CN110455561A - More material output devices and wheel rail high speed contact fatigue tester protective device - Google Patents
More material output devices and wheel rail high speed contact fatigue tester protective device Download PDFInfo
- Publication number
- CN110455561A CN110455561A CN201910701520.8A CN201910701520A CN110455561A CN 110455561 A CN110455561 A CN 110455561A CN 201910701520 A CN201910701520 A CN 201910701520A CN 110455561 A CN110455561 A CN 110455561A
- Authority
- CN
- China
- Prior art keywords
- contact fatigue
- delivery pipe
- high speed
- rail
- output devices
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 86
- 230000001681 protective effect Effects 0.000 title abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 26
- 238000012360 testing method Methods 0.000 claims abstract description 24
- 238000003860 storage Methods 0.000 claims abstract description 21
- 238000009661 fatigue test Methods 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 239000000428 dust Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000011344 liquid material Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 15
- 229910052742 iron Inorganic materials 0.000 description 8
- 244000035744 Hura crepitans Species 0.000 description 5
- 238000005488 sandblasting Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000001802 infusion Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
- B65G47/18—Arrangements or applications of hoppers or chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D3/00—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes
-
- 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
- G01M17/08—Railway vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention patent relates to wheel rail high speed contact fatigue testers, the more material output devices of wheel rail high speed contact fatigue tester and wheel rail high speed contact fatigue tester protective device are used for more particularly to one kind, more material output devices include: material storage device, and multiple chambers for being respectively used to load different material are provided in the material storage device；Delivery pipe group, the delivery pipe group include the more delivery pipes with one-to-one, the selectable progress material conveying of the chamber, and the switch for delivery pipe opening and closing is provided in every delivery pipe；The output end of the every delivery pipe is used to connect with rail rolling contact fatigue-testing machine.By the way that above-mentioned more material output devices are arranged, when carrying out rail rolling contact fatigue-testing, by the way that multiple indoor materials of chamber for loading different material respectively are output in rail rolling contact fatigue-testing machine, more convenient fill out sets test variable.
Description
Technical field
The invention patent relates to wheel rail high speed contact fatigue testers, and in particular to one kind is used for wheel high-speed steel rail
The more material output devices of contact fatigue test machine and wheel rail high speed contact fatigue tester protective device.
Background technique
As high speed, the development of heavy haul railway, and route train number increase so that rail rolling contact fatigue has become
Influence a great problem of rail transportation efficiency and business efficiency raising.The failure mode of rail rolling contact fatigue is a variety of more
Sample reinforces the research to rail rolling contact fatigue formation mechenism, effectively prevents or slow down the damage of rail rolling contact fatigue, tool
There are highly important social effect and economic significance, so rail fatigue experimental study is carried out, by changing load, speed, song
The line angle of attack and different steel rail materials and treatment process etc. can influence the test parameters of rail rolling contact fatigue, experimental study
Rail rolling contact fatigue wearing character, there is certain reference value to railway transportation practical application.Carrying out rail rolling at present
It is more rare in view of in actual operation, various impurity, material enter contact of the rail with wheel when dynamic contact fatigue test
Face is influenced to rail fatigue test bring, this conclusion that current rail rolling contact fatigue-testing is obtained has certain
Limitation.
Summary of the invention
It is wheel rail high speed contact fatigue test output simulation reality fortune the main purpose of the present invention is to provide one kind
More material output devices that the met sundries of row, rail level pollute additionally provide one kind and allow wheel rail high speed contact fatigue tester
The wheel rail high speed contact for more easily carrying out the low adhesive properties test of wheel track and adjustment increasing stick test test variable is tired
Labor testing machine protective device.
The technical solution adopted by the present invention is that a kind of more material output devices, for being tried to wheel rail high speed contact fatigue
It tests machine and sprays material, comprising:
Material storage device is provided with multiple chambers for being respectively used to load different material in the material storage device；
Delivery pipe group, the delivery pipe group include more with one-to-one, the selectable progress material conveying of the chamber
Root delivery pipe is provided with the switch for delivery pipe opening and closing in every delivery pipe；
The output end of the every delivery pipe is used to connect with rail rolling contact fatigue-testing machine and roll with rail
It is corresponding that the rail of contact fatigue test machine is in rolling contact face.
It is found by the applicant that present rail rolling contact fatigue-testing have with true wheel rail high speed contact situation it is larger
Difference, when carrying out the low adhesive properties test of wheel track and increasing stick is tested, passed through by the way that above-mentioned more material output devices are arranged
By it is multiple respectively load different materials the indoor materials of chamber be output in wheel rail high speed contact fatigue tester, i.e., into
Driving wheel high-speed steel rail contact fatigue test machine adds the material for influencing rail level state, and it is low glutinous more easily to carry out wheel track
Attribute testing and adjustment increasing stick test test variable.
Further, the material storage device lower end and delivery pipe arrival end connect, the delivery pipe it is defeated
Height is lower than the arrival end height where outlet.
Further, being provided with the air valve connecting with chamber on the material storage device.
Further, the air valve connects air compressor.
Further, the material storage device includes:
Fluid chamber, for storing liquid material；
Solid Cavity, for storing solid fluid material；
Mixing chamber, for storing two phase materials of solid-liquid, the mixing chamber is provided with the stirring motor for stirring material.
By the way that above-mentioned three kinds of material chambers are arranged, it can preferable to meet test needs.
Further, the switch is regulating valve, throttle valve, any one or any a variety of group in gate valve
It closes.
As another aspect of the present invention, it is anti-that the present invention also provides a kind of wheel rail high speed contact fatigue testers
Protection unit, which includes above-mentioned more material output devices.
Further, wheel rail high speed contact fatigue tester protective device further includes test chamber, the test chamber packet
It includes:
Top, the top include lower opening on open box body, opened on this in box body for the upper rolling for simulating rail be arranged
Wheel；
Lower part, the lower part include that box body is opened under upper opening, are opened in box body under this for the lower rolling of simulating wheel to be arranged
Wheel；
Box body is opened on described open under be connected between box body by rubber telescopic.
By the way that the wheel rail high speed contact fatigue tester protective device is arranged, above-mentioned examination not only can be easily added
The a variety of different materials tested, and by opened by box body, under open box body and rubber telescopic form one by upper roller, under
The shell that idler wheel covers, in carrying out material conveying, projection, injection or spraying process, material will not be sputtered arbitrarily outside shell,
To have the function that environmentally friendly, Yi Huishou, protection operator.
Further, the conveying pipe end of more material output devices is faced with bottom roller and the to be contacted of upper roller
Answering delivery pipe end portion is copper pipe.Here delivery pipe end portion uses copper pipe, by the preferable material of the plasticity of copper pipe
Feature can be convenient and carry out angle adjustment to conveying pipe end.
Further, the test chamber is communicated with dust exhaust apparatus, the material in above-mentioned shell is cleared up with facilitating
And recycling.
The present invention is described further with reference to the accompanying drawings and detailed description.The additional aspect of the present invention and excellent
Point will be set forth in part in the description, and partially will become apparent from the description below.Or practice through the invention
It solves.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to assist the understanding of the present invention, content provided in attached drawing and its
Related explanation can be used for explaining the present invention in the present invention, but not constitute an undue limitation on the present invention.In the accompanying drawings:
Fig. 1 is for illustrating this more material output device and wheel rail high speed contact fatigue tester protective device just
Depending on schematic diagram；
Fig. 2 is the side for illustrating this more material output device and wheel rail high speed contact fatigue tester protective device
Depending on schematic diagram；
Fig. 3 is for illustrating bowing for this more material output device and wheel rail high speed contact fatigue tester protective device
Depending on schematic diagram；
Marked in the figure: 1- material storage device, 2- leakproof fuel cell, 3- air valve, 4- seal sandbox, 5- stirring motor, 6-
Mixing seal box, 8- iron pipe, 9- throttle valve, 10- gate valve, 11- quick coupling, opens box body, 13- rubber on 12- at 7- delivery hose
Box body, 15- high-pressure hose, 16- copper pipe, 17- dust exhaust apparatus, 18- upper roller, 19- bottom roller are opened under glue telescopic, 14-.
Specific embodiment
Clear, complete explanation is carried out to the present invention with reference to the accompanying drawing.Those of ordinary skill in the art are being based on these
The present invention will be realized in the case where explanation.Before in conjunction with attached drawing, the present invention will be described, of particular note is that:
The technical solution provided in each section including following the description and technical characteristic in the present invention are not rushing
In the case where prominent, these technical solutions and technical characteristic be can be combined with each other.
In addition, the embodiment of the present invention being related in following the description is generally only the embodiment of a branch of the invention, and
The embodiment being not all of.Therefore, based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, should fall within the scope of the present invention under the premise of labour.
About term in the present invention and unit.Term in description and claims of this specification and related part
" comprising " and its any deformation, it is intended that cover and non-exclusive include.
Related content of the invention is illustrated above.Those of ordinary skill in the art are in the feelings illustrated based on these
The present invention will be realized under condition.Based on above content of the invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, should fall within the scope of the present invention under the premise of labour.
Such as Fig. 1-3, a kind of more material output devices, for spraying material to rail rolling contact fatigue-testing machine, comprising:
Material storage device 1 is provided with multiple chambers for being respectively used to load different material in the material storage device 1；
Delivery pipe group, the delivery pipe group include more with one-to-one, the selectable progress material conveying of the chamber
Root delivery pipe is provided with the switch for delivery pipe opening and closing in every delivery pipe；
The output end of the every delivery pipe is used to connect with rail rolling contact fatigue-testing machine.
The material variety that the number of the chamber of material storage device 1 exports as needed determines, settable for storing liquid
The fluid chamber of state material, the Solid Cavity for storing solid fluid material, the mixing chamber for storing two phase materials of solid-liquid.Here
Fluid chamber can load oil or liquid, the Solid Cavity such as water and can load the solids such as sand grains, dust, trash ice, leaf, mixing chamber can
With by above-mentioned material combined shipment.Above-mentioned delivery pipe can be hose or hard tube or a part is hose.
The lower end of material storage device 1 and the arrival end of delivery pipe connect, and height is low where the output end of the delivery pipe
In the arrival end height.In this way setting be in order to which material is output in rail rolling contact fatigue-testing machine by gravity,
Convenient and simple, energy saving.The air valve connecting with chamber is provided on the material storage device 1.The air valve connection
Air compressor.To provide necessary power when needed, material is exported.It is regulating valve, throttle valve, gate valve in switch
In any one or any a variety of combination.In the delivery pipe of connection fluid chamber, regulating valve preferably is set by switch,
In connection Solid Cavity or the delivery pipe of mixing chamber, throttle valve or gate valve preferably are set by switch.
Embodiment one: a kind of wheel rail high speed contact fatigue tester protective device, the wheel rail high speed contact are tired
Labor testing machine protective device includes above-mentioned more material output devices.
Wheel rail high speed contact fatigue tester protective device further includes test chamber, which includes:
Top, the top include lower opening on open box body 12, the upper rolling of setting simulation rail in box body 12 is opened on this
Wheel 18；
Lower part, the lower part include that box body 14 is opened under upper opening, and the lower rolling of setting simulating wheel in box body 14 is opened under this
Wheel 19；
Box body 12 is opened on described open under be connected between box body 14 by rubber telescopic 13.
This wheel rail high speed contact fatigue tester protective device not only can easily add the more of above-mentioned test
Kind of different material, and by opened by box body 12, under open box body 14 and rubber telescopic 13 form one by upper roller 18, under
The shell that idler wheel 19 covers, in carrying out material conveying, projection, injection or spraying process, material will not arbitrarily sputter shell
Outside, to have the function that environmentally friendly, Yi Huishou, protection operator.The conveying pipe end of more material output devices and lower rolling
19 delivery pipe end portions corresponding with the face to be contacted of upper roller 18 of wheel are copper pipe 16.Here it sets delivery pipe end portion to
Copper pipe 16 carries out angle adjustment to conveying pipe end to facilitate, i.e. adjustment material output angle.Upper and lower part is set to hydraulic
It on platform, is pressed by lower upper and lower part, driving upper and lower part moves toward one another.
It can be specifically configured by following:
Setting leakproof fuel cell 2, sealing sandbox 4, the mixing seal box 6 that water, ice, leaf mix, three kinds of cabinets are right with it
The delivery pipe answered separately constitutes oil dripping device, sand blasting unit, mixing output device.
The leakproof fuel cell 2 of oil dripping device is placed in the object being fixed on by wheel rail high speed contact fatigue tester protective device
Expect in storage device 1, opening is arranged at 2 bottom of leakproof fuel cell, and be open connecting conveying pipe, which can use delivery hose 7, defeated
It sending and connects medical infusion bottle infusion apparatus on hose 7 as regulating valve, the other end of infusion apparatus is connect by quick coupling 11 with copper pipe 16,
Copper pipe is fixed on down by band opens 14 top of box body.Copper pipe end can extend to attached to the Bearing pattern of idler wheel (upper bottom roller 19)
Closely.By adjusting infusion apparatus switch controls oil dripping flow.
The sealing sandbox 4 of sand blasting unit is placed in the object being fixed on by wheel rail high speed contact fatigue tester protective device
Expect to be connected with air valve 3 on sand box cover, 3 other end of air valve connects this air compressor, to supply gas source in storage device 1.
Sandbox bottom uses choana, and bottom opening welds together with a hollow iron pipe 8, has gate valve 10 in the middle part of iron pipe 8, inserts
Scale is provided on plate valve 10.8 other end of iron pipe is connect by quick coupling 11 with copper pipe 16, which is fixed on by band
Under open the top of box body 14, copper pipe end can extend near the Bearing pattern to idler wheel.Angle by changing copper pipe end can be realized
Different sandblasting angles；Square gate valve 10 under pressure value and damper box by the air pressure valve of the damper box side of covering
Furthermore the degree (opening for changing hole) of closing loads different-grain diameter to achieve the purpose that accurately to control sand grains flow velocity
Sand grains can also realize the requirement of different-grain diameter difference sandblasting speed.
The mixing seal box 6 of mixing output device, which is placed in, is fixed on wheel rail high speed contact fatigue tester protective device
In other material storage device 1, air valve 3 is connected on case lid, 3 other end of air valve connects this air compressor, to supply
Gas source.Stirring motor 5 is connect by two fastening bolts with sealing chamber interior wall, and outlet obstruction can be prevented.Go out below body feed tank
Mouth is connected with iron pipe 8, and throttle valve 9 is provided on the iron pipe 8, and 8 other end of iron pipe is connect by quick coupling 11 with copper pipe 16, copper
Pipe is fixed on down by band opens 14 top of box body, and copper pipe end can extend near the Bearing pattern to idler wheel.By changing copper pipe
The angle of end can realize different spraying angles；By the pressure value of the air pressure valve of the damper box side of covering, to reach control
The purpose of flow processed.
Protection and device opened from above box body 12, under open box body 14 and rubber telescopic 13 form, by two to roll body packet
It surrounds, forms a relatively independent space.It opens box body above and below to be made of the split mirror image two halves box body of shaft centerline, respectively
It is fixed on upper and lower wheel seat basis by fixing bolt, installs rubber soft sealing between upper and lower box body additional.
Embodiment two: on the basis of example 1, the test chamber is communicated with dust exhaust apparatus 17, convenient to above-mentioned shell
Interior material is cleared up and is recycled.Here dust exhaust apparatus can be connected to by hose with above-mentioned shell inner cavity.On-test
When, the iron filings for testing generation, the sand spread out and other mixtures, which will be centrifuged to 15 side of high-pressure hose by wheel body, to splash
Under and, it is sucked out and is stored in dust collector box body through high-pressure hose 15 and dust exhaust apparatus 17.Protection can be reached simultaneously and waste returns
The effect of receipts, the waste in periodic cleaning high-efficiency dust remover.For different sandblasting amounts, deduster work only need to be accordingly adjusted
Make gear.In order to facilitate transport, universal wheel can be set under dust exhaust apparatus 17.
Related content of the invention is illustrated above.Those of ordinary skill in the art are in the feelings illustrated based on these
The present invention will be realized under condition.Based on above content of the invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, should fall within the scope of the present invention under the premise of labour.
Claims (10)
- Material output device more than 1., for spraying material to rail rolling contact fatigue-testing machine characterized by comprisingMaterial storage device is provided with multiple chambers for being respectively used to load different material in the material storage device；Delivery pipe group, the delivery pipe group include with the chamber it is one-to-one, it is selectable carry out more of material conveying it is defeated Pipe is sent, the switch for delivery pipe opening and closing is provided in every delivery pipe；The output end of the every delivery pipe is used to connect with rail rolling contact fatigue-testing machine and be in rolling contact with rail It is corresponding that the rail of fatigue tester is in rolling contact face.
- 2. more material output devices as described in claim 1, which is characterized in that the lower end of the material storage device and conveying The arrival end of pipe connects, and height is lower than the arrival end height where the output end of the delivery pipe.
- 3. more material output devices as described in claim 1, which is characterized in that be provided on the material storage device and chamber The air valve of room connection.
- 4. more material output devices as claimed in claim 3, which is characterized in that the air valve connects air compressor.
- 5. more material output devices as described in claim 1, which is characterized in that the material storage device includes:Fluid chamber, for storing liquid material；Solid Cavity, for storing solid fluid material；Mixing chamber, for storing two phase materials of solid-liquid, the mixing chamber is provided with the stirring motor for stirring material.
- 6. more material output devices as described in claim 1, which is characterized in that the switch is regulating valve, throttle valve, plate Any one in valve or any a variety of combination.
- 7. wheel rail high speed contact fatigue tester, which is characterized in that defeated including more materials as described in claim 1~6 Device out.
- 8. wheel rail high speed contact fatigue tester as claimed in claim 7, which is characterized in that it further include test chamber, it should Test chamber includes:Top, the top include lower opening on open box body, opened on this in box body for the upper roller for simulating rail be arranged；Lower part, the lower part include that box body is opened under upper opening, are opened in box body under this for the bottom roller of simulating wheel to be arranged；Box body is opened on described open under be connected between box body by rubber telescopic.
- 9. wheel rail high speed contact fatigue tester as claimed in claim 8, which is characterized in that more material output dresses The conveying pipe end set is corresponding with the face to be contacted of bottom roller and upper roller, and delivery pipe end portion is copper pipe.
- 10. wheel rail high speed contact fatigue tester as claimed in claim 8, which is characterized in that the test chamber connection There is dust exhaust apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910701520.8A CN110455561A (en) | 2019-07-31 | 2019-07-31 | More material output devices and wheel rail high speed contact fatigue tester protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910701520.8A CN110455561A (en) | 2019-07-31 | 2019-07-31 | More material output devices and wheel rail high speed contact fatigue tester protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110455561A true CN110455561A (en) | 2019-11-15 |
Family
ID=68484269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910701520.8A Pending CN110455561A (en) | 2019-07-31 | 2019-07-31 | More material output devices and wheel rail high speed contact fatigue tester protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110455561A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926832A (en) * | 2019-12-13 | 2020-03-27 | 无为华美机动车安全检测有限公司 | Site simulation construction vehicle for detecting ground gripping performance of car |
| CN114054974A (en) * | 2021-11-02 | 2022-02-18 | 深圳市信维智能装备技术有限公司 | Automatic waste collecting mechanism |
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| CN110926832A (en) * | 2019-12-13 | 2020-03-27 | 无为华美机动车安全检测有限公司 | Site simulation construction vehicle for detecting ground gripping performance of car |
| CN114054974A (en) * | 2021-11-02 | 2022-02-18 | 深圳市信维智能装备技术有限公司 | Automatic waste collecting mechanism |
| CN114054974B (en) * | 2021-11-02 | 2024-04-09 | 深圳市信维智能装备技术有限公司 | Automatic waste material collecting mechanism |
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