CN108340979A - A kind of high-strength endless-track chassis structure and apply its creeper truck - Google Patents
A kind of high-strength endless-track chassis structure and apply its creeper truck Download PDFInfo
- Publication number
- CN108340979A CN108340979A CN201810000933.9A CN201810000933A CN108340979A CN 108340979 A CN108340979 A CN 108340979A CN 201810000933 A CN201810000933 A CN 201810000933A CN 108340979 A CN108340979 A CN 108340979A
- Authority
- CN
- China
- Prior art keywords
- tensioning
- tensioning wheel
- chassis structure
- grip block
- strainer
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/30—Track-tensioning means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/104—Suspension devices for wheels, rollers, bogies or frames
- B62D55/108—Suspension devices for wheels, rollers, bogies or frames with mechanical springs, e.g. torsion bars
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
The invention discloses a kind of high-strength endless-track chassis structure and apply its creeper truck, the crawler body includes vehicle frame, the strainer being arranged on vehicle frame, and it is fixed on the crawler belt that vehicle frame both sides are tensioned by strainer, the strainer includes the guide sleeve being installed on tensioning wheel beam, being equipped in the guide sleeve can be along the nutted rod of sleeve stretching, one end of the nutted rod connects a tensioning plate, a tensioning bolt is worn on the tensioning plate, the tensioning bolt is threadedly coupled with tensioning plate, it is provided with through-hole on tensioning wheel beam, the side of the through-hole is installed with fixing nut, the tensioning bolt passes through the through-hole and is threadedly coupled with the fixing nut, the other end of nutted rod is connected with grip block, the grip block is clamped on the wheel shaft of tensioning wheel.The creeper truck is provided with buffer structure, and the impact force that crawler belt undertakes is undertaken a part by body frame structure for automotive, reduces the damage to crawler belt, and convenient for disassembly and assembly, stabilized structure is not susceptible to block.
Description
Technical field
The invention belongs to creeper truck technical fields, and in particular to a kind of crawler body structure and the crawler belt with the structure
Vehicle.
Background technology
It is especially rough in order to overcome severe open work environment and changeable road conditions in engineering machinery
The effect place etc. of road, rubble ground and miriness, the caterpillar walking mechanism of engineering machinery generally use, such as crawler type
Dumping plough, crawler crane, crawler-mounted excavator and crawler dozer etc..Because crawler travel have the area that lands it is big,
Geostatic pressure it is small, with ground adhesion strength it is stronger and it is good traction, ground support and driving.Crawler type walking mechanism must be provided with
Track takeup, track takeup are the important components of crawler type walking mechanism, it is desirable that be can adapt to complicated and changeable
Road conditions, performance quality has a significant impact to the driving performance of caterpillar engineering machinery, to ensure that engineering machinery safely may be used
The walking leaned on.
Since creeper truck general work environment is complicated severe, the track takeup in existing creeper truck is easy to happen stifled
Plug needs to carry out dismounting repair if occurring to block, but the dismounting of existing tensioning apparatus is again more inconvenient, and actual use is
There are many troubles, in addition, the structural stability of existing track takeup is also to be improved, it can be big if structural stability is bad
The big tension effects for reducing tensioning apparatus.
In addition, since the fixation of existing creeper truck crawler belt is generally rigid fixation structure, is encountering impact or crossing ditch
In the case of crossing a ridge, the function of buffering is often undertaken by crawler belt, which directly results in the reduced service life of crawler belt, especially
It is to rubber belt track, and often the service life of crawler belt determines the service life of creeper truck.The failure of creeper truck other parts
Rate is very low, and the most problem of creeper truck goes out on crawler belt, and crawler belt once goes wrong, can only by more bringing solution,
If badly in the wild, encountering the case where being difficult to repair, the loss being subject to is difficult to estimate.This, which is also existing creeper truck, to advise greatly
The impact force that crawler belt is subject to is transferred to and allows vehicle frame so how to reduce the impact force of crawler belt by the major reason that mould promotes and applies
It itself undertakes, is urgent problem now.
Invention content
The technical problem to be solved by the present invention is to overcome the shortcomings of to mention in background above technology and defect, provide one
Kind increases crawler belt service life, convenient for disassembly and assembly, stabilized structure, is not susceptible to the crawler belt high-strength endless-track chassis structure blocked.
In order to solve the above technical problems, technical solution proposed by the present invention is：
A kind of high-strength endless-track chassis structure, including it is provided with the vehicle frame of tensioning wheel beam, the tensioning device being arranged on vehicle frame
Structure, and it is fixed on the crawler belt that vehicle frame both sides are tensioned by strainer, the strainer includes being installed on tensioning wheel beam
Guide sleeve, being equipped in the guide sleeve can be along the nutted rod of sleeve stretching, and one end of the nutted rod connects a tensioning plate, described
A tensioning bolt is worn on tensioning plate, the tensioning bolt is threadedly coupled with tensioning plate, and through-hole is provided on tensioning wheel beam, described logical
The side in hole is installed with fixing nut, and the tensioning bolt passes through the through-hole and is threadedly coupled with the fixing nut, is tensioned
The other end of bar is connected with grip block, and the grip block is clamped on the wheel shaft of tensioning wheel, is also equipped on the nutted rod slow
Spring is rushed, one end of the buffer spring is connected to the end of guide sleeve, and the other end is connected on tensioning plate.
It is further improved as to above-mentioned technical proposal：
Preferably, mounting hole is offered on the grip block, and connection screw thread cylinder, the tensioning are arranged in the mounting hole
Bar is threadedly coupled with the connection screw thread cylinder, and axial gap, the axial gap are provided between mounting hole and connection screw thread cylinder
Inside it is provided with buffering spacer.
It is furthermore preferred that offering clamping straight slot on the grip block, the wheel shaft of the tensioning wheel is threaded through the clamping and leads to
In slot, clamping nut is equipped in the outside of the grip block on the wheel shaft of tensioning wheel.
It is furthermore preferred that the clamping straight slot is set to side opposite with the mounting hole on the grip block, straight slot is clamped
Opening direction it is opposite with the opening direction of mounting hole.
Preferably, on the tensioning bolt fastening screw nut is equipped with close to the inside of the tensioning plate.
Preferably, parallel on the tensioning wheel beam that two guide sleeves are installed, it is equipped with a tensioning in two guide sleeves
Bar, two nutted rods are connected to the both ends of the tensioning plate, and the tensioning bolt is connected to the middle part of tensioning plate, and two are opened
The other end of tight bar is respectively connected with the grip block, and two grip blocks are clamped in the both sides of the tensioning wheel respectively.
It is furthermore preferred that the tensioning wheel beam is two, the guide sleeve fixation, which is worn, to be installed on two tensioning wheel beams.
It is furthermore preferred that the tensioning bolt is parallel with two nutted rods, and in same plane.
Preferably, further include the vehicle frame for being provided with tensioning wheel beam, the strainer being arranged on vehicle frame, and it is fixed on vehicle
The front and back end of the crawler belt that frame both sides are tensioned by strainer, the vehicle frame both sides is both provided with tensioning wheel beam, the tensioning wheel
It is both provided with strainer on beam, further includes the X-shaped supporting rack being arranged in vehicle frame lower end, support frame as described above includes four fixations
End, four fixing ends are individually fixed on the tensioning plate of strainer.
The technical concept total as one, another aspect of the present invention provide a kind of creeper truck, consolidate on the crawler body
Equipped with tensioning wheel beam, above-mentioned crawler body structure is installed on the tensioning wheel beam.
Compared with the prior art, the advantages of the present invention are as follows：It is provided with buffer structure, the impact force that crawler belt undertakes is passed through
Body frame structure for automotive undertakes a part, reduces the damage to crawler belt.The mounting guide sleeve on tensioning wheel beam, being worn in guide sleeve can be along leading
One end of the flexible nutted rod of set, the nutted rod connects tensioning plate, and the other end connects grip block, tensioning is threadedly coupled on tensioning plate
Bolt, tensioning bolt pass through tensioning wheel beam and are threadedly coupled with fixing nut.Tensioning wheel beam is fixedly mounted on creeper truck, is passed through
Tensioning bolt adjusts the outreach that the distance between tensioning plate and tensioning wheel beam are adjustable tensioning wheel, makes crawler tensioning, with
The tensioning bolt that tensioning plate and fixing nut are threadedly coupled can prevent nutted rod from retracting.The crawler body structure is convenient for disassembly and assembly, ties
Structure is firm, and is not susceptible to block, and tension effects are good.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the stereogram of track takeup of the present invention.
Fig. 2 is the vertical view of track takeup of the present invention.
Fig. 3 is the front view of track takeup of the present invention.
Fig. 4 is the schematic cross-sectional view in the faces A-A along Fig. 3.
Marginal data：
1, guide sleeve；2, nutted rod；3, tensioning plate；4, tensioning bolt；5, grip block；6, fastening screw nut；7, fixing nut；8、
Tensioning wheel beam；9, tensioning wheel；10, nut is clamped；51, mounting hole；52, straight slot is clamped.
Specific implementation mode
To facilitate the understanding of the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete
Face meticulously describes, but the protection scope of the present invention is not limited to the following specific embodiments.
It should be strongly noted that when to be described as " be fixed on, be fixed in, be connected to or be communicated in " another for a certain element
When on element, it can be directly fixed, affixed, connection or be connected on another element, can also be by connecting among other
Fitting is indirectly fixed, affixed, connects or is connected on another element.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention
Protection domain.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of embodiment of crawler body structure of the present invention.The crawler body structure
Vehicle frame including being provided with tensioning wheel beam 8 is arranged the strainer on vehicle frame tensioning wheel beam 8, and is fixed on vehicle frame both sides
The crawler belt being tensioned by strainer, the strainer includes the guide sleeve 1 being installed on tensioning wheel beam 8, is worn in the guide sleeve 1
There is the nutted rod 2 that can be stretched along guide sleeve 1.One end of the nutted rod 2 connects tensioning plate 3.It is equipped with tensioning bolt on tensioning plate 3
4.The tensioning bolt 4 is threadedly coupled with tensioning plate 3.It is provided with through-hole on tensioning wheel beam 8, the side of the through-hole is welded with fixed spiral shell
Mother 7.Tensioning bolt 4 passes through through-hole and is threadedly coupled with the fixing nut 7.The other end of nutted rod 2 is connected with grip block 5, should
Grip block 5 is clamped on the wheel shaft of tensioning wheel 9.Entire track takeup and tensioning wheel 9 are fixedly mounted by tensioning wheel beam 8
On creeper truck.The distance between tensioning plate 3 and tensioning wheel beam 8 are adjusted by tensioning bolt 4, you can adjust stretching for tensioning wheel 9
Go out distance, makes crawler tensioning.The tensioning bolt 4 being threadedly coupled with tensioning plate 3 and fixing nut 7 can prevent nutted rod 2 from retracting.It should
Track takeup is convenient for disassembly and assembly, stabilized structure, and is not susceptible to block, and tension effects are good.
Mounting hole 51 is offered on the grip block 5 of the track takeup, connection screw thread cylinder is arranged in the mounting hole 51
(not shown).Nutted rod 2 is threadedly coupled with the connection screw thread cylinder.It is provided with axial direction between mounting hole 51 and connection screw thread cylinder
Gap is provided with buffering spacer (not shown) in the axial gap.Nutted rod 2 passes through connection screw thread cylinder and grip block 5
Connection, it is easy to connect and firm.Axial gap is set between mounting hole 51 and connection screw thread cylinder, and is set in the axial gap
Buffering spacer is set, can make connection between nutted rod 2 and grip block 5 that there is certain flexibility, too rigid connection is avoided to cause
Situations such as tensioning wheel 9 causes crawler belt to loosen or be broken when encountering shock.
In the present embodiment, clamping straight slot 52 is offered on grip block 5.The wheel shaft of tensioning wheel 9 is threaded through the clamping straight slot
In 52, clamping nut 10 is equipped in the outside of grip block 5 on the wheel shaft of tensioning wheel 9.It is logical that the wheel shaft of tensioning wheel 9 is threaded through clamping
It is clamped in slot 52, is then set in grip block 5 and tensioning wheel on wheel shaft from the outside of grip block 5 by the way that nut 10 is clamped
9 are fixedly clamped, and tensioning wheel 9 is avoided to loosen.The opening direction of the clamping straight slot 52 can be horizontal along grip block 5, vertical
Or inclined direction, but generally should not be parallel or at an acute angle with the opening direction of mounting hole 51, because may be such that in this way
Tensioning wheel 9 slides under surge from clamping straight slot 52.Preferred scheme is, clamping straight slot 52 be set on grip block 5 with
The opposite side of mounting hole 51, and the opening direction that straight slot 52 is clamped is opposite with the opening direction of mounting hole 51.In this way, can be true
It protects no matter tensioning wheel 9 will not slide under great surge from clamping straight slot 52, further improves the crawler belt
The stability of tight device.
In the present embodiment, the inside of tensioning plate 3 is provided with fastening screw nut 6 on tensioning bolt 4.Tensioning wheel 9 adjusts
After tensioning, the fastening screw nut 6 is screwed to 3 side of tensioning plate, tensioning bolt 4 and tensioning plate 3 can be locked, prevents tensioning spiral shell
Bolt 4 loosens, and further increases the stability of structure.It is preferred that parallel on tensioning wheel beam 8 be equipped with two guide sleeves 1.This two are led
It is equipped with a nutted rod 2 in set 1, two nutted rods 2 are connected to the both ends of tensioning plate 3.Tensioning bolt 4, which is connected to, to be opened
The middle part of tight plate 3, the other end of two nutted rods 2 are respectively connected with one piece of grip block 5, and two grip blocks 5 are clamped in tensioning respectively
The both sides of wheel 9.In this way, the track takeup stress can be made more balanced, the track takeup is further improved
Structural soundness and tension effects.Tensioning wheel beam 8 is preferably two, and two guide sleeves 1 fixed wear is tensioned mounted on this two
It takes turns on beam 8, structure can be made more firm.And tensioning bolt 4 is then preferably parallel with two nutted rods 2, and in same plane,
Stress is more balanced.
The track takeup can be applied in the crawler body of existing creeper truck, and tensioning wheel beam 8 is welded on track bottom
On the beam of disk, then by the track takeup of the present embodiment on tensioning wheel beam 8.
Further, in order to which the impact force for undertaking crawler belt shifts a part to vehicle frame, first, on the nutted rod 2
It is also equipped with buffer spring, one end of the buffer spring is connected to the end of guide sleeve 1, and the other end is connected on tensioning plate 3, leads to
The structure is crossed, avoids and directly contacts buffer spring with structures such as grip block, crawler belts, reduce the risk of interference, be conducive to
Topology layout is carried out, while playing the effect of buffering, the impact force that a part comes along crawler belt front-rear direction can be offset.Into
One step, the crawler body structure include being provided with the vehicle frame of tensioning wheel beam 8, the strainer being arranged on vehicle frame, Yi Jigu
It is scheduled on the crawler belt that vehicle frame both sides are tensioned by strainer, the front and back end of vehicle frame both sides is both provided with tensioning wheel beam 8, described
It is both provided with strainer on tensioning wheel beam 8, further includes the X-shaped supporting rack being arranged in vehicle frame lower end, support frame as described above includes four
A fixing end, four fixing ends are individually fixed on the tensioning plate 3 of strainer so that the crawler belt of this side front end was born
Power can be transferred on the buffer spring and crawler belt of other side rear end by tensioning plate and supporting rack, will be this by elastic construction
Larger impact force is offset by way of elasticity.Further, the X-shaped supporting rack is slightly domed, and centre is the knot that is fixed as one
Structure, abutting are fixed on bottom of frame, and bearing is bolted, and have certain mobile space, facilitate the shifting of supporting rack
It is dynamic.What on the one hand this arching mechanism can improve creeper truck on the other hand, can be into one by bow-shaped structural by performance
Step reduces impact force, converts impact force to the power upward to vehicle frame, or the elastic force of facing end buffer spring is offset in conversion
With the tensile force of crawler belt, on the other hand, the X-shaped supporting rack also achieves certain function similar to subframe so that carries out
Structure with chassis is more firm, toughness is stronger.Further, the X-shaped supporting rack is circular hollow steel pipe structure, end pressure
It is flat and be provided with connecting hole, it is provided with connecting hole at two portion interfaces in middle part, which is fixed on bottom of frame.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of high-strength endless-track chassis structure, it is characterised in that：Vehicle frame including being provided with tensioning wheel beam (8) is arranged in vehicle
Strainer on frame, and it is fixed on the crawler belt that vehicle frame both sides are tensioned by strainer, the strainer includes installation
In the guide sleeve (1) on tensioning wheel beam (8), being equipped in the guide sleeve (1) can be along the mobile nutted rod (2) of guide sleeve (1), described
One end of tight bar (2) connects a tensioning plate (3), and a tensioning bolt (4), the tensioning bolt (4) are worn on the tensioning plate (3)
It is threadedly coupled with tensioning plate (3), through-hole is provided on tensioning wheel beam (8), the side of the through-hole is installed with fixing nut (7), institute
Tensioning bolt (4) is stated across the through-hole and is threadedly coupled with the fixing nut (7), the other end of nutted rod (2) is connected with
Grip block (5), the grip block (5) are clamped on the wheel shaft of tensioning wheel (9), and buffering elastic is also equipped on the nutted rod (2)
Spring, one end of the buffer spring are connected to the end of guide sleeve (1), and the other end is connected on tensioning plate (3).
2. high-strength endless-track chassis structure according to claim 1, it is characterised in that：It is offered on the grip block (5)
Mounting hole (51), the mounting hole (51) is interior to be arranged with connection screw thread cylinder, the nutted rod (2) and the connection screw thread cylinder screw thread
Connection, is provided with axial gap, buffering spacer is provided in the axial gap between mounting hole (51) and connection screw thread cylinder.
3. high-strength endless-track chassis structure according to claim 2, it is characterised in that：It is offered on the grip block (5)
Be clamped straight slot (52), it is interior that the wheel shaft of the tensioning wheel (9) is threaded through the clamping straight slot (52), on the wheel shaft of tensioning wheel (9) in
The outside of the grip block (5) is equipped with clamping nut (10).
4. high-strength endless-track chassis structure according to claim 3, it is characterised in that：The clamping straight slot (52) is set to institute
State side opposite with the mounting hole (51) on grip block (5), opening direction and the mounting hole (51) of clamping straight slot (52)
Opening direction is opposite.
5. high-strength endless-track chassis structure according to claim 1, it is characterised in that：It is close on the tensioning bolt (4)
The inside of the tensioning plate (3) is equipped with fastening screw nut (6).
6. high-strength endless-track chassis structure according to any one of claims 1-5, it is characterised in that：The tensioning wheel beam
(8) parallel on that two guide sleeves (1) are installed, it is equipped with a nutted rod (2), two nutted rods (2) in two guide sleeves (1)
The both ends of the tensioning plate (3) are connected to, the tensioning bolt (4) is connected to the middle part of tensioning plate (3), two nutted rods
(2) the other end is respectively connected with the grip block (5), and two grip blocks (5) are clamped in the two of the tensioning wheel (9) respectively
Side.
7. high-strength endless-track chassis structure according to claim 6, it is characterised in that：The tensioning wheel beam (8) is two,
Fixed wear of the guide sleeve (1) is installed on two tensioning wheel beams (8).
8. high-strength endless-track chassis structure according to claim 7, it is characterised in that：The tensioning bolt (4) with two
The nutted rod (2) is parallel, and in same plane.
9. high-strength endless-track chassis structure according to claim 1, it is characterised in that：Including being provided with tensioning wheel beam (8)
Vehicle frame, the strainer being arranged on vehicle frame, and be fixed on the crawler belt that vehicle frame both sides are tensioned by strainer, the vehicle
The front and back end of frame both sides is both provided with tensioning wheel beam (8), is both provided with strainer on the tensioning wheel beam (8), further includes setting
The X-shaped supporting rack in vehicle frame lower end is set, support frame as described above includes four fixing ends, and four fixing ends are individually fixed in tensioning
On the tensioning plate (3) of mechanism.
10. a kind of creeper truck, tensioning wheel beam (8) is installed on the crawler body, it is characterised in that：The tensioning wheel beam (8)
Upper installation is just like the high-strength endless-track chassis structure described in any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810000933.9A CN108340979A (en) | 2018-01-02 | 2018-01-02 | A kind of high-strength endless-track chassis structure and apply its creeper truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810000933.9A CN108340979A (en) | 2018-01-02 | 2018-01-02 | A kind of high-strength endless-track chassis structure and apply its creeper truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108340979A true CN108340979A (en) | 2018-07-31 |
Family
ID=62960618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810000933.9A Pending CN108340979A (en) | 2018-01-02 | 2018-01-02 | A kind of high-strength endless-track chassis structure and apply its creeper truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108340979A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110316269A (en) * | 2019-06-21 | 2019-10-11 | 青岛澳西智能科技有限公司 | A kind of tensioning wheel for fire-fighting robot walking mechanism |
| CN113635982A (en) * | 2021-09-07 | 2021-11-12 | 杨胜杰 | Magnetic suspension track |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204341238U (en) * | 2014-12-16 | 2015-05-20 | 湖南梅花油箱工贸有限公司 | Full terrain crawler-type conveyance |
| CN107521575A (en) * | 2017-07-25 | 2017-12-29 | 湖南梅花机电科技有限公司 | A kind of track takeup and the creeper truck with the device |
-
2018
- 2018-01-02 CN CN201810000933.9A patent/CN108340979A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204341238U (en) * | 2014-12-16 | 2015-05-20 | 湖南梅花油箱工贸有限公司 | Full terrain crawler-type conveyance |
| CN107521575A (en) * | 2017-07-25 | 2017-12-29 | 湖南梅花机电科技有限公司 | A kind of track takeup and the creeper truck with the device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110316269A (en) * | 2019-06-21 | 2019-10-11 | 青岛澳西智能科技有限公司 | A kind of tensioning wheel for fire-fighting robot walking mechanism |
| CN113635982A (en) * | 2021-09-07 | 2021-11-12 | 杨胜杰 | Magnetic suspension track |
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Application publication date: 20180731 |