CN110426304B - Ring block type friction wear test device with humidity cavity - Google Patents
Ring block type friction wear test device with humidity cavity Download PDFInfo
- Publication number
- CN110426304B CN110426304B CN201910681515.5A CN201910681515A CN110426304B CN 110426304 B CN110426304 B CN 110426304B CN 201910681515 A CN201910681515 A CN 201910681515A CN 110426304 B CN110426304 B CN 110426304B
- Authority
- CN
- China
- Prior art keywords
- humidity
- humidity chamber
- pressure head
- cavity
- block type
- 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.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 119
- 238000007789 sealing Methods 0.000 claims abstract description 67
- 230000002093 peripheral effect Effects 0.000 claims abstract description 18
- 230000009471 action Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 4
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000011056 performance test Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a ring block type friction wear test device with a humidity cavity, which comprises a humidity cavity main body, a sealing cover assembly, a loading pressure head, a force transducer, a humidity sensor, a rotary table, a test piece ring and a test piece block, wherein the humidity cavity main body defines the humidity cavity, and an upper opening is formed in the upper side of the humidity cavity main body; the sealing cover assembly is sealed on the upper opening; the upper end of the loading pressure head is fixed on the inner side surface of the sealing cover assembly, and the lower end of the loading pressure head extends into the humidity cavity from the upper opening and can move up and down and horizontally; the force measuring sensor is arranged on the outer side surface of the sealing cover assembly; the humidity sensor is arranged on the humidity cavity main body; the rotating platform is rotatably arranged in the humidity cavity, and the axial direction of the rotating platform extends along the front-back direction; the test piece ring is coaxially sleeved and fixed on the peripheral surface of the rotating platform; the test piece is located between the loading pressure head and the test piece ring, and when the test piece ring rotates, the test piece ring and the test piece under the action of the loading pressure head rub. The device has good humidity cavity closure and accurate and reliable test result.
Description
Technical Field
The invention relates to the technical field of friction and wear performance tests of environmental humidity, in particular to a humidity cavity device for a ring block type friction and wear performance test.
Background
The study of the effect of humidity on the frictional wear performance generally requires experiments with a frictional wear performance tester equipped with a humidity chamber device. At present, the annular block type friction wear test device with the humidity cavity has some problems due to structural design defects, such as poor tightness of the humidity cavity, incapability of monitoring humidity change in the humidity cavity, limited movement of a loading pressure head, incapability of timely discharging water drops after condensation in the humidity cavity and the like, and the problems greatly influence a test result and even can not complete an annular block type friction wear test in a humidity environment.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide the ring block type friction and wear test device with the humidity cavity, which can be used for a ring block module of a friction and wear test machine, and has the advantages of good humidity cavity sealing performance and accurate and reliable test result.
The annular block type friction wear test device with the humidity cavity comprises:
the humidity chamber comprises a humidity chamber main body, wherein the humidity chamber main body defines a humidity chamber, and an upper opening communicated with the humidity chamber is formed in the upper side of the humidity chamber main body;
the sealing cover assembly covers the upper opening and is connected with the humidity cavity main body in a sealing mode;
the upper end of the loading pressure head is fixed on the inner side surface of the sealing cover assembly, the lower end of the loading pressure head extends into the humidity cavity from the upper opening, and the loading pressure head can move up and down and horizontally;
the load cell is arranged on the outer side surface of the sealing cover assembly, is positioned above the loading pressure head and is used for measuring the loading force applied to the loading pressure head;
the humidity sensor is arranged on the humidity cavity body and used for measuring the humidity in the humidity cavity;
the rotating table is positioned below the loading pressure head and is rotatably arranged in the humidity cavity, and the axial direction of the rotating table extends along the front-back direction;
the test piece ring is coaxially sleeved and fixed on the peripheral surface of the rotating platform so as to synchronously rotate along with the rotating platform;
and the test piece block is positioned between the loading pressure head and the test piece ring, and when the test piece ring rotates, friction is generated between the test piece ring and the test piece block under the action of the loading pressure head.
According to the annular block type friction and wear test device with the humidity cavity, an annular block type friction and wear test structure is formed through the rotary table, the test piece ring, the test piece block and the loading pressure head, the annular block type friction and wear test device can be used for an annular block module of a friction and wear test machine, and good guarantee is provided for test development. By arranging the sealing cover assembly, the humidity cavity has better sealing performance, can be effectively isolated from the surrounding environment, and ensures that the humidity and the pressure in the humidity cavity are stable during a friction and wear test; by arranging the humidity sensor, the humidity value in the humidity cavity during the friction wear test can be clearly and accurately obtained; by arranging the force measuring sensor, the loading load value can be conveniently and accurately obtained, and the accurate and reliable test result is facilitated.
According to one embodiment of the invention, the sealing cover assembly comprises a sealing cover body, a clamp sleeve and an upper end cover, wherein the top and the bottom of the sealing cover body are respectively provided with a top cover opening and a bottom cover opening, the clamp sleeve seals the top cover opening, the upper end of the loading pressure head is fixed on the inner side surface of the clamp sleeve, the bottom cover opening of the sealing cover body is communicated with the upper opening hole, and the lower end of the sealing cover body is connected with the humidity cavity main body in a sealing mode through the upper end cover.
According to a further embodiment of the present invention, the clamp sleeve includes a top plate and a surrounding plate extending downward from a periphery of the top plate, a lower peripheral portion of the surrounding plate is connected with a peripheral portion of the top cover opening of the seal cover body in a sealing manner through a first seal ring, and an upper end of the loading ram is fixed on an inner side surface of the top plate.
According to a further embodiment of the present invention, the upper end cover includes a first ring body and a second ring body coaxially connected up and down, the first ring body is hermetically connected to a periphery of the bottom cover opening of the seal cover body through a second seal ring, an outer peripheral surface of the second ring body is hermetically fitted to an inner peripheral surface of the upper opening, and the loading pressure head penetrates through the first ring body and the second ring body.
According to a still further embodiment of the present invention, the first ring body has an outer diameter dimension greater than an outer diameter dimension of the second ring body such that the lower bottom surface of the first ring body abuts against the outer surface of the humidity chamber body.
According to a further embodiment of the invention, the sealing boot body is a flexible sealing boot.
According to a still further embodiment of the present invention, the sealing cap body is made of PA film.
According to some embodiments of the invention, further comprising a buffer plate disposed between the load cell and the seal cap assembly.
According to some embodiments of the invention, the apparatus further comprises a motor assembly connected to the rotary table to drive the rotary table to rotate.
According to a further embodiment of the present invention, a rear opening communicated with the humidity chamber is formed at the rear end of the humidity chamber main body, the motor assembly includes a motor and a rotating shaft connected to the motor, the motor is fixed on the outer side surface of the rear end of the humidity chamber main body and seals the rear opening, the rotating shaft extends into the humidity chamber from the rear opening, and the rotating table is coaxially and hermetically sealed and arranged on the rotating shaft and covers the portion of the rotating shaft extending into the humidity chamber.
According to a further embodiment of the present invention, the motor assembly further includes a motor mounting plate, the motor is fixed on one surface of the motor mounting plate, and the opposite surface of the motor mounting plate is sealed and sealed in the rear opening and is fixedly connected to the outer side surface of the rear end of the humidity chamber main body.
According to some embodiments of the invention, the humidity chamber further comprises a front end cover, the front end of the humidity chamber main body is further provided with a front opening, and the front end cover is sealed in the front opening.
According to a further embodiment of the present invention, the front end cap and the humidity chamber body are made of polymethyl methacrylate material.
According to some embodiments of the invention, further comprising a block holder mounted on the humidity chamber body to restrain the front and rear ends of the test block.
According to some embodiments of the invention, the humidity chamber body is provided with a humidity sensor mounting hole, and the humidity sensor is mounted in the humidity sensor mounting hole.
According to some embodiments of the invention, the humidity chamber body is provided with a threaded hole for connecting a humidity generator.
According to some embodiments of the invention, the humidity chamber body is provided with a drain at a bottom thereof.
According to some embodiments of the invention, the drain device comprises a screw hole disposed at the bottom of the humidity chamber body and a screw cooperatively connected with the screw hole.
According to some embodiments of the invention, an inner circumferential surface of the humidity chamber is a circular arc surface.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic cross-sectional view of a ring-block type frictional wear test apparatus with a humidity chamber according to an embodiment of the present invention.
FIG. 2 is a front view of a ring block type frictional wear test device with a humidity chamber according to an embodiment of the present invention.
Reference numerals:
ring block type friction and wear test device 1000 with humidity cavity
The first sealing ring 203 of the clamp sleeve 202 top plate 2021 and the baffle 2022 of the sealing cover body 201
The upper end cap 204 includes a first ring 2041, a second ring 2042 and a second seal ring 205
Loading ram 3
Rotating table 5
Motor assembly 9 motor 901 motor mounting plate 902
Screw 12
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A ring-type frictional wear test apparatus 1000 with a humidity chamber according to an embodiment of the present invention will be described with reference to fig. 1 to 2.
As shown in fig. 1 and 2, the annular block type friction wear test device 1000 with a humidity chamber according to an embodiment of the present invention includes a humidity chamber body 1, a seal cover assembly 2, a loading ram 3, a load cell 4, a rotary table 5, a test piece ring 6, and a test piece block 7. The humidity chamber main body 1 defines a humidity chamber, and an upper opening communicated with the humidity chamber is formed in the upper side of the humidity chamber main body 1; the sealing cover component 2 covers the upper opening and is connected with the humidity cavity main body 1 in a sealing way; the upper end of the loading pressure head 3 is fixed on the inner side surface of the sealing cover component 2, the lower end of the loading pressure head extends into the humidity cavity from an upper opening, and the loading pressure head 3 can move up and down and horizontally; the load cell 4 is arranged on the outer side surface of the seal cover assembly 2 and above the loading pressure head 3 and is used for measuring the loading force applied to the loading pressure head 3; the humidity sensor is arranged on the humidity cavity body 1 and used for measuring the humidity in the humidity cavity; the rotating platform 5 is positioned below the loading pressure head 3 and is rotatably arranged in the humidity cavity, and the axial direction of the rotating platform 5 extends along the front-back direction; the test piece ring 6 is coaxially sleeved and fixed on the peripheral surface of the rotating platform 5, so that the test piece ring 6 synchronously rotates along with the rotating platform 5; the test piece 7 is positioned between the loading pressure head 3 and the test piece ring 6, and when the test piece ring 6 rotates, friction occurs between the test piece ring 6 and the test piece 7 under the action of the loading pressure head 3.
Specifically, the humidity chamber body 1 defines a humidity chamber, and is mainly a relatively closed environment space for constructing a test for frictional wear performance test. The upper side of the humidity cavity main body 1 is provided with an upper opening communicated with the humidity cavity, so that the loading pressure head 3 can conveniently stretch into the humidity cavity from the upper side of the upper opening, and the loading pressure head 3 can conveniently move in the vertical direction and the horizontal direction.
The seal cover subassembly 2 covers and locates the trompil and with humidity chamber main part 1 sealing connection, that is to say, seals up the trompil on humidity chamber main part 1 through seal cover subassembly 2 for the humidity chamber is comparatively sealed, and humidity and pressure in the humidity chamber are stable when being favorable to the frictional wear performance test, improve the rate of accuracy of test result.
The upper end of loading pressure head 3 is fixed on the medial surface of sealed cowling subassembly 2 and the lower extreme stretches into in the humidity chamber from last trompil to guarantee that loading pressure head 3 is in comparatively confined humidity chamber. Loading pressure head 3 can be with horizontal migration from top to bottom, it can be understood, loading pressure head 3 mainly is test piece 7 in transmitting the humidity chamber with outside loading power, make test piece 7 extruded on the outer peripheral face of rotatory test piece ring 6, so that produce relative friction between test piece ring 6 and the test piece 7, when testing, need make loading pressure head 3 move down and hug closely on the upper surface of test piece 7, make the lower surface of test piece 7 hug closely on the outer peripheral face of test piece ring 6 simultaneously, in the experimentation, need adjust the pushing down position of pressure head according to actual demand, consequently, need guarantee that loading pressure head 3 can be with horizontal migration from top to bottom.
The load cell 4 is disposed on the outer side of the seal cap assembly 2, and the load cell 4 is located above the loading ram 3 for measuring the loading force exerted on the loading ram 3. It will be appreciated that the isolation of the humidity chamber from the load cell 4 is achieved by the sealed enclosure assembly 2, preventing the high humidity environment from affecting the life of the load cell 4. The data of the external loading load can be measured through the force measuring sensor 4, and the accuracy and reliability of the test result are facilitated.
The humidity sensor is installed on the humidity chamber main body 1 and used for measuring the humidity of the humidity chamber, so that the humidity value in the humidity chamber can be conveniently, clearly and accurately known, the humidity change in the humidity chamber is monitored, and the accuracy and reliability of a test result are facilitated.
The rotating table 5 is positioned below the loading ram 3 and is rotatably disposed in the humidity chamber, and an axial direction of the rotating table 5 extends in the front-rear direction.
The test piece ring 6 is coaxially sleeved and fixed on the outer peripheral surface of the rotating platform 5, so that the test piece ring 6 synchronously rotates along with the rotating platform 5, and the test piece ring 6 can make relative friction movement relative to the test piece block 7 during testing.
The test piece 7 is positioned between the loading pressure head 3 and the test piece ring 6, and when the test piece ring 6 rotates, friction occurs between the test piece ring 6 and the test piece 7 under the action of the loading pressure head 3, so that the friction and wear test can be smoothly carried out.
According to the annular block type friction and wear test device 1000 with the humidity cavity, an annular block type friction and wear test structure is formed by the rotary table 5, the test piece ring 6, the test piece block 7 and the loading pressure head 3, and the annular block type friction and wear test device can be used for an annular block module of a friction and wear test machine and provides good guarantee for test development. By arranging the sealing cover component 2, the humidity cavity has better sealing performance, can be effectively isolated from the surrounding environment, and ensures that the humidity and the pressure in the humidity cavity are stable during a friction and wear test; by arranging the humidity sensor, the humidity value in the humidity cavity during the friction wear test can be clearly and accurately obtained; by arranging the force measuring sensor 4, the loading load value can be conveniently and accurately obtained, and the accuracy and reliability of the test result are facilitated.
According to an embodiment of the present invention, the sealing cap assembly 2 includes a sealing cap body 201, a clamp sleeve 202 and an upper end cap 204, the top and bottom of the sealing cap body 201 are respectively provided with a top cap opening and a bottom cap opening, the clamp sleeve 202 seals the top cap opening, the upper end of the loading ram 3 is fixed on the inner side surface of the clamp sleeve 202, the bottom cap opening of the sealing cap body 201 is communicated with the upper opening hole, and the lower end of the sealing cap body 201 is hermetically connected with the humidity chamber main body 1 through the upper end cap 204. It can be understood that the sealing cover assembly 2 has a sealing cover body 201 and a clamp sleeve 202, and the lower end of the sealing cover body 201 is connected with the humidity chamber main body 1 in a sealing manner and the upper end is connected with the clamp sleeve 202 in a sealing manner, thereby ensuring that the humidity chamber has better sealing performance. The loading pressure head 3 is fixed with the clamp sleeve 202 and wrapped in the humidity cavity through the sealing cover assembly 2, so that sealing is realized. Meanwhile, the clamp sleeve 202 provides effective support for the seal cover body 201, and the seal cover body 201 can be prevented from touching the loading pressure head 3 to influence the measurement result.
According to a further embodiment of the present invention, the clamp sleeve 202 includes a top plate 2021 and a shroud plate 2022 extending downward from the periphery of the top plate 2021, the lower periphery of the shroud plate 2022 is sealingly connected to the periphery of the top cover opening of the seal cover body 201 by a first seal ring 203, and the upper end of the loading ram 3 is fixed to the inner side surface of the top plate 2021. Therefore, the clamp sleeve 202 provides effective support for the seal cover body 201, and the seal cover body 201 can be prevented from touching the loading ram 3 to influence the measurement result. Meanwhile, the coaming 2022 of the clamp sleeve 202 is hermetically connected with the periphery of the top cover opening of the sealing cover body 201 through the first sealing ring 203, so that the assembly and disassembly are convenient.
According to a further embodiment of the present invention, the upper end cap 204 includes a first ring 2041 and a second ring 2042 coaxially connected up and down, the first ring 2041 is connected with the periphery of the bottom cap opening of the seal cap body 201 in a sealing manner by a second seal ring 205, the outer peripheral surface of the second ring 2042 is in sealing engagement with the inner peripheral surface of the upper opening, and the loading head 3 passes through the first ring 2041 and the second ring 2042 in a vertically and horizontally movable manner. It can be understood that, the seal cover body 201 is connected to the humidity chamber main body 1 through the upper end cap 204, wherein the first ring 2041 of the upper end cap 204 is connected to the peripheral portion of the bottom cover opening of the seal cover body 201 through the second sealing ring 205 in a sealing manner, which is convenient to disassemble and assemble and simultaneously realizes a better sealing state, and the second ring 2042 of the upper end cap 204 is in sealing fit with the inner peripheral surface of the upper opening, for example, by adopting clearance fit H6/H5, which is convenient to disassemble and assemble and simultaneously realizes a better sealing state.
According to a still further embodiment of the present invention, the outer diameter of the first ring 2041 is larger than the outer diameter of the second ring 2042, so that the lower bottom surface of the first ring 2041 abuts against the outer surface of the humidity chamber body 1, thereby facilitating the positioning and installation of the upper end cap 204.
According to a further embodiment of the present invention, the sealing boot body 201 is a flexible sealing boot. Thus, the loading ram 3 can be moved in the vertical direction and the horizontal direction during the frictional wear test.
According to a still further embodiment of the present invention, the sealing boot body 201 is made of PA film. For example, a PA film with a thickness of 20 μm can be selected. The PA film has certain flexibility, and the loading pressure head 3 can move in the vertical direction and the horizontal direction; the PA film has high light transmittance, so that the specific position of the loading pressure head 3 can be observed conveniently; and the PA film has certain water absorption, can generate adsorption to condensed water drops, and avoids the water drops from falling to a test area.
According to some embodiments of the present invention, further comprising a buffer strip 8, the buffer strip 8 being disposed between the load cell 4 and the seal cap assembly 2. Through setting up buffer plate 8, can protect force cell sensor 4, simultaneously, also made things convenient for the erection joint of force cell sensor 4 and sealed cowling subassembly 2.
According to some embodiments of the present invention, a motor assembly 9 is further included, and the motor assembly 9 is connected to the rotating table 5 to drive the rotating table 5 to rotate.
According to a further embodiment of the present invention, a rear opening communicated with the humidity chamber is formed at the rear end of the humidity chamber main body 1, the motor assembly 9 includes a motor 91 and a rotating shaft connected to the motor 91, the motor 91 is fixed on the outer side surface of the rear end of the humidity chamber main body 1 and seals the rear opening, so that the humidity chamber has a better sealing property, the rotating shaft extends into the humidity chamber from the rear opening, the rotating table 5 is coaxially and hermetically sleeved on the rotating shaft, for example, a gap of 0.2mm is formed between the inner diameter of the rotating table 5 and the outer diameter of the rotating shaft of the motor 91, and covers the portion of the rotating shaft extending into the humidity chamber, thereby conveniently realizing the sealing of the rotating shaft by the rotating table 5 and the reliable connection with the rotating shaft, and greatly reducing the area of the rotating shaft of the motor 91 exposed in.
According to a further embodiment of the present invention, the motor assembly 9 further includes a motor mounting plate 902, the motor 91 is fixed on one surface of the motor mounting plate 902, and the opposite surface of the motor mounting plate 902 is sealed and sealed in the rear opening and is fixedly connected to the outer side surface of the rear end of the humidity chamber body 1. By providing the motor mounting plate 902, the motor 91 can be conveniently mounted on the outer side surface of the rear end of the humidity chamber body 1.
According to some embodiments of the present invention, the humidity chamber further comprises a front end cover 10, and the front end of the humidity chamber body 1 is further provided with a front opening, and the front end cover 10 is sealed in the front opening. Specifically, the front end cover 10 is installed on the humidity cavity main body 1 through the mounting screws, the test pieces in the humidity cavity, namely the test piece block 7 and the test piece ring 6, can be replaced quickly, the matching between the front end cover 10 and the humidity cavity main body 1 is H8/g8 clearance fit, and meanwhile, the matching surface is subjected to frosting treatment, so that the sealing performance of the humidity cavity is improved.
According to a further embodiment of the present invention, the front end cap 10 and the humidity chamber body 1 are made of polymethyl methacrylate material. Because polymethyl methacrylate is colorless transparent material, have fine insulating property, processability and weatherability good, the heat resistance is good, hardness is high and advantages such as non-deformable, can improve humidity chamber main part 1's corrosion resistance, alleviate humidity chamber main part 1's weight, improve humidity chamber main part 1's whole transparency.
According to some embodiments of the present invention, the humidity chamber further comprises a block holder 11, and the block holder 11 is mounted on the humidity chamber body 1 to limit the front end and the rear end of the test piece 7 and prevent the test piece 7 from falling off in the friction wear test.
Alternatively, the block holder 11 may be installed in such a manner that U-shaped grooves with opposite directions are respectively formed on the left and right sides of the matching surfaces of the humidity chamber body 1 and the front end cover 10; when the humidity cavity body 1 and the front end cover 10 are correctly installed, the U-shaped groove on the left side of the humidity cavity body 1 and the U-shaped groove on the left side of the front end cover 10 are spliced into a round hole to realize round shaft sealing on the left side of the block holder 11; the U-shaped groove on the right side of the humidity cavity body 1 and the U-shaped groove on the right side of the front end cover 10 body are spliced into a round hole to seal the round shaft on the right side of the block clamp holder 11. Therefore, the disassembly and assembly are convenient.
According to some embodiments of the present invention, the humidity chamber body 1 is provided with a humidity sensor mounting hole 101, and the humidity sensor is mounted in the humidity sensor mounting hole 101, so that the installation is convenient.
According to some embodiments of the present invention, the humidity chamber body 1 is provided with a threaded hole 102 for connecting a humidity generator, and the humidity generator can be conveniently externally connected through the threaded hole 102, so as to adjust the humidity condition in the humidity chamber.
According to some embodiments of the invention, the bottom of the humidity chamber body 1 is provided with a drain. By providing the drainage means, a large amount of water accumulated in the humidity chamber can be conveniently drained.
According to a further embodiment of the present invention, the drainage device comprises a screw hole disposed at the bottom of the humidity chamber body 1 and a screw 12 cooperatively connected with the screw hole. When a large amount of water is accumulated in the humidity chamber, the screw 12 is unscrewed and the water is discharged from the screw hole out of the humidity chamber. The drainage device is simple in structure and convenient to operate.
According to the further embodiment of the invention, the inner circumferential surface of the humidity cavity is a circular arc surface, so that condensed water drops in the test process can be prevented from interfering with the test result, and the generated water drops are collected and discharged out of the humidity cavity through the drain valve.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (16)
1. The utility model provides a take ring block formula frictional wear test device in humidity chamber which characterized in that includes:
the humidity chamber comprises a humidity chamber main body, wherein the humidity chamber main body defines a humidity chamber, an upper opening communicated with the humidity chamber is formed in the upper side of the humidity chamber main body, and a drainage device is arranged at the bottom of the humidity chamber main body;
the sealing cover assembly covers the upper opening and is connected with the humidity cavity main body in a sealing mode;
the upper end of the loading pressure head is fixed on the inner side surface of the sealing cover assembly, the lower end of the loading pressure head extends into the humidity cavity from the upper opening, and the loading pressure head can move up and down and horizontally;
the load cell is arranged on the outer side surface of the sealing cover assembly, is positioned above the loading pressure head and is used for measuring the loading force applied to the loading pressure head;
the humidity sensor is arranged on the humidity cavity body and used for measuring the humidity in the humidity cavity;
the rotating table is positioned below the loading pressure head and is rotatably arranged in the humidity cavity, and the axial direction of the rotating table extends along the front-back direction;
the test piece ring is coaxially sleeved and fixed on the peripheral surface of the rotating platform so as to synchronously rotate along with the rotating platform;
the test piece is positioned between the loading pressure head and the test piece ring, and when the test piece ring rotates, the test piece ring rubs against the test piece under the action of the loading pressure head;
the sealed cowling subassembly includes sealed cowling body, anchor clamps cover and upper end cover, sealed cowling body top and bottom are equipped with top cover mouth and end cover mouth respectively, anchor clamps cover is sealed the top cover mouth, the upper end of loading pressure head is fixed on the medial surface of anchor clamps cover, the sealed cowling body the end cover mouth with go up the trompil intercommunication just the lower extreme of sealed cowling body with humidity chamber main part passes through upper end cover sealing connection, the sealed cowling body has the hydroscopicity, the anchor clamps cover include the roof and from the surrounding downwardly extending's of roof bounding wall, the lower week portion of bounding wall with the sealed cowling body the week portion of top cover mouth passes through first sealing washer sealing connection, the upper end of loading pressure head is fixed on the medial surface of roof.
2. The annular block type friction wear test device with the humidity chamber as claimed in claim 1, wherein the upper end cover comprises a first annular body and a second annular body which are coaxially connected up and down, the first annular body is hermetically connected with the periphery of the bottom cover opening of the seal cover body through a second seal ring, the outer peripheral surface of the second annular body is hermetically matched with the inner peripheral surface of the upper opening, and the loading pressure head penetrates through the first annular body and the second annular body.
3. The wet chamber ring block type frictional wear test device as claimed in claim 2, wherein the outer diameter of the first ring body is larger than the outer diameter of the second ring body, so that the lower bottom surface of the first ring body abuts against the outer surface of the wet chamber body.
4. The annular block type friction wear test device with the humidity chamber as claimed in claim 1, wherein the seal cover body is a flexible seal cover.
5. The annular block type friction wear test device with the humidity chamber as claimed in claim 4, wherein the seal cover body is made of PA film.
6. The annular block type friction wear test device with humidity chamber according to any one of claims 1 to 4, characterized by further comprising a buffer sheet disposed between the load cell and the seal cap assembly.
7. The annular block type friction wear test device with the humidity chamber as claimed in any one of claims 1 to 4, further comprising a motor assembly connected to the rotary table to drive the rotary table to rotate.
8. The annular block type friction wear test device with the humidity cavity according to claim 7, wherein a rear opening communicated with the humidity cavity is formed in the rear end of the humidity cavity body, the motor assembly comprises a motor and a rotating shaft connected with the motor, the motor is fixed on the outer side face of the rear end of the humidity cavity body and seals the rear opening, the rotating shaft extends into the humidity cavity from the rear opening, and the rotating table is coaxially arranged on the rotating shaft in a sealing manner and covers the part of the rotating shaft extending into the humidity cavity.
9. The annular block type friction wear test device with the humidity cavity according to claim 8, wherein the motor assembly further comprises a motor mounting disc, the motor is fixed on one surface of the motor mounting disc, and the opposite surface of the motor mounting disc is sealed and blocked on the rear opening and is fixedly connected with the outer side surface of the rear end of the humidity cavity main body.
10. The annular block type friction wear test device with the humidity chamber as claimed in any one of claims 1 to 4, further comprising a front end cover, wherein the front end of the humidity chamber main body is further provided with a front opening, and the front end cover is sealed in the front opening.
11. The annular block type friction wear test device with the humidity chamber as claimed in claim 10, wherein the front end cover and the humidity chamber main body are both made of polymethyl methacrylate material.
12. The annular block type friction wear test device with humidity chamber according to any one of claims 1 to 4, further comprising a block holder installed on the humidity chamber body to restrain the front and rear ends of the test block.
13. The annular block type friction wear test device with the humidity chamber as claimed in any one of claims 1 to 4, wherein a humidity sensor mounting hole is formed on the humidity chamber main body, and the humidity sensor is mounted in the humidity sensor mounting hole.
14. The annular block type friction wear test device with the humidity chamber as claimed in any one of claims 1 to 4, wherein the humidity chamber body is provided with a threaded hole for connecting a humidity generator.
15. The annular block type friction wear test device with the humidity chamber is characterized in that the drainage device comprises a screw hole arranged at the bottom of the humidity chamber main body and a screw matched and connected with the screw hole.
16. The annular block type friction wear test device with the humidity chamber according to any one of claims 1 to 4, wherein the inner peripheral surface of the humidity chamber is a circular arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910681515.5A CN110426304B (en) | 2019-07-26 | 2019-07-26 | Ring block type friction wear test device with humidity cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910681515.5A CN110426304B (en) | 2019-07-26 | 2019-07-26 | Ring block type friction wear test device with humidity cavity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110426304A CN110426304A (en) | 2019-11-08 |
| CN110426304B true CN110426304B (en) | 2021-04-09 |
Family
ID=68412586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910681515.5A Expired - Fee Related CN110426304B (en) | 2019-07-26 | 2019-07-26 | Ring block type friction wear test device with humidity cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110426304B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237041A (en) * | 2014-09-28 | 2014-12-24 | 中国矿业大学 | Friction and wear testing machine with controllable humidity |
| CN103604710B (en) * | 2013-06-23 | 2016-03-23 | 合肥工业大学 | A kind of desk-top ring block friction and wear tester |
| CN107101902A (en) * | 2017-05-17 | 2017-08-29 | 上海交通大学 | A kind of fine motion frictional testing machine |
| CN108318364A (en) * | 2018-05-15 | 2018-07-24 | 许昌学院 | A kind of high temperature and high speed pin disk frictional testing machine that humidity is controllable |
| CN208607134U (en) * | 2018-02-04 | 2019-03-15 | 吉林工程技术师范学院 | Metal material coefficient of friction detection device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102033060B (en) * | 2010-09-27 | 2012-12-26 | 清华大学 | Device for regulating test atmosphere of microscope Raman spectrometer |
| CN104155199B (en) * | 2014-08-25 | 2016-04-06 | 西南科技大学 | A kind of special atmosphere flexible encapsulated on reciprocating friction abrasion tester and control device |
-
2019
- 2019-07-26 CN CN201910681515.5A patent/CN110426304B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604710B (en) * | 2013-06-23 | 2016-03-23 | 合肥工业大学 | A kind of desk-top ring block friction and wear tester |
| CN104237041A (en) * | 2014-09-28 | 2014-12-24 | 中国矿业大学 | Friction and wear testing machine with controllable humidity |
| CN107101902A (en) * | 2017-05-17 | 2017-08-29 | 上海交通大学 | A kind of fine motion frictional testing machine |
| CN208607134U (en) * | 2018-02-04 | 2019-03-15 | 吉林工程技术师范学院 | Metal material coefficient of friction detection device |
| CN108318364A (en) * | 2018-05-15 | 2018-07-24 | 许昌学院 | A kind of high temperature and high speed pin disk frictional testing machine that humidity is controllable |
Non-Patent Citations (2)
| Title |
|---|
| 环_块摩擦磨损试验机设计研究;焦健;《产品与技术》;20111231;第93-95页 * |
| 磨损间隙调整式环块摩擦试验机的研制;庞丹;《润滑与密封》;20170930;第103-107页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110426304A (en) | 2019-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206656006U (en) | A kind of electric valve actuator | |
| CN110426304B (en) | Ring block type friction wear test device with humidity cavity | |
| CN203720128U (en) | Protective structure for humidity sensor | |
| CN110426303B (en) | Humidity chamber device for linear reciprocating type friction wear test | |
| CN110618049B (en) | Humidity chamber device for rotary friction wear test | |
| CN209014191U (en) | Power plant air-introduced machine inlet flue gas pressure sampling apparatus | |
| CN201804006U (en) | Clamping device for clamping enzyme labeling plate in chemiluminescence immunoassay instrument and dark box for chemiluminescence immunoassay instrument | |
| CN210221277U (en) | Handheld vibration measuring instrument with waterproof function | |
| CN213022089U (en) | Fuel oil steam pressure sensor convenient to disassemble | |
| CN109211466A (en) | A kind of waterproof and dampproof formula pressure gauge | |
| CN214250857U (en) | Reservoir dam deformation monitoring device | |
| CN207007704U (en) | A kind of ultraviolet-uisible spectrophotometer | |
| CN210154677U (en) | Precise electronic balance | |
| CN208672150U (en) | A kind of high leakproofness infrared temperature measurement window | |
| CN111289051A (en) | Dampproofing structure of water gauge | |
| CN220454747U (en) | Dampproof pressure gauge | |
| CN101968392B (en) | High-pressure isolation device for pressure transmitter | |
| CN220819915U (en) | Sludge concentration monitoring device | |
| CN102279260A (en) | Clamping device for clamping ELISA (Enzyme-Linked Immuno Sorbent Assay) plate in chemoluminescence immunoassay instrument | |
| CN107168385A (en) | A kind of electric pushrod | |
| CN219551610U (en) | Ultrasonic flowmeter with protective structure | |
| CN219737468U (en) | Tester for volatile organic compounds in water | |
| CN216207240U (en) | Automatic instrument calibration device with limit structure | |
| CN210949931U (en) | High strength glass thermometer manometer convenient to it is fixed | |
| CN210215328U (en) | Multifunctional anti-corrosion convenient and fast mobile PCR instrument |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |