CN209228785U - A kind of cylinder end piece mounting structure - Google Patents

Abstract

The utility model discloses a kind of cylinder end piece mounting structures, including end cap, end cap offers punched out, end cap front end offers intercommunicating pore, spring assembly is equipped in intercommunicating pore, spring assembly is provided with through hole, and spring assembly is equipped with convex ribs, mounting groove is provided in end cap, mounting groove suitably floats for convex ribs；Spring assembly includes the first reed and the second reed, and the first reed offers first groove, and the second reed offers third groove；The circumferentially recessed folding of reed ring is formed with annular recess, and the front end of end cap is equipped with block piece.The utility model has the following advantages that and effect: being placed on piston rod using spring assembly and strikes off dust, has decontamination and better dust removal effect, energy conservation and environmental protection and the preferable effect of air-tightness；With Self-centering Action, installation is more convenient；The groove of two panels reed staggeredly covers, and dust-proof effect is preferable；Annular groove compensates spring assembly with axial elasticity.

Description

A kind of cylinder end piece mounting structure

Technical field

The utility model relates to cylinder articles field, in particular to a kind of cylinder end piece mounting structure.

Background technique

Cylinder is mainly made of cylinder barrel, end cap, piston, piston rod and sealing element etc., is a kind of guidance piston in cylinder barrel The cylindrical metal parts of straight reciprocating motion are carried out, piston rod, which is pierced by, is fixedly connected with external equipment and does reciprocal fortune after end cap It is dynamic.

The Chinese patent of existing Patent No. CN104373417A discloses a kind of dedusting cylinder, including cylinder barrel, piston rod And piston, cylinder barrel two sides are respectively equipped with front cover and rear cover, front cover and rear cover are respectively equipped with the air duct communicated with inside cylinder barrel, Piston is set to inside cylinder barrel and connect with one end of piston rod, and the other end of piston rod passes through front cover and stretches out in outside cylinder barrel Portion, front cover are successively arranged the dust-proofing ring and sealing element to match with piston rod from outside to inside, and dust-proofing ring is solid by dust-break retainer plate It is scheduled on front cover；Dust-break retainer plate is made of fluorubber, and effect is banding dust-proofing ring, and makes to protect between dust-proofing ring and piston rod Hold certain magnitude of interference；Dust-proofing ring is made of phosphor-copper, and effect is by the close contact with piston rod surface to remove piston Bar surface is formed by stupid stain.

But above-mentioned dedusting cylinder, which has the disadvantage in that, maintains certain magnitude of interference between dust-proofing ring and piston rod, work as work When stopper rod does iterative motion along axial direction, the frictional resistance of dust-proofing ring and piston rod side wall is larger, and biggish thrust is needed to push away The movement of piston bar haves the shortcomings that energy consumption is larger.

Utility model content

The purpose of the utility model is to provide a kind of cylinder end piece mounting structures, are placed on piston rod outer wall using double-reed, Have the effect of saving energy consumption.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of cylinder end piece installation Structure, including end cap, end cap central axially offer the punched out passed through for piston rod along end cap, the front end of end cap offer with The intercommunicating pore of punched out connection, is provided with spring assembly annular in shape in intercommunicating pore, spring assembly center offers through hole, spring Piece component is placed on piston rod by through hole, and the outer diameter of spring assembly is provided with convex ribs, and the front inner wall of end cap is opened along axial direction Equipped with mounting groove corresponding with convex ribs, spring assembly is by convex ribs floating mount in mounting groove；The middle part of spring assembly is curved The annular recess for the " V " shape for being formed with opening towards end cap front end is rolled over, the front end of end cap is additionally provided with block piece, spring assembly axis To being limited between end cap and block piece；Spring assembly includes axially stacked the first reed and the second reed together, the One reed and the second reed are annular in shape and corresponding, the first reed, the second reed periphery be provided with convex ribs；First reed Inner circumferential offers several first grooves, and the inner circumferential of the second reed offers several third grooves, first groove and third ditch Slot is in be staggered.

By using above-mentioned technical proposal, when end cap is installed on cylinder barrel, piston rod sequentially passes through punched out, connects One end is located at outside cylinder barrel after through-hole and through hole, then two panels reed is overlapped mounted in pairs in intercommunicating pore, makes first groove With the interlaced covering of third groove, the pollutants such as dust can be effectively prevented to enter cylinder barrel from first groove or third groove It is interior.By convex ribs in mounting groove, then spring assembly is avoided to be detached from intercommunicating pore, reed the front end that block piece is installed on end cap Component can float, and automatically with piston rod diameter centering, to reduce the abrasion of piston rod, can extend piston rod uses the longevity Life.Spring assembly has certain clamping force to piston rod, and during piston rod axially reciprocating, spring assembly is scraped Piston rod surface can not only strike off the dust for being attached to piston rod side wall, also have preferable scavenging effect, and in decontamination There is certain wear automatic-compensation ability in the process, the service life of reed itself can be extended.The pressure when piston rod stretches out Angle is smaller, and stretching is more smooth, and when piston rod retracts, spring assembly, which can hold piston rod tightly, keeps the pollutants such as pole face dust effective It strikes off, and the frictional resistance between spring assembly and piston rod is smaller；The setting of first groove and third groove can be reed group Part provides deformation space when scraping.In this way, not only there is dedusting and scavenging effect is preferable, energy-saving and environment-friendly effect, simultaneously also Friction of the dust to piston rod outer wall can be reduced, to keep air-tightness preferable.

The utility model is further arranged to: the periphery of the first reed offers several second grooves, the second reed Periphery offer several articles of the 4th grooves, second groove and the 4th groove are in being staggered.

By using above-mentioned technical proposal, when the radial dimension of intercommunicating pore is smaller, spring assembly can be by being pressed directly into Mode be installed in intercommunicating pore, the setting of second groove and the 4th groove provides certain when can be pressed into intercommunicating pore for spring assembly Deformation space, spring assembly radially has certain elasticity, itself can floating mount, the center of spring assembly can be adapted to Property adjustment, can be suitable for various sizes of end cap on, have the stronger effect of versatility.

The utility model is further arranged to: the first reed, the second reed are equipped with annular recess, and two ring-types are recessed The bending angle of slot is identical.

By using above-mentioned technical proposal, the angle of the recessed folding of the annular recess of two panels reed is identical, and two leaf springs may be implemented Seamless applying between piece, so that dustiness be made to be not easily accessed among reed and stress is caused to change, another inside and outside identical angle makes spring Piece stress balance, outer ring have certain bracketing effect to inner ring.

The utility model is further arranged to: block piece is set as retaining ring, and end cap inner wall is offered for retaining ring insertion Annular embedded groove, annular embedded groove are connected to intercommunicating pore.

By using above-mentioned technical proposal, by retaining ring installation by adhering after in annular embedded groove, retaining ring a part is embedded in In annular embedded groove, retaining ring another part is located in intercommunicating pore, barrier effect can be so played to reed, to a certain extent It can avoid reed and be detached from intercommunicating pore.

The utility model is further arranged to: first groove, second groove, the quantity of third groove and the 4th groove are equal It is set as odd number item.

By using above-mentioned technical proposal, after the first reed is rotated 180 degree relative to the second reed, first groove just with Third groove staggeredly covers, and second groove and the 4th groove staggeredly cover just.

The utility model is further arranged to: the annular mounting groove that multiple tracks is connected to punched out, ring are offered in end cap Dust-proof seal ring is provided in shape mounting groove.

By using above-mentioned technical proposal, dust-proof seal ring can enter to cylinder by the pollutants such as blocks dust to a certain extent In cylinder.

The utility model is further arranged to: the inner wall of dust-proof seal ring is provided with the cambered surface of indent, and cambered surface passes through two A conflict point contacts at piston rod.

By using above-mentioned technical proposal, dust-proof seal ring contacts at piston rod by two conflict points, can not only play The effect of sealing and dustproof, and since the contact area between dust-proof seal ring and piston rod is smaller, so that frictional resistance is smaller, Abrasion, which can be reduced, can also reduce frictional resistance, play and prolong the service life, have energy-efficient effect.

The utility model is further arranged to: the end face of dust-proof seal ring offers V-shaped groove.

By using above-mentioned technical proposal, V-shaped groove can provide when by piston rod active force centainly for dust-proof seal ring Deformation space, make dust-proof seal ring be integrally not susceptible to deform and damage.

The utility model is further arranged to: support ring is provided in end cap, support ring is set in punched out, support The inner wall of ring contacts at piston rod.

By using above-mentioned technical proposal, support ring can keep piston rod to be located at center, can play centralized positioning Effect.

The utility model is further arranged to: end cap outer wall opens up the notch of annular, is provided with O shape ring in notch.

By using above-mentioned technical proposal, when end cap is installed on cylinder barrel, O-ring outer wall can closely be pasted with end cap It closes, the effect of sealing can be played to a certain extent, enhance air-tightness.

In conclusion the utility model has the following beneficial effects:

1. the dust being attached on piston rod side wall, greasy dirt can be struck off, be removed in such a way that double-reed is placed on piston rod Dirty and better dust removal effect, energy conservation and environmental protection and air-tightness are preferable；

2. being arranged between gap, convex ribs and limiting slot between reed outer diameter and end cap and gap being arranged, reed can be made to float and realized certainly Centering, installation is more convenient, and the concentricity of spring assembly and piston rod is higher；

3. the interlaced covering of corresponding groove on two panels reed can effectively prevent the pollutants such as dust from entering from groove Cylinder barrel, realizes the scraping to piston rod full periphery, and dust-proof effect is preferable；

4.V shape annular recess structure moves back and forth so that spring assembly has preferable elasticity along axial in piston rod When, spring assembly can correspondingly contraction distortion, elastic compensating better performances；

5. spring assembly can be used for various sizes of end cap, versatility is stronger.

Detailed description of the invention

Fig. 1 is the overall structure cross-sectional view of embodiment.

Fig. 2 is the structural schematic diagram of the two panels reed of embodiment.

Fig. 3 is that the reed of embodiment is installed on the structural schematic diagram of end cap.

Fig. 4 is the enlarged drawing of a-quadrant in Fig. 1.

In figure: 1, end cap；11, punched out；12, annular mounting groove；13, support ring；14, notch；15, O-ring；16, even Through-hole；17, mounting groove；18, annular embedded groove；2, dust-proof seal ring；21, cambered surface；3, piston rod；4, reed；41, through hole； 42, convex ribs；43, the first reed；431, first groove；432, second groove；44, the second reed；441, third groove；442, Four grooves；45, annular recess；5, retaining ring；6, V-shaped groove.

Specific embodiment

The utility model will be further described below with reference to the accompanying drawings.

A kind of cylinder end piece mounting structure, as shown in Figure 1, including end cap 1,1 center of end cap is worn along axial offer of end cap 1 Portal 11, both ends are located at 1 both ends of end cap after piston rod 3 passes through punched out 11, and dust-proof seal ring 2 is provided in end cap 1, hold 1 front end of lid is provided with spring assembly 4 annular in shape, and spring assembly 4 is placed on 3 side wall of piston rod, and spring assembly 4 uses elastic material It is made, when piston rod 3 does reciprocation cycle movement, it is dirty under the action of reed group valence 4 and dust-proof seal ring 2 can to reduce dust etc. Dye object enters in cylinder barrel.

As shown in Figure 1, the annular mounting groove 12 that twice are connected to punched out 11 is coaxially offered in end cap 1, dust seal Circle 2 is set in annular mounting groove 12, and the inner wall of dust-proof seal ring 2 is provided with the cambered surface 21 of indent, and cambered surface 21 passes through both ends It contradicts point to contact on piston rod 3, in this way, can not only play the role of sealing and dustproof, but also due to dust-proof seal ring 2 and piston Contact area between bar 3 is smaller, so that frictional resistance is smaller, can both reduce abrasion can also reduce frictional resistance, to play Prolong the service life, there is energy-efficient effect；The end face of dust-proof seal ring 2 offers V-shaped groove 6, and V-shaped groove 6 can be dust seal Circle 2 provides certain deformation space when by 3 active force of piston rod, and dust-proof seal ring 2 is made integrally to be not susceptible to deform and damage It is bad；The inner wall of end cap 1 is additionally provided with support ring 13, and support ring 13 is set in punched out 11, and the internal ring wall of support ring 13 contradicts In 3 side wall of piston rod, support ring 13 can keep piston rod 3 to be located at center, play the role of centralized positioning；Pacify on end cap 1 The notch 14 of annular is offered on one end outer wall loaded on cylinder barrel, is provided with O-ring 15 in notch 14, is installed on when end cap 1 When on cylinder barrel, 15 outer wall of O-ring can be fitted closely with inner wall of cylinder, can be played sealing effect to a certain extent, be avoided cylinder barrel Interior gas is leaked from the gap between end cap 1 and cylinder barrel, enhances air-tightness.

As shown in Figure 1, Figure 2 and Figure 3, the front end of end cap 1 offers the intercommunicating pore 16 being coaxially disposed with punched out 11, connection The diameter in hole 16 is greater than the diameter of punched out 11, and spring assembly 4 is installed in intercommunicating pore 16, and 4 center of spring assembly, which offers, to be passed through Perforation 41, through hole 41 and intercommunicating pore 16 are coaxial, and piston rod 3 may pass through through hole 41, and spring assembly 4 is made to be sheathed on piston rod 3； Spring assembly 4 includes axially stacked the first reed 43 and the second reed 44 together, the first reed 43 and the second reed 44 Annular in shape and corresponding, the outer diameter of the first reed 43 and the second reed 44 is provided with the symmetrical convex ribs 42 of two panels, 1 front end of end cap Inner wall be provided in the axial direction with two and be connected to intercommunicating pore 16 and symmetrically arranged mounting groove 17, mounting groove 17 and convex ribs 42 are opposite It answers, for spring assembly 4 through 42 floating mount of convex ribs in mounting groove 17, the area of mounting groove 17 is slightly larger than the area of convex ribs 42, Mounting groove 17 for convex ribs 42 suitably float, be provided with gap between 4 outer diameter of spring assembly and end cap 1, can automatically with piston rod 3 outside Diameter centering extends the service life of piston rod 3 to reduce the abrasion of piston rod 3.The internal diameter of first reed 43 circumferentially offers Seven first grooves 431, the outer diameter of the first reed 43 circumferentially offer seven second grooves 432, the internal diameter week of the second reed 44 To seven third grooves 441 are offered, the outer diameter of the second reed 44 circumferentially offers seven the 4th grooves 442, first groove 431, second groove 432, third groove 441 and the mutual equally spaced setting of the 4th groove 442, by the first reed 43, the second spring It is installed in intercommunicating pore 16 after 44 relative rotation 180 degree of piece, first groove 431 and the interlaced setting of third groove 441, second Groove 432 and the also interlaced setting of the 4th groove 442, can effectively prevent the pollutants such as dust from first groove 431, the second ditch Slot 432, third groove 441 or the 4th groove 442 enter in cylinder barrel.

As shown in Figure 1, Figure 2 and Figure 4, the middle part of spring assembly 4 is bent to form the ring for the " V " shape being open to outside end cap 1 Shape groove 45, the bottom of annular recess 45 can contact on 1 inner wall of end cap, and the ring-type on the first reed 43, the second reed 44 is recessed The angle of the recessed folding of slot 45 is identical, may be implemented seamless applying between reed, and dustiness is made to be not easily accessed among reed and lead to stress Change, another inside and outside identical angle makes reed stress balance, outer ring has certain bracketing effect, and the ring-type of " V " shape to inner ring 45 structure of groove, so that spring assembly 4 has preferable elasticity along axial, when piston rod 3 moves back and forth, 4 energy of spring assembly Enough correspondingly contraction distortions, elastic compensating better performances.Spring assembly 4 has certain clamping force to piston rod 3, in piston rod During 3 axially reciprocatings, spring assembly 4 can not only be struck off the dust for being attached to 3 side wall of piston rod, also be had preferable Scavenging effect, and during decontamination reed have certain wear automatic-compensation ability, making for reed itself can be extended Use the service life.When piston rod 3 stretches out, pressure angle is smaller, and stretching is more smooth, and when piston rod 3 retracts, spring assembly 4 can hold work tightly Stopper rod 3 strikes off the pollutants such as pole face dust effectively, first groove 431, second groove 432, third groove 441 and the 4th ditch The setting of slot 442 can for spring assembly 4 scrape when deformation space be provided, the frictional force between piston rod 3 and spring assembly 4 compared with It is small.In this way, being preferable, energy-saving and environment-friendly effect with dedusting and scavenging effect, while reducing dust and rubbing to 3 outer wall of piston rod It wipes, to keep air-tightness preferable, can also effectively extend the service life of dust-proof seal ring 2.When intercommunicating pore 16 radial dimension compared with Hour, spring assembly 4 can be installed in intercommunicating pore 16 by way of being pressed directly into, second groove 432 and the 4th groove 442 It is arranged and certain deformation space is provided when can be pressed into intercommunicating pore 16 for spring assembly 4, spring assembly 4 is radial has certain bullet Property, itself can floating mount, the center of spring assembly 4 can be adaptively adjusted, and various sizes of end cap 1 can be suitable for On, there is the stronger effect of versatility.

As shown in Figure 1, the front end of end cap 1 is equipped with the retaining ring 5 for stopping spring assembly 4 to be detached from intercommunicating pore 16, end cap 1 Inner wall offers the annular embedded groove 18 being embedded in for retaining ring 5.By 5 installation by adhering of retaining ring after in annular embedded groove 18, retaining ring 5 Outer peripheral portion is embedded in annular embedded groove 18, and retaining ring 5 is located in intercommunicating pore 16 close to central part, in this way, retaining ring 5 can be to spring Piece component 4 plays barrier effect, can avoid spring assembly 4 to a certain extent and is detached from intercommunicating pore 16.

The basic functional principle of the utility model are as follows: when being installed on end cap 1 on cylinder barrel, piston rod 3 is sequentially passed through One end is located at outside cylinder barrel after punched out 11, intercommunicating pore 16 and through hole 41, then the first reed 43 and the second reed 44 are overlapped Mounted in pairs is in intercommunicating pore 16, making first groove 431 and third groove 441 interlaced, second groove 432 and the 4th groove 442 is interlaced, can effectively prevent the pollutants such as dust from first groove 431,432 third groove 441 or the of second groove Four grooves 442 enter in cylinder barrel, by convex ribs 42 in mounting groove 17, then block piece are installed on end cap 1 and avoids reed Component 4 is detached from intercommunicating pore 16, so that spring assembly 4 is floated, automatically with 3 diameter centering of piston rod, to reduce piston rod 3 Abrasion, can extend the service life of piston rod 3.During 3 axially reciprocating of piston rod, spring assembly 4 can will adhere to It is struck off in the dust of 3 side wall of piston rod, when piston rod 3 stretches out, pressure angle is smaller, and stretching is more smooth, when piston rod 3 retracts, Spring assembly 4, which can hold piston rod 3 tightly, strikes off the pollutants such as pole face dust effectively, and between spring assembly 4 and piston rod 3 Frictional resistance is smaller；The setting of first groove 431, second groove 432, third groove 441 and the 4th groove 442 can be reed group Part 4 provides deformation space when scraping.In this way, not only having better dust removal effect, energy-saving and environment-friendly effect, while can also reduce Friction of the dust to 3 outer wall of piston rod, to keep air-tightness preferable.

The above description is only a preferred embodiment of the present invention, therefore all according to described in the utility model patent application range The equivalent change or modification done of structure, feature and principle, be included in the scope of the utility model patent application.

Claims (10)

1. a kind of cylinder end piece mounting structure, including end cap (1), end cap (1) center is axially offered for work along end cap (1) The punched out (11) that stopper rod (3) passes through, it is characterised in that: the front end of the end cap (1) is offered with the punched out (11) even Logical intercommunicating pore (16), the intercommunicating pore (16) is interior to be provided with spring assembly annular in shape (4), spring assembly (4) center It offers through hole (41), the spring assembly (4) is placed on piston rod (3) by the through hole (41), the reed group The outer diameter of part (4) is provided with convex ribs (42), and the front inner wall of the end cap (1) is provided in the axial direction with opposite with the convex ribs (42) The mounting groove (17) answered, the spring assembly (4) is by the convex ribs (42) floating mount in the mounting groove (17)；

Be bent to form in the middle part of the spring assembly (4) opening towards the end cap (1) front end " V " shape annular recess (45), the front end of the end cap (1) is additionally provided with block piece, and spring assembly (4) axial limiting is in the end cap (1) and institute It states between block piece；

The spring assembly (4) includes axially stacked the first reed (43) and the second reed (44) together, and described first Reed (43) and second reed (44) be annular in shape and corresponding, first reed (43), second reed (44) Periphery is provided with the convex ribs (42)；The inner circumferential of first reed (43) offers several first grooves (431), described The inner circumferential of second reed (44) offers several third grooves (441), the first groove (431) and the third groove It (441) is in be staggered.

2. a kind of cylinder end piece mounting structure according to claim 1, it is characterised in that: outside first reed (43) Offering several second grooves (432) week, the periphery of second reed (44) offers several articles of the 4th grooves (442), The second groove (432) is in be staggered with the 4th groove (442).

3. a kind of cylinder end piece mounting structure according to claim 1, it is characterised in that: first reed (43), institute It states the second reed (44) to be equipped with the annular recess (45), and the bending angle of two annular recess (45) is identical.

4. a kind of cylinder end piece mounting structure according to claim 1, it is characterised in that: the block piece is set as retaining ring (5), end cap (1) inner wall offers the annular embedded groove (18) for the retaining ring (5) insertion, the annular embedded groove (18) It is connected to the intercommunicating pore (16).

5. a kind of cylinder end piece mounting structure according to claim 2, it is characterised in that: the first groove (431), institute The quantity for stating second groove (432), the third groove (441) and the 4th groove (442) is disposed as odd number article.

6. a kind of cylinder end piece mounting structure according to claim 1, it is characterised in that: offered in the end cap (1) Multiple tracks is connected to the annular mounting groove (12) of the punched out (11), is provided with dust-proof seal ring in the annular mounting groove (12) (2)。

7. a kind of cylinder end piece mounting structure according to claim 6, it is characterised in that: the dust-proof seal ring (2) Inner wall is provided with the cambered surface (21) of indent, and the cambered surface (21) contacts at piston rod (3) by two conflict points.

8. a kind of cylinder end piece mounting structure according to claim 6, it is characterised in that: the dust-proof seal ring (2) End face offers V-shaped groove (6).

9. a kind of cylinder end piece mounting structure according to claim 1, it is characterised in that: be provided in the end cap (1) Support ring (13), the support ring (13) are set in the punched out (11), and the inner wall of the support ring (13) contacts at work Stopper rod (3).

10. a kind of cylinder end piece mounting structure according to claim 1, it is characterised in that: end cap (1) outer wall opens up There is the notch (14) of annular, is provided with O shape ring (15) in the notch (14).