CN108645703A - A kind of diesel engine main bearing shell specimen holder device and method of busbar automatic alignment - Google Patents
A kind of diesel engine main bearing shell specimen holder device and method of busbar automatic alignment Download PDFInfo
- Publication number
- CN108645703A CN108645703A CN201810563301.3A CN201810563301A CN108645703A CN 108645703 A CN108645703 A CN 108645703A CN 201810563301 A CN201810563301 A CN 201810563301A CN 108645703 A CN108645703 A CN 108645703A
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- test specimen
- bearing shell
- clamping piece
- diesel engine
- automatic alignment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Engines (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention discloses a kind of the diesel engine main bearing shell specimen holder device and clamp method of busbar automatic alignment.The device includes loading frame, clamping piece and spherical plain bearing rod end；U-shaped groove is symmetrically provided on loading frame two side；The top of clamping piece semi arch groove walls is equipped with the trapezoidal groove of installation bearing shell test specimen in an axial direction, it is equipped with the square through hole of installation blocky test specimen and wedge block in the left and right semi arch groove walls upper edge radial symmetric apart from one acute angle of trapezoidal groove, the rectangular recess of a upper opening is symmetrically provided on clamping piece or so lateral surface；Bearing shell test specimen has certain rotational angle in trapezoidal groove, to the test specimen with certain size error, can still realize reliable grip；Adjustment length adjusting screw is, it can be achieved that the blocky diametrical extension elongation of test specimen is adjusted；Spherical plain bearing rod end is made of Internal and external cycle spherical in shape, and ball pair can rotate or make banking motion within a certain angle, ensure that pressure straight down, makes the busbar automatic alignment of bearing shell test specimen and bent axle test specimen always.
Description
Technical field
The present invention relates to the piece fixture design fields of friction wear testing machine, especially diesel engine bush and crank shaft friction
Bearing shell piece fixture in experiment.
Background technology
The base bearing of marine diesel is the sliding bearing of a pair of of bearing shell composition, is installed at main bearing journal, for branch
Bent axle is held, ensures the axis of operation of bent axle, makes bent axle in rotation with small friction and wear passing power.Base bearing bears multiple
Miscellaneous periodic shock load effect, leads to premature wear, fatigue flake, or even sting the major accident of axis tile kilning.Therefore,
It needs to carry out friction and wear test to bearing shell and bent axle.
The piece fixture of base bearing break-in at present is less and does not have the function of busbar automatic alignment.Due to processing, installing mistake
After the factors such as difference easily cause bearing shell and crankshaft installed, busbar so as to cause discontinuity to just, not influencing experiment number
According to accuracy；And clamping piece internal circular surfaces of the present invention are provided with rectangular recess, can be used for placing blocky test specimen, be conducive to visit
The Bearing Materials of rope high quality break-in.
Invention content
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of diesel engine main bearing shell of busbar automatic alignment
Specimen holder device and clamp method.
Bearing shell cutting sample can be clamped in the device, and standard bulk test specimen made of bush material can also be clamped.Cam lock
Tight screw and trapezoidal groove can also realize reliable grip to the bearing shell test specimen with certain size error；The blocky test specimen side of being placed on
In shape through-hole, by the adjustable blocky test specimen of adjustment length adjusting screw in radial extension elongation；Spherical plain bearing rod end is by being in
Spherical Internal and external cycle composition, ball pair can rotate or make banking motion within a certain angle, ensure that pressure always straight down,
So that the busbar automatic alignment of bearing shell test specimen and bent axle test specimen, with reach when evaluating bearing shell breaking-in quality the accuracy of data with
Exploration to new material.
In order to achieve the above objectives, technical solution is used by the present invention realizes purpose：
A kind of diesel engine main bearing shell specimen holder device of busbar automatic alignment, including the clamping piece 11 being connected and load
Frame 4, the clamping piece 11 be the inverted " u " character form structure part equipped with semicircle arc fluting, the top of semi arch groove walls in an axial direction
Trapezoidal groove equipped with installation bearing shell test specimen 18, it is radially right in the left and right semi arch groove walls apart from one acute angle of trapezoidal groove
Claim the square through hole for being equipped with installation blocky test specimen 17 and wedge block 16, it is symmetrical on inverted " u " character form structure part or so lateral surface
The rectangular recess of a upper opening is offered, the rectangular recess lower part is equipped with the tapped through hole of installation length adjusting screw 1, institute
The right angled triangle sliding block 15 for being mounted in rectangular recess and being meshed with wedge block 16 is stated, is fixedly connected outside the rectangular recess
There is the clamping piece outside plate 2 of covering rectangular recess.
The loading frame 4 is "U" shaped structural member, " u "-shaped groove is symmetrically provided on 4 two side of loading frame, at " U "
Band reeded axis 5 in both ends is installed in connected in star, axle sleeve 13 and rod end joint shaft are set on the reeded axis of both ends band 5
6 are held, the spherical plain bearing rod end 6 is connected with press rods 7.
Further preferably, the cam lock for adjusting is additionally provided in large scale one end groove of trapezoidal groove described above
Tight screw 10.It is additionally provided with poke rod on the camlock screw 10.
Further preferably, above-mentioned to be additionally provided on the one side of the vertical rectangular through-bore axis of the loading frame 4 for twisting
The holding screw 9 of tight bulk test specimen.
Further preferably, acute angle described above refer to relative angle between trapezoidal groove and square through hole be 55 °~
60°。
Further preferably, the trapezoidal angle of trapezoidal groove described above is 15 °.
Further preferably, the connection of clamping piece 11 and loading frame 4 described above is connected using loading frame screw 12.
Further preferably, spherical plain bearing rod end 6 described above is made of Internal and external cycle spherical in shape, and ball pair can be at certain angle
Banking motion is rotated or made in degree, and the Internal and external cycle realizes the rigid connection of ball pair using spherical plain bearing rod end holding screw 14.
In order to achieve the above objectives, another technical solution is used by the present invention realizes purpose：
A kind of clamp method of the diesel engine main bearing shell specimen holder device of busbar automatic alignment, includes the following steps：
(1) bearing shell test specimen 18 is promoted inward from the trapezoidal groove large scale end of clamping piece 11, until radially can not
Mobile, the poke rod stirred on camlock screw 10 locks it；
(2) rectangular recess being provided with by 11 left and right sides of clamping piece, the square through hole is placed in by wedge block 16
In one end, the bevel edge of right angled triangle sliding block 15 is meshed with the bevel edge of wedge block 16 and is placed in rectangular recess, is then adopted
Clamping piece outside plate 2 is fixed on clamping piece 11 with plate bolt outside clamping piece 3；
(3) blocky test specimen 17 is mounted in the other end of the square through hole；By adjustment length adjusting screw 1, adjust
Section right angled triangle sliding block 15 slides up and down in rectangular recess, and wedge block 16 is driven to slide in radial directions, to real
Adjusting of the existing bulk test specimen 17 in radial extension elongation；Then blocky test specimen holding screw 9 is tightened, is realized to blocky test specimen 17
Locking；
(4) clamping device for installing bearing shell test specimen 18 and blocky test specimen 17 is installed with the cooperation of bent axle test specimen 8, that is, completed
The clamping of test specimen.
Advantageous effect：Spherical plain bearing rod end in the present invention is mainly made of Internal and external cycle spherical in shape, and contact surface is ball
Face shape can rotate or make banking motion within a certain angle, ensure that by press rods transmission come pressure always vertically to
Under, make bearing shell test specimen and bent axle test specimen busbar automatic alignment, realizes the automatic adjusument of busbar；Standard bulk test specimen is placed on
In rectangular recess, by adjustment length adjusting screw, right angled triangle sliding block slides up and down in rectangle sliding slot, drives wedge shape sliding
Block slides in radial directions, to realize that blocky test specimen is adjusted in radial extension elongation；It was tested in friction and wear test
Cheng Zhong, uniform force are conducive to obtain accurate experimental data；And with angled trapezoidal groove and camlock bolt
Reliable grip still may be implemented to the bearing shell test specimen with certain size error in combined locking；Camlock bolt, which has, to be dialled
Lever, clamp operation is simple and fast, avoids the problem of bolt locks low timeliness rate and spanner insufficient space；Loading frame both sides
" u "-shaped groove is symmetrically provided on wall so that the installation and removal of whole device are very easy.
Description of the drawings
Fig. 1 is the diesel engine main bearing shell specimen holder device installation diagram of busbar automatic alignment of the present invention；
Fig. 2 (a) is the half sectional view of clamping piece of the present invention；
Fig. 2 (b) is the upward view of clamping piece of the present invention；
Fig. 2 (c) is the sectional view in the directions A-A of Fig. 2 (a)；
Fig. 3 (a) is the front view of spherical plain bearing rod end of the present invention；
Fig. 3 (b) is the sectional view of spherical plain bearing rod end of the present invention.
In figure：1. length adjustment screw, 2. clamping piece outside plates, the outer plate bolt of 3. clamping pieces, 4. loading frames, 5. both ends carry
The axis of groove, 6. spherical plain bearing rod ends, 7. press rods, 8. bent axle test specimens, 9. holding screws, 10. camlock screws, 11. folders
Gripping member, 12. loading frame screws, 13. axle sleeves, 14. spherical plain bearing rod end holding screws, 15. right angled triangle sliding blocks, 16. wedge shapes
Sliding block, 17. blocky test specimens, 18. bearing shell test specimens.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is described in further detail.It should be appreciated that specific embodiment described herein is used only for explaining the present invention,
It is not intended to limit the present invention.
The direction term that the present invention is previously mentioned, for example, "upper", "lower", "front", "rear", "left", "right", "inner", "outside", "
Side " etc. is only the direction of refer to the attached drawing formula.Therefore, use direction term be for illustrating and understanding the present invention, not for
The limitation present invention.
As shown in Figure 1, for the present invention a kind of busbar automatic alignment diesel engine main bearing shell specimen holder device, mainly by
The reeded axis 5 of clamping piece 11, loading frame 4, both ends band, spherical plain bearing rod end 6 and press rods 7 form.Wherein, 11 He of clamping piece
Loading frame 4 is achieved a fixed connection by loading frame screw 12.
The loading frame 4 is "U" shaped structural member, " u "-shaped groove is symmetrically provided on 4 two side of loading frame, at " U "
Band reeded axis 5 in both ends is installed in connected in star, axle sleeve 13 and rod end joint shaft are set on the reeded axis of both ends band 5
Hold 6；Press rods 7 are connected on spherical plain bearing rod end 6.
As shown in Fig. 2 (a), the clamping piece 11 is the inverted " u " character form structure part equipped with semicircle arc fluting, recessed in semi arch
The top of cell wall is equipped with the trapezoidal groove of installation bearing shell test specimen 18 in an axial direction, in the left and right semi arch apart from one acute angle of trapezoidal groove
Groove walls upper edge radial symmetric is equipped with the square through hole of installation blocky test specimen 17 and wedge block 16, in inverted " u " character form structure part
The rectangular recess of a upper opening is symmetrically offered on the lateral surface of left and right；Rectangular recess lower part is equipped with installation length adjusting screw 1
Tapped through hole, rectangular recess positioned inside has a right angled triangle sliding block 15 being meshed with wedge block 16, outside rectangular recess
It is fixedly connected with the clamping piece outside plate 2 of covering rectangular recess.
The acute angle refers to that the relative angle between trapezoidal groove and square through hole is 55 °~60 °.
As shown in Fig. 2 (b), the trapezoidal groove carries certain angle (15 °), and bearing shell test specimen 18 is placed wherein, led to
It crosses camlock bolt 10 and trapezoidal groove carries out reliable grip, bearing shell test specimen 18 has certain angle of rotation in trapezoidal groove
Degree, to the test specimen with certain size error, still may be implemented reliable grip.
As shown in figure 3, spherical plain bearing rod end 6 is made of Internal and external cycle spherical in shape, ball pair can rotate within a certain angle or
Make banking motion, the automatic alignment of 18 busbar of bent axle test specimen 8 and bearing shell test specimen may be implemented；It is inside and outside after busbar adaptively contacts
Circle is realized the rigid connection of ball pair by spherical plain bearing rod end holding screw 14.
A kind of clamp method of the diesel engine main bearing shell specimen holder device of busbar automatic alignment of the present invention, it is specific to walk
It is rapid as follows：
(1) bearing shell test specimen 18 is promoted inward from the trapezoidal groove large scale end of clamping piece 11, until radially can not
Mobile, the poke rod stirred on camlock screw 10 locks it.
(2) rectangular recess being provided with by 11 left and right sides of clamping piece, the square through hole is placed in by wedge block 16
In one end, the bevel edge of right angled triangle sliding block 15 is meshed with the bevel edge of wedge block 16 and is placed in rectangular recess, is then adopted
Clamping piece outside plate 2 is fixed on clamping piece 11 with plate bolt outside clamping piece 3.
(3) blocky test specimen 17 is mounted in the other end of the square through hole；By adjustment length adjusting screw 1, adjust
Section right angled triangle sliding block 15 slides up and down in rectangular recess, and wedge block 16 is driven to slide in radial directions, to real
Adjusting of the existing bulk test specimen 17 in radial extension elongation；Then the holding screw 9 of blocky test specimen is tightened, is realized to blocky test specimen
17 locking.
(4) clamping device for installing bearing shell test specimen 18 and blocky test specimen 17 is installed with the cooperation of bent axle test specimen 8, that is, completed
The clamping of test specimen.
The foregoing is intended to be a preferred embodiment of the present invention.Certainly, the present invention can also have other a variety of implementations
Example, without deviating from the spirit and substance of the present invention, any one skilled in the art, when can according to this
Various corresponding equivalent change and distortions are made in invention, should all belong to the protection domain of appended claims of the invention.
Claims (9)
1. a kind of diesel engine main bearing shell specimen holder device of busbar automatic alignment, it is characterised in that：Including the clamping being connected
Part (11) and loading frame (4), the clamping piece (11) is the inverted " u " character form structure part equipped with semicircle arc fluting, recessed in semi arch
The top of cell wall is equipped with the trapezoidal groove of installation bearing shell test specimen (18) in an axial direction, in the left and right semicircle apart from one acute angle of trapezoidal groove
Arc fluting wall upper edge radial symmetric is equipped with the square through hole of the blocky test specimen of installation (17) and wedge block (16), in inverted " u " font
The rectangular recess of a upper opening is symmetrically offered on structural member or so lateral surface, the rectangular recess lower part is equipped with installation length
The tapped through hole of adjusting screw (1) is mounted with the right angled triangle being meshed with wedge block (16) in the rectangular recess and slides
Block (15), the rectangular recess are fixedly connected with the clamping piece outside plate (2) of covering rectangular recess outside；The loading frame (4) is
"U" shaped structural member is symmetrically provided with " u "-shaped groove on loading frame (4) two side, both ends band is equipped in " u "-shaped groove
Reeded axis (5), is set with axle sleeve (13) and spherical plain bearing rod end (6), the rod end on the reeded axis of both ends band (5)
Oscillating bearing (6) is connected with press rods (7).
2. the diesel engine main bearing shell specimen holder device of busbar automatic alignment according to claim 1, it is characterised in that：Institute
State the camlock screw (10) being additionally provided in large scale one end groove of trapezoidal groove for adjusting.
3. the diesel engine main bearing shell specimen holder device of busbar automatic alignment according to claim 2, it is characterised in that：Institute
It states and is additionally provided with poke rod on camlock screw (10).
4. the diesel engine main bearing shell specimen holder device of busbar automatic alignment according to claim 1, it is characterised in that：
The holding screw (9) for tightening blocky test specimen is additionally provided on the one side of the vertical rectangular through-bore axis of the loading frame (4).
5. the diesel engine main bearing shell specimen holder device of busbar automatic alignment according to claim 1, it is characterised in that：Institute
It is 55 °~60 ° that state acute angle, which refer to relative angle between trapezoidal groove and square through hole,.
6. the diesel engine main bearing shell specimen holder device of busbar automatic alignment according to claim 1, it is characterised in that：Institute
The trapezoidal angle for stating trapezoidal groove is 15 °.
7. the diesel engine main bearing shell specimen holder device of busbar automatic alignment according to claim 1, it is characterised in that：Institute
The connection for stating clamping piece (11) and loading frame (4) is connected using loading frame screw (12).
8. the diesel engine main bearing shell specimen holder device of busbar automatic alignment according to claim 1, it is characterised in that：Institute
The spherical plain bearing rod end (6) stated is made of Internal and external cycle spherical in shape, and ball pair can rotate or make banking motion within a certain angle, institute
State the rigid connection that Internal and external cycle realizes ball pair using spherical plain bearing rod end holding screw (14).
9. a kind of diesel engine main bearing shell specimen holder device according to claim 1-8 any one of them busbar automatic alignments
Clamp method, it is characterised in that include the following steps：
(1) bearing shell test specimen (18) is promoted inward from the trapezoidal groove large scale end of clamping piece (11), until radially can not
Mobile, the poke rod stirred on camlock screw (10) locks it；
(2) by the rectangular recess being provided at left and right sides of clamping piece (11), wedge block (16) is placed in the square through hole
In one end, the bevel edge of right angled triangle sliding block (15) is meshed with the bevel edge of wedge block (16) and is placed in rectangular recess, so
Use clamping piece outer plate bolt (3) that clamping piece outside plate (2) is fixed on clamping piece (11) afterwards；
(3) blocky test specimen (17) is mounted in the other end of the square through hole；By adjustment length adjusting screw (1), adjust
Section right angled triangle sliding block (15) slides up and down in rectangular recess, and wedge block (16) is driven to slide in radial directions, from
And realize adjusting of the blocky test specimen (17) in radial extension elongation；Then blocky test specimen holding screw (9) is tightened, is realized to block
The locking of shape test specimen (17)；
(4) clamping device that will install bearing shell test specimen (18) and blocky test specimen (17) is installed with bent axle test specimen (8) cooperation, i.e., complete
At the clamping of test specimen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810563301.3A CN108645703B (en) | 2018-06-04 | 2018-06-04 | A kind of diesel engine main bearing shell specimen holder device and method of bus automatic alignment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810563301.3A CN108645703B (en) | 2018-06-04 | 2018-06-04 | A kind of diesel engine main bearing shell specimen holder device and method of bus automatic alignment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108645703A true CN108645703A (en) | 2018-10-12 |
| CN108645703B CN108645703B (en) | 2019-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810563301.3A Active CN108645703B (en) | 2018-06-04 | 2018-06-04 | A kind of diesel engine main bearing shell specimen holder device and method of bus automatic alignment |
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| CN (1) | CN108645703B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110389A (en) * | 2021-11-30 | 2022-03-01 | 安徽合力股份有限公司 | Fork truck traveles and controls characteristic test device |
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| CN101339113A (en) * | 2008-08-19 | 2009-01-07 | 东南大学 | Machine tool main shaft axle journal shaft bushing friction performance test machine |
| RU2356026C1 (en) * | 2008-01-15 | 2009-05-20 | ООО "ИМАШресурс" | Device to test radial pairs of friction for wear |
| KR20110095664A (en) * | 2010-02-19 | 2011-08-25 | 자동차부품연구원 | Test device for friction characteristic between piston-ring and liner |
| CN102980802A (en) * | 2012-11-16 | 2013-03-20 | 上海交通大学 | Universal self-adaption fixture for sliding friction-wear test |
| US20140361477A1 (en) * | 2012-06-04 | 2014-12-11 | Zhejiang Linix Motor Co., Ltd. | Tool for Clamping Using End Faces of Workpieces |
| CN105352794A (en) * | 2015-12-07 | 2016-02-24 | 中国矿业大学 | Test piece fixture capable of guaranteeing self-adaptive contact of friction surfaces |
| CN205426702U (en) * | 2016-03-16 | 2016-08-03 | 安徽工业大学 | Experimental friction wear testing machine can rotate |
| CN205941194U (en) * | 2016-08-11 | 2017-02-08 | 上海华龙测试仪器股份有限公司 | Wedge tightly prevents changeing centering mechanism from clamp of split collet utensil |
| CN106644795A (en) * | 2016-09-23 | 2017-05-10 | 上海交通大学 | Testing machine for abrasive wear test of bearing bush |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261663A (en) * | 2000-02-24 | 2000-08-02 | 上海交通大学 | Testing method and device for micro bearing friction coefficient |
| RU2356026C1 (en) * | 2008-01-15 | 2009-05-20 | ООО "ИМАШресурс" | Device to test radial pairs of friction for wear |
| CN101339113A (en) * | 2008-08-19 | 2009-01-07 | 东南大学 | Machine tool main shaft axle journal shaft bushing friction performance test machine |
| KR20110095664A (en) * | 2010-02-19 | 2011-08-25 | 자동차부품연구원 | Test device for friction characteristic between piston-ring and liner |
| US20140361477A1 (en) * | 2012-06-04 | 2014-12-11 | Zhejiang Linix Motor Co., Ltd. | Tool for Clamping Using End Faces of Workpieces |
| CN102980802A (en) * | 2012-11-16 | 2013-03-20 | 上海交通大学 | Universal self-adaption fixture for sliding friction-wear test |
| CN105352794A (en) * | 2015-12-07 | 2016-02-24 | 中国矿业大学 | Test piece fixture capable of guaranteeing self-adaptive contact of friction surfaces |
| CN205426702U (en) * | 2016-03-16 | 2016-08-03 | 安徽工业大学 | Experimental friction wear testing machine can rotate |
| CN205941194U (en) * | 2016-08-11 | 2017-02-08 | 上海华龙测试仪器股份有限公司 | Wedge tightly prevents changeing centering mechanism from clamp of split collet utensil |
| CN106644795A (en) * | 2016-09-23 | 2017-05-10 | 上海交通大学 | Testing machine for abrasive wear test of bearing bush |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114110389A (en) * | 2021-11-30 | 2022-03-01 | 安徽合力股份有限公司 | Fork truck traveles and controls characteristic test device |
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| Publication number | Publication date |
|---|---|
| CN108645703B (en) | 2019-09-27 |
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