CN108755286A - A kind of height is adjustable, shock resistance, high temperature resistant rail clip - Google Patents
A kind of height is adjustable, shock resistance, high temperature resistant rail clip Download PDFInfo
- Publication number
- CN108755286A CN108755286A CN201810708644.4A CN201810708644A CN108755286A CN 108755286 A CN108755286 A CN 108755286A CN 201810708644 A CN201810708644 A CN 201810708644A CN 108755286 A CN108755286 A CN 108755286A
- Authority
- CN
- China
- Prior art keywords
- rail
- solderable
- pedestal
- group
- high temperature
- 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
- 230000035939 shock Effects 0.000 title claims abstract description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000003825 pressing Methods 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000011900 installation process Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000571 coke Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
- E01B9/44—Fastening the rail on the tie-plate
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
- E01B9/44—Fastening the rail on the tie-plate
- E01B9/46—Fastening the rail on the tie-plate by clamps
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
- E01B9/681—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Road Paving Structures (AREA)
- Railway Tracks (AREA)
Abstract
Adjustable, shock resistance that the present invention relates to a kind of height, high temperature resistant rail clip, including solderable pedestal, backing plate group, rubber mat plate, pressing plate and high-strength bolt fastener group, it is characterized in that, the solderable pedestal is equipped with groove, backing plate group, rubber mat plate and pressing plate are sequentially placed in groove from bottom to up, be attached by high-strength bolt fastener group and fastens composition rail clip.Compared with prior art, advantage is：Simple in structure, manufacturing cost is cheap, and connection fastening is reliable, the severe occasions of working environments such as alternative traditional plain edition rail clip is frequently necessary to adjust suitable for rail level absolute altitude, and more dirt, high temperature, impact force are big.
Description
Technical field
The present invention relates to a kind of rail fastening apparatus of coking technology field, the adjustable, anti-impact more particularly, to a kind of height
It hits, high temperature resistant rail clip.
Background technology
With the further development of industrial level, requirement of the rail engineering truck to its walking rails steps up, with refining
For the tamping coal-charging coke pusher (hereinafter referred to as SCP machines) used in the large stamping coke oven engineering of burnt technical field, coaling with
It needs to keep accurate relative position relation with coke oven door in coke-pushing process, therefore, the rail level absolute altitude precision of walking rails needs
It controls within ± 1mm/14m.Due to coke oven ontology and SCP machine track foundations settle it is uneven, it usually needs in track
Lower section pad applies steel plate (or rubber slab) of varying thickness to ensure that track meets above-mentioned requirements, leads to the length direction in track
On, the difference of local backing plate height can be more than even sometimes 15mm, therefore it is required that the adjustable range of rail clip height is big.Separately
Outside, SCP machines will generate track when fiddling with briquette larger impact force, and get over near-ambient temperature height apart from coke oven, this
Continuous shock loading increases the probability of fastener fastening failure, therefore, traditional plain edition track with higher environment temperature
Fastener has been unable to meet above-mentioned similar engineering requirement, there is an urgent need to research and develop it is a kind of it is simple in structure, adjustment is easy to maintenance, height is adjustable
And shock resistance, high temperature resistant, fastening is reliable, manufacture and the cheap rail clip of maintenance cost.
Invention content
To overcome prior art defect, adjustable, shock resistance that the technical problem to be solved by the present invention is to provide a kind of height, resistance to height
Warm rail clip, simple in structure, manufacturing cost is cheap, and connection fastening is reliable, and alternative traditional plain edition rail clip is applicable in
It is frequently necessary to adjust in rail level absolute altitude, the severe occasion of working environments such as more dirt, high temperature, impact force are big.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of height is adjustable, shock resistance, high temperature resistant rail clip, including solderable pedestal, backing plate group, rubber mat plate, pressure
Plate and high-strength bolt fastener group, which is characterized in that the solderable pedestal is equipped with groove, in groove from bottom to up successively
Backing plate group, rubber mat plate and the pressing plate are placed, be attached by the high-strength bolt fastener group and fastens structure
At rail clip.
The solderable pedestal is to impact the integral structural member that material is constituted by heat-resistant, and wherein groove floor is equipped with two
A slotted hole T-slot is symmetrically " toed-out " shape arrangement along center line, and one end is unlimited.
The pressing plate is to impact the steel construction piece that constitutes of material by heat-resistant, and one end sets that there are two parallel and open oval
Hole slot, the one side of the other end is equipped with matches consistent chamfering B with rail flange of rail gradient.
The backing plate group is made of several blocks of steel plates of varying thickness, there are two circular hole on every block of steel plate, according to installing
Different combining form (including quantity and thickness) may be selected in actual demand in journey.
The rubber mat plate uses oil resistant rubber, shape consistent with the backing plate group.
The high-strength bolt fastener group is by high-strength bolt (8.8 grades), nut (8 grades), plain washer and elastic washer
Composition.
Further, it is the sum of the thickness of all steel plates in backing plate group in the upper-bound theory of the height adjustment range of rail clip
The thickness of+rubber mat plate.
A kind of height is adjustable, shock resistance, the use of high temperature resistant rail clip and installation maintenance method, including：
1) rail clip described in uses in pairs, is symmetrically arranged in the both sides of rail.
2) solderable pedestal is symmetrically arranged in rail both sides, between solderable pedestal and rail preset clearance t be 1~
2mm, and the open end that solderable base recess bottom surface is equipped with slotted hole T-slot is made to weld solderable pedestal far from rail
It is fixed (welding is not had to close to the inside of rail) on the pre-buried bottom plate below rail.
3) rail level absolute altitude is adjusted.
4) open end by high-strength bolt along solderable pedestal slotted hole T-slot is pushed into.
5) backing plate group appropriate is selected according to rail level absolute altitude.
6) backing plate group, rubber mat plate, pressing plate, plain washer and elastic washer are sequentially passed through into high-strength bolt, nut is pre- to twist
It is tight.
7) play pressing plate makes it have the end face of chamfering B to be fitted closely with rail flange of rail face, and steel can be fixed by tightening nut
Rail.
8) need repairing adjustment rail level absolute altitude when, nut and washer are removed first, further according to actual conditions adjusting pad board group
Combination, repeat step 5)~7) can be completed rail level absolute altitude adjustment repair.
Compared with prior art, the beneficial effects of the invention are as follows：
1) height adjustment range is big, and rail clip can accurately be adjusted in the range of backing plate group overall thickness, adjustable range
Upper-bound theory on for the sum of thickness of all steel plates in backing plate group+rubber mat plate thickness；
2) setting of slotted hole T-slot facilitates the installation of rail clip, dismounting on solderable pedestal, is suitble to rail level Pass line adjustment
Frequent occasion；
3) slotted hole T-slot is symmetrically " toed-out " shape arrangement along center line on solderable pedestal, improves rail clip
Transverse load impact force is resisted, while solderable pedestal, pressing plate that heat-resistant impact material is constituted substantially increase rail clip
Heat-resisting, impact resistance, may be particularly useful for the severe occasions of working environments such as more dirt, high temperature, impact force be big；
4) rubber mat plate can not only play the role of noise reduction damping, be pressed together under pressing plate by vulcanizing treatment with existing
Rubber pressure tongue compare, it is simpler reliable, and between pressing plate and backing plate group, not only increase the friction between contact surface
Power improves the bearing capacity of transverse load, is also less prone to aging and is corroded, and improves service life；
5) simple in structure, manufacturing cost is low, and connection fastening is reliable.
Description of the drawings
Fig. 1 is the principle of the present invention schematic construction explosive view；
Fig. 2 is the mounting structure principle schematic front view of the present invention；
Fig. 3 is the mounting structure principle diagrammatic top view of the present invention；
Fig. 4 is the portions A enlarged structure schematic diagram in Fig. 2；
Fig. 5 is the structural principle schematic front view of the solderable pedestal of the present invention；
Fig. 6 is the structural principle diagrammatic top view of the solderable pedestal of the present invention；
Fig. 7 is the mounting structure stereoscopic schematic diagram of the present invention.
In figure：1- high-strength bolt fastener group 11- nut 12- spring washer 13- plain washer 14- high-strength bolts
The pre-buried bottom plate 7- of the 2- pressing plate 3- rubber mat plate solderable pedestal 51- grooves 52- slotted holes T-slot 6- of 4- backing plate groups 5-
Track pad 8- tracks
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings：
As shown in Fig. 1~7, a kind of height of the present invention is adjustable, shock resistance, high temperature resistant rail clip, including it is solderable
Pedestal 5, backing plate group 4, rubber mat plate 3, pressing plate 2 and high-strength bolt fastener group 1 are connect, the solderable pedestal 5 is equipped with recessed
Slot 51 is sequentially placed backing plate group 4, rubber mat plate 3 and the pressing plate 2 in groove 51, passes through the high intensity from bottom to up
Bolt fastener group 1 is attached constitutes rail clip with fastening.
The solderable pedestal 5 is to impact the integral structural member that material is constituted by heat-resistant, and further groove is set on 51 bottom surface
There are two slotted hole T-slots 52, are symmetrically " toed-out " shape arrangement along center line, and one end is unlimited, and facilitates high intensity spiral shell
Bolt fastener group 1 therefrom penetrates, and will not be slid when by transverse load, substantially increases the resistance to of rail clip
Heat, impact resistance may be particularly useful for the severe occasions of working environments such as more dirt, high temperature, impact force be big.
The pressing plate 2 is to impact the steel construction piece that constitutes of material by heat-resistant, and one end sets that there are two parallel and open length
Circle hole groove facilitates it can small range play in the groove 51 of solderable pedestal 5；The one side of the other end is equipped with oblique with the rail flange of rail
Degree matches consistent chamfering B, is used cooperatively with the backing plate group 4, can ensure that pressing plate 2 is accurately bonded with rail 8.
The backing plate group 4 is made of several blocks of steel plates of varying thickness, there are two circular hole on every block of steel plate, according to installing
Different combining form (including quantity and thickness) may be selected in actual demand in journey, such as thickness is respectively 1mm, 2mm, 5mm
Each two pieces of steel plate, can be freely combined within the scope of 0~16mm.
The rubber mat plate 3 uses oil resistant rubber, shape consistent with the backing plate group 4.Rubber mat plate 3 can not only rise
To the effect of noise reduction damping, compared with the existing rubber pressure tongue being pressed together under pressing plate by vulcanizing treatment, structure and making side
Method is simpler, and in the frictional force between contact surface between pressing plate 2 and backing plate group 4, is not only increased, improves transverse load
Bearing capacity, be also less prone to aging and be corroded, improve service life.
The high-strength bolt fastener group 1 is by high-strength bolt 14 (8.8 grades), nut 11 (8 grades), plain washer 13 and bullet
Property washer 12 form.
Further, in the upper-bound theory of the height adjustment range of rail clip for the thickness of all steel plates in backing plate group 4 it
With the thickness of+rubber mat plate 3.
A kind of height is adjustable, shock resistance, high temperature resistant rail clip use installation maintenance method, including：
1) rail clip described in uses in pairs, is symmetrically arranged in the both sides of rail 8.
2) solderable pedestal 5 is symmetrically arranged in 8 both sides of rail, preset clearance t is 1 between solderable pedestal 5 and rail 8
~2mm (solderable pedestal weld firm then can play the role of limiting the buting iron of 8 horizontal looseness of rail), and makes solderable pedestal
5 groove, 51 bottom surface is equipped with the open end of slotted hole T-slot 52 far from rail 8, and solderable pedestal 5 is welded on 8 lower section of rail
Pre-buried bottom plate 6 on (do not have to welding close to the inside of rail 8) and fix.
3) rail level absolute altitude is adjusted, generally accurately adjusts rail by adjusting being useful for of being laid between rail 8 and pre-buried bottom plate 6
The track pad 7 (steel plate group or rubber slab) that the height of face absolute altitude does not wait.
4) open end by high-strength bolt 14 along solderable pedestal slotted hole T-slot 52 is pushed into.
5) backing plate group 4 (including quantity and thickness) appropriate is selected according to rail level absolute altitude.
6) backing plate group 4, rubber mat plate 3, pressing plate 2, plain washer 13 and elastic washer 12 are sequentially passed through into high-strength bolt 14,
11 pre-screwing of nut.
7) play pressing plate 2 makes it have the end face of chamfering B to be fitted closely with rail flange of rail face, and tightening nut 11 can fix
Rail 8.
8) need repairing adjustment rail level absolute altitude when, nut 11 and washer 12 and 13 are removed first, further according to actual conditions tune
The combination of whole backing plate group 4, repeat step 5)~7) can be completed rail level absolute altitude adjustment repair.
Claims (7)
1. a kind of height is adjustable, shock resistance, high temperature resistant rail clip, including solderable pedestal, backing plate group, rubber mat plate, pressing plate
With high-strength bolt fastener group, which is characterized in that the solderable pedestal is equipped with groove, is put successively from bottom to up in groove
Backing plate group, rubber mat plate and pressing plate are set, be attached by high-strength bolt fastener group and fastens composition rail clip.
2. a kind of height according to claim 1 is adjustable, shock resistance, high temperature resistant track button, which is characterized in that it is described solderable
It is to impact the integral structural member that constitutes of material by heat-resistant to connect pedestal, wherein sets that there are two slotted hole T-slot, edges in groove floor
Center line is symmetrically " toed-out " shape arrangement, and one end is unlimited.
3. a kind of height according to claim 1 is adjustable, shock resistance, high temperature resistant track button, which is characterized in that the pressing plate
To impact the steel construction piece that constitutes of material by heat-resistant, one end is set there are two parallel and open oval hole slot, and the one of the other end
Face is equipped with matches consistent chamfering B with rail flange of rail gradient.
4. a kind of height according to claim 1 is adjustable, shock resistance, high temperature resistant track button, which is characterized in that the backing plate
Group is made of several blocks of steel plates of varying thickness, and there are two circular holes on every block of steel plate, can according to the actual demand in installation process
Select different combining form (including quantity and thickness).
5. a kind of height according to claim 1 is adjustable, shock resistance, high temperature resistant track button, which is characterized in that the rubber
Backing plate uses oil resistant rubber, shape consistent with the backing plate group.
6. a kind of height according to claim 1 is adjustable, shock resistance, high temperature resistant track button, which is characterized in that rail clip
Height adjustment range upper limit value=backing plate group in all steel plates the sum of thickness+rubber mat plate thickness.
7. realizing a kind of adjustable height described in claim 1, shock resistance, the use of high temperature resistant rail clip and installation maintenance side
Method, which is characterized in that include the following steps：
1) rail clip described in uses in pairs, is symmetrically arranged in the both sides of rail.
2) solderable pedestal being symmetrically arranged in rail both sides, preset clearance t is 1~2mm between solderable pedestal and rail, and
Make the open end that solderable base recess bottom surface is equipped with slotted hole T-slot that solderable pedestal are welded on rail far from rail
It is fixed (welding is not had to close to the inside of rail) on the pre-buried bottom plate of lower section.
3) rail level absolute altitude is adjusted.
4) open end by high-strength bolt along solderable pedestal slotted hole T-slot is pushed into.
5) backing plate group appropriate is selected according to rail level absolute altitude.
6) backing plate group, rubber mat plate, pressing plate, plain washer and elastic washer are sequentially passed through into high-strength bolt, screw nut pre-screwing is
It can.
7) play pressing plate makes it have the end face of chamfering B to be fitted closely with rail flange of rail face, and rail can be fixed by tightening nut.
8) need repairing adjustment rail level absolute altitude when, nut and washer are removed first, further according to the group of actual conditions adjusting pad board group
Close, repeat step 5)~7) can be completed rail level absolute altitude adjustment repair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708644.4A CN108755286B (en) | 2018-07-02 | 2018-07-02 | Height-adjustable, shock-resistant and high-temperature-resistant track fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708644.4A CN108755286B (en) | 2018-07-02 | 2018-07-02 | Height-adjustable, shock-resistant and high-temperature-resistant track fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108755286A true CN108755286A (en) | 2018-11-06 |
| CN108755286B CN108755286B (en) | 2024-03-19 |
Family
ID=63975620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810708644.4A Active CN108755286B (en) | 2018-07-02 | 2018-07-02 | Height-adjustable, shock-resistant and high-temperature-resistant track fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108755286B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924240A (en) * | 2019-11-20 | 2020-03-27 | 广东交通职业技术学院 | Light rail clamp plate fixing device |
| CN112009191A (en) * | 2020-08-14 | 2020-12-01 | 东风商用车有限公司 | Leaf spring lug and install leaf spring suspension system of this leaf spring lug |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1489882A (en) * | 1974-10-26 | 1977-10-26 | Hixson R | Rail fastening assembly |
| CN201660813U (en) * | 2010-04-13 | 2010-12-01 | 于俭海 | Low-noise flexible track fixing device |
| CN102587228A (en) * | 2012-03-29 | 2012-07-18 | 莱芜美澳冶金科技有限公司 | Anti-loosing strong-anchoring fastener high in height adjustment |
| CN202688793U (en) * | 2012-06-27 | 2013-01-23 | 于俭海 | Transverse corona rubber cushion plate used in track fixing system |
| CN103590289A (en) * | 2013-11-26 | 2014-02-19 | 中铁二十局集团第五工程有限公司 | Epoxy plaster repaired bridge crane constructing structure and constructing method |
| CN203923821U (en) * | 2014-06-12 | 2014-11-05 | 中交第三航务工程勘察设计院有限公司 | Adapt to large displacement rails anchor structure |
| CN106758562A (en) * | 2017-04-08 | 2017-05-31 | 中国二十二冶集团有限公司 | The installation method that track foundation built-in fitting is integrally fixed with track |
| CN208777083U (en) * | 2018-07-02 | 2019-04-23 | 中冶焦耐(大连)工程技术有限公司 | A kind of height is adjustable, shock resistance, high temperature resistant rail clip |
-
2018
- 2018-07-02 CN CN201810708644.4A patent/CN108755286B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1489882A (en) * | 1974-10-26 | 1977-10-26 | Hixson R | Rail fastening assembly |
| CN201660813U (en) * | 2010-04-13 | 2010-12-01 | 于俭海 | Low-noise flexible track fixing device |
| CN102587228A (en) * | 2012-03-29 | 2012-07-18 | 莱芜美澳冶金科技有限公司 | Anti-loosing strong-anchoring fastener high in height adjustment |
| CN202688793U (en) * | 2012-06-27 | 2013-01-23 | 于俭海 | Transverse corona rubber cushion plate used in track fixing system |
| CN103590289A (en) * | 2013-11-26 | 2014-02-19 | 中铁二十局集团第五工程有限公司 | Epoxy plaster repaired bridge crane constructing structure and constructing method |
| CN203923821U (en) * | 2014-06-12 | 2014-11-05 | 中交第三航务工程勘察设计院有限公司 | Adapt to large displacement rails anchor structure |
| CN106758562A (en) * | 2017-04-08 | 2017-05-31 | 中国二十二冶集团有限公司 | The installation method that track foundation built-in fitting is integrally fixed with track |
| CN208777083U (en) * | 2018-07-02 | 2019-04-23 | 中冶焦耐(大连)工程技术有限公司 | A kind of height is adjustable, shock resistance, high temperature resistant rail clip |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924240A (en) * | 2019-11-20 | 2020-03-27 | 广东交通职业技术学院 | Light rail clamp plate fixing device |
| CN112009191A (en) * | 2020-08-14 | 2020-12-01 | 东风商用车有限公司 | Leaf spring lug and install leaf spring suspension system of this leaf spring lug |
| CN112009191B (en) * | 2020-08-14 | 2021-05-11 | 东风商用车有限公司 | Leaf spring lug and install leaf spring suspension system of this leaf spring lug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108755286B (en) | 2024-03-19 |
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