CN115541266B - Automobile wheel wear resistance detector - Google Patents
Automobile wheel wear resistance detector Download PDFInfo
- Publication number
- CN115541266B CN115541266B CN202211523072.5A CN202211523072A CN115541266B CN 115541266 B CN115541266 B CN 115541266B CN 202211523072 A CN202211523072 A CN 202211523072A CN 115541266 B CN115541266 B CN 115541266B
- Authority
- CN
- China
- Prior art keywords
- seat
- automobile wheel
- mounting
- detection
- movable
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to the technical field of automobile wheel detection, and discloses an automobile wheel wear resistance detector which aims to solve the problem that the existing detector is poor in detection accuracy when detecting the wear resistance of an automobile wheel. When the device is used, the condition of the automobile wheel on the road surface is simulated through the first bulge, after the detection is finished, a detection result can be made through the abrasion condition of the surface of the automobile wheel, the lifting plate can be pushed to move up and down through the first telescopic component, so that the height of the first bulge extending to the top of the detection seat is adjusted, the road surfaces in different uneven states are simulated, the first bulge is flexibly connected with the mounting seat through the flexible mounting component, namely the first bulge can shake under the friction action of the automobile wheel, the movement condition of stones when the automobile wheel runs on the road surface can be truly simulated, and the detection accuracy is improved.
Description
Technical Field
The invention relates to the technical field of automobile wheel detection, in particular to an automobile wheel wear resistance detector.
Background
The automobile tire's wearability is one of its main performance index, and along with the increase of tire degree of wear, the frictional force between tire and the ground is also littleer and more, will influence driving safety when serious, accessible wearability detection device detects the wearability ability of tire in tire production process, and current detection machine has the not good problem of detection accuracy nature when detecting the automobile wheel wearability.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an automobile wheel wear resistance detector.
In order to achieve the purpose, the invention adopts the following technical scheme:
a car wheel wear resistance detector comprises a shell, wherein a movable door is movably mounted on one side of the shell, a rotating seat is movably mounted on the top of the shell, and a car wheel is mounted at the bottom of the rotating seat through a buffering mounting mechanism; the driving component is used for driving the rotating seat to horizontally rotate; the movable seat is movably arranged in the shell, the detection seat is installed on one side, close to the automobile wheels, of the movable seat, and the protruding mechanism is arranged on one side, close to the automobile wheels, of the detection seat and used for simulating the uneven state of a road surface; the detection seat is of a hollow structure, and a through hole is formed in one side, close to the automobile wheel, of the detection seat; the protrusion mechanism comprises a first telescopic component arranged in the detection seat, one end of a piston rod of the first telescopic component is provided with a horizontally arranged lifting plate, and one side of the lifting plate close to the automobile wheel is provided with a mounting seat; one end of the mounting seat extending into the through hole opening is provided with a mounting groove, a flexible mounting part is mounted inside the mounting groove, and a first bulge is mounted at one end of the flexible mounting part extending to the outside of the mounting seat; the pushing mechanism is used for pushing the movable seat and the detection seat to move horizontally; the movable seat is characterized by also comprising a guide groove for supporting and guiding the horizontal movement of the movable seat.
Preferably, the side surface of the flexible installation part is connected with the inner wall of the installation groove through an installation spring.
Preferably, the side surface of the first bulge is provided with a second bulge for simulating fine gravel of a driving road surface.
Preferably, the heat gun is further provided with a hot air blower for blowing hot air into the interior of the detection seat, and the hot air is sprayed to the top of the detection seat through the perforated opening.
Preferably, the bottom of the movable seat is provided with a supporting leg, and one end of the supporting leg, which is far away from the movable seat, extends into the guide groove; the inner wall of the guide groove is provided with a third bulge.
Preferably, the inner wall of the shell is provided with a limiting part for limiting the bump of the movable seat in the vertical direction.
Preferably, one side of the limiting component close to the movable seat is provided with a buffer plate through a spring.
Preferably, the buffering installation mechanism comprises a fixed sleeve arranged at the bottom of the rotating seat, and an extension installation component is arranged in the fixed sleeve through an elastic component; one end of the extending installation component extending to the outside of the fixed sleeve is connected with the side surface of the automobile wheel.
Preferably, the automobile wheel water spray device further comprises a spray component used for spraying water to the top of the detection seat and simulating the driving road condition of the automobile wheel in rainy weather.
Preferably, the pushing mechanism comprises a pushing component arranged in the shell, and a second telescopic component is arranged at one end, close to the movable seat, of a piston rod of the pushing component; the side surface of the second telescopic part is flexibly connected with the end surface of the movable seat.
The invention has the beneficial effects that:
the automobile wheel to be detected is installed on the rotating seat by opening the movable door during use, the bottom of the automobile wheel is in contact with the top of the detection seat, the movable seat and the detection seat are pushed to move horizontally by the pushing mechanism, meanwhile, the first protrusions arranged on the detection seat simulate the uneven state of a road surface, the automobile wheel driving condition on the road surface is simulated by the reciprocating friction of the first protrusions and the automobile wheel, the displacement of the reciprocating horizontal movement of the movable seat is always the mileage number of the automobile, after the detection is completed, the detection result can be made by the abrasion condition of the surface of the automobile wheel, the lifting plate can be pushed to move up and down by the first telescopic component, so that the height of the first protrusions extending to the top of the detection seat is adjusted, the road surface with different uneven states is simulated, the first protrusions are flexibly connected with the installation seat through the flexible installation component, namely the first protrusions can shake when the friction action of the automobile wheel is received, the moving condition of the automobile wheel driving on the road surface can be truly simulated, the detecting accuracy of the detection is improved, the rotating seat and the automobile wheel can be driven to move horizontally by the driving component, the conditions of turning, the detection seat and the maintenance seat can be conveniently replaced.
Drawings
FIG. 1 is a schematic structural diagram of an automobile wheel wear resistance testing machine according to an embodiment of the present invention;
FIG. 2 is a sectional view of an overall side structure of an automobile wheel wear resistance testing machine according to an embodiment of the present invention;
FIG. 3 is a schematic view of a testing seat of an automobile wheel wear tester according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion A of FIG. 3;
fig. 5 is a schematic structural view of a first protrusion and a mounting seat of an automobile wheel wear resistance testing machine according to an embodiment of the present invention.
In the figure: 1-shell, 2-rotating seat, 3-driving part, 4-automobile wheel, 5-buffer installation mechanism, 51-elastic part, 52-fixed sleeve, 53-extension installation part, 6-spraying part, 7-protrusion mechanism, 71-first telescopic part, 72-lifting plate, 73-first protrusion, 74-second protrusion, 75-installation seat, 8-detection seat, 9-perforation, 10-third protrusion, 11-guide groove, 12-support leg, 13-movable seat, 14-limiting part, 15-hot air blower, 16-installation groove, 17-flexible installation part, 18-installation spring, 19-pushing mechanism, 191-second telescopic part, 192-pushing part and 20-buffer plate.
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.
Referring to fig. 1 to 5, an automobile wheel wear resistance detector comprises a shell 1, wherein a movable door is movably mounted on one side of the shell 1, a rotating seat 2 is movably mounted on the top of the shell 1, and an automobile wheel 4 is mounted at the bottom of the rotating seat 2 through a buffering mounting mechanism 5; the device also comprises a driving component 3 which is used for driving the rotating seat 2 to horizontally rotate; a movable seat 13 is movably arranged in the shell 1, a detection seat 8 is arranged on one side of the movable seat 13 close to the automobile wheels 4, and a protrusion mechanism 7 is arranged on one side of the detection seat 8 close to the automobile wheels 4 and used for simulating the uneven state of the road surface; the detection seat 8 is of a hollow structure, and a through hole 9 is formed in one side, close to the automobile wheel 4, of the detection seat 8; the protrusion mechanism 7 comprises a first telescopic part 71 arranged in the detection seat 8, one end of a piston rod of the first telescopic part 71 is provided with a horizontally arranged lifting plate 72, and one side of the lifting plate 72 close to the automobile wheel 4 is provided with a mounting seat 75; one end of the mounting seat 75 extending into the opening of the through hole 9 is provided with a mounting groove 16, a flexible mounting part 17 is mounted inside the mounting groove 16, and one end of the flexible mounting part 17 extending to the outside of the mounting seat 75 is provided with a first protrusion 73; the device also comprises a pushing mechanism 19 which is used for pushing the movable seat 13 and the detection seat 8 to move horizontally; and a guide groove 11 for supporting and guiding the horizontal movement of the movable seat 13.
When the automobile wheel inspection device is used, the movable door is opened to install an automobile wheel 4 to be inspected on the rotating seat 2, the bottom of the automobile wheel 4 is in contact with the top of the inspection seat 8, the movable seat 13 and the inspection seat 8 are pushed to move horizontally by the pushing mechanism 19, meanwhile, the first bulge 73 arranged on the inspection seat 8 simulates the uneven state of the road surface, the driving condition of the automobile wheel 4 on the road surface is simulated by the reciprocating friction of the first bulge 73 and the automobile wheel 4, the displacement of the reciprocating horizontal movement of the movable seat 13 is always the mileage of the automobile, after the inspection is completed, the inspection result can be made by the abrasion condition of the surface of the automobile wheel 4, the lifting plate 72 can be pushed to move up and down by the first telescopic component 71, so that the height of the first bulge 73 extending to the top of the inspection seat 8 is adjusted, the road surfaces in different uneven states are simulated, the first bulge 73 is flexibly connected with the mounting seat 75 by the flexible mounting component 17, namely, the first bulge 73 can shake when the automobile wheel 4 is subjected to the friction action of the automobile wheel 4, the moving condition of the automobile wheel 4 when the stone is driven, the automobile wheel 4 can be truly simulated, the driving component can be changed in the horizontal movement of the inspection seat 2, the inspection seat can be convenient for overhauling, and the inspection seat 8, and the inspection process of the inspection can be convenient for overhauling.
As a preferred embodiment of the present invention, the flexible mounting member 17 is a rubber column, a silica gel column, or the like, and in this embodiment, the flexible mounting member 17 is preferably a rubber column.
As a preferred embodiment of the present invention, the side surface of the flexible installation member 17 is connected to the inner wall of the installation groove 16 by the installation spring 18, and the installation spring 18 buffers and restores the movement of the first projection 73 when the first projection 73 rubs against the wheel 4.
As a preferred embodiment of the present invention, the first protrusions 73 are provided at the sides thereof with second protrusions 74 for simulating fine gravel of a driving road surface.
In a preferred embodiment of the present invention, the thermal wind generator 15 is further included for blowing hot air into the interior of the test seat 8, the hot air is sprayed to the top of the test seat 8 through the openings of the perforations 9, so as to simulate the use condition of the automobile wheel 4 in a high-temperature environment, and the sprayed hot air can quickly simulate the high-temperature environment.
As a preferred embodiment of the present invention, a supporting leg 12 is installed at the bottom of the movable seat 13, and one end of the supporting leg 12 far away from the movable seat 13 extends to the inside of the guide groove 11; the inner wall of guide way 11 is provided with third arch 10, supporting leg 12 is along with the in-process of sliding seat 13 horizontal migration, third arch 10 pushes up the removal of supporting leg 12, make supporting leg 12 take place the irregular removal of horizontal direction and vertical direction, and then drive sliding seat 13 and carry out the in-process of horizontal migration under pushing mechanism 19's the impetus, still can produce the condition of jolting of horizontal direction and vertical direction, improve the authenticity of the condition of traveling of simulation automobile wheel 4, improve and detect the precision.
As a preferred embodiment of the present invention, a limiting member 14 is installed on the inner wall of the housing 1 for limiting the vertical bumping of the movable seat 13.
As a preferred embodiment of the invention, a buffer plate 20 is arranged on one side of the limit part 14 close to the movable seat 13 through a spring, so that the movable seat 13 is prevented from hard collision with the limit part 14, the top of the movable seat 13 is pressed, and the support legs 12 are ensured to be always positioned in the guide groove 11.
As a preferred embodiment of the present invention, the buffer mounting mechanism 5 comprises a fixing sleeve 52 mounted at the bottom of the rotating base 2, and an extension mounting member 53 is mounted inside the fixing sleeve 52 through an elastic member 51; one end of the extending installation part 53 extending to the outside of the fixing sleeve 52 is connected with the side surface of the automobile wheel 4, and when the automobile shock absorber is used, the elastic part 51 cushions the automobile wheel 4, so that the action effect of the automobile shock absorber is simulated.
As a preferred embodiment of the present invention, it further comprises a spraying part 6 for spraying water to the top of the detection seat 8 to simulate the driving road condition of the vehicle wheel 4 in rainy weather.
As a preferred embodiment of the present invention, the pushing mechanism 19 includes a pushing member 192 installed in the housing 1, and a second telescopic member 191 is installed at one end of a piston rod of the pushing member 192 near the movable seat 13; the side surface of the second telescopic member 191 is flexibly connected with the end surface of the movable seat 13, and the second telescopic member 191 can be pushed by the pushing member 192 to drive the movable seat 13 to reciprocate horizontally.
As a preferred embodiment of the present invention, the second telescopic member 191 is an electric telescopic rod, a hydraulic cylinder, or the like, and in this embodiment, the second telescopic member 191 is a preferred electric telescopic rod.
As a preferred embodiment of the present invention, the first extensible member 71 is an electric extensible rod, a hydraulic cylinder, or the like, and in this embodiment, the first extensible member 71 is a preferred electric extensible rod.
When the automobile wheel inspection device is used, the movable door is opened to install an automobile wheel 4 to be inspected on the rotating seat 2, the bottom of the automobile wheel 4 is in contact with the top of the inspection seat 8, the movable seat 13 and the inspection seat 8 are pushed to move horizontally by the pushing mechanism 19, meanwhile, the first bulge 73 arranged on the inspection seat 8 simulates the uneven state of the road surface, the driving condition of the automobile wheel 4 on the road surface is simulated by the reciprocating friction of the first bulge 73 and the automobile wheel 4, the reciprocating horizontal movement displacement of the movable seat 13 is always the mileage number of the automobile, after the inspection is finished, the inspection result can be made by the abrasion condition of the surface of the automobile wheel 4, the lifting plate 72 can be pushed to move up and down by the first telescopic component 71, so that the height of the first bulge 73 extending to the top of the inspection seat 8 is adjusted, the road surfaces in different uneven states are simulated, the first bulge 73 is flexibly connected with the mounting seat 75 by the flexible mounting component 17, namely, the first bulge 73 can shake when being subjected to the friction action of the automobile wheel 4, the moving condition of the automobile wheel 4 when the automobile wheel 4 runs on the road surface can be truly simulated, the accurate inspection of the rotating seat, the driving component 3, the driving seat 4 can be conveniently replaced, the inspection seat can be convenient, and the inspection seat 8, and the inspection process of the inspection can be convenient, and the maintenance of the head can be convenient; in the process that the supporting legs 12 horizontally move along with the movable seat 13, the third protrusions 10 push the supporting legs 12 to move, so that the supporting legs 12 irregularly move in the horizontal direction and the vertical direction, further, the movable seat 13 is driven to horizontally move under the pushing action of the pushing mechanism 19, the bumping conditions in the horizontal direction and the vertical direction can be generated, the authenticity of the driving condition of the automobile wheel 4 is improved, and the detection precision is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A car wheel wear resistance detector comprises a shell, wherein a movable door is movably arranged on one side of the shell, and is characterized in that a rotating seat is movably arranged on the top of the shell, and a car wheel is arranged at the bottom of the rotating seat through a buffering mounting mechanism;
the driving component is used for driving the rotating seat to horizontally rotate;
the movable seat is movably arranged in the shell, the detection seat is installed on one side, close to the automobile wheels, of the movable seat, and the protrusion mechanism is arranged on one side, close to the automobile wheels, of the detection seat and used for simulating the uneven state of the road surface;
the detection seat is of a hollow structure, and a through hole is formed in one side, close to the automobile wheel, of the detection seat;
the protrusion mechanism comprises a first telescopic component arranged in the detection seat, one end of a piston rod of the first telescopic component is provided with a lifting plate which is horizontally arranged, and one side of the lifting plate, which is close to the automobile wheel, is provided with a mounting seat;
one end of the mounting seat extending into the through hole opening is provided with a mounting groove, a flexible mounting part is mounted inside the mounting groove, and a first bulge is mounted at one end of the flexible mounting part extending to the outside of the mounting seat;
the pushing mechanism is used for pushing the movable seat and the detection seat to move horizontally;
the support device also comprises a guide groove used for supporting and guiding the horizontal movement of the movable seat, wherein the bottom of the movable seat is provided with a support leg, and one end of the support leg, which is far away from the movable seat, extends into the guide groove; the inner wall of guide way is provided with the third arch, spacing part is installed to the inner wall of casing for jolt to the sliding seat vertical direction and carry on spacingly, there is the buffer board one side that spacing part is close to the sliding seat through the spring mounting.
2. The apparatus of claim 1, wherein the flexible mounting member is connected to the inner wall of the mounting groove by a mounting spring.
3. The apparatus of claim 1, wherein the first protrusion is provided at a side thereof with a second protrusion for simulating fine gravel on a driving road.
4. The apparatus of claim 1, further comprising a hot air blower for blowing hot air into the interior of the test seat, wherein the hot air is blown to the top of the test seat through the perforated opening.
5. The apparatus of claim 1, wherein the buffer mounting means comprises a fixing sleeve mounted at the bottom of the rotating base, and an extension mounting member is mounted inside the fixing sleeve through an elastic member;
one end of the extending installation component extending to the outside of the fixed sleeve is connected with the side surface of the automobile wheel.
6. The apparatus of claim 1, further comprising a spraying part for spraying water to the top of the test seat to simulate a driving condition of the wheel in a rainy weather.
7. The apparatus of claim 1, wherein the pushing mechanism comprises a pushing member installed in the housing, and a second telescopic member is installed at one end of a piston rod of the pushing member near the movable seat;
the side surface of the second telescopic part is flexibly connected with the end surface of the movable seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211523072.5A CN115541266B (en) | 2022-12-01 | 2022-12-01 | Automobile wheel wear resistance detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211523072.5A CN115541266B (en) | 2022-12-01 | 2022-12-01 | Automobile wheel wear resistance detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115541266A CN115541266A (en) | 2022-12-30 |
| CN115541266B true CN115541266B (en) | 2023-03-21 |
Family
ID=84721989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211523072.5A Active CN115541266B (en) | 2022-12-01 | 2022-12-01 | Automobile wheel wear resistance detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115541266B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296969A (en) * | 2023-05-22 | 2023-06-23 | 江苏锦汇高分子科技有限公司 | Synchronous belt wear resistance tester |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470488A (en) * | 2018-09-29 | 2019-03-15 | 陕西理工大学 | A kind of simulator and Road quality simulation method on multi-state road surface |
| CN113776858A (en) * | 2021-08-03 | 2021-12-10 | 李路霜 | Tire wear resistance detector with multiple detection environments and detection method thereof |
| WO2022094751A1 (en) * | 2020-11-03 | 2022-05-12 | 东营市方兴橡胶有限责任公司 | Tire wear resistance detection device and detection method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5140105B1 (en) * | 1971-07-06 | 1976-11-01 | ||
| CN108535016B (en) * | 2018-06-26 | 2019-04-23 | 西南交通大学 | High-heat environment bullet train wheel shaft wear simulation case |
| CN213022125U (en) * | 2020-02-20 | 2021-04-20 | 广州市番通汽车检测有限公司 | Tire balancing machine |
| CN213337040U (en) * | 2020-09-27 | 2021-06-01 | 湖北利恒瑞密封件有限公司 | Wear resistance detection device is used in rubber seal production |
| CN213986022U (en) * | 2020-12-23 | 2021-08-17 | 武汉车之道汽车技术服务有限公司 | Data terminal based on automobile informatization performance detection system |
| CN216247106U (en) * | 2021-11-04 | 2022-04-08 | 四川赢信汇通实业有限公司 | Automobile hub detection test bed |
| CN114279723A (en) * | 2021-12-26 | 2022-04-05 | 孙超 | Performance testing device for new energy automobile tire |
-
2022
- 2022-12-01 CN CN202211523072.5A patent/CN115541266B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470488A (en) * | 2018-09-29 | 2019-03-15 | 陕西理工大学 | A kind of simulator and Road quality simulation method on multi-state road surface |
| WO2022094751A1 (en) * | 2020-11-03 | 2022-05-12 | 东营市方兴橡胶有限责任公司 | Tire wear resistance detection device and detection method thereof |
| CN113776858A (en) * | 2021-08-03 | 2021-12-10 | 李路霜 | Tire wear resistance detector with multiple detection environments and detection method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115541266A (en) | 2022-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115541266B (en) | Automobile wheel wear resistance detector | |
| CN207423476U (en) | A kind of automobile chassis rigidity test platform | |
| CN103454056B (en) | Fuel tank noise testing simulation brake test table | |
| CN106840710B (en) | Tire noise testing device and tire noise data acquisition system | |
| CN105445180A (en) | Pavement antiskid performance testing device and testing method thereof | |
| CN209673585U (en) | A kind of abrasion wheel apparatus for roadmarking device for testing endurance | |
| CN110221192B (en) | New energy automobile integrated circuit chip test system and test method thereof | |
| CN107588916B (en) | Fuel tank noise measurement drive test bed | |
| CN112945584A (en) | Tire impact resistance testing device | |
| CN117870505B (en) | Distance measuring device suitable for many topography | |
| CN209485898U (en) | A kind of tire wear resistance detection device | |
| CN107884210B (en) | Tire obstacle-crossing mechanical response comprehensive testing device | |
| CN204903124U (en) | A platform truck for colliding in test | |
| JP2005121586A (en) | Method of detecting concrete soundness, and apparatus | |
| CN203465097U (en) | Fuel tank simulation test stand | |
| CN112342880B (en) | Laser scanning vehicle for detecting surface roughness of track paving layer | |
| CN214584600U (en) | Multi freedom anticollision roof beam three-point bending test device | |
| CN112813779B (en) | Municipal works road surface roughness detection robot | |
| CN212482377U (en) | Rural road roughness detection device convenient to remove | |
| JP4885791B2 (en) | Pile dynamic horizontal loading test equipment | |
| JP2002303610A (en) | Method and device for discriminating soundness of concrete | |
| CN113650544A (en) | Concrete sampling maintenance vehicle for field operation | |
| CN207263603U (en) | A kind of vehicular friction coefficient testing car | |
| CN208043421U (en) | A kind of bumper for car crash tests device | |
| US3857276A (en) | Shock absorber testing apparatus |
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 |