CN205016405U - Gyro wheel slider structure of friction power - Google Patents
Gyro wheel slider structure of friction power Download PDFInfo
- Publication number
- CN205016405U CN205016405U CN201520734269.2U CN201520734269U CN205016405U CN 205016405 U CN205016405 U CN 205016405U CN 201520734269 U CN201520734269 U CN 201520734269U CN 205016405 U CN205016405 U CN 205016405U
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- slide block
- turning handle
- elastic component
- roller
- metal contact
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Abstract
The utility model relates to a gyro wheel slider structure of friction power installs between switch shell curved surface structure and turning handle, including elastic component, slider, metal gyro wheel, turning handle direction muscle, casing curved surface structure, open at the slider top has the elastic component groove, and elastic component installs the inslot at elastic component, open the bottom of slider has gyro wheel trip structure, and the metal gyro wheel clamps in gyro wheel trip structure through the pivot, in the structural roll of switch shell's curved surface, open the slider both sides has the guide way, and the guide way is installed between turning handle's direction muscle, and turning handle installs in the pivot of casing through rotating the shaft hole, combines turning handle direction muscle and casing curved surface structure, and the rotation of following the slider turning handle changes slider reciprocating along turning handle direction muscle into. The utility model discloses a rolling friction replaces sliding friction, can the reduce friction coefficient, make on -off operation nimble, provide better operation and feel, be difficult for appearing that viscous is felt, wearing and tearing are little, long service life, do not need lubricated.
Description
Technical field
The utility model relates to a kind of structure reduced friction, and is specifically related to a kind of adopt rolling friction, the roller slide block structure of the less friction that structure is simple, easy for installation, long service life, operation are nimble.
Background technology
In rotating switch design, one of being made up of spring knock pin and curved surface or spring and roller slide block and curved surface is all needed to provide the combining structure of operating physical force and feel, friction between them is divided into sliding friction and rolling friction two kinds usually, and rolling friction is in order to provide less frictional resistance.
The advantage that sliding friction is compared in rolling friction is: 1. adopt Metal Contact Rollers, the stamped metal ejector pin that its dimensional accuracy is more traditional exceeds a lot, not easily occur that switch is owing to operating the phenomenon of viscous after environmental temperature experiment, 2. can provide more clear, more nimble operating handle, and dust or the impact of foreign matter on it almost nil, 3. owing to reducing the cause of frictional resistance, therefore it is also light a lot of to the wearing and tearing of housing curved-surface structure during repeatable operation, therefore there is longer useful life, be suitable for very much frequent operation, reliability and operating handle and require on higher switch.
Fig. 1 is the structural representation of common spring knock pin and housing curved surface, and Fig. 2 is the partial enlarged drawing of Fig. 1.As shown in Figure 1, in order to dial, to turn round, mark 2 ' be Compress Spring to mark 1 ', mark 3 ' is metal ejector pin, and Compress Spring and metal ejector pin are pressed into one by punching press, be arranged on housing and dial turn round between, mark 4 ' for housing.In fig. 2, to mark 5 ' be Compress Spring stop surface, mark 6 ' is housing curved-surface structure, mark 7 ' be group spring knock pin installing hole turned round.
Utility model content
For the problems referred to above, main purpose of the present utility model is the roller slide block structure of the less friction providing a kind of structure simple, easy for installation.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of roller slide block structure of less friction, and the roller slide block structure of described less friction is arranged between switch case curved-surface structure and turning handle;
The roller slide block structure of described less friction comprises elastic component, slide block, Metal Contact Rollers, turning handle guiding rib, housing curved-surface structure;
Slider top has elastic component groove, and elastic component is arranged in elastic component groove;
The bottom of slide block has roller coupler construction, and Metal Contact Rollers is installed in roller coupler construction by rotating shaft, and the curved-surface structure of switch case rolls;
The roller slide block structure of described less friction is arranged between the guiding rib of turning handle by the gathering sill of slide block both sides, turning handle is arranged in the rotating shaft of housing by rotational axis hole, in conjunction with turning handle guiding rib and housing curved-surface structure, slide block is changed into slide block moving up and down along turning handle guiding rib with the rotation of turning handle.
In preferred embodiment of the present utility model, described elastic component is Compress Spring.
In preferred embodiment of the present utility model, described turning handle has guide frame, and Compress Spring is guaranteed to be in place by guide frame.
In preferred embodiment of the present utility model, the limited wide muscle in the bottom of described Compress Spring and the position of shoe contact.
In preferred embodiment of the present utility model, described Metal Contact Rollers comprises Metal Contact Rollers rotating shaft face and Metal Contact Rollers rolling surface, Metal Contact Rollers rotating shaft face contacts with roller coupler construction, and Metal Contact Rollers rolling surface contacts with switch case curved-surface structure when the roller slide block structure motion of whole less friction.
Positive progressive effect of the present utility model is: the utility model adopts the mode of installing Metal Contact Rollers at the head of slide block, rolling friction between roller and housing curved surface is converted to by the sliding friction between metal roof plunger and housing curved surface by originally direct, thus substantially reduce frictional force, improve useful life, simultaneously because the more traditional ejector pin head height of dimensional accuracy of Metal Contact Rollers goes out a lot, be also beneficial to the size management and control of each part and clear nimble operating handle can be provided.
Accompanying drawing explanation
Fig. 1 is the structural representation of common spring knock pin and housing curved surface.
Fig. 2 is the A place enlarged drawing of Fig. 1.
The structural representation of the less friction roller slide block that Fig. 3 provides for the utility model and housing curved surface.
Fig. 4 is the B place enlarged drawing of Fig. 3.
Fig. 5 is the Parameter Map of each part in the utility model specific embodiment.
Embodiment
The utility model preferred embodiment is provided, to describe the technical solution of the utility model in detail below in conjunction with accompanying drawing.
The structural representation of the less friction roller slide block that Fig. 3 provides for the utility model and housing curved surface, Fig. 4 is the B place enlarged drawing of Fig. 3, as shown in Figure 3-4: the utility model is arranged between switch case curved-surface structure and turning handle, the roller slide block structure of less friction comprises turning handle 1, elastic component, slide block 3, Metal Contact Rollers 4 and housing 5, its elastic member, slide block 3 and Metal Contact Rollers 4 first can be assembled into an assembly, facilitate subsequent installation.
Slide block both sides have gathering sill, gathering sill is arranged between the guiding rib of turning handle, turning handle is arranged in the rotating shaft of housing by rotational axis hole, in conjunction with turning handle guiding rib and housing curved-surface structure, slide block is changed into slide block moving up and down along turning handle guiding rib with the rotation of turning handle.
The roller slide block structure of the less friction that the utility model provides is arranged between switch case curved-surface structure 17 and turning handle 1; What the utility model provided comprises elastic component, slide block 3, Metal Contact Rollers 4, turning handle guiding rib 14, housing curved-surface structure 17; Slider top has elastic component groove 18, and elastic component is arranged in elastic component groove 18; The bottom of slide block has roller coupler construction 10, and Metal Contact Rollers 4 is installed in roller coupler construction 10 by rotating shaft 12, and the curved-surface structure 17 of switch case rolls.
What the utility model provided is arranged between the guiding rib 14 of turning handle 1 by the gathering sill 6 of slide block both sides, turning handle 1 is arranged in the rotating shaft of housing by rotational axis hole, in conjunction with turning handle guiding rib 14 and housing curved-surface structure 17, slide block 3 is changed into slide block 3 moving up and down along turning handle guiding rib 14 with the rotation of turning handle 1.
In the embodiment that the utility model provides, Compress Spring 2 generally elected as by elastic component.
In the utility model, turning handle 1 has guide frame 16, Compress Spring 2 is guaranteed to be in place by guide frame 16.
In the utility model, the limited wide muscle 9 in position that the bottom of Compress Spring 2 contacts with slide block 3.
Metal Contact Rollers 4 comprises Metal Contact Rollers rotating shaft face 12 and Metal Contact Rollers rolling surface 13, Metal Contact Rollers rotating shaft face 12 contacts with the roller plane of rotation 11 of slide block, and Metal Contact Rollers rolling surface 13 contacts with switch case curved-surface structure 17 when the roller slide block structure motion of whole less friction.
Fig. 3 with Fig. 1 compares, and changes friction mode, and traditional sliding friction structure is replaced with rolling friction structure on new switch, i.e. " B " place.
In the utility model, as shown in Figure 4: the resilience force of necessity when Compress Spring 2 provides this roller slide block structure return, its design parameter as shown in Figure 5: outer diameter D e=3.35mm, internal diameter Di=2.35mm, spring steel wire wire diameter d=0.5mm, initial position reduction length L
1=11.35mm (this elastic coefficient K=2.5N/mm, overall length L
0=15mm, final position reduction length L
2=10.15mm), initial position elastic force F can be drawn according to above data
1=(L
0-L
1) * K ≈ 9.13N, final position elastic force F
2=(L
0-L
2) * K ≈ 12.13N.Slider guide groove 6 coordinates with the guiding rib 14 of turning handle, in conjunction with housing curved-surface structure 17, slide block is changed into moving up and down of slide block with the front and back of turning handle; What slide block coordinated with spring pre-fixes structure 7, play and spring and slide block are fixed up, prevent spring from for want of fixing, and drop out in installation process, action principle: its base diameter as shown in Figure 5: be 2.5mm, than spring inside diameter Di=2.35mm thick about 6.3%, play the effect of support big spring foundation ring, thus the pretightning force utilizing the strain of spring itself to produce reaches the object pre-fixing spring, and to pre-fix structural base height be 0.65mm, exceed 30% than spring wire diameter d=0.5mm, pretension can be avoided not have effect due to insufficient height; The spring supporting face 8 of slide block is played and is supported and the effect of Compress Spring together with turning handle spring supporting face 15; Wide muscle 9 limit by the spring of slide block, and this muscle effective interaction length is illustrated in figure 5 4.85mm, effective width is 3.5mm, can play restraining spring self bending deformation quantity upon compression, thus play the effect of stable elastic force and stable switch operating handle; The roller coupler construction 10 of slide block, plays the effect be fixedly installed to by Metal Contact Rollers on slide block, and selects POM/H (POM homopolymers) due to sliding block material, make use of the feature that its restoration is good, dimensional stability is excellent; The roller plane of rotation 11 of slide block, play the effect that Metal Contact Rollers rotating shaft is freely rotated along this face, and select POM/H (POM homopolymers) due to sliding block material, make use of that its dimensional stability is excellent, the feature of self-lubricating and high-wearing feature and high fatigue strength; Metal Contact Rollers rolling surface 13 coordinates with housing curved-surface structure 17, and roller is rolled on the curved surface of housing; Turning handle spring pre-directing structure 16, makes spring can navigate to accurately on turning handle supporting surface.
Some problems under present introduction existing for current conventional springs ejector pin, just as depicted in figs. 1 and 2, the metal roof plunger that it adopts is owing to being punch forming, therefore its head sizes is difficult to control, often there is the problem that head circular shape is inconsistent, which results in the phenomenon that when coordinating with housing curved surface, before and after console switch, feel is inconsistent, in addition because spring and metal roof plunger are punching press all-in-one-pieces, its length tolerance is larger, resilience force is also had a certain impact, in addition due to sliding friction that its friction mode is traditional, coefficient of friction is larger, for example: the coefficientoffrictionμ between traditional stainless steel spring ejector pin head and housing curved surface PBT material
1=0.28, with rolling friction F
1and F
2when identical, its frictional force f
1a=F
1* μ ≈ 2.56N, f
2a=F
2* μ ≈ 3.39N, its frictional resistance produced is also larger, elastic force when this not only can ensure effective resilience to spring has larger requirement, simultaneously because the large cause of its frictional resistance also can produce larger wearing and tearing to the curved-surface structure of plastic casing when frequent operation, if and spring force is larger, frictional resistance also can strain greatly mutually, this just turn increases the wearing and tearing of housing curved-surface structure, the friction durability of housing curved-surface structure is increased at present in order to reduce frictional resistance, solution increases lubricant grease between housing curved-surface structure and metal roof plunger, but because vehicle switch is higher to temperature requirement, be generally between-40 DEG C ~+90 DEG C, therefore higher requirement is also had to the high temperature performance of grease, specific grease can only be selected and oiling equipment need be increased, thus the rising of cost can be caused, in addition due to cause that vehicle switch life requirements is higher, usually 25000 times ~ 200000 times are not had not etc., therefore when life requirements is high often this system due to serious wear, after life experiment switch lose operating handle or operating physical force performance extremely unstable even there is catching phenomenon, therefore cannot life requirements be met.
Therefore the utility model object is to reduce the frictional force of slide block on curved surface, thus the requirement reduced friction to spring force and switch designs power, improve the operating handle of switch and the performance of force value after life experiment, with this example: the coefficient of rolling friction between brass of the present utility model (CuZn37) roller and housing curved surface (PA6.6/ nylon66 fiber) is μ
2=0.07, its force of rolling friction f
1b=(μ
a* F1)/r (r is Metal Contact Rollers radius r=1.9mm as shown in Figure 5), therefore f
1b≈ 0.34N, f
2b=(μ
a* F2)/r ≈ 0.45N, finds out f thus
1b, f
2bcompare f
1a, f
2africtional force reduces 86.72%, only has original 1/7.5, therefore also serves the wearing and tearing of housing curved-surface structure and improves effect significantly; In addition because rolling friction structure does not need lubricant grease substantially, and the impact of dust on it is almost nil, and selected material is the good plastics of high/low temperature stability or metal, therefore in the high/low temperature life experiment process of this example, meet the requirement of 100000 times of client's life-span, and experiment forward/backward operation power and feel show all better.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall within the scope of claimed the utility model, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. a roller slide block structure for less friction, is characterized in that: the roller slide block structure of described less friction is arranged between switch case curved-surface structure and turning handle;
The roller slide block structure of described less friction comprises elastic component, slide block, Metal Contact Rollers, turning handle guiding rib, housing curved-surface structure;
Slider top has elastic component groove, and elastic component is arranged in elastic component groove;
The bottom of slide block has roller coupler construction, and Metal Contact Rollers is installed in roller coupler construction by rotating shaft, and the curved-surface structure of switch case rolls;
The roller slide block structure of described less friction is arranged between the guiding rib of turning handle by the gathering sill of slide block both sides, turning handle is arranged in the rotating shaft of housing by rotational axis hole, in conjunction with turning handle guiding rib and housing curved-surface structure, slide block is changed into slide block moving up and down along turning handle guiding rib with the rotation of turning handle.
2. the roller slide block structure of less friction according to claim 1, is characterized in that: described elastic component is Compress Spring.
3. the roller slide block structure of less friction according to claim 2, it is characterized in that: described turning handle has guide frame, Compress Spring is guaranteed to be in place by guide frame.
4. the roller slide block structure of less friction according to claim 2, is characterized in that: the limited wide muscle in the bottom of described Compress Spring and the position of shoe contact.
5. the roller slide block structure of less friction according to claim 1, it is characterized in that: described Metal Contact Rollers comprises Metal Contact Rollers rotating shaft face and Metal Contact Rollers rolling surface, Metal Contact Rollers rotating shaft face contacts with roller coupler construction, and Metal Contact Rollers rolling surface contacts with switch case curved-surface structure when the roller slide block structure motion of whole less friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734269.2U CN205016405U (en) | 2015-09-21 | 2015-09-21 | Gyro wheel slider structure of friction power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734269.2U CN205016405U (en) | 2015-09-21 | 2015-09-21 | Gyro wheel slider structure of friction power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205016405U true CN205016405U (en) | 2016-02-03 |
Family
ID=55214997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520734269.2U Active CN205016405U (en) | 2015-09-21 | 2015-09-21 | Gyro wheel slider structure of friction power |
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| Country | Link |
|---|---|
| CN (1) | CN205016405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109259813A (en) * | 2018-10-24 | 2019-01-25 | 汕头大学医学院第附属医院 | Purse-string suture device clamps together device under a kind of hysteroscope |
-
2015
- 2015-09-21 CN CN201520734269.2U patent/CN205016405U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109259813A (en) * | 2018-10-24 | 2019-01-25 | 汕头大学医学院第附属医院 | Purse-string suture device clamps together device under a kind of hysteroscope |
| CN109259813B (en) * | 2018-10-24 | 2023-10-31 | 汕头大学医学院第一附属医院 | Clamping device of endoscopic purse-string suture device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |