CN115406571B - Integrated test method for fastening and sucking friction torque of compressor suction cup - Google Patents
Integrated test method for fastening and sucking friction torque of compressor suction cup Download PDFInfo
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- CN115406571B CN115406571B CN202210810070.8A CN202210810070A CN115406571B CN 115406571 B CN115406571 B CN 115406571B CN 202210810070 A CN202210810070 A CN 202210810070A CN 115406571 B CN115406571 B CN 115406571B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The application discloses a method for integrally testing suction cup fastening and suction friction torque of a compressor, which comprises the steps of firstly fixing the compressor on a corresponding fixed tool, and then sequentially testing screw fastening torque, continuous screw tightening torque, screw loosening torque and suction friction torque between the suction cup and the compressor for screws used for connecting the suction cup and the compressor; according to the application, the screw tightening torque can be measured by installing the digital display torque wrench I outside the central screw of the sucker and rotating clockwise; reversely rotating, and measuring the loosening torque of the screw; the second digital display torque wrench is installed with the torque wrench sleeve, and rotates clockwise to measure the suction friction torque of the suction cup; the operation process is simple, no damage is caused to each part, and the torsion wrench sleeve can be replaced according to the different types of the suckers; solves the problems of multiple products, multiple types, incapability of accurately judging the suction friction torque, low efficiency and the like.
Description
Technical Field
The application relates to the technical field of testing after mounting of a compressor suction cup, in particular to a method for integrally testing fastening torque and suction friction torque of the compressor suction cup.
Background
As the main component of the rotation of the compressor, the sucker can be seen with reference to fig. 3, the outer ring of the front end of the compressor 11 is provided with a belt pulley 112, and the center of the front end is provided with a main shaft 111; the specific configuration of suction cup 12 can be seen in fig. 4 and 5; fig. 6 is an exploded view of the suction cup 12 and the compressor 11 when assembled, it can be seen that the suction cup 12 is assembled on the main shaft 111 of the compressor, and the suction cup 12 is connected with a threaded hole formed on the main shaft 111 by a screw 121. The suction cup and compressor mounting described above is conventional in the art.
After the compressor, the sucker and the screw rod are assembled, a certain gap exists between the sucker and a belt pulley of the compressor, a starting button is pressed down in the using process to electrify the compressor, at the moment, a voltage stabilizing power supply supplies power to the compressor, a magnetic force is generated after the compressor coil is electrified to enable the belt pulley to be attracted with the sucker, the sucker (the sucker descends through an elastic plate spring on the sucker) is attracted with the belt pulley, the whole compressor works, the sucker is connected with a main shaft through the screw rod, and therefore the belt pulley rotates, the sucker rotates, and the main shaft rotates to work; the idle compressor of the belt pulley does not work when not sucking; the engine rotates the pulley in an idle state (the compressor is not operating).
When the main shaft bolt is loosened in the rotation process, the suction disc and the belt pulley are separated from the compressor to fail, the suction disc is separated from the main shaft and falls off, and the fallen suction disc possibly damages the whole vehicle part, so that the control of the screwing torque of the main shaft suction disc bolt is important, and the main shaft suction disc is also a necessary inspection item of a product;
when the compressor works, after the sucking disc is sucked with the belt pulley, the sucking disc is not firmly sucked and slips (the belt pulley rotates and the sucking disc does not rotate), so that the friction torque after the sucking disc and the belt pulley are controlled to be a necessary detection item;
along with the trouble of switching and assembling operations of various types and shapes of compressors, the increase of products to be detected brings great inconvenience to the detection of suction cup friction torque and suction cup suction torque, and the application provides a method for integrally testing the fastening torque and the suction friction torque of the suction cup of the compressor to solve the defects.
Disclosure of Invention
The application aims to provide an integrated test method for fastening torque and suction friction torque of a sucker of a compressor, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present application provides the following technical solutions:
a method for integrally testing fastening and suction friction torque of a suction cup of a compressor comprises the following steps:
s1, fixing a compressor to be tested;
s2, when the screw torque of the sucker is detected, firstly setting the screw tightening torque standard of the sucker of the compressor as A;
s3, taking a digital display torque wrench I, clamping the wrench head at the end part of the digital display torque wrench I on a screw rod for connecting the compressor and the sucker, then controlling the digital display torque wrench I to rotate clockwise in the forward direction, testing the fastening torque of the screw rod, and displaying the screw rod torque value by the digital display torque wrench I;
s4, stopping rotating the digital display torque wrench I when the screw torque value reaches the standard A; observing whether the screw rod generates offset relative to the sucker, and judging whether the screw rod fastening torque is qualified;
s5, when the sucker does not deviate relative to the screw rod in the step S4, continuously rotating clockwise, and stopping rotating the digital torque wrench I after increasing the torque of the digital torque wrench to A+B; continuously observing whether the screw rod generates offset relative to the sucker or not to judge whether the continuous tightening torque of the screw rod is qualified or not;
s6, after the screw tightening torque test is finished, testing the loosening torque of the screw, and setting a loosening torque standard C of the screw; the digital display torque wrench is reversely controlled to rotate anticlockwise; stopping rotating the digital display torque wrench I when the digital display torque wrench I reaches the standard C, observing whether the screw rod generates offset relative to the sucker, and judging whether the loosening torque of the screw rod is qualified;
s7, after the sucker fastening and mounting test is completed, the digital display torque wrench I is taken down from the sucker;
s8, testing the attraction friction torque between the sucker and the belt pulley, sleeving a torque wrench sleeve on the sucker, then mounting a digital display torque wrench II on the torque wrench sleeve, and setting the standard value of the attraction friction torque between the sucker and the belt pulley of the compressor as D;
s9, an operator controls the digital display torque wrench II to rotate clockwise, and when the display value of the digital display torque wrench II is larger than the set value D, whether the suction friction torque of the suction cup is qualified or not is judged by judging whether the suction cup is offset relative to the belt pulley or not;
and S10, after the suction friction torque test of the suction cup is completed, the digital display torque wrench II is taken down.
As a further scheme of the application: in the step S4, the method for judging whether the screw rod generates offset relative to the sucker comprises the following steps: firstly, a central reference line a is drawn at the joint of the sucker and the screw rod, and the reference line is positioned on the surfaces of the sucker and the screw rod in a straight line shape; after the digital display torque wrench I is rotated, whether the screw rod is deviated relative to the sucker is judged by observing whether the central reference line a is in the same straight line.
As a further scheme of the application: the standard for judging whether the screw tightening torque is qualified in the step S4 is as follows: if the central reference line a indicates that the screw tightening torque meets the set value qualified on the same straight line, the screw is installed in place;
if the suction cup screw is not fastened in the same straight line, the screw fastening torque is judged to be unqualified, and the screw is not installed in place.
As a further scheme of the application: in the step S5, the standard for judging whether the screw continuous tightening torque is qualified is as follows: the center reference line a is not on the same straight line, namely, the deviation indicates that the screw tightening torque is qualified, and the screw is installed in place;
the center reference line a is on the same straight line, namely no offset indicates that the tightening torque of the sucker screw is larger than the set value A, and the screw tightening torque is judged to be unqualified, and the screw is not installed in place.
As a further scheme of the application: in the step S6, whether the loosening torque of the screw is qualified or not is judged by the following criteria: the center reference line a indicates that the torque is qualified on the same straight line, the center reference line a has no offset, and the screw is installed in place;
the center reference line a is not on the same straight line, the center reference line a is offset to indicate that the loosening torque does not accord with the set value, the screw loosening torque is judged to be unqualified, and the screw is not installed in place.
As a further scheme of the application: in the step S9, the method for judging whether the suction cup is offset relative to the belt pulley is as follows: drawing a reference line b on the contact surface of the sucker and the belt pulley, wherein the reference line b is positioned on the outer side walls of the sucker and the belt pulley and is in a straight line shape; after the digital display torque wrench II is rotated, whether the sucker is offset relative to the belt pulley is judged by observing whether the reference line b is in the same straight line or not.
As a further scheme of the application: in the step S9, the criterion for judging whether the suction friction torque between the suction cup and the belt pulley is qualified is as follows: when the second display value of the digital display torque wrench is larger than the set value D, stopping rotating and checking whether the reference line b is offset or not, namely whether the reference line b is on the same straight line or not:
if the reference line b is on the same straight line, namely, no offset exists, the standard is indicated;
if the reference line b is not on the same straight line, namely the deviation indicates disqualification, the suction friction torque between the sucker and the belt pulley is judged to be disqualification, and the sucker is not installed in place or the matching sizes of the sucker and the belt pulley are out of tolerance.
As a further scheme of the application: in the steps S2 and S5, the screw tightening torque criterion a is 16n.m.
As a further scheme of the application: the range value of B in the step S5 is 0.5N.m-1N.m
In step S6, the screw loosening torque criterion C is 13n.m.
As a further scheme of the application: in the step S8, the suction cup suction friction torque set value D is 55n.m.
Compared with the prior art, the application has the beneficial effects that:
firstly, a digital display torque wrench I is arranged outside a central screw rod of a sucker, and when the digital display torque wrench I is operated, an operator can measure the tightening torque of the screw rod by controlling the digital display torque wrench I to rotate clockwise; the screw rod rotates anticlockwise reversely, so that the loosening torque after the screw rod is assembled can be measured; the locking torque and the releasing torque of the sucker screw can be rapidly and effectively judged, the operation process is simple, and the damage to each part is avoided, so that the problem that the torque of the sucker screw cannot be accurately judged is solved;
secondly, a bionic torque wrench sleeve matched with the chuck is arranged outside the frame of the chuck, a digital display torque wrench II and the torque wrench sleeve are arranged, and an operator can measure the friction torque after the chuck is sucked by controlling the digital display torque wrench II to rotate clockwise; the operation process is simple, no damage is caused to each part, and the torsion wrench sleeve can be replaced according to the different types of the suckers; solves the problems of multiple products, multiple types, incapability of accurately judging the suction friction torque, low efficiency and the like.
Drawings
FIG. 1 is a schematic view of a compressor for performing a suction cup fastening test according to the present application;
FIG. 2 is a schematic diagram of a compressor according to the present application for performing an engaging friction torque test;
FIG. 3 is a schematic view of a compressor according to the present application;
FIG. 4 is a side view of the suction cup of the present application;
FIG. 5 is a top view of the suction cup of the present application;
FIG. 6 is an assembled view of the compressor, suction cup and screw of the present application;
FIG. 7 is a reference view of the suction cup and screw scribe a of the present application;
FIG. 8 is a reference view of the suction cup and pulley score line b of the present application;
reference numerals illustrate: 11. a compressor; 111. a main shaft; 112. a belt pulley; 12. a suction cup; 121. a screw; 13. a digital display torque wrench I; 14. a torque wrench sleeve; 15. and D, a digital display torque spanner II.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Fig. 3 is a schematic diagram of a compressor, the compressor 11 is a prior art, a belt pulley 112 is arranged on the outer ring of the front end of the compressor 11, a main shaft 111 is arranged in the center of the front end, and the main shaft 111 is connected with a sucker 12 through a screw 121;
fig. 7 and 8 show a specific structure of the suction cup 12, the suction cup 12 is a relatively mature technology, a triangular or other polygonal frame is arranged on the outer side surface of the suction cup 12, and when the suction cup is installed with the compressor 11, a screw 121 penetrates through the suction cup 12 to be connected to a main shaft 111 of the compressor and is connected with a threaded hole formed in the main shaft 111, so that the suction cup 12 can be installed on the compressor (a state shown in fig. 6). It should be noted that the compressor 11 and the suction cup 12 are both existing and mature technologies, and the installation between the compressor 11 and the suction cup 12 also belongs to the prior art, and the application is designed to this part, so the detailed analysis of the installation between the suction cup 12 and the compressor 11 is performed.
A method for integrally testing fastening and suction friction torque of a suction cup of a compressor comprises the following steps: firstly, the compressor 11 to be tested is placed on a corresponding fixed tool, and the compressor 11 is clamped and fixed. At the time of torque detection of the suction cup screw 121, the tightening torque standard of the screw 121 is set to 16n.m (the reference value of the tightening torque of the screw differs from screw to screw as the torque standard value thereof, and the operator needs to consider it according to the actual situation).
Referring to fig. 1, a digital display torque wrench 13 is taken, and the wrench head at the end is clamped on a screw 121 for connecting a compressor 11 and a suction cup 12; it should be noted here again that the head of the screw 121 may take on a different shape, such as a hexagonal screw, a diamond shape, or other shaped structures; the digital display torque spanner I13 can not sideslip when rotating the screw 121;
the first digital display torque wrench 13 is controlled to rotate clockwise, the fastening torque of the screw 121 is tested, and the first digital display torque wrench 13 displays the screw torque value; it should be noted that the digital display torque wrench is a torque wrench (also called torque wrench or torque wrench) with digital display, which is different from a general torque wrench, has a powerful operation function, belongs to the existing mature technology, and is not described in detail.
Stopping rotating the digital display torque wrench I when the screw torque value reaches the standard 16N.m; observing whether the screw rod generates offset relative to the sucker, and judging whether the screw rod fastening torque is qualified; no offset indicates that the screw tightening torque meets the set value; if the deviation indicates that the sucker screw is not fastened, judging that the screw is not fastened;
in one embodiment, the operator may draw a central reference line a (as shown in fig. 7) at the junction of the suction cup and the screw, which reference line extends over the suction cup and the screw, while observing whether the screw is offset relative to the suction cup; determining whether the screw is offset relative to the suction cup by observing whether the center reference line a is in the same straight line (by observing whether the line segment a in fig. 7 is offset); at this time, the standard for judging whether the screw tightening torque is acceptable is: the center reference line a is on the same straight line, and the screw tightening torque meets the set value; if the suction cup screw is not fastened in the same straight line, the screw fastening torque is judged to be unqualified, and the screw is not installed in place.
In another embodiment, the difference is that when observing whether the screw rod is offset relative to the sucker, an operator can set a reference point on both the sucker and the screw rod, and judge whether the screw rod is offset relative to the sucker by judging whether the distance or the angle between the reference point on the sucker and the reference point on the screw rod is offset; when the distance or the angle between the two reference points is changed, namely the screw rod is deviated relative to the sucker; when the distance or angle between the two reference points is not changed, i.e. the screw is not offset relative to the suction cup.
Referring to fig. 1, the torque of the screw was tested as it was continuously tightened: when the screw tightening torque is tested, the sucker does not deviate relative to the screw, and the sucker continuously rotates clockwise at the moment, so that the torque of the digital display torque wrench is increased to 17N.m, and the digital display torque wrench I13 stops rotating; continuously observing whether the screw rod generates offset relative to the sucker;
the center reference line a is not on the same straight line, i.e. there is an offset to indicate that the torque is acceptable (by looking at line segment a in fig. 7);
the fact that the tightening torque of the sucker screw is larger than a set value 16N.m is indicated without offset, whether the screw tightening torque is qualified or not is judged, and the screw is not installed in place; because the screw torque is smaller than the set value, the screw is loosened in the using process because the screw is not screwed down, and the torque is larger than the set value, so that the screw is possibly cracked and invalid due to sliding teeth or screw scratches in the operation of the compressor, and attention is paid to different types of screw torque standards.
In another embodiment, the other is the same as above except that the torque of the digital torque wrench is increased to 16.5N.m to observe whether the screw is offset relative to the suction cup; it should be noted that the reference value of the torque of the digital torque wrench is different from the standard value of the torque of different screws, and the operator needs to consider according to the actual situation.
Referring to fig. 1, after the screw tightening torque test is completed, the loosening torque of the screw is tested, and a loosening torque standard 13n.m of the screw is set (the loosening torque reference value of the screw is different for different screw torque standard values, and an operator needs to consider according to actual requirements); the digital display torque wrench I13 is reversely controlled to rotate anticlockwise; stopping rotating the digital display torque wrench I13 when the digital display torque wrench I13 reaches the standard 13N.m, and observing whether a central reference line a at the joint of the sucker and the screw is on the same straight line or not (by looking for a line segment a in fig. 7);
at this time, the center reference line a indicates that the torque is qualified on the same straight line;
the center reference line a is not on the same straight line, namely, the offset indicates that the loosening torque does not accord with the set value; the fact that the deviation indicates that the loosening torque does not accord with the set value indicates that the matching size of the screw rod and the shaft hole is out of tolerance, the screw rod is loosened in the using process to cause the failure risk of the compressor, the fact that the loosening torque of the screw rod is unqualified is judged, and the screw rod is not installed in place is achieved.
After the sucker fastening and mounting test is completed, the digital display torque wrench I is taken down from the sucker, so that the next test is prevented from being influenced.
Drawing a reference line b on the contact surface of the suction cup and the belt pulley with reference to fig. 8, wherein the reference line b extends to the suction cup and the belt pulley in a covering manner; judging whether the sucker is offset relative to the belt pulley or not by observing whether the central reference line b is in the same straight line or not;
in another embodiment, a reference point or a reference piece can be respectively arranged on the sucker and the belt pulley, and when the torque test is carried out, whether the sucker is offset relative to the belt pulley is judged by judging whether the distance or the angle between the two reference points or the reference pieces is changed or not.
Referring to fig. 2, when the attraction friction torque between the attraction disc and the pulley is tested: the torque wrench sleeve 14 is sleeved on the sucker, and the torque wrench sleeve 14 can be replaced correspondingly according to different sizes of the sucker;
then, the digital display torque wrench II 15 is mounted on the torque wrench sleeve 14 again, and the standard value of the attraction friction torque between the sucker and the compressor belt pulley is set to be 55N.m; stopping rotation when the suction friction torque is greater than a set value 55N.m, and checking whether the reference line b between the suction cup and the belt pulley is offset or not, namely whether the reference line b is on the same straight line or not (by checking the line segment b in fig. 8);
if no offset exists, the product is qualified, and the larger the friction torque of the suction is, the stronger the suction is, the better the slip cannot occur in the use process;
if the deviation is shown as unqualified, the suction friction torque between the sucker and the belt pulley is judged to be unqualified, the sucker is not installed in place or the matching size of the sucker and the belt pulley is out of tolerance; after the suction friction torque test of the suction cup is completed, the digital display torque wrench II is taken down.
Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.
Therefore, the above description is not intended to limit the scope of the application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (6)
1. The integrated test method for the fastening and suction friction torque of the suction cup of the compressor is characterized by comprising the following steps of:
s1, fixing a compressor to be tested;
s2, when the screw torque of the sucker is detected, firstly setting the screw tightening torque standard of the sucker of the compressor as A;
s3, taking a digital display torque wrench I, clamping the wrench head at the end part of the digital display torque wrench I on a screw rod for connecting the compressor and the sucker, then controlling the digital display torque wrench I to rotate clockwise in the forward direction, testing the fastening torque of the screw rod, and displaying the screw rod torque value by the digital display torque wrench I;
s4, stopping rotating the digital display torque wrench I when the screw torque value reaches the standard A; observing whether the screw rod generates offset relative to the sucker, and judging whether the screw rod fastening torque is qualified;
s5, when the sucker does not deviate relative to the screw rod in the step S4, continuously rotating clockwise, and stopping rotating the digital torque wrench I after increasing the torque of the digital torque wrench to A+B; continuously observing whether the screw rod generates offset relative to the sucker or not to judge whether the tightening torque of the screw rod is qualified or not;
s6, after the screw tightening torque test is finished, testing the loosening torque of the screw, and setting a loosening torque standard C of the screw; the digital display torque wrench is reversely controlled to rotate anticlockwise; stopping rotating the digital display torque wrench I when the digital display torque wrench I reaches the standard C, observing whether the screw rod generates offset relative to the sucker, and judging whether the loosening torque of the screw rod is qualified;
s7, after the sucker fastening and mounting test is completed, the digital display torque wrench I is taken down from the sucker;
s8, testing the attraction friction torque between the sucker and the belt pulley, sleeving a torque wrench sleeve on the sucker, then mounting a digital display torque wrench II on the torque wrench sleeve, and setting the standard value of the attraction friction torque between the sucker and the belt pulley of the compressor as D;
s9, an operator controls the digital display torque wrench II to rotate clockwise, and when the display value of the digital display torque wrench II is larger than the set value D, whether the suction friction torque of the suction cup is qualified or not is judged by judging whether the suction cup is offset relative to the belt pulley or not;
s10, after the suction friction torque test of the suction cup is completed, taking down the digital display torque wrench II;
in the step S4, the method for judging whether the screw is offset relative to the suction cup is as follows: firstly, a central reference line a is drawn at the joint of the sucker and the screw rod, and the reference line is positioned on the surfaces of the sucker and the screw rod in a straight line shape; after the digital display torque wrench I is rotated, whether the screw rod is deviated relative to the sucker is judged by observing whether the central reference line a is in the same straight line;
the standard for judging whether the screw tightening torque is qualified in the step S4 is as follows:
if the central reference line a indicates that the screw tightening torque meets the set value qualified on the same straight line, the screw is installed in place;
if the sucker screws are not fastened in the same straight line, judging that the screw fastening torque is not qualified, and the screws are not installed in place;
in the step S5, the criterion for judging whether the screw tightening torque is qualified is as follows:
if the central reference line a is not on the same straight line, namely, the deviation indicates that the screw tightening torque is qualified, and the screw is installed in place;
if the center reference line a is on the same straight line, namely, no offset indicates that the tightening torque of the sucker screw is larger than the set value A, judging that the screw tightening torque is unqualified, and the screw is not installed in place;
in the step S6, whether the loosening torque of the screw is qualified or not is judged by the following criteria:
if the central reference line a indicates that the torque is qualified on the same straight line, the central reference line a is not offset, and the screw is installed in place;
if the central reference line a is not on the same straight line, the central reference line a is offset to indicate that the loosening torque does not accord with the set value, and the screw loosening torque is judged to be unqualified, and the screw is not installed in place.
2. The integrated test method for fastening and sucking friction torque of a suction cup of a compressor according to claim 1, wherein the integrated test method is characterized in that: in the step S9, the method for judging whether the suction cup is offset relative to the belt pulley is as follows: drawing a reference line b on the contact surface of the sucker and the belt pulley, wherein the reference line b is positioned on the outer side walls of the sucker and the belt pulley and is in a straight line shape; after the digital display torque wrench II is rotated, whether the sucker is offset relative to the belt pulley is judged by observing whether the reference line b is in the same straight line or not.
3. The integrated test method for fastening and sucking friction torque of a suction cup of a compressor according to claim 2, wherein the integrated test method is characterized in that:
in the step S9, the criterion for judging whether the suction friction torque between the suction cup and the belt pulley is qualified is as follows: when the second display value of the digital display torque wrench is larger than the set value D, stopping rotating and checking whether the reference line b is offset or not, namely whether the reference line b is on the same straight line or not:
if the reference line b is on the same straight line, namely, no offset exists, the standard is indicated;
if the reference line b is not on the same straight line, namely the deviation indicates disqualification, the suction friction torque between the sucker and the belt pulley is judged to be disqualification, and the sucker is not installed in place or the matching sizes of the sucker and the belt pulley are out of tolerance.
4. The integrated test method for fastening and engaging friction torque of a compressor suction cup according to any one of claims 1 to 3, wherein: in the steps S2 and S5, the fastening torque standard A of the screw is 16N.m;
the range value of B in step S5 is 0.5N.m-1N.m.
5. The integrated test method for fastening and engaging friction torque of a compressor suction cup according to any one of claims 1 to 3, wherein: in step S6, the screw loosening torque criterion C is 13n.m.
6. The integrated test method for fastening and engaging friction torque of a compressor suction cup according to any one of claims 1 to 3, wherein: in the step S8, the suction cup suction friction torque set value D is 55n.m.
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| CN202210810070.8A CN115406571B (en) | 2022-07-11 | 2022-07-11 | Integrated test method for fastening and sucking friction torque of compressor suction cup |
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| CN202210810070.8A CN115406571B (en) | 2022-07-11 | 2022-07-11 | Integrated test method for fastening and sucking friction torque of compressor suction cup |
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| CN115406571B true CN115406571B (en) | 2023-09-29 |
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