CN109940051A - Big stick cooling bed bed surface anti-deflection device - Google Patents
Big stick cooling bed bed surface anti-deflection device Download PDFInfo
- Publication number
- CN109940051A CN109940051A CN201910249782.5A CN201910249782A CN109940051A CN 109940051 A CN109940051 A CN 109940051A CN 201910249782 A CN201910249782 A CN 201910249782A CN 109940051 A CN109940051 A CN 109940051A
- Authority
- CN
- China
- Prior art keywords
- bed
- positioning beam
- big stick
- bed surface
- cooling bed
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 57
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 230000001050 lubricating effect Effects 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 101100441413 Caenorhabditis elegans cup-15 gene Proteins 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
Abstract
The invention discloses a kind of big stick cooling bed bed surface anti-deflection devices, including concrete foundation, positioning seat and positioning beam；One end of the concrete foundation is fixedly connected with the ground, and the other end of the concrete foundation is fixedly connected with the positioning seat；The separate concrete foundation end of the positioning seat is provided with holding tank, described positioning beam one end is located in the holding tank, the positioning beam can move freely in the holding tank, and the other end of the positioning beam is connected on crossbeam, and the crossbeam is the crossbeam on big stick cooling bed.The present invention solves the problems, such as that sideslip occurs for cold bed bed surface, has production simply, easy for installation, the high advantage of bearing strength.
Description
Technical field
The present invention relates to technical field of steel rolling, in particular to a kind of big stick cooling bed bed surface anti-deflection device.
Background technique
In Steel-rolling Industry, the external diametrical extent of product specification is known as big stick-means of intimidation to the rolling line between 300mm in 150mm and is rolled
Line, and in big stick-means of intimidation binding, generally use big stick cooling bed to temperature 800 DEG C of -1000 DEG C of scale bars carry out it is cooling, align and
Transport, obtains temperature in 200 DEG C of low temperature scale bars below, then low temperature scale bar is further processed by other devices
And forging.
Common big stick cooling bed includes lifting bed surface and traversing bed surface, by the way that lifter rack and level cross are arranged on bed surface
Rack gear is moved, and by two-motors excitation lifter rack and horizontal shifting rack gear, then move on bed surface by rack drives bar,
To complete cooling, aligning and the transport of bar.However, since the bed surface of big stick cooling bed is easy discontinuity, and bed surface
For a long time by high-temperature baking, bed surface is easily deformed, and the influence of the factors such as manufacture, installation error, and bar is in rack gear
When upper mobile, sideslip may occur for the bed surface of big stick cooling bed, to will affect the normal use of equipment.Based on this, big stick-means of intimidation is cold
The bed surface of bed is needed with deviation prevention function.
Summary of the invention
The object of the present invention is to provide a kind of big stick cooling bed bed surface anti-deflection devices, and which solve cold bed bed surfaces, and sideslip occurs
Problem, the present apparatus have production simply, easy for installation, the high advantage of bearing strength.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of big stick cooling bed bed surface anti-deflection device, including concrete foundation, positioning seat and positioning beam；One end of the concrete foundation
It is fixedly connected with the ground, the other end of the concrete foundation is fixedly connected with the positioning seat；The separate concrete foundation of the positioning seat
End is provided with positioning beam holding tank, and described positioning beam one end is located in the positioning beam holding tank, and the positioning beam can be described
It is moved freely in positioning beam holding tank, the other end of the positioning beam is connected on crossbeam, and the crossbeam is arranged in big stick cooling bed
On.
By adopting the above technical scheme, crossbeam movement is driven when big stick cooling bed moves, crossbeam movement drives positioning beam positioning
It is moved in the positioning beam holding tank of seat.When cold bed bed surface is because by biasing force by offset is generated, crossbeam is also by biasing force, crossbeam
Biasing force is passed into positioning beam, but positioning beam, due to the restriction of the positioning beam holding tank of positioning seat, positioning beam passes biasing force
Positioning seat is passed, biasing force is transmitted to concrete foundation again by positioning seat, and concrete foundation is offset biasing force by reaction force, to play
Prevent the effect of cold bed bed surface sideslip.
Further preferably are as follows: the positioning seat is the axially symmetric structure being formed by welding by steel plate；The positioning seat includes
Matrix is relatively set with the first plate face and the second plate face in described matrix, is symmetrically arranged with the first steel plate in first plate face
With the second steel plate, first steel plate, second steel plate and first plate face connect and compose the positioning beam holding tank,
Extend a boss in second plate face, concrete foundation holding tank is provided in the concrete foundation and the boss cooperates.
By adopting the above technical scheme, positioning seat and concrete foundation are fitted close, and positioning seat passes through steel plate design positioning beam
The power come effectively passes to concrete foundation, and anti-bias effect is more preferable, and the service life is longer for device.
Further preferably are as follows: slide plate is removably connected on two inner sidewalls of the positioning beam holding tank respectively, it is described fixed
Position beam moves freely between the slide plate.
By adopting the above technical scheme, the positioning beam holding tank of positioning seat is the most easily worn position of the present apparatus, by removable
Unload installation slide plate, when device use, only wears slide plate, and using slide plate is only needed to change after some cycles, device can be used for a long time,
Production cost is saved.
Further preferably are as follows: a through-hole is provided in the middle part of the slide plate, one end of the through-hole is connected with oil groove, described logical
The other end in hole is connected with lubricating cup, has drier oil in the oil groove, the through-hole and the lubricating cup.
By adopting the above technical scheme, oil groove is connected to by through-hole with lubricating cup, constitutes a circuit, when the oil in oil groove is finished
Afterwards, lubricating cup can give oil groove makeup oil in time, it is not necessary to manual operation, it is time saving and energy saving, and go back save the cost.Drier oil has good control simultaneously
The advantages of flow processed, environmental protection and suitable heavy load.Slide plate uses dry oil lubrication, not only reduces frictional force, extends slide plate
Service life, and environmental protection, facilitate operation.
Further preferably are as follows: the oil groove is evenly distributed on slide plate working face.
By adopting the above technical scheme, equally distributed oil groove can allow drier oil more sufficiently comprehensive to slide plate lubrication.
Further preferably are as follows: the slide plate is made of spheroidal graphite cast-iron.
By adopting the above technical scheme, spheroidal graphite cast-iron has the advantages that intensity is high, wearability is good, the slide plate of spheroidal graphite cast-iron more resistant to
With.
Further preferably are as follows: the positioning beam includes connecting plate and positioning beam ontology, and the connecting plate and the crossbeam connect
It connects, is fixedly installed with positioning beam slab on the two sides of the relatively described slide plate of positioning beam ontology.
By adopting the above technical scheme, by installing positioning beam slab in positioning beam, the toughness of positioning beam is enhanced, makes to position
Beam is more durable.
Further preferably are as follows: have the gap 1-3mm between the slide plate and the positioning beam slab.
By adopting the above technical scheme, by gap setting, when big stick cooling bed does not shift, positioning beam not with positioning beam
Holding tank and slide plate contact, not by frictional force when positioning beam moves in positioning beam holding tank, movement is more smooth.When positioning beam by
When to biasing force, positioning beam slab is contacted with slide plate, but contact area is small, and the frictional force that when positioning beam movement is subject to is small.
A kind of big stick cooling bed, the crossbeam being oppositely arranged including 2 and 2N big stick cooling bed bed surface anti-deflection device, N be greater than
Integer equal to 1, it is characterised in that: the big stick cooling bed bed surface anti-deflection device be equally divided into two groups be symmetrically arranged in it is described
On 2 crossbeams being oppositely arranged；Two big stick cooling bed bed surface anti-deflection devices being oppositely arranged are on the big stick cooling bed
Place-centric point line is parallel to big stick cooling bed bed surface center line.
By adopting the above technical scheme, by being symmetrical arranged big stick cooling bed bed surface anti-deflection device in big stick cooling bed bed surface two sides,
Effectively prevent big stick cooling bed bed surface sideslip.
Further preferably are as follows: 2 crossbeams being oppositely arranged are traversing bed surface crossbeam or lifting bed surface crossbeam.
By adopting the above technical scheme, can traversing bed surface to big stick cooling bed or lifting bed surface carry out respectively anti-bias, prevent
Inclined effect is more preferable.
Detailed description of the invention
Fig. 1 is the concrete structure schematic diagram of the big stick cooling bed bed surface anti-deflection device of embodiment；
Fig. 2 is the concrete structure schematic diagram of the positioning seat of big stick cooling bed bed surface anti-deflection device；
Fig. 3 is the concrete structure schematic diagram of the slide plate of big stick cooling bed bed surface anti-deflection device；
Fig. 4 is the concrete structure schematic diagram of the positioning beam of big stick cooling bed bed surface anti-deflection device；
Fig. 5 is the specific location schematic diagram that big stick cooling bed bed surface anti-deflection device is installed on cold bed；
In figure, 1, concrete foundation；2, positioning seat；3, positioning beam；4, positioning beam holding tank；5, crossbeam；6, matrix；7, the first plate
Face；8, the second plate face；9, the first steel plate；10 second steel plates；11, boss；12, slide plate；13, through-hole；14, oil groove；15, lubricating cup；
16, slide plate working face；17, connecting plate；18, positioning beam ontology；19, beam slab is positioned；20, concrete foundation holding tank；100, big stick-means of intimidation is cold
Bed bed surface anti-deflection device.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
As shown in Figs 1-4, a kind of big stick cooling bed bed surface anti-deflection device 100, including concrete foundation 1, positioning seat 2 and positioning beam
3.The concrete foundation 1 is poured on the ground by cast-in-place, the separate ground surface end of the concrete foundation 1 and the fixed company of the positioning seat 2
It connects, the positioning seat 2 is fixedly mounted in the concrete foundation 1 by foundation bolt.1 end of separate concrete foundation of the positioning seat 2
It is provided with positioning beam holding tank 4, described 3 one end of positioning beam is located in the positioning beam holding tank 4, and the positioning beam 3 can be in institute
It states and is moved freely in positioning beam holding tank 4；The other end of the positioning beam 3 is fixedly connected on crossbeam 5, and the crossbeam 5 is arranged
On big stick cooling bed.
The positioning seat 2 is the axially symmetric structure being formed by welding by steel plate.The positioning seat 2 includes matrix 6, the base
Body 6 is formed by welding by steel plate.The first plate face 7 and the second plate face 8 are relatively set in described matrix 6, in first plate face 7
It is symmetrically arranged with the first steel plate 9 and the second steel plate 10, first steel plate 9, second steel plate 10 and first plate face 7
Connect and compose the positioning beam holding tank 4；I.e. described first steel plate 9 and second steel plate 10 constitute the positioning beam holding tank
4 two sidewalls, the middle part of first plate face 7 are the bottom of the positioning beam holding tank 4.Extend in second plate face 8
One boss 11, the boss 11 are formed by welding with steel plate.Concrete foundation holding tank 20 and the boss are provided in the concrete foundation 1
11 cooperations.When installing positioning seat 2, after first the boss 11 of the positioning seat 2 and the concrete foundation holding tank 20 cooperation are positioned,
By foundation bolt that the positioning seat 2 and the concrete foundation 1 is fixed again, installation in this way is more convenient, and anti-bias effect is also more preferable.
Slide plate 12 is bolted on two inner sidewalls of the positioning beam holding tank 4 respectively, the positioning beam 3 is in institute
It states and moves freely between slide plate 12.The slide plate 12 is made of spheroidal graphite cast-iron, and the slide plate 12 described in this way is more wear resistant.In the slide plate 12
Portion is provided with a through-hole 13, and one end of the through-hole 13 is communicated with oil groove 14, and the other end of the through-hole 13 is communicated with lubricating cup 15,
For the lubricating cup 15 using the lubricating cup 15 of JB/T7940.1 standard, the through-hole diameter of the through-hole 13 is 10mm.The oil groove 14, institute
Stating in through-hole 13 and the lubricating cup 15 has drier oil, and when the drier oil in the oil groove 14 requires supplementation with, the lubricating cup 15 can
Drier oil is supplemented to the oil groove 14 by the through-hole 13.The oil groove 14 is evenly distributed on slide plate working face 15.
The positioning beam 3 includes connecting plate 17 and positioning beam ontology 18, and the connecting plate 16 is welded on the positioning beam sheet
On body 18.The connecting plate 17 is fixedly connected by bolt with the crossbeam 5.The relatively described slide plate 12 of the positioning beam ontology 17
Two sides on by fillet welding be fixedly connected with positioning beam slab 19, the positioning beam slab 19 be 16Mn steel plate.The slide plate 12 with
There is the gap 1mm between the positioning beam slab 19.
Working principle: cold bed drives the crossbeam 5 to move when moving, and the movement of crossbeam 5 drives the positioning beam 3 in institute
State movement in positioning beam holding tank 4.When cold bed bed surface shifts, biasing force is passed to the positioning beam by the crossbeam 5
3, the positioning beam 3 generates micro offset and contacts with the slide plate 12 in the positioning beam holding tank 4, biasing force is not passed to institute
Slide plate 12 is stated, offset external force is passed to the positioning seat 2 again by the slide plate 12, and offset external force is transmitted to by the positioning seat 2 again
The concrete foundation 1, the concrete foundation 1 will deviate external force by reaction force and offset.Cold bed bed surface sideslip is prevented to play
Effect.
As described in Figure 5, a kind of big stick cooling bed, including 2 the traversing bed surface crossbeams being oppositely arranged, 2 liters being oppositely arranged
Bed surface crossbeam and 4 big stick cooling bed bed surface anti-deflection devices 100 drop.100 two one group of the big stick cooling bed bed surface anti-deflection device,
It is divided into two groups, is separately mounted on the traversing bed surface crossbeam and the lifting bed surface crossbeam.4 big stick cooling bed bed surfaces are anti-
Deflection device 100 is located at the midpoint of the traversing bed surface crossbeam and the lifting bed surface crossbeam, and 4 big stick-means of intimidation are cold
Bed bed surface anti-deflection device 100 is located in a straight line, and this straight line parallel is in the center line of the big stick cooling bed.By right
Claim that the big stick cooling bed bed surface anti-deflection device 100, and anti-bias to the lifting bed surface of big stick cooling bed and traversing bed surface respectively, institute is arranged
The anti-bias effect for stating big stick cooling bed bed surface anti-deflection device 100 is more preferable.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the protection scope of invention.
Claims (10)
1. a kind of big stick cooling bed bed surface anti-deflection device (100), it is characterised in that: including concrete foundation (1), positioning seat (2) and determine
Position beam (3)；One end of the concrete foundation (1) is fixedly connected with the ground, the other end and the positioning seat of the concrete foundation (1)
(2) it is fixedly connected；Separate concrete foundation (1) end of the positioning seat (2) is provided with positioning beam holding tank (4), the positioning beam (3)
One end is located in the positioning beam holding tank (4), and the positioning beam (3) can move freely in the positioning beam holding tank (4),
The other end of the positioning beam (3) is connected on crossbeam (5), and the crossbeam (5) is arranged on big stick cooling bed.
2. big stick cooling bed bed surface anti-deflection device (100) according to claim 1, it is characterised in that: the positioning seat (2) is
The axially symmetric structure being formed by welding by steel plate；The positioning seat (2) includes matrix (6), and described matrix is relatively set on (6)
First plate face (7) and the second plate face (8) are symmetrically arranged with the first steel plate (9) and the second steel plate on first plate face (7)
(10), first steel plate (9), second steel plate (10) and first plate face (7) connect and compose the positioning beam and hold
It receives slot (4), extends a boss (11) on second plate face (8), be provided with concrete foundation holding tank on the concrete foundation (1)
(20) cooperate with the boss (11).
3. big stick cooling bed bed surface anti-deflection device (100) according to claim 1, it is characterised in that: the positioning beam accommodates
It is removably connected with respectively on two inner sidewalls of slot (4) slide plate (12), the positioning beam (3) is freely moved between the slide plate (12)
It is dynamic.
4. big stick cooling bed bed surface anti-deflection device (100) according to claim 3, it is characterised in that: in the slide plate (12)
Portion is provided with a through-hole (13), and one end of the through-hole (13) is connected with oil groove (14), the other end connection of the through-hole (13)
Have lubricating cup (15), has drier oil in the oil groove (14), the through-hole (13) and the lubricating cup (15).
5. big stick cooling bed bed surface anti-deflection device (100) according to claim 4, it is characterised in that: the oil groove (14) is equal
It is even to be distributed on slide plate working face (16).
6. big stick cooling bed bed surface anti-deflection device (100) according to claim 3, it is characterised in that: the slide plate (12) by
Spheroidal graphite cast-iron is made.
7. big stick cooling bed bed surface anti-deflection device (100) according to claim 3, it is characterised in that: positioning beam (3) packet
Connecting plate (17) and positioning beam ontology (18) are included, the connecting plate (17) connect with the crossbeam (5), the positioning beam ontology
(18) positioning beam slab (19) is fixedly installed on the two sides of the relatively described slide plate (12).
8. big stick cooling bed bed surface anti-deflection device (100) according to claim 7, it is characterised in that: the slide plate (12) with
There is the gap 1-3mm between the positioning beam slab (19).
9. a kind of big stick cooling bed, including 2 crossbeams being oppositely arranged (5) and 2N big stick cooling bed bed surface anti-deflection device (100), N
For the integer more than or equal to 1, it is characterised in that: the big stick cooling bed bed surface anti-deflection device (100) be equally divided into two groups it is uniformly right
Title is arranged on the crossbeam (5) that described 2 are oppositely arranged；Two big stick cooling bed bed surface anti-deflection devices being oppositely arranged
(100) the place-centric point line on the big stick cooling bed is parallel to big stick cooling bed bed surface center line.
10. big stick cooling bed according to claim 9, it is characterised in that: described 2 crossbeams (5) being oppositely arranged are traversing
Bed surface crossbeam or lifting bed surface crossbeam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910249782.5A CN109940051B (en) | 2019-03-29 | 2019-03-29 | Large bar cooling bed surface deviation preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910249782.5A CN109940051B (en) | 2019-03-29 | 2019-03-29 | Large bar cooling bed surface deviation preventing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109940051A true CN109940051A (en) | 2019-06-28 |
| CN109940051B CN109940051B (en) | 2024-04-05 |
Family
ID=67012941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910249782.5A Active CN109940051B (en) | 2019-03-29 | 2019-03-29 | Large bar cooling bed surface deviation preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109940051B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1396976A (en) * | 1972-11-28 | 1975-06-11 | Davy Loewy Ltd | Walking beam cooling beds |
| CN2751927Y (en) * | 2004-11-09 | 2006-01-18 | 邢台钢铁有限责任公司 | Cold-hearth guiding device |
| CN203470868U (en) * | 2013-09-05 | 2014-03-12 | 鞍钢股份有限公司 | Device for preventing cold bed migration deflection |
| CN204638733U (en) * | 2015-03-03 | 2015-09-16 | 中冶东方工程技术有限公司 | A kind of section steel cooling bed |
| CN204770544U (en) * | 2015-07-20 | 2015-11-18 | 宣化钢铁集团有限责任公司 | Oscillating hydraulic pressure turnover cooling bed |
| CN204770541U (en) * | 2015-07-20 | 2015-11-18 | 宣化钢铁集团有限责任公司 | Conticaster cold bed guider |
| CN205167481U (en) * | 2015-11-25 | 2016-04-20 | 宁波格林斯顿机械有限公司 | Slide lubricating arrangement |
| CN210115331U (en) * | 2019-03-29 | 2020-02-28 | 邯郸中威机械有限公司 | Bed surface deviation prevention device of large-stick cooling bed and large-stick cooling bed |
-
2019
- 2019-03-29 CN CN201910249782.5A patent/CN109940051B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1396976A (en) * | 1972-11-28 | 1975-06-11 | Davy Loewy Ltd | Walking beam cooling beds |
| CN2751927Y (en) * | 2004-11-09 | 2006-01-18 | 邢台钢铁有限责任公司 | Cold-hearth guiding device |
| CN203470868U (en) * | 2013-09-05 | 2014-03-12 | 鞍钢股份有限公司 | Device for preventing cold bed migration deflection |
| CN204638733U (en) * | 2015-03-03 | 2015-09-16 | 中冶东方工程技术有限公司 | A kind of section steel cooling bed |
| CN204770544U (en) * | 2015-07-20 | 2015-11-18 | 宣化钢铁集团有限责任公司 | Oscillating hydraulic pressure turnover cooling bed |
| CN204770541U (en) * | 2015-07-20 | 2015-11-18 | 宣化钢铁集团有限责任公司 | Conticaster cold bed guider |
| CN205167481U (en) * | 2015-11-25 | 2016-04-20 | 宁波格林斯顿机械有限公司 | Slide lubricating arrangement |
| CN210115331U (en) * | 2019-03-29 | 2020-02-28 | 邯郸中威机械有限公司 | Bed surface deviation prevention device of large-stick cooling bed and large-stick cooling bed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109940051B (en) | 2024-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109940051A (en) | Big stick cooling bed bed surface anti-deflection device | |
| CN210115331U (en) | Bed surface deviation prevention device of large-stick cooling bed and large-stick cooling bed | |
| CN202156727U (en) | High-strength heavy-load conveying chain for wide and thick plate | |
| CN203572200U (en) | Self-centering friction transmission lime rotary kiln | |
| CN107140378B (en) | A kind of cast stone scraping machine combined type scraper plate | |
| KR20010096434A (en) | Wheel running machine | |
| CN202701256U (en) | Combined-type lower crossbeam of forging hydraulic machine | |
| CN204320820U (en) | A kind of lifting skirt plate structure with edger roll | |
| CN209483554U (en) | A kind of plunger pump variable swash plate seat of friction and rolling compound action | |
| CN201309515Y (en) | Track plate of crawler crane | |
| CN108394671B (en) | Walking driving device for compact shelf | |
| CN202790173U (en) | Spherical roller ball-cage coupling | |
| CN202609762U (en) | Movable lifting device for lifting beam | |
| RU177421U1 (en) | FOUR-AXLE TRUCK CAR | |
| CN218435887U (en) | Direction changing device and chain grate machine | |
| CN205998896U (en) | A kind of machinery production small crane | |
| CN201093032Y (en) | Adjustable clearance chain | |
| RU2276217C1 (en) | Bridge roller support | |
| CN110294291A (en) | Swing type scraper | |
| CN212058235U (en) | Backing plate mounting structure of rotary kiln | |
| CN201293071Y (en) | Steel drag chain with positioning block | |
| CN202829433U (en) | Structure of sprocket shaft of electric pump chain hoist | |
| CN201932655U (en) | Sprocket type tension pulley of precision forging | |
| CN211107759U (en) | Sectional type steel track pin bush and steel track capable of being exchanged with rubber track | |
| CN215567663U (en) | Self-adjustable hollow pin shaft chain |
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 |