and move in the longitudinal direction of the guide bar 500 to adjust the inclination of the guide bar 500 .

That is, the pair of snap rings 710 align the guide bars 500.

The fixing bolt 720 is screwed into the snap ring 710 to fix the snap ring 710 so that the snap ring 710 does not move any more.

Hereinafter, the configuration and operation principle of the fixed unit 300 according to the present invention will be described in more detail.

FIG. 4 is a perspective view of a fixing unit according to the present invention, and FIG. 5 is an operation diagram of a fixing unit according to the present invention

4 to 5, the fixed unit 300 according to the present invention may be configured to include a moving member 310, a receiving member 320, and a spring 330.

The moving member 310 is configured to be in close contact with the piston carrier 10 and includes a body 312, a taper 314, and a contact tip 316.

The body 312 may be formed in a cylindrical shape.

The taper 314 is connected to one longitudinal end of the body 312 and narrows as the body 312 moves away from the body 312.

The contact tip 316 is connected to one longitudinal end of the taper 314 and is configured to be in close contact with the piston carrier 10.

The receiving member 320 is configured to receive the moving member 310 therein, and a first hollow hole 321 and a second hollow hole 322 are formed.

The first hollow hole 321 is hollowed at one side of the longitudinal direction of the receiving member 320, and the body 312 of the moving member 310 is inserted.

The second hollow hole 322 is hollowed at one side of the longitudinal direction of the receiving member 320 and communicates with the first hollow hole 321 and is connected to the taper 314 of the moving member 310, (316) is inserted.

The spring 330 is accommodated in the second hollow hole 322 and is hooked on the outer peripheral surface of the taper 314 so that one end of the spring 330 in the longitudinal direction is inserted between the first hollow hole 321 and the second hollow hole 322 And the other end in the longitudinal direction is engaged with the close contact tip 316, and the close contact tip 316 is closely contacted to the piston carrier 10 by an elastic force.

The fixed unit 300 includes a runway 323 extending longitudinally around the first hollow hole 321 in the receiving member 320 and a handle 322 for moving the moving member 310 340). ≪ / RTI >

The handle 340 is coupled to the periphery of the body 312. Here, the operation principle of the handle 340 will be described in more detail as follows.

5A, the handle 340 moves the movable member 310 in a direction opposite to the piston carrier 10, that is, in a direction from the contact tip 316 toward the body 312 While the spring 330 is held in a compressed state and the contact tip 316 is spaced apart from the piston carrier 10 by a predetermined distance.

The handle 340 is rotated to rotate the body 312 so that the handle 312 is rotated along the runway 323 together with the body 312 without being mounted at one end in the lengthwise direction of the receiving member 320, The moving member 310 is moved in the direction opposite to the piston carrier 10 by the elasticity of the spring 330, that is, in the direction from the body 312 to the close contact tip 316 And the tight contact tip 316 is brought into close contact with the piston carrier 10.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1000: Straightness / roundness measuring device on the inner surface of a piston carrier on which a piston pin insert bearing of a diesel locomotive according to the present invention is mounted
100: Support frame
200: Rotating frame
300: fixed unit
310: moving member
312: body 314: taper
316: Clamping tip
320: housing member
321: first hollow hole 322: second hollow hole
323: runway
330: spring
340: Handle
400: guide frame
401: Guide hole 402: Perforation hole
410: Through bolt
500: Guide bar
600: Dial gauge
710: Snap ring
720: Fixing bolts

Claims (6)

A support frame (100);
A rotary frame 200 rotatably installed on one side of the upper surface of the support frame 100 and on which the piston carrier 10 is mounted;
A pair of fixing units 300 installed on the upper surface of the supporting frame 100 to closely contact and fix the piston carrier 10 so as not to move;
A guide frame 400 coupled to the other side of the upper surface of the support frame 100 and having a guide hole 401 formed in a direction opposite to the piston carrier 10;
A guide bar 500 inserted into the guide hole 401; And
The guide bar 500 is coupled to one end in the longitudinal direction of the guide bar 500 and is in close contact with the inner surface 15 of the piston carrier on which the piston pin insert bearing of the piston carrier 10 is mounted, The straightness of the piston carrier inner surface 15 on which the piston pin insert bearing is mounted is measured and the roundness of the piston carrier inner surface 15 on which the piston pin insert bearing is mounted is measured by the rotation of the guide bar 500 And a dial gauge (600) mounted on the inner surface of the piston carrier, wherein the piston pin insert bearing of the diesel locomotive is mounted.
The apparatus of claim 1, wherein the fixed unit (300)
A moving member 310 including a body 312 and a taper 314 connected to the body 312 and a contact tip 316 connected to the taper 314 and brought into close contact with the piston carrier 10, ,
A first hollow hole 321 coupled to an upper surface of the support frame 100 and having a body 312 inserted at one side and the other longitudinal side of the support frame 100 and a second hollow hole 321 communicated with the first hollow hole 321, And a second hollow hole 322 into which the tightening tip 316 is inserted,
The first hollow hole 321 is coupled to the second hollow hole 322 and the other end of the second hollow hole 322 is coupled to the close contact tip 316, And a spring (330) for pressing the contact tip (316) against the piston carrier (10) by an elastic force. The piston carrier insert bearing of the diesel locomotive is equipped with a straightness / (1000).
3. The apparatus of claim 2, wherein the fixed unit (300)
A runway 323 is formed in the housing member 320 in the longitudinal direction around the first hollow hole 321,
And a handle (340) coupled to the body (312) and configured to move the moving member (310). The diesel engine of claim 1, wherein the piston (310) Device (1000).
3. The device of claim 2, wherein the contact tip (316)
Wherein a magnet is installed in the inside of the piston carrier, and the piston pin insert bearing of the diesel locomotive is mounted.
The apparatus of claim 1, wherein the guide frame (400)
A perforation hole 402 is formed at the center,
Wherein a through bolt (410) is threadedly engaged with a lower end of the hole (402) and is coupled to the other side of the upper surface of the support frame (100). The diesel engine as claimed in claim 1, A straightness / roundness measuring device (1000).
The straightness / circularity measuring apparatus (1000) according to claim 1, wherein the inner surface of the piston carrier, on which the piston pin insert bearing of the diesel locomotive is mounted,
A pair of snap rings 710 installed on both sides of the guide bar 500 in the longitudinal direction to adjust the inclination of the guide bar 500; And
And a fixing bolt (720) inserted into the snap ring (710) to fix the snap ring (710) so as not to move. The piston ring A straightness / roundness measuring device (1000).
KR1020130161500A 2013-12-23 2013-12-23 Straightness/roundness measuring device of the piston inner surface carrier piston pin bearing insert of diesel locomotive is attached KR20150073604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130161500A KR20150073604A (en) 2013-12-23 2013-12-23 Straightness/roundness measuring device of the piston inner surface carrier piston pin bearing insert of diesel locomotive is attached

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130161500A KR20150073604A (en) 2013-12-23 2013-12-23 Straightness/roundness measuring device of the piston inner surface carrier piston pin bearing insert of diesel locomotive is attached

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KR20150073604A true KR20150073604A (en) 2015-07-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109612418A (en) * 2018-12-20 2019-04-12 武昌船舶重工集团有限公司 A kind of measuring mechanism applied to connection flange
CN112414356A (en) * 2020-11-13 2021-02-26 滨州博海精工机械有限公司 Comprehensive measuring mechanism
CN117169115A (en) * 2023-10-31 2023-12-05 南通飞轮剑杆纺机配件有限公司 Spinning machine shaft part detection device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109612418A (en) * 2018-12-20 2019-04-12 武昌船舶重工集团有限公司 A kind of measuring mechanism applied to connection flange
CN112414356A (en) * 2020-11-13 2021-02-26 滨州博海精工机械有限公司 Comprehensive measuring mechanism
CN112414356B (en) * 2020-11-13 2022-07-05 滨州博海精工机械有限公司 Comprehensive measuring mechanism
CN117169115A (en) * 2023-10-31 2023-12-05 南通飞轮剑杆纺机配件有限公司 Spinning machine shaft part detection device
CN117169115B (en) * 2023-10-31 2023-12-26 南通飞轮剑杆纺机配件有限公司 Spinning machine shaft part detection device

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