CN203396353U - General detection tool for piston ring deflection - Google Patents
General detection tool for piston ring deflection Download PDFInfo
- Publication number
- CN203396353U CN203396353U CN201320544390.XU CN201320544390U CN203396353U CN 203396353 U CN203396353 U CN 203396353U CN 201320544390 U CN201320544390 U CN 201320544390U CN 203396353 U CN203396353 U CN 203396353U
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- China
- Prior art keywords
- piston ring
- moving slider
- block
- check tool
- flexibility degree
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Abstract
The utility model discloses a general detection tool for piston ring deflection. The general detection tool includes a pedestal, wherein the central part of a top surface of the pedestal is provided with a convex bench; a fixed block, which is fixed on the pedestal; and a movable sliding block, wherein the shape of a bottom part of the movable sliding block fits with convex bench and the movable sliding block is arranged on the convex bench in a slidable manner. The side surface of the fixed block and the side surface of the movable sliding block which are opposite to each other form measurement reference surfaces, and a piston ring to be detected is arranged between the two measurement reference surfaces. The movable sliding block slides in relative to the fixed block so as to adjusting the distance between the two measurement reference surfaces, thus the general detection tool can be used for piston rings of various specifications, and frequent design of professional detection tools for piston rings in different specifications is avoided. A rail formed by the convex bench keeps the parallelism error of the two measurement reference surfaces less than or equal to 0.01 mm.
Description
Technical field
The utility model relates to field of internal combustion engine, particularly a kind of piston ring flexibility degree universal check tool.
Background technology
As shown in Figure 1, the intended diameter of piston ring 22 is Ф d, and design height is h.Deflection degree is as an important performance indexes of piston ring, and it affects sealing property and the anti-wear performance of piston ring, when piston ring flexibility degree is defective, can cause gas blowby, alter oil, the power of engine is declined, even occur scuffing of cylinder bore, kill, engine cannot be worked.Therefore the accuracy that, piston ring flexibility degree detects is most important.
As shown in Figure 2, piston ring flexibility degree cubing of the prior art is appliance special for detecting 23, by two blocks of parallel-plates, form ，Qi opposite flank and form measurement datum, and the spacing H of two measurement datums, adaptive with a kind of piston ring of size.Therefore,, for the piston ring of different size, need to be equipped with respectively cubing.For the high h of ring and the few piston ring application scenario of intended diameter Ф d specification, the deflection degree cubing ratio that is equipped with all specifications is easier to.But for the more piston ring application scenario of specification, the workload of deflection degree cubing that is equipped with all specifications is larger; And Piston ring design and change cycle are short, so the life cycle of appliance special for detecting is also short, in the piston ring application scenario of many specifications, designs continually and change the workload that cubing has increased designer greatly.
Utility model content
The utility model is in order to overcome defect in above-mentioned prior art, and the cubing by adjustable reference interplanar distance designs, and makes cubing have general utility functions, avoids frequent design and replacing.
For achieving the above object, the utility model provides a kind of piston ring flexibility degree universal check tool, comprising: base, and the middle part of its end face is provided with boss; Fixed block, it is fixed on base; Moving slider, its bottom shape and boss are adaptive and be slidably arranged on boss; The two opposite side surfaces of fixed block and moving slider forms measurement datum, and tested piston ring is arranged between two measurement datums.It is adjustable that moving slider realizes the spacing of two measurement datums with respect to the slip of fixed block, applicable to multiple piston ring specification, avoided the appliance special for detecting of the piston ring of frequent design different size.
In technique scheme, boss is " trapezoidal " shape.Trapezoidal guide rail has guaranteed mobile accuracy, makes the parallelism error≤0.01mm of two measurement datums.
In technique scheme, piston ring flexibility degree universal check tool also comprises regulating device, and regulating device comprises: to table block, it is fixedly installed on base, and table block is provided with to internal thread through hole; Adjust screw rod ，Qi one end by screw thread with the internal thread through hole of table block is rotationally connected, and the other end and the moving slider of adjusting screw rod be rotationally connected, and adjusts screw rod and move with respect to base and fixed block with respect to the rotation drive moving slider to table block.Adjust screw rod and limited it with being slidably connected of moving slider and relatively move, will adjustment screw rod with respect to the rotation of table block is converted into moving slider with respect to the movement of fixed block.
In technique scheme, adjust screw rod and be provided with second segment that diameter reduces successively, the 3rd section and the 4th section; Moving slider is provided with the draw-in groove that rolling bearing is installed, the aperture of rolling bearing and the 4th section of adaptation, the 3rd section of swivel nut of going up the end butt of socket and second segment, the outer ring of rolling bearing and swivel nut butt; The free end of the 4th section is provided with nut.Rolling bearing makes to adjust screw rod and can rotate but limit it with respect to moving slider and relatively move.
In technique scheme, table block is provided with to the circular groove coaxial with internal thread through hole, on second segment, is socketed spring, one end of spring and circular groove butt, the other end and swivel nut butt.The screw thread sideshake that adjustment screw rod is in course of adjustment has been eliminated in arranging of spring.
In technique scheme, moving slider is provided with measuring apparatus, and measuring apparatus comprises: dial indicator holder, and it is fixed on moving slider, and dial indicator holder is provided with the through hole of mounting bush; Dial gauge, its jacket casing is connected in lining, and is fixed on dial indicator holder by the first lock-screw; The measuring head of dial gauge is connected on table block.The spacing of measuring two measurement datums with dial gauge improves the monitoring accuracy of spacing greatly.
In technique scheme, to being fixed with on table block for placing the cushion block of gauge block, cushion block exceeds the end face to table block near one end of dial gauge, and the end face of cushion block is lower than the measuring head of dial gauge.The cubing that is arranged so that of cushion block is applicable to the more piston ring of large scale specification, has improved the applicability of cubing.
In technique scheme, be provided with at least one group of locking screw pit on base, every group comprises at least three locking screw pits, and the rectilinear direction of every group of locking screw hole formation is parallel with the moving direction of moving slider; Moving slider is provided with and every group of corresponding waist through hole of locking screw pit, and the second lock-screw passes waist through hole and is connected with locking screw pit.The cooperation of locking screw pit, waist through hole and the second lock-screw has guaranteed the stability of spacing H in measuring process.
In technique scheme, the bottom of the measurement datum of fixed block is fixed with skewback, and the corresponding site of moving slider is provided with the breach with skewback adaptation, and the end face of skewback is the inclined-plane that is parallel to piston ring Way out.The inclined-plane of skewback is convenient by piston ring taking-up, damages measurement datum while preventing from taking out piston ring with instrument.
In technique scheme, the both sides of base are provided with lock dog, and the both sides of moving slider are provided with the chute coordinating with lock dog.Being engaged in of chute and lock dog guarantees when moving slider can move horizontally to prevent that it from moving up and down.
Accompanying drawing explanation
Fig. 1 is piston ring diagrammatic cross-section;
Fig. 2 is piston ring flexibility degree cubing schematic diagram of the prior art;
Fig. 3 is piston ring flexibility degree universal check tool schematic diagram of the present utility model;
Fig. 4 is piston ring flexibility degree universal check tool front view;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the vertical view of Fig. 4;
Fig. 7 is the A-A view of Fig. 6;
Fig. 8 is the E-E view of Fig. 6;
Fig. 9 is the II enlarged drawing of Fig. 8;
Mark the following drawings mark thereon by reference to the accompanying drawings:
1-handle, 2-suspension ring, 3-fixed block, 4-moving slider, 41-waist through hole, 42-boss, 5-lock dog, 6-base, 61-locking screw pit, 7-is to table block, 8-dial gauge, 9-skewback, 10-dial gauge lining, 11-dial indicator holder, 12-cushion block, 13-packing ring, 14-spring, 15-adjusts screw rod, 151-first paragraph, 152-second segment, the 3rd section of 153-, the 4th section of 154-, 16-swivel nut, 17-rolling bearing, 18-circlip for hole, 19-nut, 20-the first lock-screw, 21-the second lock-screw, 22-piston ring, 23-appliance special for detecting.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subject to the restriction of embodiment.
As shown in Figures 3 to 5, piston ring flexibility degree universal check tool of the present utility model comprises base 6, fixed block 3 and moving slider 4, and fixed block 3 is bolted on base 6.The end face of base 6 is provided with trapezoid boss 42, and the bottom of moving slider 4 is provided with the groove (as shown in Figure 7) with boss 42 adaptations, and moving slider 4 can be moved with respect to base 6.The both sides of moving slider 4 are provided with the chute with lock dog 5 adaptations, for preventing the movement of moving slider 4 on above-below direction.Moving slider 4 forms two measurement datums with the opposite flank of fixed block 3, and moving slider 4 is with respect to the mobile spacing H that forms two measurement datums of base 6.During detection, piston ring 22 falls between two measurement datums in the effect of self gravitation.The bottom of the measurement datum of fixed block 3 is fixed with skewback 9 by screw, and the corresponding site of moving slider 4 is provided with the breach with skewback 9 adaptations, and the end face of skewback 9 has certain slope from inside to outside or from outside to inside, the taking-up of piston ring 22 during convenient detection.
The regulating device that moves through of moving slider 4 regulates, and passes through measuring apparatus metering plant apart from H.
Measuring apparatus comprises dial gauge 8, and spacing H shows by dial gauge 8.As shown in Figure 6, as shown in Fig. 1,6,9, on moving slider 4, by screw, be fixed with dial indicator holder 11, dial indicator holder 11 is provided with the through hole that dial gauge lining 10 is installed, the sounding rod of dial gauge 8 is through dial gauge lining 10, and the jacket casing of dial gauge is connected in dial gauge lining 10, and by the first lock-screw 20, dial gauge is fixed on dial indicator holder 11.As shown in Fig. 3,6, on base 6, by screw, be fixed with table block 7, the measuring head of dial gauge 8 is connected on table block 7.As shown in Figure 9, table block 7 is provided with to horizontal step surface, on step surface, by screw, be provided with cushion block 12, one end of the close dial gauge 8 of cushion block 12 exceeds the end face to table block 7, during for detection of the piston ring 22 of larger height h, place auxiliary gauge block, by the size of gauge block and the pointer of dial gauge, adjust spacing H.
Regulating device comprises adjusts screw rod 15, and screw rod 15 controls are adjusted in moving through of moving slider 4.As shown in Figure 9, adjust screw rod 15 and comprise the first paragraph 151 that diameter reduces successively, 152, the three sections 153 and the 4th sections 154 of second segments.First paragraph 151 is provided with external thread, and the internal thread through hole arranging on table block 7 is threaded, and table block 7 is provided with to the circular groove of the accommodating second segment 152 coaxial with its internal thread, is socketed with spring 14 on second segment 152.Moving slider is provided with draw-in groove, be used for installing rolling bearing 17, rolling bearing 17 aperture and the 4th section of 154 adaptations, between rolling bearing 17 and draw-in groove, be provided with circlip for hole 18, the swivel nut 16 being arranged on the 3rd section 153 coordinates spring 14 end that rolling bearing 17 outer ring is fixed on moving slider 4.Packing ring 13 and two nuts 19 are arranged on the free end of the 4th section 154, and making to adjust screw rod 15 can rotate with respect to moving slider 4.
As shown in Figure 6, on moving slider 4, the both sides of dial gauge 8 and left side are respectively equipped with waist through hole 41.As shown in Figure 8, the end face of base 6 is provided with and the corresponding three groups of locking screw pits 61 of waist through hole 41, every group comprises at least three locking screw pits, and the second lock-screw 21 passes waist through hole 41 and is threaded with locking screw pit 61, for preventing that moving slider 4 from moving under elastic force.Can adopt as required one group or two groups of locking screw pits.
For convenience of carrying and handling, the two ends of base 6 are respectively equipped with frame handle 1, and the end face of handle 1 is provided with suspension ring 2.As shown in Fig. 1,8, adjust screw rod 15 through handle 1.
Spacing H is determined by design height h and its design deflection degree of the piston ring that will detect:
A, for rectangle cross-section ring:
The design deflection degree of the maximum limit of size+piston ring of H=(Piston ring design height) ± 0.002(d≤100).
The design deflection degree of the maximum limit of size+piston ring of H=(Piston ring design height) ± 0.005(101≤d≤350).
B, for non-rectangular cross-section ring: first with measurer, measure the material object actual measurement thickness h 1 of piston ring, then add that it is H=h1+h2 that deflection degree requires h2(), H is deflection degree cubing two reference field spacings.
The detection method of piston ring flexibility degree universal check tool of the present utility model is as follows:
1) calculate according to the method described above the spacing H of the measurement datum of fixed block 3 and moving slider 4;
2) piston ring flexibility degree universal check tool is placed on measuring table, unclamps the second lock-screw 21 of cubing, by fixed block 3 and moving slider clean cotton wiped clean for 4 liang of reference fields;
3) adjust spacing H: with adjusting screw rod 15, moving slider 4 is screwed to extreme position, two measurement datums fit tightly, dial gauge 8 position of making zero, now moving slider 4 is only subject to default spring force, and adjustment screw rod 15 does not stress in free state.Adjustment screw rod 15 is back-outed outward again, driven moving slider 4 to move, from dial gauge 8, read the spacing X of two measurement datums, when X=H, while back-outing outward with the second lock-screw 21 locking moving slider 4(adjustment screw rods 15, rotation direction can not change; Otherwise, after reference field is fitted again, readjust again H value);
4) will clean dry piston ring 22 under the effect of own wt, from free-falling between two measurement datums of cubing, (opening of piston ring is horizontal, piston ring can fall into completely between two measurement datums and be as the criterion with it with respect to the height of cubing), record testing result;
5) by skewback 9, piston ring 22 is taken out between two measurement datums;
6) by adjusting screw rod 15, make two measurement datums again fit (now dial gauge is answered back to zero position, if zero variation needs zero setting again, again measures after readjusting spacing H).
The utility model is by realizing the adjustability of spacing H, make cubing be applicable to the piston ring of plurality of specifications, the frequent design of having avoided deviser to bring because of the replacing of plurality of specifications piston ring.The trapezoid boss arranging on base forms guide rail, make the parallelism error≤0.01mm of two measurement datums, and under the accurate measurement of dial gauge, pass through to adjust the spacing H that screw rod is adjusted two measurement datums, improved the precision of examination criteria, improved detection quality; Spring has been eliminated and has been adjusted the screw thread sideshake that screw rod is in course of adjustment.
Disclosed is above only a specific embodiment of the present utility model, and still, the utility model is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (10)
1. a piston ring flexibility degree universal check tool, is characterized in that, comprising:
Base, the middle part of its end face is provided with boss;
Fixed block, it is fixed on described base;
Moving slider, its bottom shape and described boss are adaptive and be slidably arranged on described boss;
The two opposite side surfaces of described fixed block and described moving slider forms measurement datum, and tested piston ring is arranged between two described measurement datums.
2. piston ring flexibility degree universal check tool according to claim 1, is characterized in that, described boss is " trapezoidal " shape.
3. piston ring flexibility degree universal check tool according to claim 1 and 2, is characterized in that, described piston ring flexibility degree universal check tool also comprises regulating device, and described regulating device comprises:
To table block, it is fixedly installed on described base, and described table block is provided with to internal thread through hole;
Adjust screw rod, its one end is rotationally connected by screw thread and described internal thread through hole to table block, and the other end of described adjustment screw rod and described moving slider are rotationally connected, described adjustment screw rod drives described moving slider to move with respect to described base and described fixed block with respect to the described rotation to table block.
4. piston ring flexibility degree universal check tool according to claim 3, is characterized in that, described adjustment screw rod is provided with second segment that diameter reduces successively, the 3rd section and the 4th section; Described moving slider is provided with the draw-in groove that rolling bearing is installed, the aperture of described rolling bearing and described the 4th section of adaptation, the swivel nut of the end butt of described the 3rd section of upper socket and described second segment, the outer ring of described rolling bearing and described swivel nut butt; The free end of described the 4th section is provided with nut.
5. piston ring flexibility degree universal check tool according to claim 4, it is characterized in that, described table block is provided with to the circular groove coaxial with described internal thread through hole, on described second segment, be socketed spring, one end of described spring and described circular groove butt, the other end and described swivel nut butt.
6. according to the piston ring flexibility degree universal check tool described in claim 4 or 5, it is characterized in that, described moving slider is provided with measuring apparatus, and described measuring apparatus comprises:
Dial indicator holder, it is fixed on described moving slider, and described dial indicator holder is provided with the through hole of mounting bush;
Dial gauge, its jacket casing is connected in described lining, and is fixed on described dial indicator holder by the first lock-screw; The measuring head of described dial gauge is connected to described on table block.
7. piston ring flexibility degree universal check tool according to claim 6, it is characterized in that, described to being fixed with on table block for placing the cushion block of gauge block, described cushion block exceeds the described end face to table block near one end of described dial gauge, and the end face of described cushion block is lower than the measuring head of described dial gauge.
8. piston ring flexibility degree universal check tool according to claim 3, it is characterized in that, on described base, be provided with at least one group of locking screw pit, every group comprises at least three locking screw pits, and the rectilinear direction that described in every group, locking screw hole forms is parallel with the moving direction of described moving slider; Described moving slider is provided with and the corresponding waist through hole of locking screw pit described in every group, and the second lock-screw passes described waist through hole and is connected with described locking screw pit.
9. piston ring flexibility degree universal check tool according to claim 1, it is characterized in that, the bottom of the measurement datum of described fixed block is fixed with skewback, the corresponding site of described moving slider is provided with the breach with described skewback adaptation, and the end face of described skewback is the inclined-plane that is parallel to described piston ring Way out.
10. piston ring flexibility degree universal check tool according to claim 1, is characterized in that, the both sides of described base are provided with lock dog, and the both sides of described moving slider are provided with the chute coordinating with described lock dog.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320544390.XU CN203396353U (en) | 2013-08-30 | 2013-08-30 | General detection tool for piston ring deflection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320544390.XU CN203396353U (en) | 2013-08-30 | 2013-08-30 | General detection tool for piston ring deflection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203396353U true CN203396353U (en) | 2014-01-15 |
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ID=49907877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320544390.XU Withdrawn - After Issue CN203396353U (en) | 2013-08-30 | 2013-08-30 | General detection tool for piston ring deflection |
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| Country | Link |
|---|---|
| CN (1) | CN203396353U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486953A (en) * | 2013-08-30 | 2014-01-01 | 广西玉柴机器股份有限公司 | Piston ring deflection general gauge |
| CN104316020A (en) * | 2014-06-15 | 2015-01-28 | 安庆帝伯格茨活塞环有限公司 | Full-automatic piston ring warpage inspection machine |
-
2013
- 2013-08-30 CN CN201320544390.XU patent/CN203396353U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486953A (en) * | 2013-08-30 | 2014-01-01 | 广西玉柴机器股份有限公司 | Piston ring deflection general gauge |
| CN103486953B (en) * | 2013-08-30 | 2016-02-24 | 广西玉柴机器股份有限公司 | A kind of piston ring flexibility degree universal check tool |
| CN104316020A (en) * | 2014-06-15 | 2015-01-28 | 安庆帝伯格茨活塞环有限公司 | Full-automatic piston ring warpage inspection machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140115 Effective date of abandoning: 20160224 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |