CN208474482U - A kind of big arm cylinder piston rod - Google Patents
A kind of big arm cylinder piston rod Download PDFInfo
- Publication number
- CN208474482U CN208474482U CN201821181666.1U CN201821181666U CN208474482U CN 208474482 U CN208474482 U CN 208474482U CN 201821181666 U CN201821181666 U CN 201821181666U CN 208474482 U CN208474482 U CN 208474482U
- Authority
- CN
- China
- Prior art keywords
- piston body
- rod
- axle sleeve
- loose slot
- keyway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to piston rod technical fields, especially a kind of big arm cylinder piston rod, including piston body and the piston body of rod, the piston body is cavity structure, keyway is uniformly provided in the middle part of the inner cavity of the piston body, the inner cavity upper and lower part of the piston body offers loose slot respectively, the outer lower portion of the piston body of rod is equipped with flat key compatible with keyway, the outside of the piston body of rod is symmetrically socketed with axle sleeve compatible with loose slot and stop collar, the inner cavity of the loose slot is fixedly connected with the seal washer to match with axle sleeve far from the side of keyway, spring pocket is socketed on the outside of the axle sleeve, the upper and lower ends of the spring pocket are fixedly connected with seal washer and stop collar respectively.The structure design of the utility model is reasonable, easy to use, the piston body of rod can be effectively protected, and stability is stronger, substantially increases the service life of piston rod entirety, has powerful practicability, is worthy to be popularized.
Description
Technical field
The utility model relates to piston rod technical field more particularly to a kind of big arm cylinder piston rods.
Background technique
Piston rod is a kind of connecting component for supporting acting, and major applications are in oil cylinder, cylinder moving execution unit
The moving component that one movement is frequent, technical requirements are high.Piston rod is generally made of piston body and the piston body of rod.
Traditional piston body and the piston body of rod is typically directly connected through a screw thread, and is then added in the bottom of the piston body of rod
Upper locking nut is reinforced, and the piston rod of this connection type lacks corresponding self-protection measure, during use,
The piston body of rod hit, shake when be easy to cause bending to damage, service life is lower.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of big arm cylinder proposed is living
Stopper rod.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of big arm cylinder piston rod, including piston body and the piston body of rod are designed, the piston body is cavity structure, described
It is uniformly provided with keyway in the middle part of the inner cavity of piston body, the inner cavity upper and lower part of the piston body offers loose slot respectively, institute
Loose slot is stated in V-shape, and the loose slot is connected with keyway, the outer lower portion of the piston body of rod is equipped with mutually fits with keyway
The flat key matched, the outside of the piston body of rod are symmetrically socketed with axle sleeve compatible with loose slot and stop collar, and the axle sleeve
Side far from stop collar is in contact with flat key, and the inner cavity of the loose slot is fixedly connected with and axle sleeve phase far from the side of keyway
Matched seal washer, is socketed with spring pocket on the outside of the axle sleeve, the upper and lower ends of the spring pocket respectively with seal washer
It is fixedly connected with stop collar.
Preferably, the outside screw of the piston body is connected with protective jacket, is uniformly provided on the outside of the protective jacket recessed
The inside of slot, the groove is equipped with silencer pad.
Preferably, electrophoretic coating is coated on the outside of the piston body of rod.
Preferably, the seal washer is elastic polyurethane seal washer.
Preferably, the axle sleeve is landing shape, and the axle sleeve and the piston body of rod are interference fitted.
The utility model proposes a kind of big arm cylinder piston rod, beneficial effect is: the utility model by keyway and
Flat key cooperates, so that piston body and the piston body of rod are assembled together, then in the socket of the outside of the piston body of rod and loose slot
Match axle sleeve, is sealed between axle sleeve and loose slot by seal washer, it is ensured that leakproofness, when the piston body of rod is hit
When hitting, shaking, axle sleeve can be in the inside of loose slot moving up and down by a small margin, so that spring pocket is stretched or compresses, benefit
The elastic force effect generated with spring pocket deformation can improve protectiveness with buffering percussive force, extend the service life of the piston body of rod.
The structure design of the utility model is reasonable, easy to use, the piston body of rod can be effectively protected, and stability is stronger, greatly improve
The service life of piston rod entirety has powerful practicability, is worthy to be popularized.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of big arm cylinder piston rod construction schematic diagram；
Fig. 2 be the utility model proposes a kind of big arm cylinder piston rod in part-structure overlook open schematic diagram.
In figure: piston body 1, the piston body of rod 2, keyway 3, loose slot 4, flat key 5, seal washer 6, axle sleeve 7, spring pocket 8, limit
Position ring 9, protective jacket 10, groove 11, silencer pad 12.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-2, a kind of big arm cylinder piston rod, including piston body 1 and the piston body of rod 2, the outside screw of piston body 1
It is connected with protective jacket 10, the outside of protective jacket 10 is uniformly provided with groove 11, and the inside of groove 11 is equipped with silencer pad 12, protective jacket
10 can reinforce the firmness of piston body 1, and intensity is higher, and the service life is longer, while piston rod can be absorbed in silencer pad 12
The noise generated when overall work, it is more environmentally-friendly.
The outside of the piston body of rod 2 is coated with electrophoretic coating, the high compactness and wear-resistant pressure-resistant of electrophoretic coating, can be to avoid
The piston body of rod 2 is corroded, and extends the service life of the piston body of rod 2.
Piston body 1 is cavity structure, is uniformly provided with keyway 3, the inner cavity top of piston body 1 in the middle part of the inner cavity of piston body 1
Offer loose slot 4 respectively with lower part, loose slot 4 is in V-shape, and loose slot 4 is connected with keyway 3, the outside of the piston body of rod 2
Lower part is equipped with flat key 5 compatible with keyway 3, and the outside of the piston body of rod 2 is symmetrically socketed with axle sleeve 7 compatible with loose slot 4
With stop collar 9, and side of the axle sleeve 7 far from stop collar 9 is in contact with flat key 5, and axle sleeve 7 is landing shape, and axle sleeve 7 and piston
The body of rod 2 is interference fitted, and the stability of interference fit is higher, avoids axle sleeve 7 from sliding, and the axle sleeve 7 of landing shape can be with V
The loose slot 4 of type forms better cooperation, and when the piston body of rod 2 is hit, shaken, axle sleeve 7 can be in the inside of loose slot 4
Moving up and down by a small margin, so that spring pocket 8 is stretched or compresses, the elastic force effect of spring pocket 8 can be used to buffering collision of closed
Power improves protectiveness, extends the service life of the piston body of rod.
The inner cavity of loose slot 4 is fixedly connected with the seal washer 6 to match with axle sleeve 7, gasket far from the side of keyway 3
Circle 6 is elastic polyurethane seal washer, and seal washer 6 can be made to have good deformability and restorability, Neng Gouyu
Axle sleeve 7 preferably matches, and leakproofness is stronger.
The outside of axle sleeve 7 is socketed with spring pocket 8, and the upper and lower ends of spring pocket 8 are solid with seal washer 6 and stop collar 9 respectively
Fixed connection.
Working principle: when installing and using, the piston body of rod 2 is first inserted into the inside of piston body 1, passes through 5 phase of keyway 3 and flat key
Mutually cooperation, so that piston body 1 and the piston body of rod 2 are assembled together, then in the socket of the outside of the piston body of rod 2 and 4 phase of loose slot
Matched axle sleeve 7 is sealed between axle sleeve 7 and loose slot 4 by seal washer 6, it is ensured that leakproofness, when the piston body of rod 2 by
To hit, vibration when, axle sleeve 7 can in the inside of loose slot 4 moving up and down by a small margin so that spring pocket 8 be stretched or
Compression is acted on using the elastic force that 8 deformation of spring pocket generates, and can be improved protectiveness with buffering percussive force, be extended making for the piston body of rod
Use the service life.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of big arm cylinder piston rod, including piston body (1) and the piston body of rod (2), which is characterized in that the piston body (1)
For cavity structure, be uniformly provided with keyway (3) in the middle part of the inner cavity of the piston body (1), the inner cavity top of the piston body (1) and
Lower part offers loose slot (4) respectively, and the loose slot (4) is in V-shape, and the loose slot (4) is connected with keyway (3),
The outer lower portion of the piston body of rod (2) is equipped with compatible flat key (5), the outside of the piston body of rod (2) are right with keyway (3)
Title is socketed with and loose slot (4) compatible axle sleeve (7) and stop collar (9), and the one of the axle sleeve (7) separate stop collar (9)
Side is in contact with flat key (5), and the inner cavity of the loose slot (4) is fixedly connected with and axle sleeve (7) phase far from the side of keyway (3)
The seal washer (6) matched is socketed with spring pocket (8) on the outside of the axle sleeve (7), the upper and lower ends difference of the spring pocket (8)
It is fixedly connected with seal washer (6) and stop collar (9).
2. a kind of big arm cylinder piston rod according to claim 1, which is characterized in that the outside spiral shell of the piston body (1)
Line is connected with protective jacket (10), is uniformly provided with groove (11) on the outside of the protective jacket (10), the inside of the groove (11)
Equipped with silencer pad (12).
3. a kind of big arm cylinder piston rod according to claim 1, which is characterized in that the outside of the piston body of rod (2)
It is coated with electrophoretic coating.
4. a kind of big arm cylinder piston rod according to claim 1, which is characterized in that the seal washer (6) is poly- ammonia
Ester elastomer seal washer.
5. a kind of big arm cylinder piston rod according to claim 1, which is characterized in that the axle sleeve (7) is landing shape,
And the axle sleeve (7) and the piston body of rod (2) are interference fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821181666.1U CN208474482U (en) | 2018-07-25 | 2018-07-25 | A kind of big arm cylinder piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821181666.1U CN208474482U (en) | 2018-07-25 | 2018-07-25 | A kind of big arm cylinder piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208474482U true CN208474482U (en) | 2019-02-05 |
Family
ID=65208051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821181666.1U Expired - Fee Related CN208474482U (en) | 2018-07-25 | 2018-07-25 | A kind of big arm cylinder piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208474482U (en) |
-
2018
- 2018-07-25 CN CN201821181666.1U patent/CN208474482U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 Termination date: 20200725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |