CN209296505U - A kind of width temperature range automatic adjusument multifunction friction wear testing machine - Google Patents
A kind of width temperature range automatic adjusument multifunction friction wear testing machine Download PDFInfo
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- CN209296505U CN209296505U CN201821867095.7U CN201821867095U CN209296505U CN 209296505 U CN209296505 U CN 209296505U CN 201821867095 U CN201821867095 U CN 201821867095U CN 209296505 U CN209296505 U CN 209296505U
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Abstract
The utility model discloses a kind of wide temperature range automatic adjusument multifunction friction wear testing machines, it is related to friction wear testing machine technical field, meets the requirement that friction wear testing machine carries out friction and wear test under the wide temperature range environment of low temperature, room temperature and high temperature to sample.Wide temperature range automatic adjusument multifunction friction wear testing machine, including testing cavity, the rotating disc and liquid nitrogen cavity being oppositely arranged are equipped in the test cavity body, the face of rotating disc described in the liquid nitrogen cavity face is equipped with heating tooling, the heating tooling outer wall is arranged with heating coil, is detachably connected test fixture on the face of rotating disc described in the heating tooling face.
Description
Technical field
The utility model relates to friction wear testing machine technical field more particularly to a kind of more function of wide temperature range automatic adjusument
It can friction wear testing machine.
Background technique
There are many friction wear testing machine type at present, especially with the continuous maturation of nanometer technique, micro-nano friction mill
Damage testing machine also emerges one after another.Environment temperature locating for most of fretting wear workpiece is not low, and friction meeting heat, rubs in addition
It wipes secondary temperature and is generally all higher than room temperature.However, some special operation conditions, such as the outer space, cryonetic wind tunnel, work locating for friction pair
Environment temperature is all very low, and the secondary relative sliding velocity of friction is not high, and the frictional heat of generation is limited.It rubs in the entire duty cycle
Wiping secondary temperature all can be below room temperature.
It is for current ambient temperature and relatively more higher than the friction wear testing machine of room temperature, and low temperature testing machine is considerably less, this hair
It is bright to devise a kind of wide temperature range automatic adjusument multifunction friction wear test that low temperature, room temperature to hot environment may be implemented
Machine.
Utility model content
The purpose of the utility model is to provide a kind of wide temperature range automatic adjusument multifunction friction wear testing machines, meet
Friction wear testing machine carries out the requirement of friction and wear test under the wide temperature range environment of low temperature, room temperature and high temperature to sample.
The above-mentioned purpose of the utility model has the technical scheme that
A kind of width temperature range automatic adjusument multifunction friction wear testing machine, including cavity is tested, in the test cavity body
Equipped with the rotating disc and liquid nitrogen cavity being oppositely arranged, the face of rotating disc described in the liquid nitrogen cavity face is equipped with heating tooling,
The heating tooling outer wall is arranged with heating coil, is detachably connected test on the face of rotating disc described in the heating tooling face
Fixture.
By using above-mentioned technical proposal, sample is pressed on heater and loaded by test fixture, when need to sample carry out
When cooling, liquid nitrogen is poured into liquid nitrogen cavity, since heating tooling is connect with liquid nitrogen cavity, to make the heat of sample by adding
Thermal technology's dress and liquid nitrogen cavity are conducted to liquid nitrogen, realize the cooling of sample.When needing to heat sample, pass through heating coil
Row heating is put into heater, to heat to sample.
Further, in a ring, the side of the test fixture towards heating tooling is equipped with for supporting the test fixture
The annular groove of sample is connect, the mounting hole through its upper and lower surface is circumferentially provided on the test fixture, the heater is loaded onto
Offer the installation screw thread being aligned with the mounting hole.
By using above-mentioned technical proposal, the fixed form of sample is as follows: sample being abutted in a ring groove, sample is made
Be close to another side with annular groove bottom on one side and after heater loads patch, mounting hole is passed through by bolt and installation screw thread screw with
Sample and heating tooling are compressed.
Further, the test cavity upper end opening is equipped with the upper end cover to match, and the liquid nitrogen cavity is set on described
On end cap, the liquid nitrogen cavity upper end opening is equipped with associated liquid nitrogen chamber end cap, is equipped with and stretches on the liquid nitrogen chamber end cap
Enter the intracorporal liquid nitrogen level monitoring meter of the liquid nitrogen chamber, liquid nitrogen injection pipe and liquid nitrogen overflow pipe.
By using above-mentioned technical proposal, liquid nitrogen is injected into liquid nitrogen cavity by liquid nitrogen injection pipe, while passing through liquid nitrogen
Level monitoring meter monitoring liquid level stops the injection of liquid nitrogen after liquid nitrogen level reaches a threshold value.It is lost when liquid nitrogen level monitors meter
When clever, extra liquid nitrogen can be made to flow out, then stop not fliud flushing nitrogen by liquid nitrogen overflow pipe.
Further, the top of the upper end cover is equipped with acoustic emission sensor.
By using above-mentioned technical proposal, the setting of acoustic emission sensor can pass through the fretting wear of sonic detection sample
Situation.
Further, the rotating disc includes disk body and cantilever, and the disk body edge is equipped with attachment base, and the cantilever is along disk
Body diametrical direction is suspended on above the rotating disc and one end is connect with the attachment base, and the cantilever deviates from the face of the disk body
On using the disk body center of circle as boundary offer multiple key seats far from a lateral edge jib-length direction of attachment base, be inserted on the key seat
Pin shaft, axially penetrates through on the cantilever along disk body and adjusts screw thread equipped with pressure, and the pressure adjusts and is threaded with pressure on screw thread
Power adjusts bolt, and the bottom of the pressure regulating bolt and the disk body contradict.
By using above-mentioned technical proposal, pin shaft is plugged on key seat, before friction-wear test, the upper end of pin shaft with
Sample contradicts, and needs to adjust pin shaft to the pressure of sample.Bolt is adjusted by rotational pressure, so that adjusting pressure adjusts spiral shell
Active force between bolt and disk body makes the fine motion upward or downward of the one end of cantilever far from attachment base, Jin Erwei according to lever principle
Adjust pin shaft to the pressure of sample.Since key seat is provided with multiple, power of multiple key seats apart from disk body axle center along jib-length direction
Square is different, and at the same pressure, pin shaft is plugged on closer at a distance from axle center on key seat pressure regulating bolt, and pin shaft is to sample
Pressure it is smaller, pin shaft is smaller to the relative velocity of sample.
Further, the key seat bottom is provided with first through hole through cantilever, is equipped with first in the first through hole
Pressure sensor, the two lateral edge key seat axial direction of inner wall of the key seat are symmetrically arranged that there are two through the second logical of cantilever
Hole, second pressure sensor is equipped on second through-hole, and the disk body is equipped with and connect with first pressure sensor conducting wire
First pressure signal sending end and the second pressure signal sending end that connect with second pressure sensor conductor it is sub.
By using above-mentioned technical proposal, first pressure sensor can detect the pressure at right angle to it of pin shaft, then lead to
It crosses pressure at right angle and subtracts the pressure that the Gravity calculation of pin shaft itself obtains pin shaft to sample, when pin shaft circumferentially rotates, in key seat
Two diagonal second pressure sensors horizontal pressure force different by direction respectively, by calculating two horizontal pressure force differences
Take absolute value the frictional force of available pin shaft and sample.
Further, the attachment base is equipped with infrared detector towards the side of the test fixture.
By using above-mentioned technical proposal, the temperature that sample can be detected is arranged towards sample for infrared detector.
Further, the test cavity bottom is connected with motor mounting rack, and the motor mounting rack bottom is equipped with
The motor shaft of motor, the motor passes through the motor mounting rack, and the disk body bottom is axially arranged with rotary shaft, the motor
Axis and the rotation axis connection.
By using above-mentioned technical proposal, the rotary shaft of the motor shaft connection disk body of motor, to drive disk body to rotate.
Further, axial thread is connected with bearing block above the motor mounting rack, is connected in the bearing block
Thrust bearing, rotary shaft are passed through and are fixed on the thrust bearing, and the bearing block opening is equipped with step groove, the thrust
Bearing outer wall radial protrusion has the bulge loop with step groove cooperation.
By using above-mentioned technical proposal, the bearing block being threaded on electric machine support is rotated, makes bearing block in axial direction
Direction moves up and down, and then moves up and down the thrust bearing in bearing block, and the disk body in rotary shaft is driven to move up and down, to adjust
Pressure of the whole disk body upper pin to sample, the coarse adjustment for being adjusted to act on pin shaft sample pressure of rolling bearing seat.
Further, the test chamber outer wall radial symmetric is set there are two vacuumizing ring flange.
By using above-mentioned technical proposal, two sides vacuumize ring flange while vacuumizing, and vacuumize test cavity more
Thoroughly, test inside cavity vacuum can prevent cross-ventilation, realize low temperature environment.
In conclusion the utility model has the following beneficial effects:
One, by liquid nitrogen cavity, cold temperature source is provided to test；
Two, by heating tooling, high temperature source is provided to test；
Three, by vacuumizing prevention convection current, low temperature environment is realized；
Four, analysis is monitored to the secondary process of friction and wear that rubs using sound emission monitoring technology；
Five, heat is generated to friction process by thermocouple and infrared imagery technique to be monitored；
Six, apply pressure to be finely adjusted by screw thread coarse adjustment and lever principle.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model embodiment；
Fig. 2 is the structural schematic diagram that the utility model embodiment hides test cavity；
Fig. 3 is the Structure explosion diagrams such as the utility model embodiment liquid nitrogen cavity, heating tooling, test fixture；
Fig. 4 is the isostructural partial sectional view of the utility model embodiment disk body and explosive view；
Fig. 5 is the enlarged drawing in the portion A in Fig. 4；
Fig. 6 is the schematic diagram for calculating pressure and frictional force that sample is subject to；
Fig. 7 is the bottom schematic view of disk body；
Fig. 8 is the isostructural explosive view of motor mounting rack；
Fig. 9 is the enlarged drawing in the portion B in Fig. 8.
Appended drawing reference: 1, cavity is tested；2, rotating disc；3, liquid nitrogen cavity；31, liquid nitrogen chamber end cap；32, liquid nitrogen level monitors
Meter；33, liquid nitrogen injection pipe；34, liquid nitrogen overflow pipe；201, disk body；202, cantilever；203, attachment base；204, key seat；205, it sells
Axis；206, pressure adjusts screw thread；207, pressure regulating bolt；208, first through hole；209, the second through-hole；210, rotary shaft；
211, slot；212, keyway；4, tooling is heated；41, heating coil；5, test fixture；51, annular groove；52, mounting hole；6, on
End cap；7, acoustic emission sensor；8, first pressure sensor；81, first pressure signal sending end；9, second pressure senses
Device；91, second pressure signal sending end；10, infrared detector；11, motor mounting rack；12, motor；121, motor
Axis；122, key block；13, bearing block；131, step groove；14, thrust bearing；141, bulge loop；15, ring flange is vacuumized；16, power supply
Connector；17, clinching；18, washer；19, operation port.
Specific embodiment
Below in conjunction with attached drawing, the technical solution of the utility model embodiment is described.
A kind of width temperature range automatic adjusument multifunction friction wear testing machine, as shown in Figure 1, the lower section of test cavity 1 connects
Motor mounting rack 11 is connect, the upper end opening of test cavity 1 is equipped with upper end cover 6, and upper end cover 6 is upper with test cavity 1
End is fastened by clinching 17.The two sides of test cavity 1 have been symmetrically arranged an operation port 19, operate on test cavity 1
The two sides of mouth 19 are symmetrically arranged one and vacuumize ring flange 15 with what test cavity 1 communicated.Test the side wall of cavity 1 also
It is provided with power connection 16.The top of upper end cover 6 is equipped with acoustic emission sensor 7, and the setting of acoustic emission sensor 7 can pass through sound
The fretting wear situation of wave detection sample.
As shown in Fig. 2, liquid nitrogen cavity 3 and rotating disc 2 are oppositely arranged.
It is set on end cap 6 as shown in figure 3, liquid nitrogen cavity 3 is recessed, 3 upper end opening of liquid nitrogen cavity is combined with liquid nitrogen chamber end
Lid 31, liquid nitrogen chamber end cap 31 are threadedly coupled with liquid nitrogen cavity 3.It is equipped on liquid nitrogen chamber end cap 31 and protrudes into the intracorporal liquid nitrogen of institute's nitrogen chamber
Level monitoring meter 32, liquid nitrogen injection pipe 33 and liquid nitrogen overflow pipe 34.Liquid nitrogen level monitoring meter 32 is connect with computer, liquid nitrogen note
Enter pipe 33 and connect equipment for injecting liquid nitrogen, liquid nitrogen cavity 3 injects during liquid nitrogen, when liquid nitrogen level monitoring meter 32 detects
When liquid level reaches limit value, the equipment of computer control input liquid nitrogen stops.Liquid nitrogen overflow pipe 34 can be when liquid nitrogen injects overfill, will
Extra liquid nitrogen discharge.In an embodiment of the present invention, liquid nitrogen level monitoring meter 32 uses metal floating ball lever meter.
As shown in figure 3, the bottom of liquid nitrogen cavity 3 is connected with heating tooling 4, heating tooling 4 is in disk form, in heating tooling
4 peripheral wall is arranged with heating coil 41.Joint face in the bottom surface of heating tooling 4, i.e., away from heating tooling 4 and liquid nitrogen cavity 3
One side, be removably connected with test fixture 5.In a ring, the side of test fixture 5 towards heating tooling 4 is equipped with test fixture 5
For abutting the annular groove 51 of sample, circumferentially it is provided with outside annular groove 51 on test fixture 5 multiple through its upper and lower surface
Mounting hole 52,3 bottom surface of liquid nitrogen cavity circumferentially offer multiple installation threaded holes being aligned with mounting hole 52 along its edge.Sample
Fixed form is as follows: sample being connected in annular groove 51, the one side of sample is made to be close to another side with 51 bottom surface of annular groove and add
After thermal technology fills 4 abuttings, mounting hole 52 is passed through by bolt and is screwed with installation screw thread to compress sample and heating tooling 4.Sample
After need to being fixed on test fixture 5, it need to will not be rotated because of frictional force during friction-wear test.
As shown in figure 4, being rotating disc 2 below test fixture 5, rotating disc 2 includes that rotating disc 2 includes disk body 201, cantilever
202 and rotary shaft 210, rotary shaft 210 is arranged in 201 1 lateral edge disk body of disk body, 201 axis direction.201 edge of disk body, which is equipped with, to be connected
Joint chair 203, cantilever 202 is suspended on above rotating disc 2 along 201 diametrical direction of disk body and one end is connect with attachment base 203, cantilever
202 open up using 201 center of circle of disk body as boundary far from 202 length direction of a lateral edge cantilever of attachment base 203 on the face of disk body 201
There are multiple key seats 204, pin shaft 205 is inserted on key seat 204, pin shaft 205 can be plugged in as needed in any key seat 204, hanged
It is axially penetrated through on arm 202 along disk body 201 and adjusts screw thread 206 equipped with pressure, pressure adjusts and is threaded with pressure tune on screw thread 206
Bolt 207 is saved, the bottom of pressure regulating bolt 207 and disk body 201 contradict.Pin shaft 205 is plugged on key seat 204, is ground in friction
Before damage test, the upper end of pin shaft 205 and sample are contradicted, and need to adjust pin shaft 205 to the pressure of sample.It is pressed by rotation
Power adjusts bolt 207, according to lever principle, to be made to hang to adjust the active force between pressure regulating bolt 207 and disk body 201
The fine motion upward or downward of the one end of arm 202 far from attachment base 203, and then pin shaft 205 is finely tuned to the pressure of sample.Due to key seat
204 are provided with multiple, torque difference of multiple key seats 204 apart from 201 axle center of disk body, pressure adjusting along 202 length direction of cantilever
At the same pressure, pin shaft 205 is plugged on closer at a distance from axle center on key seat 204 bolt 207, and pin shaft 205 is to sample
Pressure is smaller, and pin shaft 205 is smaller to the relative velocity of sample.The side of attachment base 203 towards test fixture 5 is also equipped with infrared
Line detector 10 obtains the Infrared Thermogram of sample rubbing surface, by infrared detector 10 to obtain the temperature of rubbing surface.
As shown in figure 5,204 bottom of key seat is provided with first through hole 208 through cantilever 202, it is equipped in first through hole 208
First pressure sensor 8, two lateral edge key seat of inner wall, 204 axial direction of key seat 204 are symmetrically arranged that there are two through cantilever
202 the second through-hole 209 is equipped with second pressure sensor 9 on second through-hole 209.First pressure sensor 8 can detect pin shaft
Then 205 pressure at right angle to it obtains 205 pairs of pin shaft examinations by the Gravity calculation that pressure at right angle subtracts pin shaft 205 itself
The pressure of sample, when pin shaft 205 circumferentially rotates, two second pressure sensors 9 of 204 inner opposite angle of key seat respectively by direction not
Same horizontal pressure force, by the frictional force that two horizontal pressure force differences are calculated to take absolute value available pin shaft 205 and sample.Such as
Shown in Fig. 6, Fn=F1-G, frictional force f, horizontal pressure force F2 and F3, f=| F1-F2 |.The frictional force f and pressure being subject to by sample
The ratio of Fn obtains coefficient of friction u, u=f/Fn.Since disk body 201 is can not to send data by wired in rotation, because
This is needed by wirelessly being transmitted, and disk body 201 is equipped with the first pressure signal hair connecting with 8 conducting wire of first pressure sensor
Sending end 81 and second pressure signal sending end 91 being connect with 9 conducting wire of second pressure sensor.
As shown in figure 8,11 bottom of motor mounting rack is equipped with motor 12,12 axis of motor of motor 12 passes through motor installation branch
Frame 11,12 axis of motor and rotary shaft 210 are connected and inserted into rotary shaft 210.As shown in fig. 7, axially being offered in rotary shaft 210
Jack, is provided with keyway 212 on jack, it is corresponding in 12 axis of motor integrally formed with the key block 122 matched with keyway 212.
In 11 upper surface of motor mounting rack, be connected with bearing block 13 around 12 axis axial thread of motor, bearing do in thrust is installed
Bearing 14, rotary shaft 210 pass through and are fixed on thrust bearing 14 rear and 12 axis connection of motor.As shown in figure 9, bearing block 13 is opened
Step groove 131 is equipped at mouthful, 13 outer wall radial protrusion of bearing block has the bulge loop 141 cooperated with step groove 131.Rotation is threadedly coupled
Bearing block 13 on 12 bracket of motor makes the lower movement in the axial direction of bearing block 13, and then makes the thrust in bearing block 13
Bearing 14 moves up and down, and drives the disk body 201 in rotary shaft 210 to move up and down, to adjust 201 upper pin 205 of disk body to sample
Pressure, the coarse adjustment for being adjusted to act on pin shaft 205 sample pressure of rolling bearing seat 13.
As shown in figure 8, washer 18 is provided between motor mounting rack 11 and the joint face for testing cavity 1, to improve examination
Test the leakproofness of machine.
Operating process: guarantee that clinching 17 fastens upper end cover 6 and test cavity 1, opening operation mouth 19 passes through test fixture
5 by sample heating tooling 4 on.According to the needs of pressure and revolving speed to sample, pin shaft 205 is inserted into suitable key seat 204
In, pressure is observed in computer, and first 13 coarse adjustment of bearing block of rotating base, then rotation adjusts bolt fine tuning, to realize
Accurate adjustment to pressure.After pressure adjusts, shutoff operation mouth 19.According to temperature needs, select to inject to liquid nitrogen cavity 3
Liquid nitrogen is cooling or gives 41 electrified regulation of heating coil, starts motor 12 after adjusting 12 revolving speed of motor finally by computer, carries out
Test.
Claims (10)
1. a kind of width temperature range automatic adjusument multifunction friction wear testing machine, it is characterized in that: include test cavity (1), it is described
It is equipped with the rotating disc (2) and liquid nitrogen cavity (3) being oppositely arranged in test cavity (1), is rotated described in liquid nitrogen cavity (3) face
The face of disk (2) is equipped with heating tooling (4), and heating tooling (4) outer wall is arranged with heating coil (41), the heating tooling
(4) test fixture (5) are detachably connected on the face of rotating disc described in face (2).
2. a kind of wide temperature range automatic adjusument multifunction friction wear testing machine according to claim 1, the test clamp
Having (5) in a ring, the test fixture (5) is equipped with the annular groove (51) for abutting sample towards the side of heating tooling (4),
It is circumferentially provided with the mounting hole (52) through its upper and lower surface on the test fixture (5), is offered on the heating tooling (4)
The installation screw thread being aligned with the mounting hole (52).
3. a kind of wide temperature range automatic adjusument multifunction friction wear testing machine according to claim 1, it is characterized in that: institute
It states test cavity (1) upper end opening and is equipped with the upper end cover (6) to match, the liquid nitrogen cavity (3) is set on the upper end cover (6),
Liquid nitrogen cavity (3) upper end opening is equipped with associated liquid nitrogen chamber end cap (31), wears on the liquid nitrogen chamber end cap (31)
There are the liquid nitrogen level protruded into the liquid nitrogen cavity (3) monitoring meter (32), liquid nitrogen injection pipe (33) and liquid nitrogen overflow pipe (34).
4. a kind of wide temperature range automatic adjusument multifunction friction wear testing machine according to claim 3, it is characterized in that: institute
The top for stating upper end cover (6) is equipped with acoustic emission sensor (7).
5. a kind of wide temperature range automatic adjusument multifunction friction wear testing machine according to claim 1, it is characterized in that: institute
Stating rotating disc (2) includes disk body (201) and cantilever (202), and disk body (201) edge is equipped with attachment base (203), the cantilever
(202) it is suspended on above the rotating disc (2) along disk body (201) diametrical direction and one end is connect with the attachment base (203), institute
State the lateral edge of cantilever (202) on the face of the disk body (201) using disk body (201) center of circle as boundary far from attachment base (203)
Cantilever (202) length direction offers multiple key seats (204), is inserted with pin shaft (205), the cantilever on the key seat (204)
(202) it is axially penetrated through on along disk body (201) and adjusts screw thread (206) equipped with pressure, the pressure adjusts screw thread on screw thread (206) and connects
It is connected to pressure regulating bolt (207), the bottom and the disk body (201) of the pressure regulating bolt (207) contradict.
6. a kind of wide temperature range automatic adjusument multifunction friction wear testing machine according to claim 5, it is characterized in that: institute
It states key seat (204) bottom to be provided with first through hole (208) through cantilever (202), is equipped with first on the first through hole (208)
Pressure sensor (8), inner wall two lateral edge key seat (204) axial direction of the key seat (204) are symmetrically arranged there are two passing through
The second through-hole (209) of cantilever (202) is worn, is equipped with second pressure sensor (9), the disk on second through-hole (209)
Body (201) is equipped with first pressure signal sending end (81) connect with first pressure sensor (8) conducting wire and with second
The second pressure signal sending end of pressure sensor (9) conducting wire connection is sub (91).
7. a kind of wide temperature range automatic adjusument multifunction friction wear testing machine according to claim 5, it is characterized in that: institute
It states attachment base (203) and is equipped with infrared detector (10) towards the side of the test fixture (5).
8. a kind of wide temperature range automatic adjusument multifunction friction wear testing machine according to claim 5, it is characterized in that: institute
Test cavity (1) bottom to be stated to be connected with motor mounting rack (11), motor mounting rack (11) bottom is equipped with motor (12),
Motor (12) axis of the motor (12) passes through the motor mounting rack (11), and disk body (201) bottom is axially arranged with rotation
Shaft (210), motor (12) axis are connect with the rotary shaft (210).
9. a kind of wide temperature range automatic adjusument multifunction friction wear testing machine according to claim 8, it is characterized in that: institute
It states axial thread above motor mounting rack (11) to be connected with bearing block (13), is connected with thrust bearing in the bearing block (13)
(14), rotary shaft (210) is passed through and is fixed on the thrust bearing (14), and bearing block (13) opening is equipped with step groove
(131), thrust bearing (14) the outer wall radial protrusion has the bulge loop (141) with the step groove (131) cooperation.
10. a kind of wide temperature range automatic adjusument multifunction friction wear testing machine according to claim 1, it is characterized in that:
Test cavity (1) the outer wall radial symmetric vacuumizes ring flange (15) there are two setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821867095.7U CN209296505U (en) | 2018-11-13 | 2018-11-13 | A kind of width temperature range automatic adjusument multifunction friction wear testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821867095.7U CN209296505U (en) | 2018-11-13 | 2018-11-13 | A kind of width temperature range automatic adjusument multifunction friction wear testing machine |
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| Publication Number | Publication Date |
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| CN209296505U true CN209296505U (en) | 2019-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821867095.7U Active CN209296505U (en) | 2018-11-13 | 2018-11-13 | A kind of width temperature range automatic adjusument multifunction friction wear testing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297848A (en) * | 2018-11-13 | 2019-02-01 | 四川日机密封件股份有限公司 | A kind of width temperature range automatic adjusument multifunction friction wear testing machine |
-
2018
- 2018-11-13 CN CN201821867095.7U patent/CN209296505U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297848A (en) * | 2018-11-13 | 2019-02-01 | 四川日机密封件股份有限公司 | A kind of width temperature range automatic adjusument multifunction friction wear testing machine |
| CN109297848B (en) * | 2018-11-13 | 2023-12-05 | 中密控股股份有限公司 | Wide temperature range self-adaptive adjustment multifunctional friction and wear testing machine |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610046 No. 8 Wukexi Fourth Road, Wuhou District, Chengdu City, Sichuan Province Patentee after: Zhongmi Holding Co., Ltd Address before: 610046 No. 8 Wukexi Fourth Road, Wuhou District, Chengdu City, Sichuan Province Patentee before: Sichuan Sunny Seal Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |