CN112697326A - Continuous full detection device for pull-out force of toner cartridge seal - Google Patents

Continuous full detection device for pull-out force of toner cartridge seal Download PDF

Info

Publication number
CN112697326A
CN112697326A CN202011478209.0A CN202011478209A CN112697326A CN 112697326 A CN112697326 A CN 112697326A CN 202011478209 A CN202011478209 A CN 202011478209A CN 112697326 A CN112697326 A CN 112697326A
Authority
CN
China
Prior art keywords
pull
shell
sliding
force
cylinder
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.)
Granted
Application number
CN202011478209.0A
Other languages
Chinese (zh)
Other versions
CN112697326B (en
Inventor
罗忠剑
沈伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuhai Maetone Technology Co ltd
Original Assignee
Zhuhai Maetone Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhuhai Maetone Technology Co ltd filed Critical Zhuhai Maetone Technology Co ltd
Priority to CN202011478209.0A priority Critical patent/CN112697326B/en
Publication of CN112697326A publication Critical patent/CN112697326A/en
Application granted granted Critical
Publication of CN112697326B publication Critical patent/CN112697326B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0028Force sensors associated with force applying means
    • G01L5/0033Force sensors associated with force applying means applying a pulling force

Abstract

The invention discloses a device for continuously and fully detecting the pull-out force of a toner cartridge seal, which comprises a clamping frame, a guide wheel, a fixed pulley, a tension meter, a pull rope and a tension device, wherein the clamping frame clamps a toner cartridge to be detected, one side of the clamping frame is exposed out of a pull ring of the toner cartridge seal, the tension device applies the pull-out force to the pull ring through the pull rope, the pull rope bypasses the fixed pulley, the wheel center of the fixed pulley is fixed on a foundation through the tension device, and the guide wheel is used for guiding when the angle of the pull rope changes. As shown in the figure, the chest expander applies the pulling force, the fixed pulley exists, the pulling force detected by the tension meter at the wheel center position of the fixed pulley is twice of the actual pulling force of the pulling ring, the amplification effect of the detection of the pulling force is achieved, when the sensitivity of the tension meter is small and the sensitivity of the chest expander applying force is limited, the measurement precision of the pulling out can be improved by twice, and the purpose of accurate force measurement is achieved.

Description

Continuous full detection device for pull-out force of toner cartridge seal
Technical Field
The invention relates to the technical field of selenium drum quality detection, in particular to a device for continuously and completely detecting the pull-out force of a selenium drum seal.
Background
The selenium drum is the indispensable partly of printer, and during the selenium drum was made, can set up the strip of paper used for sealing because transportation, storage demand, pull out the strip of paper used for sealing before the use, and the pull-out of strip of paper used for sealing out of paper used for sealing.
The pull-out force has a preferable range, the traditional pull-out force detection only detects the lower limit of the pull-out force range, namely, the seal is directly pulled out as a defective product to be rejected when the pull-out force is lower than a certain degree, while the upper limit of the pull-out force is not easy to detect because the qualified product can be pulled out if the upper limit of the pull-out force is used for testing, and the pull-out force detection sensitivity is lower when the pull-out force is inaccurate in the pull-out force precision and the pull-out force meter is directly used on a pull-out force application component.
Disclosure of Invention
The invention aims to provide a device for continuously and fully detecting the pull-out force of a toner cartridge seal so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a selenium drum strip of paper used for sealing draws out continuous full survey device of power, includes holding frame, guide pulley, fixed pulley, tensiometer, stay cord and chest expander, and the selenium drum of examining is treated in the holding frame clamping, and the pull ring of selenium drum strip of paper used for sealing is exposed to holding frame one side, and the chest expander exerts the power of drawing through the stay cord to the stay cord, and the stay cord passes around the fixed pulley, and on the wheel center of fixed pulley passed through the chest expander and is fixed to the basis, the guide pulley was used for the direction when stay cord angle changes. The pull force is applied by the chest expander, the existence of the fixed pulley, the pulling force detected by the pull meter at the wheel center position of the fixed pulley is twice of the actual pulling force applied by the pulling ring, the amplification effect of the detection of the pull force is achieved, when the sensitivity of the pull meter is small and the sensitivity of the application of the chest expander is limited, the measurement precision of the pulling out can be improved by two times, and the purpose of accurate force measurement is achieved.
Furthermore, the measuring device also comprises a movable pulley, the pull rope is divided into two parts, one end of one part of the pull rope is connected with the pull ring of the toner cartridge seal, one end of the pull rope is fixed to the wheel center of the movable pulley by winding the fixed pulley, one end of the other part of the pull rope is connected to the force application end of the chest expander, and the other end of the pull rope is fixed to the foundation after winding the movable pulley. The addition of movable pulley lets the application of force of chest expander be half of the actual atress of pull ring, but, when the strip of paper used for sealing was pulled out a part a little, the effect displacement of chest expander application of force end was the twice of pull ring displacement, and the aim at of doing so can be made the chest expander into special structure: the invention can rapidly remove the pulling force after the pulling force end generates a displacement slightly, so as to prevent the seal strip from being pulled out more, the invention carries out the verification of the pulling force through 'micro displacement', the pulling force is continuously promoted, after the pulling ring generates micro displacement, the pulling force is rapidly removed, so that the seal strip is not continuously pulled out, at the moment, the seal strip of the selenium drum is not damaged, and the key point of the effect lies in the timely force removal after the micro displacement of the pulling ring, in order to amplify the displacement, the effect is realized through the movable pulley, and actually, a plurality of movable pulleys can be arranged to continuously amplify the displacement.
Furthermore, the chest expander comprises a sliding shaft, a shell, a spacer disc, a sliding block and a sliding barrel, wherein the shell comprises a shell barrel and a shell cover, one end of the shell barrel is plugged by the shell cover, the sliding shaft penetrates through the shell cover to be exposed outside as a tension end, an inner boss is arranged on the inner surface of the shell barrel, the spacer disc is fixedly arranged on the sliding shaft and positioned in the shell barrel, the sliding block is arranged in the shell barrel and can slide along the inner wall, the outer surface of the sliding barrel is slidably arranged on the inner boss, the surface of the inner ring of the sliding barrel is slidably arranged on the surface of the sliding shaft, the end face of the sliding barrel, facing the shell cover, is opposite to the end face of the sliding block, the spacer disc is positioned on one side of the sliding barrel, the wall surface of the shell barrel is divided into three paths, and is led into independent pressure air sources through injection-pressure pipes, and is led.
Furthermore, the surface of the partition disc facing the sliding block is a first inclined surface, the surface of the sliding block facing the partition disc is a second inclined surface, and the slopes of the first inclined surface and the second inclined surface are the same. The slight axial displacement of the spacer disk and slider along the slide axis can be amplified by the slope to the clearance between the slider and spacer disk, the magnitude relationship between which is a trigonometric function with respect to the slope.
Further, sealing rings are arranged between the sliding block and the inner wall of the shell barrel, between the sliding barrel and the inner boss, between the partition disc and the sliding shaft and between the sliding barrel and the sliding shaft, and sealing ring grooves are dovetail grooves. The sealing ring prevents each cavity blowby, and the sealing ring is effectively injectd to the dovetail.
Furthermore, the injection pipe is connected with the wall surface of the shell through a sleeve clamping pipe piece. The cutting ferrule pipe fitting is convenient to connect.
Further, the sealing ring is a PTFE sealing ring. The PTFE has good lubricity and wear resistance.
Further, a linear bearing is provided at a position where the slide shaft passes through the housing.
Compared with the prior art, the invention has the following beneficial effects: the invention amplifies the pull-out force and the pull-out displacement through the combination of the fixed pulley and the movable pulley, quickly removes the pull-out force after the micro action of the pull-out displacement, prevents excessive force from being applied and pulled out, and can detect whether the pull-out force exceeds the upper limit of the pull-out force limit value after the lower limit of the pull-out force of the seal is determined.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the chest expander structure of the present invention;
FIG. 3 is a partial view A state one of FIG. 2;
fig. 4 is a partial view a state two of fig. 2.
In the figure: 1-clamping frame, 2-guide wheel, 31-fixed pulley, 32-movable pulley, 4-tension meter, 5-pull rope, 6-tension device, 61-sliding shaft, 62-shell, 6201-first chamber, 6202-second chamber, 6203-third chamber, 621-shell cylinder, 6211-inner boss, 622-shell cover, 63-spacer disc, 631-first inclined plane, 64-sliding block, 641-second inclined plane, 65-sliding cylinder, 66-drag hook, 69-injection pressure pipe and 9-foundation.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following technical solutions:
the utility model provides a continuous full survey device of selenium drum strip of paper used for sealing pull-out force which characterized in that: the survey device includes clamping frame 1, guide pulley 2, fixed pulley 31, tensiometer 4, stay cord 5 and chest expander 6, the selenium drum of examining and determine is treated to 1 clamping of clamping frame, 1 one side of clamping frame exposes the pull ring of selenium drum strip of paper used for sealing, chest expander 6 exerts the pull through stay cord 5 to the pull ring and exerts power, stay cord 5 bypasses fixed pulley 31, fixed pulley 31's wheel center is fixed to the basis 9 through chest expander 6 on, guide pulley 2 is used for the direction when the 5 angular variations of stay cord. As shown in figure 1, the chest-expander 6 applies a pulling force, the fixed pulley 31 exists, the pulling force detected by the tension meter 4 at the wheel center position of the fixed pulley 5 is twice of the actual pulling force applied to the pulling ring, so that the amplification effect of the pulling force detection is achieved, when the sensitivity of the tension meter 4 is small and the sensitivity of the chest-expander 6 applied force is limited, the measurement precision of the pulling force can be improved by two times, and the purpose of accurate force measurement is achieved.
The measuring device further comprises a movable pulley 32, the pull rope 5 is divided into two parts, one end of one part of the pull rope 5 is connected with a pull ring of the toner cartridge seal, one end of the other part of the pull rope 5 is wound around the fixed pulley 31 and fixed to the wheel center of the movable pulley 32, one end of the other part of the pull rope 5 is connected to the force application end of the force applying device 6, and the other end of the other part of the pull rope 5 is wound around the movable pulley 32 and. As shown in fig. 1, the addition of the movable pulley 32 allows the force applied by the tension device 6 to be half of the actual force applied by the tab, but the displacement of the force applied by the force applying end of the tension device 6 is twice the displacement of the tab when the seal is slightly pulled out, which aims to make the tension device 6 a special structure: after a slight displacement is generated at the pull end, the pull force can be quickly removed to prevent the seal from being pulled out more, the pull force of the seal is expected to be 20-30N, if the pull force of the selenium drum seal is smaller than the value during actual detection, the seal is directly pulled out to treat the selenium drum as a defective product, however, when the actual pull force of the seal is 26N, 20N force is applied to the pull ring and the seal is not pulled out, and when an inspector applies 30N, the seal of the qualified selenium drum can be pulled out, so that the good seal of the selenium drum is also pulled out, at the moment, the pull force is verified through micro displacement, the pull force is continuously improved, after the micro displacement is generated on the pull ring, the seal is quickly removed to prevent the seal from being pulled out, at the moment, the seal of the selenium drum is not damaged, and the key point of the effect lies in the timely force removal after the micro displacement, to amplify this displacement, it is achieved by means of a movable pulley, and in practice, a plurality of movable pulleys may be provided so that the displacement is amplified continuously.
The chest expander 6 comprises a sliding shaft 61 and a shell 62, the shell 62 comprises a shell 621 and a shell cover 622, one end of the shell 621 is sealed by the shell cover 622, a sliding shaft 61 penetrates through the shell cover 622 and is exposed outside as a tension end, an inner boss 6211 is arranged on the inner surface of the shell 621, the partition 63 is fixedly arranged on the sliding shaft 61 and is positioned in the shell 621, the sliding block 64 is arranged in the shell 621 and can slide along the inner wall, the outer surface of the sliding cylinder 65 is slidably arranged on the inner ring of the inner boss 6211, the surface of the inner ring of the sliding cylinder 65 is slidably arranged on the surface of the sliding shaft 61, the end surface of the sliding cylinder 65 facing the shell cover 622 faces the end surface of the sliding block 64, the partition 63 is positioned on one side of the sliding block 64, which is back to the sliding cylinder 65, the wall surface of the shell 62 is divided into three paths and is introduced into independent pressure air sources through an injection pipe 69 and is respectively introduced into two sides of the sliding block 64 and one side of the inner boss 6211, which is far away from the sliding block 64, and.
As shown in FIGS. 2-4, the interior of the housing 621 is divided into three regions: the first chamber 6201, the second chamber 6202 and the third chamber 6203 are respectively filled with gas with pressure of P1/P2/P3, when the chest expander 6 initially applies force, the P1/P3 gas is firstly injected, the P2 is injected after delay, P3 is a fixed value, and P1 is gradually increased, the pull-out force of the pull ring on the sliding shaft 61 is reflected as a leftward force, therefore, after the P1 is injected, the slider 64 moves to the right and clings to the sliding cylinder 65, in the figure, the gap a2 between the slider 64 and the sliding cylinder 65 is 0, after the P1 is slowly lifted to make the pull-out force of the pull ring reach the lowest value of 20N in the previous example, P2, P2> P1 is injected, however, because the force bearing area is smaller than the other side P1 acting area, the P2 does not push the slider 64 to move to the left, as the P1 slowly rises, once the P1 acting force is greater than the P3 acting force is greater than the original seal disc 63, the slider 64 and the left sliding cylinder 64 move integrally, however, the pressure difference between the two sides of the slider is different from that of the partition disk, the slight movement of the slider 64 is smaller than the right displacement movement of the partition disk 63 and the sliding cylinder 65, at this time, P2 gas leaks into the gap between the slider 64 and the sliding cylinder 65, the state of the pressure difference between the two sides of the slider 64 is changed, the slider 64 rapidly moves in the reverse direction to block the gap a1 between the slider 64 and the partition disk 63, the overall stress state formed by the slider 64 and the partition disk 63 is changed, reverse force is rapidly exerted on the sliding shaft 61, and the pressure magnitude relation at the moment is P2> P1> P3.
The surface of the division disk 63 facing the slider 64 is a first inclined surface 631, the surface of the slider 64 facing the division disk 63 is a second inclined surface 641, and the first inclined surface 631 and the second inclined surface 641 have the same inclination. The slight axial displacement of the spacer disk 63 and the slider 64 along the slide shaft 64 can be amplified by the inclination to the clearance between the slider 64 and the spacer disk 63, the magnitude relationship between which is a trigonometric function relationship with respect to the inclination.
Sealing rings are arranged between the sliding block 64 and the inner wall of the shell 621, between the sliding cylinder 65 and the inner boss 6211, between the partition disc 63 and the sliding shaft 61, and between the sliding cylinder 65 and the sliding shaft 61, and the sealing ring grooves are dovetail grooves. The sealing ring prevents each cavity blowby, and the sealing ring is effectively injectd to the dovetail.
The injection tube 69 is connected to the wall of the housing 621 by a ferrule tube. The cutting ferrule pipe fitting is convenient to connect.
The sealing ring is a PTFE sealing ring. The PTFE has good lubricity and wear resistance.
A linear bearing is provided at a position where the slide shaft 61 passes through the housing 62.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a continuous full survey device of selenium drum strip of paper used for sealing pull-out force which characterized in that: the survey device includes holding frame (1), guide pulley (2), fixed pulley (31), tensiometer (4), stay cord (5) and chest expander (6), the selenium drum that examination is treated to holding frame (1) clamping, and holding frame (1) one side exposes the pull ring of selenium drum strip of paper used for sealing, chest expander (6) exert the pulling force to the pull ring through stay cord (5), fixed pulley (31) are walked around in stay cord (5), the wheel center of fixed pulley (31) is fixed to on basis (9) through chest expander (6), guide pulley (2) are used for the direction when stay cord (5) angle changes.
2. The device for continuously and fully testing the cartridge seal pull-out force according to claim 1, wherein: the measuring device further comprises a movable pulley (32), the pull rope (5) is divided into two parts, one end of one part of the pull rope (5) is connected with a pull ring of the toner cartridge seal, one end of the other part of the pull rope is fixed to the wheel center of the movable pulley (32) by winding the fixed pulley (31), one end of the other part of the pull rope (5) is connected to the force application end of the force expander (6), and the other end of the other part of the pull rope is fixed to the foundation after winding the movable pulley (32).
3. The device for continuously and fully testing the cartridge seal pull-out force according to claim 2, wherein: the chest expander (6) comprises a sliding shaft (61), a shell (62), a partition disc (63), a sliding block (64) and a sliding cylinder (65), wherein the shell (62) comprises a shell cylinder (621) and a shell cover (622), one end of the shell cylinder (621) is sealed by the shell cover (622), the sliding shaft (61) penetrates through the shell cover (622) and is exposed outside to serve as a tension end, an inner boss (6211) is arranged on the inner surface of the shell cylinder (621), the partition disc (63) is fixedly arranged on the sliding shaft (61) and is positioned in the shell cylinder (621), the sliding block (64) is arranged in the shell cylinder (621) and can slide along the inner wall, the outer surface of the sliding cylinder (65) is slidably arranged on the inner ring of the inner boss (6211), the surface of the inner ring of the sliding cylinder (65) is slidably arranged on the surface of the sliding shaft (61), the end face of the sliding cylinder (65) facing the shell cover (622) faces the end face of the sliding block (64), and the partition disc (63) is positioned on one side, back of, the wall surface of the shell barrel (62) is divided into three paths, independent pressure air sources are introduced through the injection pressure pipe (69) and are respectively introduced into two sides of the sliding block (64) and one side of the inner boss (6211) departing from the sliding block (64), and the air pressure in the area between the sliding block (64) and the inner boss (6211) is larger than the air pressure at one side of the inner boss (6211) departing from the sliding block (64).
4. The device for continuously and fully testing the cartridge seal pull-out force according to claim 3, wherein: the surface of the partition disc (63) facing the sliding block (64) is a first inclined surface (631), the surface of the sliding block (64) facing the partition disc (63) is a second inclined surface (641), and the inclination of the first inclined surface (631) and the inclination of the second inclined surface (641) are the same.
5. The device for continuously and fully testing the cartridge seal pull-out force according to claim 3, wherein: sealing rings are arranged between the sliding block (64) and the inner wall of the shell cylinder (621), between the sliding cylinder (65) and the inner boss (6211), between the partition disc (63) and the sliding shaft (61) and between the sliding cylinder (65) and the sliding shaft (61), and sealing ring grooves are dovetail grooves.
6. The device for continuously and fully testing the cartridge seal pull-out force according to claim 3, wherein: the injection pressure pipe (69) is connected with the wall surface of the shell cylinder (621) through a clamping sleeve pipe fitting.
7. The device for continuously and fully testing the cartridge seal pull-out force according to claim 5, wherein: the sealing ring is a PTFE sealing ring.
8. The device for continuously and fully testing the cartridge seal pull-out force according to claim 3, wherein: the slide shaft (61) is provided with a linear bearing at a position where it passes through the housing (62).
CN202011478209.0A 2020-12-15 2020-12-15 Continuous full detection device for pull-out force of toner cartridge seal Active CN112697326B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011478209.0A CN112697326B (en) 2020-12-15 2020-12-15 Continuous full detection device for pull-out force of toner cartridge seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011478209.0A CN112697326B (en) 2020-12-15 2020-12-15 Continuous full detection device for pull-out force of toner cartridge seal

Publications (2)

Publication Number Publication Date
CN112697326A true CN112697326A (en) 2021-04-23
CN112697326B CN112697326B (en) 2021-08-10

Family

ID=75508179

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011478209.0A Active CN112697326B (en) 2020-12-15 2020-12-15 Continuous full detection device for pull-out force of toner cartridge seal

Country Status (1)

Country Link
CN (1) CN112697326B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7693448B1 (en) * 2009-06-05 2010-04-06 Wazana Brothers International, Inc. Angled seal for laser toner cartridge hopper
CN201444091U (en) * 2009-06-05 2010-04-28 富美科技有限公司 Pull force tester
CN201740617U (en) * 2010-08-11 2011-02-09 富美科技有限公司 Small selenium-drum seal tension tester
CN102095542A (en) * 2010-11-29 2011-06-15 宁波信泰机械有限公司 Test device for detecting insertion force or pull-out force of sealing strip
CN108956453A (en) * 2018-07-10 2018-12-07 瀚德(中国)汽车密封系统有限公司 A kind of removing of sealing element and test device
CN211768410U (en) * 2020-03-16 2020-10-27 中煤新集能源股份有限公司 Movable pulley type feeding device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7693448B1 (en) * 2009-06-05 2010-04-06 Wazana Brothers International, Inc. Angled seal for laser toner cartridge hopper
CN201444091U (en) * 2009-06-05 2010-04-28 富美科技有限公司 Pull force tester
CN201740617U (en) * 2010-08-11 2011-02-09 富美科技有限公司 Small selenium-drum seal tension tester
CN102095542A (en) * 2010-11-29 2011-06-15 宁波信泰机械有限公司 Test device for detecting insertion force or pull-out force of sealing strip
CN108956453A (en) * 2018-07-10 2018-12-07 瀚德(中国)汽车密封系统有限公司 A kind of removing of sealing element and test device
CN211768410U (en) * 2020-03-16 2020-10-27 中煤新集能源股份有限公司 Movable pulley type feeding device

Also Published As

Publication number Publication date
CN112697326B (en) 2021-08-10

Similar Documents

Publication Publication Date Title
CN100588923C (en) Temperature measurement device and temperature measurement method
CN205691490U (en) A kind of cascade connection type FPI hydrogen gas sensor based on cursor effect
CN112697326B (en) Continuous full detection device for pull-out force of toner cartridge seal
Kim et al. Fault diagnosis of ball bearings within rotational machines using the infrared thermography method
CN109655264B (en) Liquid lubrication thrust bearing test bed and observation method
JP2023547962A (en) Pipe inspection equipment and methods
Castle et al. Paper 6: Hydrodynamic Stability of the Flow between Eccentric Rotating Cylinders: Visual Observations and Torque Measurements
Guo et al. A wide range measuring system for thin lubricating film: from nano to micro thickness
CN106124317A (en) A kind of medical dialyzing paper anti-pressure ability detection device that can accurately test
CN106482658A (en) A kind of fibre strain coefficient automatic calibration method
CN102042886A (en) Gauge for enclasping force of oil seal
JPS5676767A (en) Detecting method for abnormality in swing-type nonreturn valve
WO2008146532A1 (en) Method for measuring stress in structure, and method and system for measuring distortion of object to be measured
CN209745740U (en) Contact type mechanical seal end surface abrasion loss measuring device
CN114484146A (en) Bidirectional running pipeline detector
CN210109136U (en) Gas static pressure main shaft gas film speed field testing device
Chang et al. The shear stress properties of ester lubricants in elastohydrodynamic contacts
CN205843961U (en) A kind of paillon foil formula self-acting air bearing Static stiffness measurement apparatus
Lines et al. First Paper: Effect of Under-Lip Temperature on the Lubrication of Rotary Shaft Garter Spring Seals
CN109458564A (en) A kind of nitrogen gas delivery-line gas leakage detection and interim device for plugging
CN209141459U (en) A kind of butt fusion welding machine inspection equipment
CN217764692U (en) Shell closes thorax equipment
CN214951915U (en) Detection device for measuring friction torque between bearing sealing ring and outer ring
CN219161558U (en) Tightness detection device
CN210922915U (en) Elasticity detection device of piston ring

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant