CN104457524A - Detection device and method for bending resistance and torsion resistance of crankshaft connecting rod assembly - Google Patents
Detection device and method for bending resistance and torsion resistance of crankshaft connecting rod assembly Download PDFInfo
- Publication number
- CN104457524A CN104457524A CN201410778333.7A CN201410778333A CN104457524A CN 104457524 A CN104457524 A CN 104457524A CN 201410778333 A CN201410778333 A CN 201410778333A CN 104457524 A CN104457524 A CN 104457524A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- measurement point
- rod assembly
- crankshaft
- crank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a detection device for bending resistance and torsion resistance of a crankshaft connecting rod assembly. The detection device comprises a detector bracket (6) and a length measurer. The detection device further comprises a central spindle (7) and a support (8), wherein the central spindle (7) is used for being relatively fixed to a small end hole of a connecting rod (2) of the crankshaft connecting rod assembly, and the support (8) is used for supporting the connecting rod (2) so that the connecting line of two holes of the connecting rod (2) can keep level. The detector bracket (6) is provided with two supporting arms, and the supporting arms are used for supporting the two ends of the central spindle (7) and enabling the crankshaft connecting rod assembly to hang down naturally. According to the detection device, the overall bending resistance and torsion resistance of the crankshaft connecting rod assembly are detected through the manner of detecting the height difference between a left crankshaft (1) and a right crankshaft (5) in a natural state, so that the purpose of detecting the overall accuracy of the crankshaft connecting rod assembly is achieved, and the overall crankshaft connecting rod assembly can meet the work requirement. The invention further discloses a detection method adapting to the detection device.
Description
Technical field
The present invention relates to detection field, particularly relate to the pick-up unit of a kind of crankshaft rod assembly flexibility and torsion resistance.In addition, the invention still further relates to a kind of method using above-mentioned detection device to detect crankshaft rod assembly flexibility and torsion resistance.
Background technology
In the course of work of engine, connecting rod is connected to bent axle and piston, and piston is to-and-fro movement in cylinder, and by crankshaft rod assembly by transform linear motion circular motion.But, when the connecting rod in crankshaft rod assembly bend and/or distortion time, the axle center of reciprocating motion of the pistons will be departed from, and then affects the proper motion of piston and aggravate the wearing and tearing of cylinder, causes engine conk.
In order to avoid the generation of above-mentioned situation, in the prior art, the mode with distortion that bends of correction coupler before being typically employed in assembling, ensures that crankshaft rod assembly and connected piston can normally work.But aforesaid way just carries out the detection of flexibility and torsion resistance to connecting rod, because detection mode is more complicated, and do not have effective detection means, the detection therefore for crankshaft rod assembly entirety cannot realize.After the crankshaft rod assembly do not crossed by whole detection is installed to engine, can not ensures that it normally works, still there will be the problem of reciprocating motion of the pistons axis deviation, and then cause engine conk.
Therefore, how to detect flexibility and the torsion resistance of crankshaft rod assembly, make its entirety meet job requirement, ensure that the normal operation of engine is the current technical issues that need to address of those skilled in the art.
Summary of the invention
The object of this invention is to provide the pick-up unit of a kind of crankshaft rod assembly flexibility and torsion resistance, flexibility and the torsion resistance of crankshaft rod assembly entirety can be detected, make its entirety meet job requirement, ensure the normal operation of engine.Another object of the present invention is to provide the detection method of a kind of crankshaft rod assembly flexibility and torsion resistance, can detect flexibility and the torsion resistance of crankshaft rod assembly entirety, makes its entirety meet job requirement, ensures the normal operation of engine.
For solving the problems of the technologies described above, the invention provides the pick-up unit of a kind of crankshaft rod assembly flexibility and torsion resistance, comprise detector support and be fixed on described detector support and for the length measuring instrument of measuring height difference, described pick-up unit also comprises for the relatively-stationary mandrel of the wrist-pin hole of described crankshaft rod assembly with for supporting described connecting rod and making the supporter of the holes line maintenance level of described connecting rod, described detector support has two for supporting described mandrel two ends and making described mandrel horizontal positioned and make the sway brace that described crankshaft rod assembly naturally droops.
Preferably, the identical At The Height of two described sway braces is provided with thimble simultaneously, and two described thimbles are coaxially arranged and the conical head of two described thimbles is relative, and the two ends of described mandrel are provided with coaxial hole, and described hole is connected with the described conical head of homonymy.
Preferably, described mandrel is specially the circular shaft with tapering, and described circular shaft comprises the two ends for allowing described wrist-pin hole to pass through and the middle part for hindering described wrist-pin hole to pass through.
Preferably, described pick-up unit also comprises clearance gauge for detecting described connecting rod and crank junction two side clearance and for being set in the equivalent ring on crank.
The present invention also provides the detection method of a kind of crankshaft rod assembly flexibility and torsion resistance, comprises step:
Promote the wrist-pin hole of described crankshaft rod assembly, described crankshaft rod assembly is naturally drooped, and keep the holes line of described connecting rod perpendicular to surface level;
Left crank is got the first measurement point, right crank is got the second measurement point, described in the Distance geometry of described first measurement point and described connecting rod holes line, the distance of the second measurement point and described connecting rod holes line is identical, described first measurement point is positioned at described left crank and gets a peak for the circular section at place, and described second measurement point is positioned at described right crank and gets a peak for the circular section at place;
Length measuring instrument is used to detect the difference in height of described first measurement point and described second measurement point, as the flexibility of described crankshaft rod assembly;
Promote described connecting rod, make described connecting rod holes line maintenance level, and the described left crank of described crankshaft rod assembly and described right crank are naturally drooped;
Described left crank is got the 3rd measurement point, described right crank is got the 4th measurement point, described in the Distance geometry of described 3rd measurement point and described connecting rod holes line, the distance of the 4th measurement point and described connecting rod holes line is identical, described 3rd measurement point is positioned at described left crank and gets a peak for the circular section at place, and described 4th measurement point is positioned at described right crank and gets a peak for the circular section at place;
Described length measuring instrument is used to detect the difference in height of described 3rd measurement point and described 4th measurement point, as the torsion resistance of described crankshaft rod assembly.
Preferably, the wrist-pin hole of the described crankshaft rod assembly of described lifting is specially the wrist-pin hole that mandrel penetrated described crankshaft rod assembly and makes described wrist-pin hole relative with described mandrel fixing;
The mandrel level being connected with described crankshaft rod assembly is installed on the sway brace of detector support, described crankshaft rod assembly is naturally drooped.
Preferably, the described connecting rod of described lifting is specially and uses connecting rod described in support body supports, makes described connecting rod holes line maintenance level, and the described left crank of described crankshaft rod assembly and described right crank are naturally drooped.
Preferably, the difference in height of described use length measuring instrument described first measurement point of detection and described second measurement point specifically comprises:
Dial gauge is pressed in described first measurement point, obtain the first measured value, keep described dial gauge level height constant, described dial gauge is pressed in described second measurement point, obtain the second measured value, the absolute value of the difference of described first measured value and described second measured value is the flexibility of described crankshaft rod assembly;
The difference in height that the described length measuring instrument of described use detects described 3rd measurement point and described 4th measurement point specifically comprises:
Described dial gauge is pressed in described 3rd measurement point, obtain the 3rd measured value, keep described dial gauge level height constant, described dial gauge is pressed in described 4th measurement point, obtain the 4th measured value, the absolute value of the difference of described 3rd measured value and described 4th measured value is the torsion resistance of described crankshaft rod assembly.
Preferably, the wrist-pin hole of the described crankshaft rod assembly of described lifting, described crankshaft rod assembly is naturally drooped, and keep the holes line of described connecting rod to detect described connecting rod and crank junction two side clearance perpendicular to also comprising after surface level respectively with clearance gauge, make gap described in both sides impartial;
The described connecting rod of described lifting, make described connecting rod holes line maintenance level, and make the described left crank of described crankshaft rod assembly and described right crank naturally droop after also comprise and detect described connecting rod and described crank junction two side clearance respectively with described clearance gauge, make gap described in both sides impartial.
Preferably, the difference in height that the described length measuring instrument of described use detects described first measurement point and described second measurement point specifically comprise measure before on the crank at the measurement point place by survey, be set with equivalent ring, described equivalent ring is taken off after measurement, the crank of opposite side is set with described equivalent ring, then carries out the measurement of opposite side;
The difference in height that the described length measuring instrument of described use detects described 3rd measurement point and described 4th measurement point specifically comprise measure before on the crank at the measurement point place by survey, be set with equivalent ring, described equivalent ring is taken off after measurement, the crank of opposite side is set with described equivalent ring, then carries out the measurement of opposite side.
Pick-up unit provided by the invention is by detecting the mode of left crank and right crank difference in height in its natural state, detect flexibility and the torsion resistance of crankshaft rod assembly entirety, thus reach the object of its overall precision of inspection, crankshaft rod assembly entirety is made to meet job requirement, prevent connected piston axis deviation during to-and-fro movement in cylinder, and then ensure that engine normally runs.
Detection method provided by the invention, corresponding with above-mentioned detection device, be the detection method realized by pick-up unit provided by the invention, because above-mentioned detection device has above-mentioned technique effect, above-mentioned detection method also should have same technique effect, introduces no longer in detail at this.
Accompanying drawing explanation
Fig. 1 is the schematic front view of a kind of embodiment that crankshaft rod assembly flexibility provided by the present invention and torsion resistance pick-up unit flexibility detect;
Fig. 2 is the schematic front view of a kind of embodiment that crankshaft rod assembly flexibility provided by the present invention and torsion resistance pick-up unit torsion resistance detect;
Fig. 3 is the schematic side view of a kind of embodiment that crankshaft rod assembly flexibility provided by the present invention and torsion resistance pick-up unit torsion resistance detect.
Embodiment
Core of the present invention is to provide the pick-up unit of a kind of crankshaft rod assembly flexibility and torsion resistance, can detect flexibility and the torsion resistance of crankshaft rod assembly entirety, makes its entirety meet job requirement, ensures the normal operation of engine.Another core of the present invention is to provide the detection method of a kind of crankshaft rod assembly flexibility and torsion resistance, can detect flexibility and the torsion resistance of crankshaft rod assembly entirety, makes its entirety meet job requirement, ensures the normal operation of engine.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1 to Fig. 3, Fig. 1 is the schematic front view of a kind of embodiment that crankshaft rod assembly flexibility provided by the present invention and torsion resistance pick-up unit flexibility detect; Fig. 2 is the schematic front view of a kind of embodiment that crankshaft rod assembly flexibility provided by the present invention and torsion resistance pick-up unit torsion resistance detect; Fig. 3 is the schematic side view of a kind of embodiment that crankshaft rod assembly flexibility provided by the present invention and torsion resistance pick-up unit torsion resistance detect.
The crankshaft rod assembly flexibility that the specific embodiment of the invention provides and the crankshaft rod assembly that torsion resistance pick-up unit detects comprise left crank 1, right crank 5 and connecting rod 2.Connecting rod 2 is connected with crank pin 4 by needle bearing 3, and left crank 1 is with the symmetrical pressing of right crank 5 and be connected with crank pin 4, achieves the connection of connecting rod 2 and crank.The pick-up unit that the specific embodiment of the invention provides comprises detector support 6, mandrel 7 and supporter 8.Wherein detector support 6 has two sway braces, and two sway braces are used for support mandrel 7 and make mandrel 7 horizontal positioned.During detection, connecting rod 2 small end borehole jack is loaded on mandrel 7 and fixing, the mandrel 7 placed by two sway brace support levels, now connecting rod 2 holes line perpendicular to surface level and crankshaft rod assembly naturally droop.To measure on left crank 1 and right crank 5 with connecting rod 2 holes line apart from the identical and absolute value of the difference in height of the first measurement point A of positional symmetry and the second measurement point B flexibility as crankshaft rod assembly by using length measuring instrument.Supporter 8 support link 2 is used when measuring torsion resistance.Make connecting rod 2 holes line level, and two cranks are naturally drooped.To measure on left crank 1 and right crank 5 with connecting rod 2 holes line apart from the identical and absolute value of the difference in height of the 3rd measurement point C of positional symmetry and the 4th measurement point D torsion resistance as crankshaft rod assembly by using length measuring instrument.The position of measurement point calculates according to different crankshaft rod assemblies, wherein the first measurement point A and the 3rd measurement point C can be that identical point also can for different points, similarly, the second measurement point B and the 4th measurement point D can be that identical point also can for different points.
The pick-up unit that the specific embodiment of the invention provides is by detecting the mode of left crank 1 and right crank 5 difference in height in its natural state, detect flexibility and the torsion resistance of crankshaft rod assembly entirety, thus reach the object of its overall precision of inspection, crankshaft rod assembly entirety is made to meet job requirement, prevent connected piston axis deviation during to-and-fro movement in cylinder, and then ensure that engine normally runs.
Use the pick-up unit that the specific embodiment of the invention provides, according to the different situations of detected crankshaft rod assembly, different flexibility and torsion resistance claimed range can be set, particularly, can require that Integral bending curvature is not more than 0.08, torsion resistance is not more than 0.18.Also different claimed ranges can be set according to actual conditions, as long as can ensure that engine normally runs, all within protection scope of the present invention.
In the pick-up unit that the specific embodiment of the invention provides; acting as of supporter 8 makes connecting rod 2 holes line maintenance level; therefore the height of supporter 8 changes according to the difference of detected crankshaft rod assembly; as long as ensure that supporting back link 2 holes line keeps level, all within protection scope of the present invention.
In above-mentioned embodiment, dial gauge can be used as length measuring instrument, also can select clock gauge according to the requirement of precision, as long as can Measurement accuracy difference in height, all within protection scope of the present invention.
In the pick-up unit that the specific embodiment of the invention provides, mandrel 7 is supported by two sway braces, can have multiple supporting way.Can obtain thus, arrange thimble at the identical At The Height of sway brace, the position that two sway braces arrange thimble is identical, and two thimbles are coaxial and conical head is relative.And coaxial hole is set at the two ends of mandrel 7, in hole during installation, the conical head of thimble being placed into mandrel 7, clamping can ensure highly to fix, and mandrel 7 can rotate relative to thimble, ensure that the crankshaft rod assembly be connected with mandrel 7 can naturally droop.
Support mandrel 7, convenient and easy by the way, both ensured that mandrel 7 position is fixed, can ensure that again crankshaft rod assembly naturally droops.Also other mode support mandrel 7 can be adopted, as arranged the surface of contact placing mandrel 7 on sway brace, as long as can correctly place mandrel 7, all within protection scope of the present invention.
In the pick-up unit that the specific embodiment of the invention provides, mandrel 7 needs to fix with the little stomidium of connecting rod 2.Thus, mandrel 7 can be specially the circular shaft with tapering that mid diameter is greater than two ends diameter, and during installation, the little stomidium of connecting rod 2 is inserted in from one end of mandrel 7, until both no longer produce displacement.In this way, ensureing that the little stomidium of connecting rod 2 is relative with mandrel 7 fixing, also can adopt other modes, as arranged screw thread on mandrel 7, after the little stomidium of suit connecting rod 2, using nut to make both relatively fixing, also within protection scope of the present invention.
The testing result of the pick-up unit provided to make the specific embodiment of the invention is more accurate, and pick-up unit also comprises clearance gauge and equivalent ring.After crankshaft rod assembly is arranged at correct position, need the gap of the both sides, junction being detected connecting rod 2 and crank by clearance gauge, and make two gaps, place impartial by adjustment.And when measuring each measurement point, the crank at measurement point place is set with equivalent ring, and the measurement that equivalent ring carries out opposite side is again taken off in side measurement after completing.The gap of needle bearing is eliminated by the weight of equivalent ring.The weight of equivalent ring calculates according to two crank weight difference and obtains.Make measurement result more accurate by using clearance gauge and equivalent ring.Clearance gauge and equivalent ring also can not be set, or only arrange wherein a kind of, as long as can ensure that measurement result is in the error range allowed, all within protection scope of the present invention.
The specific embodiment of the present invention additionally provides the detection method adapted with above-mentioned detection device, comprises step:
Promote the little stomidium of connecting rod 2 of crankshaft rod assembly, crankshaft rod assembly is naturally drooped, and keeps the holes line of connecting rod 2 perpendicular to surface level;
Left crank 1 is got the first measurement point A, right crank 5 is got the second measurement point B, first measurement point A is identical with the distance of connecting rod 2 holes line with the Distance geometry second measurement point B of connecting rod 2 holes line, first measurement point A is positioned at left crank 1 and gets a peak for the circular section at place, and the second measurement point B is positioned at right crank 5 and gets a peak for the circular section at place;
Length measuring instrument is used to detect the difference in height of the first measurement point A and the second measurement point B, as the flexibility of crankshaft rod assembly;
Promote connecting rod 2, make connecting rod 2 holes line maintenance level, and the left crank 1 of crankshaft rod assembly and right crank 5 are naturally drooped;
Left crank 1 is got the 3rd measurement point C, right crank 5 is got the 4th measurement point D, 3rd measurement point C is identical with the distance of connecting rod 2 holes line with Distance geometry the 4th measurement point D of connecting rod 2 holes line, 3rd measurement point C is positioned at left crank 1 and gets a peak for the circular section at place, and the 4th measurement point D is positioned at right crank 5 and gets a peak for the circular section at place;
Length measuring instrument is used to detect the difference in height of the 3rd measurement point C and the 4th measurement point D, as the torsion resistance of crankshaft rod assembly.
The position of measurement point calculates according to different crankshaft rod assemblies, wherein the first measurement point A and the 3rd measurement point C can be that identical point also can for different points, similarly, the second measurement point B and the 4th measurement point D can be that identical point also can for different points.
The detection method that the specific embodiment of the invention provides is by detecting the mode of left crank 1 and right crank 5 difference in height in its natural state, detect flexibility and the torsion resistance of crankshaft rod assembly entirety, thus reach the object of its overall precision of inspection, crankshaft rod assembly entirety is made to meet job requirement, prevent connected piston axis deviation during to-and-fro movement in cylinder, and then ensure that engine normally runs.
In above-mentioned detection method, the order detecting flexibility and detection torsion resistance is not fixed, and first detects flexibility or first detects torsion resistance all within protection scope of the present invention.
In the detection method that the specific embodiment of the invention provides, need before detecting flexibility to promote the little stomidium of connecting rod 2, therefore, this step can specifically comprise:
Mandrel 7 penetrated the little stomidium of connecting rod 2 and make the little stomidium of connecting rod 2 relative with mandrel 7 fixing;
Mandrel 7 level connecting crankshaft rod assembly is installed on the sway brace of detector support 6, crankshaft rod assembly is naturally drooped.
By the way, convenient and easy, both ensured monolithic stability, and can ensure that again crankshaft rod assembly naturally drooped.Also other modes can be adopted to promote the little stomidium of connecting rod 2, promote, all within protection scope of the present invention as used cable.
Similarly, need before detecting torsion resistance to promote connecting rod 2, therefore, this step can specifically comprise:
Use supporter 8 support link 2, make connecting rod 2 holes line maintenance level, and left crank 1 and right crank 5 are naturally drooped.Wherein the height of supporter 8 is determined according to actual conditions, needs to ensure that supporting back link 2 holes line keeps level.
By the way, convenient and easy, both ensured monolithic stability, and can ensure that again crankshaft rod assembly naturally drooped.Also other modes can be adopted to promote connecting rod 2, promote, all within protection scope of the present invention as used cable.
In the detection method that the specific embodiment of the invention provides, be measure flexibility and torsion resistance by detecting the mode of difference in height, can obtain thus, concrete detection method comprises:
Dial gauge is pressed in the first measurement point A place, obtain the first measured value, keep dial gauge level height constant, dial gauge is pressed in the second measurement point B place, obtain the second measured value, the absolute value of the difference of the first measured value and the second measured value is the flexibility of crankshaft rod assembly;
Dial gauge is pressed in the 3rd measurement point C place, obtain the 3rd measured value, keep dial gauge level height constant, dial gauge is pressed in the 4th measurement point D place, obtain the 4th measured value, the absolute value of the difference of the 3rd measured value and the 4th measured value is the torsion resistance of crankshaft rod assembly.
By using dial gauge to measure the measured value of 2 respectively, then asking the mode of absolute value of difference, relatively accurate data can be obtained, also can adopting other modes, as measured 2 height, then asking poor mode, all within protection scope of the present invention.
In order to make the result of detection more accurate, error concealment operation can be carried out before fixed point, being specially and detecting institute's bar 2 and crank junction two side clearance respectively with clearance gauge, make two side clearances impartial.Make the distance of both sides as far as possible identical, ensure that fixed point accurately, and then make measurement result more accurate.Also this operation can not be performed, as long as make the error of measurement result in allowed band, all within protection scope of the present invention.
Similarly, in order to eliminate error, on the crank at the measurement point place by survey, being set with equivalent ring before measuring, taking off equivalent ring after measurement, the crank of opposite side is set with equivalent ring, then carry out the measurement of opposite side.Eliminated the gap of needle bearing by the weight of equivalent ring, the weight of equivalent ring calculates according to two crank weight difference and obtains.Also this operation can not be performed, as long as make the error of measurement result in allowed band, all within protection scope of the present invention.
Above the pick-up unit of crankshaft rod assembly flexibility provided by the present invention and torsion resistance and method are described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (10)
1. the pick-up unit of a crankshaft rod assembly flexibility and torsion resistance, comprise detector support (6) and be fixed on described detector support (6) and for the length measuring instrument of measuring height difference, it is characterized in that, described pick-up unit also comprises for the relatively-stationary mandrel of connecting rod (2) the little stomidium (7) with described crankshaft rod assembly with for supporting described connecting rod (2) and making the holes line of described connecting rod (2) keep the supporter (8) of level, described detector support (6) has two for supporting described mandrel (7) two ends and making described mandrel (7) horizontal positioned and make the sway brace that described crankshaft rod assembly naturally droops.
2. pick-up unit according to claim 1, it is characterized in that, the identical At The Height of two described sway braces is provided with thimble simultaneously, two described thimbles are coaxially arranged and the conical head of two described thimbles is relative, the two ends of described mandrel (7) are provided with coaxial hole, and described hole is connected with the described conical head of homonymy.
3. pick-up unit according to claim 2, it is characterized in that, described mandrel (7) is specially the circular shaft with tapering, and described circular shaft comprises the two ends for allowing described connecting rod (2) little stomidium to pass through and the middle part for hindering described connecting rod (2) little stomidium to pass through.
4. pick-up unit according to claim 1, is characterized in that, described pick-up unit also comprises for detecting described connecting rod (2) with the clearance gauge of crank junction two side clearance with for being set in the equivalent ring on crank.
5. a detection method for crankshaft rod assembly flexibility and torsion resistance, is characterized in that, comprises step:
Promote connecting rod (2) the little stomidium of described crankshaft rod assembly, described crankshaft rod assembly is naturally drooped, and keep the holes line of described connecting rod (2) perpendicular to surface level;
Left crank (1) is got the first measurement point (A), right crank (5) is got the second measurement point (B), described in the Distance geometry of described first measurement point (A) and described connecting rod (2) holes line, the second measurement point (B) is identical with the distance of described connecting rod (2) holes line, described first measurement point (A) is positioned at described left crank (1) and gets a peak for the circular section at place, and described second measurement point (B) is positioned at described right crank (5) and gets a peak for the circular section at place;
Length measuring instrument is used to detect the difference in height of described first measurement point (A) and described second measurement point (B), as the flexibility of described crankshaft rod assembly;
Promote described connecting rod (2), make described connecting rod (2) holes line keep level, and the described left crank (1) of described crankshaft rod assembly and described right crank (5) are naturally drooped;
Described left crank (1) is got the 3rd measurement point (C), described right crank (5) is got the 4th measurement point (D), described in the Distance geometry of described 3rd measurement point (C) and described connecting rod (2) holes line, the 4th measurement point (D) is identical with the distance of described connecting rod (2) holes line, described 3rd measurement point (C) is positioned at described left crank (1) and gets a peak for the circular section at place, and described 4th measurement point (D) is positioned at described right crank (5) and gets a peak for the circular section at place;
Described length measuring instrument is used to detect the difference in height of described 3rd measurement point (C) and described 4th measurement point (D), as the torsion resistance of described crankshaft rod assembly.
6. detection method according to claim 5, it is characterized in that, connecting rod (2) the little stomidium of the described crankshaft rod assembly of described lifting is specially connecting rod (2) the little stomidium that mandrel (7) penetrated described crankshaft rod assembly and makes described connecting rod (2) little stomidium relative fixing with described mandrel (7);
Mandrel (7) level being connected with described crankshaft rod assembly is installed on the sway brace of detector support (6), described crankshaft rod assembly is naturally drooped.
7. detection method according to claim 6, it is characterized in that, the described connecting rod of described lifting (2) is specially and uses supporter (8) to support described connecting rod (2), make described connecting rod (2) holes line keep level, and the described left crank (1) of described crankshaft rod assembly and described right crank (5) are naturally drooped.
8. detection method according to claim 5, is characterized in that, the difference in height that described use length measuring instrument detects described first measurement point (A) and described second measurement point (B) specifically comprises:
Dial gauge is pressed in described first measurement point (A) place, obtain the first measured value, keep described dial gauge level height constant, described dial gauge is pressed in described second measurement point (B) place, obtain the second measured value, the absolute value of the difference of described first measured value and described second measured value is the flexibility of described crankshaft rod assembly;
The difference in height that the described length measuring instrument of described use detects described 3rd measurement point (C) and described 4th measurement point (D) specifically comprises:
Described dial gauge is pressed in described 3rd measurement point (C) place, obtain the 3rd measured value, keep described dial gauge level height constant, described dial gauge is pressed in described 4th measurement point (D) place, obtain the 4th measured value, the absolute value of the difference of described 3rd measured value and described 4th measured value is the torsion resistance of described crankshaft rod assembly.
9. detection method according to claim 5, it is characterized in that, connecting rod (2) the little stomidium of the described crankshaft rod assembly of described lifting, described crankshaft rod assembly is naturally drooped, and keep the holes line of described connecting rod (2) to detect described connecting rod (2) and crank junction two side clearance perpendicular to also comprising after surface level respectively with clearance gauge, make gap described in both sides impartial;
The described connecting rod of described lifting (2), described connecting rod (2) holes line is made to keep level, and make the described left crank (1) of described crankshaft rod assembly and described right crank (5) naturally droop after also comprise and detect described connecting rod (2) and described crank junction two side clearance respectively with described clearance gauge, make gap described in both sides impartial.
10. detection method according to claim 8, it is characterized in that, on the crank at the measurement point place by survey, equivalent ring is set with before the difference in height that the described length measuring instrument of described use detects described first measurement point (A) and described second measurement point (B) specifically comprises measurement, described equivalent ring is taken off after measurement, the crank of opposite side is set with described equivalent ring, then carries out the measurement of opposite side;
On the crank at the measurement point place by survey, equivalent ring is set with before the difference in height that the described length measuring instrument of described use detects described 3rd measurement point (C) and described 4th measurement point (D) specifically comprises measurement, described equivalent ring is taken off after measurement, the crank of opposite side is set with described equivalent ring, then carries out the measurement of opposite side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410778333.7A CN104457524A (en) | 2014-12-15 | 2014-12-15 | Detection device and method for bending resistance and torsion resistance of crankshaft connecting rod assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410778333.7A CN104457524A (en) | 2014-12-15 | 2014-12-15 | Detection device and method for bending resistance and torsion resistance of crankshaft connecting rod assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104457524A true CN104457524A (en) | 2015-03-25 |
Family
ID=52903967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410778333.7A Pending CN104457524A (en) | 2014-12-15 | 2014-12-15 | Detection device and method for bending resistance and torsion resistance of crankshaft connecting rod assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104457524A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990805A (en) * | 2017-11-24 | 2018-05-04 | 常州中车柴油机零部件有限公司 | Engine link length, curvature, torsion resistance detection device and detection method |
| CN110954044A (en) * | 2019-11-27 | 2020-04-03 | 广东四会实力连杆有限公司 | Connecting rod detection method |
| CN111854563A (en) * | 2020-07-22 | 2020-10-30 | 常州中车西屋柴油机有限公司 | Diesel engine connecting rod detection tool and detection method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4942761A (en) * | 1988-05-11 | 1990-07-24 | Dr. Ing. H.C.F. Porsche Ag | Sensing arrangement for measuring the rotational speed of a rotatable shaft having a crank |
| JP2000028348A (en) * | 1998-07-10 | 2000-01-28 | Mitsubishi Heavy Ind Ltd | Measuring method for deflection quantity of crankshaft and measuring device thereof |
| CN2727691Y (en) * | 2004-08-14 | 2005-09-21 | 重庆宗申技术开发研究有限公司 | Integrated crankshaft detecting device |
| CN201497634U (en) * | 2009-05-25 | 2010-06-02 | 浙江吉利汽车研究院有限公司 | Engine connecting rod parallelism and torsion resistance universal tester |
| CN201497479U (en) * | 2009-08-14 | 2010-06-02 | 台州宏鑫曲轴有限公司 | Device for detecting parallelism of crank shaft connecting rod assembly |
| CN101758398A (en) * | 2008-10-31 | 2010-06-30 | 江苏罡阳股份有限公司 | Bidirectional positioning fixture for crankshaft milling groove |
| CN103063117A (en) * | 2012-12-27 | 2013-04-24 | 重庆歇马机械曲轴有限公司 | Inspection device and inspection method for parallelism of connecting rod small end hole of engine crankshaft assembly |
-
2014
- 2014-12-15 CN CN201410778333.7A patent/CN104457524A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4942761A (en) * | 1988-05-11 | 1990-07-24 | Dr. Ing. H.C.F. Porsche Ag | Sensing arrangement for measuring the rotational speed of a rotatable shaft having a crank |
| JP2000028348A (en) * | 1998-07-10 | 2000-01-28 | Mitsubishi Heavy Ind Ltd | Measuring method for deflection quantity of crankshaft and measuring device thereof |
| CN2727691Y (en) * | 2004-08-14 | 2005-09-21 | 重庆宗申技术开发研究有限公司 | Integrated crankshaft detecting device |
| CN101758398A (en) * | 2008-10-31 | 2010-06-30 | 江苏罡阳股份有限公司 | Bidirectional positioning fixture for crankshaft milling groove |
| CN201497634U (en) * | 2009-05-25 | 2010-06-02 | 浙江吉利汽车研究院有限公司 | Engine connecting rod parallelism and torsion resistance universal tester |
| CN201497479U (en) * | 2009-08-14 | 2010-06-02 | 台州宏鑫曲轴有限公司 | Device for detecting parallelism of crank shaft connecting rod assembly |
| CN103063117A (en) * | 2012-12-27 | 2013-04-24 | 重庆歇马机械曲轴有限公司 | Inspection device and inspection method for parallelism of connecting rod small end hole of engine crankshaft assembly |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990805A (en) * | 2017-11-24 | 2018-05-04 | 常州中车柴油机零部件有限公司 | Engine link length, curvature, torsion resistance detection device and detection method |
| CN107990805B (en) * | 2017-11-24 | 2019-10-29 | 常州中车柴油机零部件有限公司 | Engine link length, curvature, torsion resistance detection device and detection method |
| CN110954044A (en) * | 2019-11-27 | 2020-04-03 | 广东四会实力连杆有限公司 | Connecting rod detection method |
| CN110954044B (en) * | 2019-11-27 | 2022-01-25 | 广东四会实力连杆有限公司 | Connecting rod detection method |
| CN111854563A (en) * | 2020-07-22 | 2020-10-30 | 常州中车西屋柴油机有限公司 | Diesel engine connecting rod detection tool and detection method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107514965B (en) | Crankshaft main journal roundness and crankshaft coaxiality error detection device | |
| CN102667957B (en) | For measuring the device that the fuel assembly of pressurized water reactor deforms | |
| CN101713629B (en) | Height measuring instrument | |
| CN103575460B (en) | Sensor check system and method | |
| CN102937404B (en) | Device for measuring pipe ovality | |
| CN104215219B (en) | Magnetostriction hydrostatic level and measuring method thereof in high precision | |
| CN102519347B (en) | Inner hole radial circle run-out detecting tool | |
| CN104121870A (en) | Measurement method for rotary kiln cylinder coaxiality | |
| CN104457524A (en) | Detection device and method for bending resistance and torsion resistance of crankshaft connecting rod assembly | |
| CN102620695B (en) | Measuring tool for three-coordinate measuring machine and detecting method of measuring tool | |
| CN105928446A (en) | Connecting rod parallelism detecting device and method | |
| CN208520354U (en) | A kind of cylinder sleeve of engine inner diameter measuring device | |
| CN205981143U (en) | Tower straightness accuracy measuring tool | |
| CN204329867U (en) | The pick-up unit of crankshaft rod assembly flexibility and torsion resistance | |
| CN104655066A (en) | Joint arm measuring machine | |
| CN107990805A (en) | Engine link length, curvature, torsion resistance detection device and detection method | |
| CN202048899U (en) | Shaft end measuring swing rod | |
| CN103206909A (en) | Detection and judgment method for included angle between inner ring conical rolling path and large flange | |
| CN205079701U (en) | Terminal surface circle convenient measuring apparatu of beating | |
| CN204255270U (en) | Oil drill rocker bearing gauge | |
| CN101451810A (en) | High precision cylinder helical compression spring squareness detecting method | |
| CN205664772U (en) | Depth of parallelism check out test set of connecting rod | |
| CN102937403B (en) | Large scale thread pitch diameter comparing measuring apparatus | |
| CN202885726U (en) | Large-sized inner thread pitch diameter comparative measurement instrument | |
| CN209371994U (en) | A kind of digital display type seabed flange position indicator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |