CN110052995A - A kind of auxiliary thumbnail and piston ring tool - Google Patents
A kind of auxiliary thumbnail and piston ring tool Download PDFInfo
- Publication number
- CN110052995A CN110052995A CN201910460995.2A CN201910460995A CN110052995A CN 110052995 A CN110052995 A CN 110052995A CN 201910460995 A CN201910460995 A CN 201910460995A CN 110052995 A CN110052995 A CN 110052995A
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- Prior art keywords
- thumb
- force
- working face
- card plane
- face
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- 210000003813 thumb Anatomy 0.000 claims abstract description 146
- 239000004744 fabric Substances 0.000 claims description 5
- 239000005060 rubber Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000004049 embossing Methods 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 238000007790 scraping Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 3
- 210000004905 finger nail Anatomy 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000012423 maintenance Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000012447 hatching Effects 0.000 description 5
- 241000282376 Panthera tigris Species 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 210000003811 finger Anatomy 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 239000007779 soft material Substances 0.000 description 4
- 238000006748 scratching Methods 0.000 description 3
- 230000002393 scratching effect Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000000282 nail Anatomy 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/20—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same inserting or withdrawing split pins or circlips
Abstract
The invention discloses a kind of auxiliary thumbnail and piston ring tools.Auxiliary thumbnail is made of thumb card plane, force surface and working face；Thumb card plane is a cylinder face；Thumb card plane second end is fixedly connected with the first end of force surface；The second end of force surface is fixedly connected with the first end of working face；Working face and thumb card plane axis are at special angle；The distance of the first end of working face to force surface first end is particular value；The first end of working face to thumb card plane center line distance be particular value.The present invention provides a kind of flexible scraping tools by hand, avoid finger nail from directly exerting a force and damage, exerted a force by thumb press, improve the active force of scraping；Scraping process can be made to be accurately positioned, it is accurate to exert a force, flexibly and easily.A kind of piston ring tool for assisting thumbnail to form by two is provided, can be used for the dismounting of piston ring of the various cylinder diameters lower than 120mm, improves the efficiency of piston ring dismounting.
Description
Technical field
The present invention relates to Internal-Combustion Engine Maintenance field more particularly to a kind of auxiliary thumbnails and piston ring tool.
Background technique
When engine maintenance maintains, dismounting piston ring is a common maintenance content.Currently, generalling use piston
Ring dismounting pincers carry out the dismounting of piston ring.Three fulcrum flush end piston rings of piston ring tongs when dismounting, there are piston rings
Unstable problem is lifted, and tensile force when piston ring dismounting is opened by the opening of piston ring tongs, dynamics is not allowed easily-controllable
System, easily snaps off piston ring, higher to the technical requirements of piston ring handling personnel.On the other hand, piston ring tongs are only applicable in
In the piston ring of special diameter, and the piston ring of various diameters can be encountered in maintenance, the personnel that need repairing replace in time
Piston ring tongs increase the workload of maintenance personal.For this purpose, many maintenance personals will use thumbnail and clasp in practice
Piston ring clamps piston ring with hand and is dismounted.This dismounting mode is lifted steadily, and it is living to be suitable for various small bore engines
The dismounting of plug ring；However often cause nail breakage, the problems such as finger pain is injured, it is difficult to use this method for a long time.
Therefore, those skilled in the art is dedicated to developing a kind of auxiliary thumbnail and piston ring tool, auxiliary
Thumbnail simulates the thumbnail of people, makees for scratch pulling, enhances the active force for scratching drawing, avoids thumbnail broken
Damage, provides a kind of tool easy to use for the dismounting of piston ring.
Summary of the invention
In view of the above drawbacks of the prior art, the technical problem to be solved by the present invention is to solve frequently to refer to using thumb
First scratch the occasion of drawing, easily causes thumbnail breakage, thumbnail separates with thumb and causes finger pain and thumb
The problem of the stingy pulling force deficiency of nail especially solves the problems, such as that the piston ring dismounting in engine maintenance maintenance is inconvenient.
To achieve the above object, the present invention provides a kind of auxiliary thumbnails, by thumb card plane, force surface and work
Face is constituted；
The thumb card plane is a cylinder face；
The thumb card plane second end is fixedly connected with the first end of the force surface；
The second end of the force surface is fixedly connected with the first end of the working face；
The working face and the thumb card plane axis are at special angle；
The distance of the first end of the working face to the force surface first end is particular value；
The first end of the working face to the thumb card plane center line distance be particular value.
Further, the force surface second end further includes positioning surface, and the positioning surface and the working face are at specific angle
Degree, the length of the positioning surface are particular value.
It further, further include elastic retaining strap on the force surface.
Further, rubber, silica gel or cloth, fibrous material are covered on the inside of the thumb card plane.
Further, be additionally provided with non slip surface on the force surface, the non slip surface be embossing face, serrated face, step or
To there is the face of anti-skidding boss.
Further, the working face is cancave cambered surface, convex globoidal, plane, V-shaped groove surface or U-type groove face.
Further, the thumb card plane, the force surface and the working face be arranged to welding, bonding or
Bolt connecting mode fixation is integrally formed.
Further, the working face and the thumb card plane axis are at 60-90 degree angle.
Further, the first end of the working face to the thumb card plane center line distance be 1.2-1.8 lis
Rice.
The present invention also provides a kind of piston ring tools, are referred to by two auxiliary thumbs as described in any in right 1-9
First composition.
In better embodiment of the invention, a kind of auxiliary thumbnail is provided, by thumb card plane, force surface and work
Make face composition.
Thumb card plane is a cylinder face；The length is 1.5-2.5 centimetres, it is preferred that the length is 2.0 centimetres；Thumb
The first end of card plane is withstood at tiger's jaw, the joint of the second end of thumb card plane not across thumb first segment and the second section；Thumb
The internal diameter for referring to card plane is 1.8-2.8 centimetres.Thumb detent surface cover is on thumb, when thumb bending, in thumb card plane
Heart line shifts with thumb second knuckle, and the first end of thumb card plane is made to be stuck in the tiger's jaw side of thumb root, thumb detent
The second end in face is stuck in the outside at the thumb second joint back side.Make thumb card plane and thumb second joint relatively fixed in this way,
Thumb card plane is stuck on thumb.
The second end of thumb card plane is fixedly connected with the first end of force surface.
Force surface is the equal of the smooth transition surface from thumb card plane to working face, excellent the length is 1.8-3.3 centimetres
Choosing, length is 2.8 centimetres；The first end transverse width of force surface is 1.4-2.0 centimetres, it is preferred that width is 1.8 centimetres.
Force surface length is too long, and the point of application distance of thumb, which is scratched, draws object too far, assists thumbnail and scratched to draw to hold between object
It easily shakes, work is unstable；Length is too short, it has not been convenient to which thumb applies active force.Force surface first end and thumb card plane second end
It is fixedly connected, has certain angle relative to thumb card plane axis, angle is 0-15 degree, it is preferred that angle is 10 degree.Force
The main function in face first is that there is enough force spaces, convenient for applying active force；Another effect is to guarantee accurate positioning, is avoided
Working face is detached from the structure for being scratched drawing or working face intrusion object is excessive.Width of the force surface first end to working face first end
Degree smooth transition.
The second end of force surface is fixedly connected with the first end of working face.
Working face is to assist thumbnail to by the stingy structure for drawing object directly to apply active force.The width of working face is
0.4-1.2 centimetres.Width determines that view application is chosen, and is usually chosen to 0.6 centimetre of application that can meet piston ring dismounting.
The length of working face is 0.3-1.0 centimetres, it is preferred that length is 0.6 centimetre.
Working face and thumb card plane axis are at 60-90 degree.Too small angle can be such that contact surface reduces；Excessive angle,
Working face can be made to slide with the structure for being scratched drawing.Preferred angle is 85 degree.
The distance of the first end of working face to force surface first end is 1.8-3.2 centimetres, it is preferred that length is 2.8 centimetres.
Too small distance is not easy to thumb force；Excessive distance, it is not easy to be kept in contact steady.
The distance of center line of the first end of working face to thumb card plane is 1.2-1.8 centimetres, and preferred distance is 1.5
Centimetre.Too small distance can be such that the normal pressure of thumb and force surface reduces；Excessive distance is unfavorable for being accurately positioned and stablize
Work.
In a preferred embodiment of the present invention, force surface second end further includes positioning surface.Positioning surface is one section of plane
Or cambered surface.The first end of positioning surface to thumb card plane second end horizontal distance be 1.4-2.3 centimetres.Preferably
1.8 centimetre.Positioning surface to thumb card plane center line distance be 0.7-1.3 centimetres.Preferably 0.9 centimetre.Positioning surface
First end width is greater than second end width.The angle of positioning surface and working face is 60-90 degree, it is preferred that positioning surface and working face
At 85 degree.When using thumbnail structure is assisted, positioning surface provides bearing and positioning on object, for working face, avoids
Working face is detached from the structure for being scratched drawing or working face intrusion object is excessive.
It in a preferred embodiment of the present invention, further include elastic retaining strap on force surface, elastic retaining strap is set
For can beam in thumb front end.Length when elastic retaining strap's unstretched state is 1.5-2.5 centimetres, and preferred length is 2 centimetres.
Length when elastic retaining strap's tensional state is 3-6 centimetres, and preferred length is 4 centimetres.Elastic force is 2-10N, preferably
For 3N.Elastic retaining strap makes thumb fit together with force surface, and thumb is prevented to be separated from force surface, increases operating flexibility.
In a better embodiment of the invention, rubber, silica gel or cloth, undulation degree are covered on the inside of thumb card plane
Material.Guarantee that thumb and the contact surface flexibility on the inside of thumb card plane are good, avoids thumb injured, increase comfort, improve finger
Active force.
In a preferred embodiment of the present invention, non slip surface is additionally provided on force surface.Non slip surface is embossing face, sawtooth
Face, step or the face to there is anti-skidding boss.Force surface is the pith that thumb exerts a force, and entire mechanism for assembling-disassembling is used
Power the best part.Non slip surface can increase the degree of roughness of contact surface, to increase the friction between thumb and force surface, prevent
It is only slipped between thumb and force surface, improves thumb force, make to position more acurrate.
In a preferred embodiment of the present invention, working face is cancave cambered surface, convex globoidal, plane, V-shaped groove surface or U-shaped
Groove face.The main function of working face is to draw object to contact with by stingy.When drawing some sharp objects for scratching, anti-anti-avulsion is needed
It falls, positioning can be enhanced as working face using cancave cambered surface at this time.The occasion big for some hardness, to be generated on its surface
Normal pressure is improved working face and is scratched the compatible degree for drawing object using the working face of convex globoidal form.For common application,
The working face of plane form can be used, convenient for manufacture.The groove profile in V-shaped groove surface or U-type groove face is deeper, can increase working face with
The contact area for drawing object is scratched, locating effect is improved, prevents from slipping.
In a preferred embodiment of the present invention, thumb card plane, force surface and working face by welding, bonding or
It is bolted fixation to be integrally formed, they can be separately manufactured in this way.Different materials can be used in thumb card plane and force surface
Production, force surface use the biggish material of rigidity, and thumb card plane uses soft material.Both can guarantee assist thumbnail have compared with
Big stiffness and strength avoid excessive deformation, and thumb contact can be made to soft material, improve the comfort used.
In a preferred embodiment of the present invention, working face and thumb card plane axis are at 60-90 degree angle.Too small angle
Degree, can be such that contact surface reduces, and be easy to cause working face and by stress is excessive between stingy drawing object and positioning is unstable；Excessive angle
Degree is easy to slide working face with the structure for being scratched drawing.Preferred angle is 85 degree.
In a preferred embodiment of the present invention, the distance of center line of the first end of working face to thumb card plane is
1.2-1.8 centimetres, preferred distance is 1.5 centimetres.Working face is that auxiliary thumbnail is acted on the directly application of drawing object is scratched
The structure of power.Too small distance can be such that the normal pressure of thumb and force surface reduces, and influence to scratch pulling force, make thumb on force surface
Force is difficult；Excessive distance increases working face to the distance of thumb card plane, so that deflecting force is generated biggish torque, no
Conducive to accurate positionin and steady operation.
The present invention also provides a kind of piston ring tools, are referred to by two auxiliary thumbs as described in any in right 1-9
First composition.
In removing of piston ring, two hand thumbs of left and right respectively wear an auxiliary thumbnail.Positioning surface is pressed on piston ring
On piston ring excircle face beside notch, working face is deep into gap-clearance of piston rings.The auxiliary thumbnail of left hand clasps piston
The auxiliary thumbnail of open end on the left of ring, the right hand clasps the open end on the right side of piston ring.Two hands force, assists thumbnail
Pull outward piston ring, increases piston ring aperture, takes out piston ring.
When assembling piston ring, two hand thumbs of left and right put on auxiliary thumbnail, right-and-left auxiliary thumbnail
Positioning surface abuts against on the periphery of gap-clearance of piston rings two sides, and the working face of two Hand supplementary thumbnails of left and right is held in piston ring
Be open left and right ends.Two hands of left and right exert a force outward, increase gap-clearance of piston rings, piston ring is inserted in piston ring groove, is reduced later
Thumbnail force is assisted, so that working face and positioning surface is separated from piston ring, completes the installation of piston ring.
The beneficial effects of the present invention are:
(1) a kind of flexible manual scraping tool is provided, avoids finger nail from coming to harm because directly exerting a force, passes through
Thumb press force, improves the active force of scraping.
(2) scraping process can be made to be accurately positioned, it is accurate to exert a force, flexibly and easily.
(3) dismounting that can be used for piston ring of the various cylinder diameters lower than 120mm improves the efficiency of piston ring dismounting.
It is described further below with reference to technical effect of the attached drawing to design of the invention, specific structure and generation, with
It is fully understood from the purpose of the present invention, feature and effect.
Detailed description of the invention
Fig. 1 is the auxiliary thumbnail structural schematic diagram of a preferred embodiment of the invention；
Fig. 2 is the anti-skidding boss arrangement schematic diagram of the force surface of a preferred embodiment of the invention；
Fig. 3 be on force surface shown in Fig. 2 A point to the hatching schematic diagram of B point；
Fig. 4 is the force surface and thumb card plane bolt joint schematic diagram of a preferred embodiment of the invention；
Fig. 5 is the partial enlarged view of A shown in Fig. 4；
Fig. 6 is the schematic diagram using piston ring tool dismounting piston ring of a preferred embodiment of the invention；
Fig. 7 is the partial enlarged view of A shown in Fig. 6；
In attached drawing: 1-thumb card plane, 2-force surfaces, 3-working faces, 4-thumb card plane liners, 5-positioning surfaces,
6-elastic retaining straps, 7-anti-skidding boss, 8-force surface hatchings, 9-bolt joints.
Specific embodiment
Multiple preferred embodiments of the invention are introduced below with reference to Figure of description, keep its technology contents more clear and just
In understanding.The present invention can be emerged from by many various forms of embodiments, and protection scope of the present invention not only limits
The embodiment that Yu Wenzhong is mentioned.
In the accompanying drawings, the identical component of structure is indicated with same numbers label, everywhere the similar component of structure or function with
Like numeral label indicates.The size and thickness of each component shown in the drawings are to be arbitrarily shown, and there is no limit by the present invention
The size and thickness of each component.Apparent in order to make to illustrate, some places suitably exaggerate the thickness of component in attached drawing.
Embodiment 1
It is the auxiliary thumbnail structural schematic diagram of a preferred embodiment of the invention as shown in Figure 1.The present embodiment
Assisting thumbnail includes thumb card plane 1, force surface 2 and working face 3, in 1 built-in rubber of thumb card plane, silica gel or cloth
The inner lining materials such as material, fibrous material 4 are arranged positioning surface 5 in 2 second end of force surface, elastic retaining strap 6 are equipped on force surface 2.
Thumb card plane 1 is a cylinder face, and the length is 2.1 centimetres；The first end of thumb card plane 1 is withstood at tiger's jaw,
Joint of the second end of thumb card plane 1 not across thumb first segment and the second section；The internal diameter of thumb card plane 1 is 2.6 centimetres.
1 set of thumb card plane on thumb, when thumb bending when, center line and the thumb second knuckle of thumb card plane 1 shift,
The first end of thumb card plane 1 is set to be stuck in the tiger's jaw side of thumb root, the second end of thumb card plane 1 is stuck in thumb second joint
The outside at the back side.Make thumb card plane 1 and thumb second joint relatively fixed in this way, thumb card plane 1 is stuck on thumb.
The second end of thumb card plane 1 is fixedly connected with the first end of force surface 2.
Force surface 2 is the equal of the smooth transition surface from thumb card plane 1 to working face 3, and the length is 3.0 centimetres；It applies
The first end transverse width in power face 2 is 1.6 centimetres.2 first end of force surface is fixedly connected with 1 second end of thumb card plane, relatively
In 1 axis of thumb card plane angle be 9 degree.The length of force surface 2, which can guarantee, enough force spaces, acts on convenient for application
Power；Simultaneously guarantee accurate positioning, avoid working face 3 with by scratch draw structure be detached from or working face 3 intrusion object it is excessive.Force
The width of 2 first end of face to 3 first end of working face seamlessly transits.
The second end of force surface 2 is fixedly connected with the first end of working face 3.
Working face 3 is to assist thumbnail to by the stingy structure for drawing object directly to apply active force.The width of working face 3 is
0.55 centimetre, the application of piston ring dismounting can be met.The length of working face 3 is 0.5,0.6,0.7 centimetre.Working face 3 and thumb
1 axis of card plane is at 60-90 degree angle.Too small angle can be such that contact surface reduces, and contact is unstable, cause to slip；Excessive angle
Degree can be such that working face 3 slides with drawing object is scratched.Preferred angle is 83,85,87 degree.The first end of working face 3 is to applying
The distance of 2 first end of power face is 1.8-3.2 centimetres, is chosen as 2.4,2.8 centimetres.Too small distance is not easy to thumb force；It crosses
Long distance, it is not easy to keep auxiliary thumbnail and be scratched to draw to stablize between object.The first end of working face 3 is to thumb detent
The distance of the center line in face 1 is 1.2-1.8 centimetres, and preferred distance is 1.5 centimetres.Too small distance can make thumb and force
The normal pressure in face 2 reduces, and influences to scratch pulling force, and thumb is made to exert a force on force surface 2 difficulty；Excessive distance increases working face 3
To the distance of thumb card plane 1, deflecting force is made to generate biggish torque, is unfavorable for accurate positionin and steady operation.
The inner lining materials such as rubber, silica gel or cloth, fiber 4 are covered on the inside of thumb card plane 1.Guarantee thumb and thumb card
The contact surface flexibility of 1 inside of plane is good, avoids thumb injured, increases comfort, improves finger active force.
2 second end of force surface further includes positioning surface 5.Positioning surface 5 is one section of plane or cambered surface.The first end of positioning surface 5
Horizontal distance to the second end of thumb card plane 1 is 1.4-2.3 centimetres, preferably 1.8 centimetres.This is unfavorable apart from too small
It exerts a force on force surface 2 in thumb；This can reduce the rigidity that force surface 2 arrives positioning surface 5, be not easy to make working face 3 apart from too long
With the stable position for being scratched drawing object.The distance that positioning surface 5 arrives the center line of thumb card plane 1 is 0.7-1.3 centimetres, preferably
It is 0.9 centimetre.Apart from too small, thumb exerts a force difficulty on force surface 2 for this, is unfavorable for the work of working face 3；This is apart from excessive, meeting
It is bent thumb excessively, is unfavorable for working face 3 and is scratched the stable position for drawing object.5 first end width of positioning surface is greater than second
Hold width.The length of positioning surface 5 is 0.4-0.8 centimetres, preferably 0.6 centimetre.The angle of positioning surface 5 and working face 3 is 60-
95 degree, it is preferred that positioning surface 5 and working face 3 are at 85 degree.When using thumbnail structure is assisted, positioning surface 5 is close to object
On, bearing and positioning are provided for working face 3, working face 3 is avoided to invade object with the disengaging of knot object or working face 3 for being scratched drawing
Excessively.
Further include elastic retaining strap 6 on force surface 2, elastic retaining strap 6 be arranged to can beam in thumb front end, elastically keep
Length when with 6 unstretched state is 1.5-2.5 centimetres, and preferred length is 2 centimetres.When 6 tensional state of elastic retaining strap
Length is 3-6 centimetres, and preferred length is 4 centimetres.Elastic force is 2-10N, preferably 3N.Elastic retaining strap 6 makes thumb
It fits together with force surface 2, thumb is prevented to be separated from force surface 2, increase operating flexibility.
Embodiment 2
Fig. 2 is the anti-skidding boss arrangement schematic diagram of the force surface of a preferred embodiment of the invention.The present embodiment is prevented
Sliding boss 7 is a kind of non-skid feature that force surface 2 ensures thumb force.Force surface 2 is the pith that thumb exerts a force, main
It leans on normal pressure and frictional force to generate and scratches pulling force.Anti-skidding boss 7 is arranged on force surface 2 can prevent from going out between thumb and force surface 2
It now slips, increases frictional force, can suitably reduce normal pressure, reduce the active force at the both ends of thumb card plane 1, improve the course of work
Comfort.In addition, anti-skidding boss 7 can increase the degree of roughness of contact surface, to increase rubbing between thumb and force surface 2
It wipes.In use, anti-skidding boss 7 can prevent from slipping between thumb and force surface 2, improve thumb force, and it is fixed to make
Position is more acurrate.
Fig. 3 be on force surface shown in Fig. 2 A point to the hatching schematic diagram of B point.2 hatching 8 of force surface is shown in Fig. 2
On force surface 2 A point to B point section center line.The length of force surface 2 is 2.8 centimetres, and A point is in 2 first end of force surface, B point
In 2 second end of force surface.A point is as coordinate origin, and AB is as X-axis, and Y-axis crosses A point and perpendicular to X-axis, and XAY coordinate is tied to form the right hand
System, the scale unit of coordinate system are millimeter.Expression in the shape function coordinate system shown in Fig. 3 of preferred AB center line
Are as follows: y=0.8634sin (0.3956x-3.765)+1.614sin (0.05978x+1.845), x ∈ [0,28].This
2 hatching 8 of force surface of function expression can guarantee that the angle of 1 second end of thumb card plane and 2 first end of force surface is 10
Degree, working face 3 and 1 axis of thumb card plane are at 85 degree of angles；It can also guarantee that force surface 2 has enough force spaces, convenient for applying
Add active force；There are enough spaces as positioning surface 5, it is ensured that accurate positioning avoids working face 3 and scratched the object disengaging drawn
Or the intrusion object of working face 3 is excessive.
Embodiment 3
Fig. 4 is the force surface and thumb card plane bolt joint schematic diagram of a preferred embodiment of the invention.Thumb
Refer to that card plane 1 and force surface 2 are separately manufactured, the fixation of connector 9 is bolted and is integrally formed.Bolt joint 9 is a kind of
High intensity connection.Wherein, thumb card plane 1 and force surface 2 are made of different materials, and force surface 2 is biggish using rigidity
Material production, thumb card plane 1 are made of soft material.Thumb card plane 1 and force surface can be made by being connected by screw bolts connector 9
2 assembly and connections are convenient for manufacture, are convenient for disassembly and assembly.Both it can guarantee that thumb is assisted to have biggish stiffness and strength, avoid excessive change
Shape, and thumb contact can be made to soft material, improve the comfort level of use process.
Fig. 5 is the partial enlarged view of A shown in Fig. 4.Working face 3 draws object to by stingy using V-groove in the partial enlarged view of A
Direct applied force.Long pointed object is drawn and attenuated for scratching, needs to prevent object in the course of work from slipping, the groove profile of V-groove compares
It is deep, positioning can be enhanced.V-groove can increase working face 3 and be scratched the contact area for drawing object in use, make to be scratched
It draws the open end of object to be fixed in slot, improves locating effect, prevent from slipping.
Embodiment 4
Fig. 6 is the schematic diagram using piston ring tool dismounting piston ring of a preferred embodiment of the invention.This
A kind of piston ring tool is provided in embodiment, is made of two auxiliary thumbnails.Two auxiliary thumbnails cover respectively
On the right-and-left thumb of operator, the working face 3 for assisting thumbnail is probeed into the opening of piston ring, positioning surface
5 are stuck on piston ring excircle face.In removing of piston ring, two hand thumbs fasten force surface 2 and exert a force, and auxiliary thumbnail pulls outward
Piston ring increases gap-clearance of piston rings, takes out piston ring；When assembling piston ring, two hand thumbs are applied outward by force surface 2
Power increases gap-clearance of piston rings, and piston ring is inserted in piston ring groove, then reduces auxiliary thumbnail force, makes 3 He of working face
Positioning surface 5 is separated from piston ring, completes the installation of piston ring.Auxiliary thumbnail is exerted a force on force surface 2 by thumb, can be with
It is convenient to open piston ring, and do not limited by piston ring diameter, the piston ring that cylinder diameter is lower than 120mm can be dismounted.
Fig. 7 is the partial enlarged view of A shown in Fig. 6.The partial enlarged view of A be force surface 2 and working face 3 on the piston ring
Positioning figure, working face 3 are buckled on gap-clearance of piston rings end face, and positioning surface 5 is against on piston ring excircle face.Positioning surface 5 guarantees work
Face 3 and the open end of piston ring fit together, and keep the stabilization in disassembly process.Piston ring dismounting provided in this embodiment
Tool can increase stingy pulling force, improve piston ring disassembly efficiency.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that the ordinary skill of this field is without wound
The property made labour, which according to the present invention can conceive, makes many modifications and variations.Therefore, all technician in the art
Pass through the available skill side of logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Case, all should be within the scope of protection determined by the claims.
Claims (10)
1. a kind of auxiliary thumbnail, which is characterized in that be made of thumb card plane, force surface and working face；
The thumb card plane is a cylinder face；
The thumb card plane second end is fixedly connected with the first end of the force surface；
The second end of the force surface is fixedly connected with the first end of the working face；
The working face and the thumb card plane axis are at special angle；
The distance of the first end of the working face to the force surface first end is particular value；
The first end of the working face to the thumb card plane center line distance be particular value.
2. auxiliary thumbnail as described in claim 1, which is characterized in that the force surface second end further includes positioning surface,
At special angle, the length of the positioning surface is particular value for the positioning surface and the working face.
3. auxiliary thumbnail as described in claim 1, which is characterized in that further include elastic retaining strap on the force surface.
4. auxiliary thumbnail as described in claim 1, which is characterized in that be covered with rubber, silicon on the inside of the thumb card plane
Glue or cloth, fibrous material.
5. auxiliary thumbnail as described in claim 1, which is characterized in that non slip surface is additionally provided on the force surface, it is described
Non slip surface is embossing face, serrated face, step or the face to there is anti-skidding boss.
6. auxiliary thumbnail as described in claim 1, which is characterized in that the working face is cancave cambered surface, convex globoidal, puts down
Face, V-shaped groove surface or U-type groove face.
7. auxiliary thumbnail as described in claim 1, which is characterized in that the thumb card plane, the force surface and institute
Working face is stated to be arranged to be integrally formed with the fixation of welding, bonding or bolt connecting mode.
8. auxiliary thumbnail as described in claim 1, which is characterized in that the working face and the thumb card plane axis
At 60-90 degree angle.
9. auxiliary thumbnail as described in claim 1, which is characterized in that the first end of the working face to the thumb card
The distance of the center line of plane is 1.2-1.8 centimetres.
10. a kind of piston ring tool, which is characterized in that by two auxiliary thumbnails as described in any in right 1-9
Composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910460995.2A CN110052995B (en) | 2019-05-30 | 2019-05-30 | Auxiliary thumb nail and piston ring dismounting tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910460995.2A CN110052995B (en) | 2019-05-30 | 2019-05-30 | Auxiliary thumb nail and piston ring dismounting tool |
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| Publication Number | Publication Date |
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| CN110052995A true CN110052995A (en) | 2019-07-26 |
| CN110052995B CN110052995B (en) | 2024-03-29 |
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| CN201910460995.2A Active CN110052995B (en) | 2019-05-30 | 2019-05-30 | Auxiliary thumb nail and piston ring dismounting tool |
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| CN (1) | CN110052995B (en) |
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|---|---|
| CN110052995B (en) | 2024-03-29 |
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