CN209192077U - Thrust wheel and development machine - Google Patents
Thrust wheel and development machine Download PDFInfo
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- CN209192077U CN209192077U CN201821887586.8U CN201821887586U CN209192077U CN 209192077 U CN209192077 U CN 209192077U CN 201821887586 U CN201821887586 U CN 201821887586U CN 209192077 U CN209192077 U CN 209192077U
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Abstract
The utility model provides a kind of thrust wheel and development machine, is related to technical field of engineering machinery, and thrust wheel provided by the utility model includes: support shaft, wheel body and fixed frame, and wheel body is sheathed on the periphery of support shaft, and is rotatablely connected with support shaft；The both ends of support shaft are fixedly connected to fixed frame, and fixed frame has interconnecting piece, and interconnecting piece is equipped with installation through-hole and jackscrew through-hole.Thrust wheel provided by the utility model alleviates the technical problem that thrust wheel in the related technology is not easy under dismantling from the thrust wheel mounting plate to get rusty.
Description
Technical field
The utility model relates to technical field of engineering machinery, more particularly, to a kind of thrust wheel and development machine.
Background technique
Thrust wheel is the important load-supporting part of development machine, and quality is directly related to the operation of complete machine.Branch used at present
Roller directly passes through bolt closing onto walker, and walker is provided with groove, prevents bolt front-rear direction by shear action.Pass through
Axially position is carried out in face of thrust wheel on thrust wheel mounting plate, this method can limit the position of floating seal inside thrust wheel
It sets, the normal work of floating seal is effectively ensured, and can prevent bolt axial by shear action.Supporting wheel shaft is provided with oiling
Hole can be lubricated floating seal and sliding bearing, guarantee floating seal and sliding axle by oil filler point toward oiling inside thrust wheel
Hold normal work.
In the related technology, walker uses welding structure, in use process under residual stress effect, thrust wheel mounting plate
Deformation, and development machine working environment is moist, has acidity, is used for a long time, also results in thrust wheel mounting plate and get rusty, it is basic herein
On, when replacing the thrust wheel of damage, thrust wheel is not easy under dismantling from thrust wheel mounting plate.For thrust wheel of dismantling, What is more
Using explosive blasting, huge security risk is brought to underground.
Utility model content
The purpose of this utility model is to provide a kind of thrust wheel, it is not easy with alleviating thrust wheel in the related technology from getting rusty
Technical problem under being dismantled on thrust wheel mounting plate.
Thrust wheel provided by the utility model, comprising: support shaft, wheel body and fixed frame, the wheel body are sheathed on the branch
The periphery of axis is supportted, and is rotatablely connected with the support shaft；
The both ends of the support shaft are fixedly connected to the fixed frame, and the fixed frame has interconnecting piece, the connection
Portion is equipped with installation through-hole and jackscrew through-hole.
Further, the axis of the jackscrew through-hole is parallel with the axis of the installation through-hole.
Further, the diameter of the jackscrew through-hole is equal to the diameter of the installation through-hole.
Further, the installation through-hole includes the first installation through-hole and the second installation through-hole, and the jackscrew through-hole includes
First jackscrew through-hole and the second jackscrew through-hole, first installation through-hole and second installation through-hole are located at first jackscrew
Between through-hole and the second jackscrew through-hole.
Further, the fixed frame is equipped with oil filler point, and the wheel body is equipped with the oil transportation hole being connected to the oil filler point, institute
Oil transportation hole is stated along the length direction of the wheel body through the wheel body.
Further, the inner wall of the wheel body is equipped with oil groove, and the oil groove is connected to the oil transportation hole.
Further, the oil transportation hole includes the first oil transportation section and the second oil transportation section, along the length direction of the wheel body, institute
It states the first oil transportation section and the second oil transportation section is located at the two sides of the oil groove, the axis of the first oil transportation section and described second
The axis of oil transportation section is staggered.
Further, the axis of the axis of the first oil transportation section and the axis of the second oil transportation section about the wheel body
Symmetrically.
Further, one end of the oil filler point is equipped with plug screw.
The purpose of this utility model further includes providing a kind of development machine, is not easy with alleviating thrust wheel in the related technology from getting rusty
Thrust wheel mounting plate on dismantle under technical problem.
Development machine provided by the utility model, including above-mentioned thrust wheel.
Thrust wheel and development machine provided by the utility model, thrust wheel include: support shaft, wheel body and fixed frame, wheel body set
It is rotatablely connected set on the periphery of support shaft, and with support shaft；The both ends of support shaft are fixedly connected to fixed frame, and fixed frame has
Interconnecting piece, interconnecting piece are equipped with installation through-hole and jackscrew through-hole.Thrust wheel can be installed on the mounting plate of walker by bolt, tool
Body, thrust wheel is installed on mounting plate by the installation through-hole that bolt passes through on fixed frame.When thrust wheel breaks down needs more
When changing or repairing, the bolt of Connection Bracket and mounting plate is backed out, jackscrew through-hole can be such that jackscrew screws in, jackscrew and jackscrew through-hole
Cooperation generates active force to mounting plate, and the active force between jackscrew and mounting plate pushes up thrust wheel out of, groove on mounting plate
Out, thus under thrust wheel is dismantled from walker.
Compared with the relevant technologies, when thrust wheel provided by the utility model need to be dismantled, without explosive blasting, conveniently tear open
Unload and improve safety when disassembly.
Detailed description of the invention
Technical solution in order to illustrate more clearly of specific embodiment of the present invention or in the related technology, below will be right
Attached drawing needed in specific embodiment or description of Related Art is briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the axial sectional view of thrust wheel provided by the embodiment of the utility model；
Fig. 2 is the side partial sectional view of thrust wheel provided by the embodiment of the utility model.
Icon: 100- support shaft；110- positioning screw；120- floating seal；130- sliding bearing；200- wheel body；
300- fixed frame；310- interconnecting piece；The first installation through-hole of 321-；The second installation through-hole of 322-；The first jackscrew of 331- is logical
Hole；332- the second jackscrew through-hole；340- sealing；410- oil filler point；411- plug screw；421- the first oil transportation section；422-
Second oil transportation section；430- oil groove；500- mounting plate.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Fig. 1 is the axial sectional view of thrust wheel provided by the embodiment of the utility model, as shown in Figure 1, the utility model is real
The thrust wheel for applying example offer includes: support shaft 100, wheel body 200 and fixed frame 300, and wheel body 200 is sheathed on the outer of support shaft 100
Week, and be rotatablely connected with support shaft 100；The both ends of support shaft 100 are fixedly connected to fixed frame 300, and fixed frame 300, which has, to be connected
Socket part 310, interconnecting piece 310 are equipped with installation through-hole and jackscrew through-hole.
Specifically, wheel body 200 is cylindrical, and is sheathed on the periphery of support shaft 100, wheel body 200 passes through sliding bearing 130
It is rotatablely connected with support shaft 100.The both ends of wheel body 200 are equipped with fixed frame 300, and the fixed frame 300 at both ends is sheathed on support
Axis 100, and be fixedly connected with support shaft 100.Fixed frame 300 can pass through the side of welding, the connection of bonding or screw with support shaft 100
Formula connects, and in the present embodiment, fixed frame 300 is connect with support shaft 100 by positioning screw 110.Fixed frame 300 is equipped with logical
Hole, support shaft 100 are equipped with the threaded hole cooperated with through-hole on fixed frame 300, and positioning screw 110 is from the periphery of fixed frame 300
Threaded hole on through-hole and support shaft 100 cooperates, and fixed frame 300 is fixedly connected on support shaft 100.
Fixed frame 300 has cylindrical sealing 340, and the diameter of sealing 340 is less than the outer diameter of wheel body 200, wheel
The both ends of body 200 are equipped with mating groove, and the radial section of mating groove is rounded, and the diameter of mating groove is straight slightly larger than sealing 340
One end of diameter, sealing 340 is located in mating groove.The end face opposite with wheel body 200 of sealing 340 is equipped with the first seal groove,
The bottom surface of mating groove is equipped with the second seal groove, and the first seal groove is connected to the second seal groove, the first seal groove and the second seal groove
It is interior to be equipped with floating seal 120, to increase the leakproofness between sealing 340 and wheel body 200.
Further, the axis of jackscrew through-hole and the axis of installation through-hole are parallel.
As shown in Fig. 2, interconnecting piece 310 is located at the side of the separate wheel body 200 of fixed frame 300, it is integrated with sealing 340
Molding structure.Interconnecting piece 310 in a rectangular parallelepiped shape, has the mating surface cooperated with mounting plate 500, installation through-hole and jackscrew through-hole are equal
Set on mating surface, the axis of jackscrew through-hole and the axis of installation through-hole are parallel to each other, and axis and mating surface with support shaft 100
Vertically.When thrust wheel is installed on walker, the end face of the mounting plate 500 in the mating surface and walker on interconnecting piece 310 is pasted
It closing, bolt passes through the threaded hole on installation through-hole and mounting plate 500 from the side away from mounting plate 500 of interconnecting piece 310 and cooperates,
Thrust wheel is installed on mounting plate 500.When dismantling thrust wheel, jackscrew and jackscrew through-hole cooperate to mounting plate 500 and interconnecting piece
The end faces of 310 contacts generate active forces, eject thrust wheel out of mounting plate 500 upper groove, thus by thrust wheel from walker
Under upper disassembly.The axis of jackscrew through-hole and the axis of installation through-hole are parallel to each other, the installation and removal of more convenient thrust wheel.
Further, the diameter of jackscrew through-hole is equal to the diameter of installation through-hole.When dismantling thrust wheel, unloaded out of installation through-hole
Under screw can be directly used in jackscrew through-hole, cooperate with jackscrew through-hole and eject thrust wheel out of mounting plate 500 groove, side
Just the disassembly of thrust wheel.
The quantity of installation through-hole and the quantity of jackscrew through-hole can be one or more, in the present embodiment, installation through-hole
Quantity and the quantity of jackscrew through-hole are two.Specifically, installation through-hole includes the first installation through-hole 321 and the second installation through-hole
322, jackscrew through-hole includes the first jackscrew through-hole 331 and the second jackscrew through-hole 332, and the first installation through-hole 321 and the second installation are logical
Hole 322 is between the first jackscrew through-hole 331 and the second jackscrew through-hole 332.
As shown in Fig. 2, the axisymmetrical of the first installation through-hole 321 and the second installation through-hole 322 relative to support shaft 100,
First jackscrew through-hole 331 is located at the side far from the second installation through-hole 322 of the first installation through-hole 321, the second jackscrew through-hole 332
Positioned at the first side far from the first installation through-hole 321 of the second installation through-hole 322, the axis and second of the first installation through-hole 321
The axisymmetrical of the coaxial relationship wheel body 200 of installation through-hole 322, the first jackscrew through-hole 331 and the second jackscrew through-hole 332 are about wheel
The axisymmetrical of body 200.The axis of first installation through-hole 321, the axis of the second installation through-hole 322, the first jackscrew through-hole 331
The axis of axis and the second jackscrew through-hole 332 is parallel to each other.Thrust wheel passes through two installations about 100 axisymmetrical of support shaft
Through-hole is installed on mounting plate 500, improves the stability of thrust wheel installation.When dismantling thrust wheel, by two about 200 axis of wheel body
When symmetrical jackscrew through-hole ejects thrust wheel out of groove, it can be produced by different parts of two jackscrew through-holes to thrust wheel
Raw active force, is easier to eject thrust wheel out of groove.
In the related technology, to be provided with lubrication hole in support shaft 100 to sliding bearing 130 and the lubrication of floating seal 120,
It generates stress around lubrication hole to concentrate, in use process, in stress raiser easy fracture and damage.In order to alleviate the above problem,
In the present embodiment, fixed frame 300 is equipped with oil filler point 410, and wheel body 200 is equipped with the oil transportation hole being connected to oil filler point 410, oil transportation hole edge
The length direction of wheel body 200 runs through wheel body 200.
As shown in Figure 1, the fixed frame 300 of one end of wheel body 200 is equipped with oil filler point 410, oil filler point 410 is along fixed frame
300 axis direction runs through fixed frame 300, for being connected to gap external and between fixed frame 300 and wheel body 200；Oil transportation
Hole is set in the side wall of wheel body 200, and wheel body 200 is run through along the axis direction of wheel body 200 in oil transportation hole, and oil transportation hole is for being connected to wheel body
The gap for being used to accommodate floating seal 120 at 200 both ends.By the oil filler point 410 on fixed frame 300, lubricating oil is injected into Zhi Chong
Wheel, lubricating oil pass through first oil filler point 410 enter close to 410 side of oil filler point floating seal 120, subsequently into fixing axle with
Gap between sliding bearing 130, and by oil transportation hole reach the other end fixed frame 300 and sliding bearing 130 between
At the floating seal 120 of gap and the other end, to play lubricating action to thrust wheel inside.Oil filler point is arranged in fixed frame 300
410, oil transportation hole is arranged in wheel body 200, realizes to thrust wheel internal lubrication, and avoids support shaft 100 due to generating stress and concentrating
Damage.
Further, the inner wall of wheel body 200 is equipped with oil groove 430, and oil groove 430 is connected to oil transportation hole.
As shown in Figure 1, oil groove 430 is set to the middle part of 200 inner wall of wheel body, along the circumferentially extending of wheel body 200.Oil groove 430
The axis of rectangular in cross-section, oil transportation hole intersects with the side wall of oil groove 430.The inner wall of sliding bearing 130 is equipped with along sliding bearing 130
The input oil groove that extends of axis direction, input oil groove is connected to the oil groove 430 on wheel body 200.
The end of the close wheel body 200 of oil filler point 410 is equipped with the branched hole being connected to oil filler point 410, the axis of branched hole
Direction is vertical with the axis direction of oil filler point 410, and branched hole runs through the side wall of fixed frame 300, for being connected to the floating of corresponding side
The sealing 120 and gap between fixed frame 300 and support shaft 100, when at lubricating oil flow to branched hole, lubricating oil can be along difference
Direction flow into thrust wheel in, increase lubrication area, improve lubricant effect.
By the oil filler point 410 on fixed frame 300 lubricating oil is injected into thrust wheel, lubricating oil passes through fixed frame 300 first
On oil filler point 410 enter side floating seal 120；Then pass through fixed frame 300 and support shaft 100, fixed frame 300 and floating
Gap between sealing 120 reaches the gap between fixed frame 300 and sliding bearing 130, makes fixed frame 300 and sliding bearing
Oil film is formed between 130, achievees the purpose that lubrication, prevents from rubbing.Then lubricating oil passes through the oil transportation opened inside sliding bearing 130
Oil transportation hole inside slot and wheel body 200, into the oil groove 430 of wheel body 200；After lubricating oil reaches the oil groove 430 in wheel body 200,
Lubricating oil reaches other end fixed frame 300 and sliding by the input oil groove 430 in oil transportation hole and sliding bearing 130 on wheel body 200
At the gap of bearing 130 and floating seal 120.To make full of lubricating oil inside entire thrust wheel, when thrust wheel works from
To lubricating action.
Further, oil transportation hole includes the first oil transportation section 421 and the second oil transportation section 422, along the length direction of wheel body 200,
First oil transportation section 421 and the second oil transportation section 422 are located at the two sides of oil groove 430, the axis of the first oil transportation section 421 and the second oil transportation section
422 axis is staggered.
As shown in Figure 1, the first oil transportation section 421 is located at the left side of oil groove 430, for being connected to the floating of oil groove 430 and left side
Sealing 120.Second oil transportation section 422 is located at the right side of oil groove 430, for being connected to the floating seal 120 of oil groove 430 and right side.The
The axis of one oil transportation section 421 and the axis of the second oil transportation section 422 are parallel to each other and are staggered.The lubricating oil that oil filler point 410 injects is logical
It crosses the first oil transportation section 421 to flow in the oil groove 430 of wheel body 200, lubricating oil flows out in oil groove 430, flows to the second oil transportation
Enter the second oil transportation section 422 at the position that section 422 is connected to oil groove 430, the floating of the other end is flowed to by the second oil transportation section 422
Dynamic sealing 120.The axis of first oil transportation section 421 and the axis of the second oil transportation section 422 are staggered, by the first oil transportation section 421 into
Enter the lubricating oil in oil groove 430 and enter the second oil transportation section 422 after circumferential flow a distance of oil groove 430, increases thrust wheel
The amount of interior lubricating oil is preferably lubricated thrust wheel inside.
Further, the axis pair of the axis of the first oil transportation section 421 and the axis of the second oil transportation section 422 about wheel body 200
Claim.As shown in Figure 1, the axis of the first oil transportation section 421, the axis of the second oil transportation section 422 and the axis of wheel body 200 are located at same put down
In face.The axis of first oil transportation section 421 is located at the lower section of support 200 axis of wheel body, and the axis of the second oil transportation section 422 is located at wheel body
The top of 200 axis.The axisymmetrical of the axis of first oil transportation section 421 and the axis of the second oil transportation section 422 about wheel body 200,
Extending lubrication has the distance flowed in oil groove 430, increases the amount of lubricating oil in thrust wheel, preferably carries out to thrust wheel inside
Lubrication.
Further, one end of oil filler point 410 is equipped with plug screw 411.Specifically, the inlet of oil filler point 410 is equipped with interior spiral shell
Line, plug screw 411 are equipped with the external screw thread with the screw-internal thread fit of oil filler point 410.The mode that plug screw 411 is connected through a screw thread is installed
In the inlet of oil filler point 410, the outflow of lubrication oil in thrust wheel is prevented, and prevent introduced contaminants from entering inside thrust wheel,
Thrust wheel inside is damaged.
The purpose of the utility model embodiment further includes providing a kind of development machine, is not easy with alleviating thrust wheel in the related technology
Technical problem under being dismantled from the thrust wheel mounting plate to get rusty.
Development machine provided by the embodiment of the utility model, including above-mentioned thrust wheel.
Specifically, development machine includes walker, walker is equipped with the mounting plate 500 for installing thrust wheel, mounting plate
500 have the mounting surface for installing thrust wheel, and mounting surface is equipped with the threaded hole cooperated with installation through-hole.It is also set on mounting surface
There is a groove for limiting thrust wheel, the part in addition to interconnecting piece 310 of wheel body 200 and fixed frame 300 is located in groove, row
It walks frame mounting plate 500 and axial limiting is carried out to fixed frame 300, to guarantee that floating seal 120 works normally required gap, also
It can guarantee required gap between sliding bearing 130 and fixed frame 300.Bolt is from the side away from mounting plate 500 of fixed frame 300
Threaded hole on installation through-hole and mounting plate 500 cooperates, and thrust wheel is installed on mounting plate 500.
Thrust wheel and development machine provided by the embodiment of the utility model, thrust wheel include: support shaft 100, wheel body 200 and consolidate
Determine frame 300, wheel body 200 is sheathed on the periphery of support shaft 100, and is rotatablely connected with support shaft 100；The both ends of support shaft 100 are equal
It is fixedly connected with fixed frame 300, fixed frame 300 has interconnecting piece 310, and interconnecting piece 310 is equipped with installation through-hole and jackscrew through-hole.Branch
Roller can be installed on the mounting plate 500 of walker by bolt, specifically, bolt passes through the installation through-hole on fixed frame 300
Thrust wheel is installed on mounting plate 500.When thrust wheel, which breaks down, to be needed replacing or repair, by Connection Bracket 300 with
The bolt of mounting plate 500 is backed out, and jackscrew through-hole can be such that jackscrew screws in, and jackscrew and jackscrew through-hole cooperate to the generation work of mounting plate 500
Firmly, the active force between jackscrew and walker ejects thrust wheel out of mounting plate 500 upper groove, thus by thrust wheel from row
It walks under being dismantled on frame.
Compared with the relevant technologies, when thrust wheel provided by the embodiment of the utility model need to be dismantled, without explosive blasting,
Safety when easy to disassemble and raising disassembly.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model embodiment, rather than
It is limited；Although the utility model embodiment is described in detail referring to foregoing embodiments, this field it is common
Technical staff is it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, or to wherein
Some or all of technical characteristic is equivalently replaced；And these are modified or replaceed, and do not make the essence of corresponding technical solution
It is detached from the range of each embodiment technical solution of the utility model embodiment.
Claims (10)
1. a kind of thrust wheel characterized by comprising support shaft, wheel body and fixed frame, the wheel body are sheathed on the support shaft
Periphery, and with the support shaft be rotatablely connected；
The both ends of the support shaft are fixedly connected to the fixed frame, and the fixed frame has interconnecting piece, and the interconnecting piece is set
There are installation through-hole and jackscrew through-hole.
2. thrust wheel according to claim 1, which is characterized in that the axis of the jackscrew through-hole and the installation through-hole
Axis is parallel.
3. thrust wheel according to claim 1, which is characterized in that the diameter of the jackscrew through-hole is equal to the installation through-hole
Diameter.
4. thrust wheel according to claim 1, which is characterized in that the installation through-hole includes the first installation through-hole and second
Installation through-hole, the jackscrew through-hole include the first jackscrew through-hole and the second jackscrew through-hole, first installation through-hole and described the
Two installation through-holes are between the first jackscrew through-hole and the second jackscrew through-hole.
5. thrust wheel according to claim 1, which is characterized in that the fixed frame is equipped with oil filler point, and the wheel body is equipped with
The wheel body is run through along the length direction of the wheel body in the oil transportation hole being connected to the oil filler point, the oil transportation hole.
6. thrust wheel according to claim 5, which is characterized in that the inner wall of the wheel body be equipped with oil groove, the oil groove with
The oil transportation hole connection.
7. thrust wheel according to claim 6, which is characterized in that the oil transportation hole includes the first oil transportation section and the second oil transportation
Section, along the length direction of the wheel body, the first oil transportation section and the second oil transportation section are located at the two sides of the oil groove, described
The axis of first oil transportation section and the axis of the second oil transportation section are staggered.
8. thrust wheel according to claim 7, which is characterized in that the axis of the first oil transportation section and second oil transportation
Axisymmetrical of the axis of section about the wheel body.
9. thrust wheel according to claim 5, which is characterized in that one end of the oil filler point is equipped with plug screw.
10. a kind of development machine, which is characterized in that including the described in any item thrust wheels of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821887586.8U CN209192077U (en) | 2018-11-15 | 2018-11-15 | Thrust wheel and development machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821887586.8U CN209192077U (en) | 2018-11-15 | 2018-11-15 | Thrust wheel and development machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209192077U true CN209192077U (en) | 2019-08-02 |
Family
ID=67411869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821887586.8U Active CN209192077U (en) | 2018-11-15 | 2018-11-15 | Thrust wheel and development machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209192077U (en) |
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2018
- 2018-11-15 CN CN201821887586.8U patent/CN209192077U/en active Active
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