CN106704424A - Front damping spring for automobile and production technology of front damping spring - Google Patents
Front damping spring for automobile and production technology of front damping spring Download PDFInfo
- Publication number
- CN106704424A CN106704424A CN201710037204.6A CN201710037204A CN106704424A CN 106704424 A CN106704424 A CN 106704424A CN 201710037204 A CN201710037204 A CN 201710037204A CN 106704424 A CN106704424 A CN 106704424A
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- China
- Prior art keywords
- damping spring
- spring
- gum cover
- preceding damping
- spring body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/046—Wound springs with partial nesting of inner and outer coils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Springs (AREA)
Abstract
The invention discloses a front damping spring for an automobile. The front damping spring comprises a spring body formed by coiling a spring steel wire. One end of the spring body is a large end part, and the other end of the spring body is a small end part, wherein the inner diameter of the small end part is smaller than that of the large end part after coiling. The large end part is sleeved with a first rubber sleeve, and the small end part is sleeved with a second rubber sleeve. The second rubber sleeve is provided with an opening groove which is formed in the extending direction of the spring body. The inner wall of the second rubber sleeve is evenly provided with a hot melt adhesive coating. The front damping spring has the following beneficial effects that the first rubber sleeve and the second rubber sleeve are arranged at the two ends of the spring body correspondingly so that stress protection can be achieved on the front damping spring, the two ends of the front damping spring are not likely to be abraded, and the pressure intensity during stress can be reduced; and due to the hot melt adhesive coating, good stripping strength can be achieved between the second rubber sleeve and the spring body.
Description
Technical field
The present invention relates to spring art, the preceding damping spring and its production technology of more particularly to a kind of automobile.
Background technology
The front damper of automobile be mainly used to suppress spring shock-absorbing after rebound when concussion and the impact from road surface, warp
When crossing uneven road surface, although shock-absorbing spring can filter the vibrations on road surface, but spring itself also has a reciprocating motion, and preceding damping
Device jumps for suppressing this spring.During damping, preceding damping spring plays vital in damping
Effect.
Authorization Notice No. is CN201475222U, and authorized announcement date is that the Chinese patent on May 19 in 2010 discloses one
Kind of single cone suspension spring, including the spiral spring main body that a spring steel wire is coiled into, one end of described spring body
Spring body is bullet.
Although this single cone suspension spring can bear high-frequency reciprocating compression motion, and the bullet when greater impact is born
Collision between spring is difficult to send noise, but during use, the two ends of spring body directly and damper other
Location contacts, easily cause the abrasion of both ends of the spring.
The content of the invention
It is an object of the invention to provide a kind of front damper spring of automobile, glue is set by the two ends of spring body
Set so that the two ends of spring body are not easy to wear in use.
Above-mentioned technical purpose of the invention technical scheme is that：A kind of preceding damping bullet of automobile
Spring, including the spring body rolled by spring steel wire, one end of the spring body is big end, the spring body it is another
Hold to roll small end of the rear internal diameter less than big end, the first gum cover is arranged with the big end, be arranged in the small end
There is the second gum cover, be provided with second gum cover and offer open slot, described along the bearing of trend of the spring body
PUR coating is equipped with the inwall of two gum covers.
By using such scheme, the first gum cover and the second glue are respectively equipped with the big end of spring body and small end
Set, when spring body carries out flexible, the first gum cover and the second gum cover can increase the contact surface of spring body and other objects
Product, reduces pressure, it is also possible to protect big end and small end respectively so that the two ends of spring body do not result in abrasion；Simultaneously
Because the deformation that the small end of spring body is produced when flexible can be larger, so setting opening on the second gum cover of small end
Groove so that the deformation degree that the second gum cover occurs can be bigger, and the effect of its damping is more preferable；Simultaneously because the second gum cover is in spring sheet
The area that body with spring separate when flexible is larger, so being provided with PUR coating on the inwall of the second gum cover so that the second glue
Set has good peel strength with small end, it is to avoid together with the second gum cover is glutinous with small end.
The further setting of the present invention is：The surface spraying of the spring body has etch resistant layer.
By using such scheme, can cause that spring body has erosion-resisting performance in the etch resistant layer of spring body,
Spring body is avoided to corrode because of external environment condition problem.
The further setting of the present invention is：First gum cover is with second gum cover by polyurethane into described
The internal diameter of one gum cover is coated with the diameter after etch resistant layer less than the spring body, and the first gum cover stress occurs elastic shape
It is pushed against after change on the spring body, second gum cover forms internal diameter more than the spring sheet after being coated with PUR coating
Body is coated with the diameter after etch resistant layer.
By using such scheme, because spring body is in flexible deforming upon, the shape of the small end generation of spring body
Become larger, the deformation that big end occurs is smaller, so the first gum cover is directly set on big end and clamping, the coating of the second gum cover
Formation internal diameter is coated with the diameter after etch resistant layer more than spring body after having PUR coating so that the second gum cover is in use
Good deformation can occur.
The further setting of the present invention is：It is described for contradicting that the PUR coating is coated uniformly on second gum cover
On the end face of spring body, everywhere thickness of the PUR coating in the second gum cover is equal.
By using such scheme, PUR coating thickness everywhere is equal, it is to avoid because of the lump that PUR coating occurs
Stressing conditions when the influence small end such as carbuncle, fracture is deformed upon.
Production technology the present invention also aims to provide a kind of front damper spring of automobile.
Above-mentioned technical purpose of the invention technical scheme is that：It is a kind of to be weighed as claim 1 is arrived
Profit requires the production technology of the preceding damping spring of the automobile described in any claim in 4, comprises the following steps：S1：Beam worker
Sequence, the material of spring steel wire is 55CrSiA, and diameter 12-13mm, hardness is 50-51.5HRC；S2：Wind spring operation, using wind spring
Machine, the internal diameter for setting small end is Φ 79.5 ± 0.5, and big outer end diameter is Φ 139.5 ± 0.5, and the number of turns is 7.65 circles, freely long
456 ± 3mm of degree；S3：Tempering process, using meshbeltfurnace, design temperature is 380-420 DEG C, and the time is 50-65 minutes；S4：Shot-peening
Operation, using channel-type compressed air shotblasting machine, shot peening strength is more than 0.4A, and surface coverage is more than 90%；S5：Halt operation, using spring
Halt machine, preceding damping spring is depressed into and tight 3-4 times；S6：Phosphating operation operation；S7：Surface plastic spraying treatment process, by spray gun
Antistatic paint is sprayed onto etch resistant layer is formed behind the surface of preceding damping spring, and two ends end face in preceding damping spring is mended
Paint；S8：Set gum cover operation, the first gum cover is set on big end, and the second gum cover is set in small end, and the second gum cover exists
Open slot is towards the inside of preceding damping spring during installation；S9：Packaging process, preceding damping spring external application foam paper parcel, while
Separated by liner plate between preceding damping spring and preceding damping spring.
By using such scheme, in gum cover operation is covered, first can be respectively arranged with big end and small end
Gum cover and the second gum cover, so as to stress protection can be played in use in preceding damping spring；Simultaneously at surface plastic spraying science and engineering
Sequence, enables to antistatic paint to form etch resistant layer on the surface of preceding damping spring, with erosion-resisting effect, while because adopting
With antistatic paint so that preceding damping spring also has anlistatig effect；In packaging process, preceding damping spring foam paper
Parcel and separated with liner plate each other so that preceding damping spring is not in the phenomenon of abrasion in transportation.
The further setting of the present invention is：Need to carry out matting to preceding damping spring before the phosphating operation operation, clearly
It is the NaCaCO that 60-80 DEG C and mass fraction are 20% in temperature when washing operation3Taken out after 15min is soaked in solution, and in 60-
Point 3 rinsed cleans in 80 DEG C of hot water, and phosphating operation operation is carried out in 3h after the rinsing treatment.
By using such scheme, in matting, the greasy dirt on preceding damping spring surface and impurity can be carried out clearly
Reason, while carrying out phosphating operation operation after the rinsing treatment and in 3h, can avoid the surface of preceding damping spring from occurring getting rusty
Phenomenon.
The further setting of the present invention is：The first detection operation is carried out after phosphating operation operation, operation is detected first
In, by phosphatization after preceding damping spring be immersed in mass fraction be 5-10% NaCl solution in 20min, dried after taking-up, do not go out
Existing yellow rust is as qualified.
By using such scheme, first detection operation in, can to phosphatization after preceding damping spring detect, no
It is exactly that phosphating operation operation is qualified yellow rust occur, can continue to carry out the operation of next step.
The further setting of the present invention is：Load packet operation is also included after surface plastic spraying treatment process, by preceding damping
When spring is pressed in 270mm, required pressure is divided into first group for the preceding damping spring of 3060-3175N, and required pressure is 3175-
The preceding damping spring of 3270N is divided into second group, other defective works.
By using such scheme, load packet operation can be grouped to preceding damping spring so that subtract before same group
The performance for shaking spring is close, and when the preceding damping spring of same batch is changed on front damper, performance when using is more steady
It is fixed.
The further setting of the present invention is：In set gum cover operation, the material of the first gum cover and the second gum cover is polyurethane,
PUR coating is formed after applying hot melt adhesives in the second gum cover, in applying hot melt adhesives, is not allow for disconnecting and occurring lump
The phenomenon of carbuncle.
By using such scheme, by the applying hot melt adhesives in the second gum cover so that the second gum cover and small end it is de-
It is preferable from intensity；Simultaneously during applying hot melt adhesives, do not allow disconnection occur and pimple occur, it is to avoid receiving when small end is deformed upon
Power skewness.
The further setting of the present invention is：The second detection operation is also included between set gum cover operation and packaging process,
Preceding damping spring is compressed to by 135.5mm by forcing press, rigidity is measured, the rigidity of preceding damping spring is in 20 ± 0.6N/mm
It is certified products.
By using such scheme, second detection operation in, because rigidity it is larger when, preceding damping spring is not susceptible to shape
Become, when rigidity is smaller, be susceptible to deformation, so needing to choose a suitable rigidity, the rigidity of damping spring exists before control
20 ± 0.6N/mm so that preceding damping spring has good performance in use.
In sum, the invention has the advantages that：The first gum cover and are respectively arranged at two ends with spring body
Two gum covers, can carry out stress protection to preceding damping spring so that the two ends of preceding damping spring are not easy to wear and can reduce and receive
Pressure during power；PUR coating enables to have good peel strength between the second gum cover and spring body.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1；
Fig. 2 is that the structure sectional view at the first gum cover is located in embodiment 1；
Fig. 3 is that the structure sectional view at the second gum cover is located in embodiment 1.
In figure：1st, spring body；2nd, big end；3rd, small end；4th, the first gum cover；5th, the second gum cover；6th, PUR coating；
7th, etch resistant layer；8th, open slot.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Embodiment 1：The preceding damping spring of a kind of automobile, as shown in figure 1, including the spring body rolled by spring steel wire
1, the left side of spring body 1 is big end 2, and right side is small end 3.The material of spring steel wire be 55CrSiA, diameter 12-13mm,
Hardness is 50-51.5HRC；The internal diameter of small end 3 is Φ 79.5 ± 0.5, and the external diameter of big end 2 is Φ 139.5 ± 0.5, and the number of turns is
7.65 circles, 456 ± 3mm of drift, rotation direction is to the right.
As shown in Figures 2 and 3, antistatic paint is sprayed onto the surface of spring body 1 by spray gun, etch resistant layer is formed with
7, by increasing capacitance it is possible to increase the corrosion resistance and antistatic property of spring body 1.
The first gum cover 4 is arranged with the big end 2 of spring body 1 simultaneously, the second gum cover 5, first are arranged with small end 3
The gum cover 5 of gum cover 4 and second is by polyurethane into after the internal diameter of the first gum cover 4 is coated with etch resistant layer 7 less than spring body 1
Diameter, the stress of the first gum cover 4 occur elastic deformation after be pushed against on the big end 2 of spring body 1.The edge on the second gum cover 5
The bearing of trend for spring body 1 offers an open slot 8, and is coated with heat by applying hot melt adhesives in the second gum cover 5
Melten gel coating 6, PUR coating 6 is coated uniformly on second gum cover 5 and is applied for contradicting the end face of spring body 1, temperature-sensitive
Everywhere thickness of the layer in the second gum cover 5 is equal；Second gum cover 5 forms internal diameter more than spring body after being coated with heat susceptible coating
1 is coated with the diameter after etch resistant layer 7.
Embodiment 2：The production technology of the preceding damping spring of a kind of automobile, as shown in Fig. 1 to Fig. 3, successively including following step
Suddenly：Preparatory process, wind spring operation, tempering process, blasting process, operation of halting, matting, phosphating operation operation, the first inspection
Survey operation, surface plastic spraying treatment process, load packet operation, set gum cover operation, the second detection operation, packaging process.
In preparatory process, choose material for 55CrSiA spring steel wire, its diameter 12-13mm, hardness is 50-
51.5HRC。
In wind spring operation, operated using spring coiling machine, and the rotation of damping spring rolls out to the right, first big end before setting
Portion 2, then roll out small end 3；The internal diameter of small end 3 is concurrently set for Φ 79.5 ± 0.5, the external diameter of big end 2 be Φ 139.5 ±
0.5, the number of turns is 7.65 circles, 456 ± 3mm of drift.
Tempering process, using meshbeltfurnace, design temperature is 380-420 DEG C, and the time is 50-65 minutes, so that spring
Tissue after steel wire tempering turns into secondary troostite, and is not in martensite.
Blasting process, using channel-type compressed air shotblasting machine, shot peening strength is more than 0.4A, and surface coverage is more than 90%.
Halt operation, halted machine using spring, preceding damping spring is depressed into and tight 3-4 times.
Matting, takes after 15min is soaked during temperature is the NaCaCO3 solution that 60-80 DEG C and mass fraction are 20%
Go out, and point 3 rinsed cleans in 60-80 DEG C of hot water, and phosphating operation operation is carried out in 3h after the rinsing treatment.
Phosphating operation operation.
First detection operation, it is 20min in the NaCl solution of 5-10% that the spring after phosphatization is immersed in into mass fraction, is taken
Dried after going out, occur without that yellow rust is as qualified, qualified product carries out next process.
Surface plastic spraying treatment process, etch resistant layer 7 is formed after spray gun will be painted and be sprayed onto the surface of preceding damping spring, and
Touch-up paint is carried out in the two ends end face of preceding damping spring.
Load is grouped operation, and when preceding damping spring being pressed in into 270mm by forcing press, required pressure is 3060-3175N's
Preceding damping spring is divided into first group, and required pressure is divided into second group for the preceding damping spring of 3175-3270N, and others are unqualified
Product.
Set gum cover operation, the first gum cover 4 is set on big end 2, the second gum cover 5 is set in small end 3, second
Gum cover 5 when mounted open slot 8 towards the inside of preceding damping spring；Heat is formed after applying hot melt adhesives in the second gum cover 5 simultaneously
Quick coating, in applying hot melt adhesives, is not allow for disconnecting and occurring the phenomenon of pimple.
Second detection operation, 135.5mm is compressed to by forcing press by preceding damping spring, measures rigidity, preceding damping spring
Rigidity is certified products in 20 ± 0.6N/mm.
Packaging process, preceding damping spring external application foam paper parcel, while leading between preceding damping spring and preceding damping spring
Liner plate is crossed to separate.
By above process, the preceding damping spring with the first gum cover 4 and the second gum cover 5, first can be produced
The gum cover 5 of gum cover 4 and second can carry out stress protection to the two ends of preceding damping spring, and be coated with hot melt in the second gum cover 5
Gel coating 6, by increasing capacitance it is possible to increase the disengaging intensity of the second gum cover 5 and small end 3.Simultaneously before compression spring by first detection operation and
Second detection operation, can weed out underproof product；In load packet operation, preceding damping spring can be divided into many
Group so that be closer to batch of preceding damping spring performance.The tensile strength of damping spring meets 1700- before final
1800Mpa, and turn into secondary troostite after tempering process, hardness is 48-52HRC；By surface after blasting process treatment
Smooth even, impulse- free robustness；Fatigue test results, at 200,000 times, free height loss is less than 1%, load loss at neutral height
Less than 2%, without fracture at 700,000 times, and the first gum cover 4 and the second gum cover 5 are without coming off；During static test, under greenhouse, it is depressed into
Kept for 96 hours during 135.5mm, free height is damaged and is less than 1% so that preceding damping spring has good performance and the longevity
Life.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected by Patent Law in the right of invention.
Claims (10)
1. a kind of preceding damping spring of automobile, including the spring body rolled by spring steel wire（1）, it is characterised in that：The bullet
Spring body（1）One end be big end（2）, the spring body（1）The other end to roll rear internal diameter less than big end（2）'s
Small end（3）, the big end（2）On be arranged with the first gum cover（4）, the small end（3）On be arranged with the second gum cover（5）,
Second gum cover（5）On be provided with along the spring body（1）Bearing of trend offer open slot（8）, described second
Gum cover（5）Inwall on be equipped with PUR coating（6）.
2. the preceding damping spring of a kind of automobile according to claim 1, it is characterised in that：The spring body（1）Table
Face is coated with etch resistant layer（7）.
3. the preceding damping spring of a kind of automobile according to claim 2, it is characterised in that：First gum cover（4）With institute
State the second gum cover（5）By polyurethane into first gum cover（4）Internal diameter be less than the spring body（1）It is coated with anti-
Corrosion layer（7）Diameter afterwards, first gum cover（4）Stress is pushed against the spring body after there is elastic deformation（1）On, institute
State the second gum cover（5）It is coated with PUR coating（6）Internal diameter is formed afterwards is more than the spring body（1）It is coated with etch resistant layer
（7）Diameter afterwards.
4. the preceding damping spring of a kind of automobile according to claim 3, it is characterised in that：The PUR coating（6）
It is even to be coated in second gum cover（5）For contradicting the spring body（1）End face on, the PUR coating（6）
Two gum covers（5）Interior thickness everywhere is equal.
5. the production work of the preceding damping spring of a kind of automobile as described in any claim in claim 1 to claim 4
Skill, it is characterised in that：Comprise the following steps：
S1：Preparatory process, the material of spring steel wire is 55CrSiA, and diameter 12-13mm, hardness is 50-51.5HRC；
S2：Wind spring operation, using spring coiling machine, sets small end（3）Internal diameter be Φ 79.5 ± 0.5, big end（2）External diameter is Φ
139.5 ± 0.5, the number of turns is 7.65 circles, 456 ± 3mm of drift；
S3：Tempering process, using meshbeltfurnace, design temperature is 380-420 DEG C, and the time is 50-65 minutes；
S4：Blasting process, using channel-type compressed air shotblasting machine, shot peening strength is more than 0.4A, and surface coverage is more than 90%；
S5：Halt operation, halted machine using spring, preceding damping spring is depressed into and tight 3-4 times；
S6：Phosphating operation operation；
S7：Surface plastic spraying treatment process, forms anticorrosive after antistatic paint to be sprayed onto spray gun the surface of preceding damping spring
Layer（7）, and two ends end face in preceding damping spring carries out touch-up paint；
S8：Set gum cover operation, by the first gum cover（4）It is set in big end（2）On, by the second gum cover（5）It is set in small end（3）
On, the second gum cover（5）Open slot when mounted（8）Towards the inside of preceding damping spring；
S9：Packaging process, preceding damping spring external application foam paper parcel, while passing through between preceding damping spring and preceding damping spring
Liner plate separates.
6. the production technology of the preceding damping spring of a kind of automobile according to claim 5, it is characterised in that：The phosphatization behaviour
Need to carry out matting to preceding damping spring before making operation, be that 60-80 DEG C and mass fraction are 20% in temperature during matting
NaCaCO3 solution in soak 15min after take out, and point 3 rinsed cleans in 60-80 DEG C of hot water, and in cleaning treatment
Phosphating operation operation is carried out in 3h afterwards.
7. the production technology of the preceding damping spring of a kind of automobile according to claim 6, it is characterised in that：In phosphating operation
The first detection operation is carried out after operation, in the first detection operation, by phosphatization after preceding damping spring be immersed in mass fraction and be
20min in the NaCl solution of 5-10%, dries after taking-up, occurs without yellow rust as qualified.
8. the production technology of the preceding damping spring of a kind of automobile according to claim 7, it is characterised in that：At surface plastic spraying
Load packet operation is also included after science and engineering sequence, when preceding damping spring is pressed in into 270mm, required pressure is for before 3060-3175N
Damping spring is divided into first group, and required pressure is divided into second group, other defective works for the preceding damping spring of 3175-3270N.
9. the production technology of the preceding damping spring of a kind of automobile according to claim 5, it is characterised in that：Set gum cover operation
In, the first gum cover（4）With the second gum cover（5）Material be polyurethane, in the second gum cover（5）Heat is formed after interior applying hot melt adhesives
Melten gel coating（6）, in applying hot melt adhesives, it is not allow for disconnecting and occurring the phenomenon of pimple.
10. the production technology of the preceding damping spring of a kind of automobile according to claim 5, it is characterised in that：In set gum cover
The second detection operation is also included between operation and packaging process, preceding damping spring is compressed to by 135.5mm by forcing press, surveyed
Amount rigidity, the rigidity of preceding damping spring is certified products in 20 ± 0.6N/mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037204.6A CN106704424A (en) | 2017-01-19 | 2017-01-19 | Front damping spring for automobile and production technology of front damping spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037204.6A CN106704424A (en) | 2017-01-19 | 2017-01-19 | Front damping spring for automobile and production technology of front damping spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106704424A true CN106704424A (en) | 2017-05-24 |
Family
ID=58906996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710037204.6A Pending CN106704424A (en) | 2017-01-19 | 2017-01-19 | Front damping spring for automobile and production technology of front damping spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704424A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108456888A (en) * | 2018-04-04 | 2018-08-28 | 江西捷凯机械有限公司 | A kind of processing method of automobile absorber internal part |
| CN109973570A (en) * | 2019-04-03 | 2019-07-05 | 合肥神辉弹簧有限公司 | A kind of combined type spring |
| CN110220692A (en) * | 2019-07-10 | 2019-09-10 | 吉林工程技术师范学院 | A kind of auto parts and components resistance to compression detection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435476A (en) * | 2007-11-15 | 2009-05-20 | 上海中国弹簧制造有限公司 | Spring production process flow for increasing load detection times |
| CN201382111Y (en) * | 2009-04-07 | 2010-01-13 | 上海中国弹簧制造有限公司 | Novel spring with rubber jacket |
| CN201475222U (en) * | 2009-07-29 | 2010-05-19 | 杭州钱江弹簧有限公司 | Single-cone suspension spring |
| US20140008852A1 (en) * | 2011-03-04 | 2014-01-09 | Nhk Spring Co., Ltd. | Spring and manufacture method thereof |
| CN205013560U (en) * | 2015-09-25 | 2016-02-03 | 钱江弹簧（北京）有限公司 | Take spring of gum cover |
| CN105755457A (en) * | 2014-12-13 | 2016-07-13 | 重庆迎瑞升压铸有限公司 | Spring phosphatization process |
| CN106077258A (en) * | 2016-07-13 | 2016-11-09 | 苏州市虎丘区浒墅关弹簧厂 | A kind of preparation method of high abrasion wavy spring |
-
2017
- 2017-01-19 CN CN201710037204.6A patent/CN106704424A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435476A (en) * | 2007-11-15 | 2009-05-20 | 上海中国弹簧制造有限公司 | Spring production process flow for increasing load detection times |
| CN201382111Y (en) * | 2009-04-07 | 2010-01-13 | 上海中国弹簧制造有限公司 | Novel spring with rubber jacket |
| CN201475222U (en) * | 2009-07-29 | 2010-05-19 | 杭州钱江弹簧有限公司 | Single-cone suspension spring |
| US20140008852A1 (en) * | 2011-03-04 | 2014-01-09 | Nhk Spring Co., Ltd. | Spring and manufacture method thereof |
| CN105755457A (en) * | 2014-12-13 | 2016-07-13 | 重庆迎瑞升压铸有限公司 | Spring phosphatization process |
| CN205013560U (en) * | 2015-09-25 | 2016-02-03 | 钱江弹簧（北京）有限公司 | Take spring of gum cover |
| CN106077258A (en) * | 2016-07-13 | 2016-11-09 | 苏州市虎丘区浒墅关弹簧厂 | A kind of preparation method of high abrasion wavy spring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108456888A (en) * | 2018-04-04 | 2018-08-28 | 江西捷凯机械有限公司 | A kind of processing method of automobile absorber internal part |
| CN109973570A (en) * | 2019-04-03 | 2019-07-05 | 合肥神辉弹簧有限公司 | A kind of combined type spring |
| CN110220692A (en) * | 2019-07-10 | 2019-09-10 | 吉林工程技术师范学院 | A kind of auto parts and components resistance to compression detection device |
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Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |