CN207631369U - A kind of compact tensioner - Google Patents
A kind of compact tensioner Download PDFInfo
- Publication number
- CN207631369U CN207631369U CN201721721526.4U CN201721721526U CN207631369U CN 207631369 U CN207631369 U CN 207631369U CN 201721721526 U CN201721721526 U CN 201721721526U CN 207631369 U CN207631369 U CN 207631369U
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- China
- Prior art keywords
- spring
- mandril
- pull rod
- guide holder
- hole
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- 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.)
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Abstract
The utility model discloses a kind of compact tensioners, the pull rod being slidably matched including guide holder, with guide holder, the other end of pull rod is fixedly linked with spring base, it further include the mandril that one end is fixed in engineering machinery, the other end of mandril is slidably arranged in spring base, fuel feeding valve is set on mandril at its fixing end, is set at least two springs on spring base, and be respectively positioned between spring base and guide holder.The utility model uses double-spring structure, avoids the line footpath for increasing big spring without limitation, and the difficulty of processing of spring is made to increase；Inboard wall of cylinder block setting graphite sliding sleeve can utmostly avoid the friction of mandril and inboard wall of cylinder block；The case where setting of double-layer spring outer spring set can prevent double-layer spring two layers of spring misplaces in compaction process, and by the setting of two-part spring pocket enable to spring pocket follow spring it is flexible by stretch, always be in completely cladding spring state.
Description
Technical field
The utility model is related to a kind of compact tensioners.
Background technology
Due to the fast development of construction machinery industry at home in recent years, country carries forward vigorously construction machinery production industry
Development, simultaneously because China's construction machinery production industry level is more external relatively backward compared to still, Foreign Engineering Machinery giant jail
The handle in jail holds key technology, contains the development of domestic manufacture level.With the increase of the demand of engineering machinery at home, supply
Contradiction is needed gradually to increase.In large-tonnage tensioning apparatus, tonnage is bigger, and the line footpath of spring is bigger, and processing is more difficult.
Utility model content
The purpose of this utility model is that overcoming defect existing in the prior art, a kind of compact tensioner is provided,
It can avoid increasing without limitation the line footpath of big spring, and the difficulty of processing of spring is made to increase.
To achieve the above object, the technical solution of the utility model is a kind of compact tensioner of design, including is oriented to
Seat, the pull rod being slidably matched with guide holder, the other end and the spring base of pull rod are fixedly linked, and further include that one end is fixed on engineering machine
The other end of mandril on tool, mandril is slidably arranged in spring base, and fuel feeding valve, spring is arranged on mandril at its fixing end
At least two springs are set on seat, and are respectively positioned between spring base and guide holder.By adding spring, multiple springs is made to make jointly
With, the spring of smaller line footpath can be used but to play the role of the big line footpath spring of same tonnage track takeup and played, energy
It enough avoids increasing without limitation the line footpath of big spring, and the difficulty of processing of spring is made to increase.
Further technical solution is there are two spring is set, and one small one is sleeved on spring base greatly from the inside to the outside.Little spring
It is oppositely oriented with big spring.
Another technical solution is there are two spring is set, and specification unanimously forms double-layer spring, and bullet is arranged outside double-layer spring
Spring set, spring pocket is two-part structure, wherein one section of outer surface for being set in another section, the length after two sections of contractions is more than spring
The minimum length of compression.Folded two spring its elastic force set are strengthened, and the line footpath of each spring is little, easy processing.Spring pocket
For two-part structure, each section one end is born against and (is preferably fixedly installed) on spring base and guide holder, in spring pressure
When tight, two sections of spring interplantings are close to move toward one another, and two sections of spring interplantings are separate when spring unclamps moves toward one another.
Further technical solution is that guide holder is in the stepped cylindrical bodily form, and first through hole, pull rod is arranged at center axis
It is arranged in first through hole, spacer pin is fixedly installed in the end of pull rod being located in first through hole.
Further technical solution is that an annular sleeve is arranged outside pull rod, and annular sleeve is fixedly connected on guide holder；It is described
Spring base is the stepped cylindrical bodily form, and the second through-hole is arranged at center axis, and pull rod is arranged in the second through-hole, solid by screw
Surely it is connected on spring base.
Further technical solution is that the second through-hole is stepped hole, and pull rod is located in aperture, setting and spring base in macropore
The cylinder body being fixedly connected, the interior sliding setting mandril of cylinder body.
Further technical solution is that sliding sleeve made of graphite is fixedly installed in inboard wall of cylinder block.In this way can to avoid mandril with
Friction when inboard wall of cylinder block slides, the graphite sliding sleeve more renewed again after a period of use.
The advantages of the utility model and advantageous effect are：The utility model uses double-spring structure, avoids increasing without limitation
The line footpath of spring is increased, and the difficulty of processing of spring is made to increase；Inboard wall of cylinder block setting graphite sliding sleeve can utmostly avoid pushing up
The friction of bar and inboard wall of cylinder block；The setting of double-layer spring outer spring set can prevent double-layer spring two layers of spring in compaction process
The case where misplacing, and by the setting of two-part spring pocket enable to spring pocket follow spring it is flexible by stretch,
Always it is in the state of cladding spring completely；By adding spring, makes multiple spring collective effects, smaller line footpath can be used
Spring, which but plays the role of the big line footpath spring of same tonnage track takeup, to be played, and can avoid increasing big spring without limitation
Line footpath, and the difficulty of processing of spring is made to increase.
Description of the drawings
Fig. 1 is that a kind of compact tensioner embodiment one of the utility model removes the sectional side elevation after sliding sleeve and spring pocket；
Fig. 2 be in Fig. 1 A to structural schematic diagram；
Fig. 3 is the enlarged diagram of guide holder in Fig. 1；
Fig. 4 is the enlarged diagram that cylinder body increases after sliding sleeve in Fig. 1；
Fig. 5 is Fig. 1 removals mandril, increases the schematic diagram after spring pocket.
In figure：1, guide holder；2, pull rod；3, spring base；4, mandril；5, fuel feeding valve；6, spring；7, spring pocket；8, first
Through-hole；9, annular sleeve；10, the second through-hole；11, cylinder body；12, sliding sleeve.
Specific implementation mode
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and the protection model of the utility model cannot be limited with this
It encloses.
Embodiment one：
As shown in Figures 1 to 5, the utility model is a kind of compact tensioner, including guide holder 1 and the cunning of guide holder 1
The pull rod 2 of dynamic cooperation, the other end and the spring base 3 of pull rod 2 are fixedly linked, and further include the mandril that one end is fixed in engineering machinery
4, the other end of mandril 4 is slidably arranged in spring base 3, setting fuel feeding valve 5 at its close fixing end on mandril 4, on spring base 3
At least two springs 6 are set with, and are respectively positioned between spring base 3 and guide holder 1.There are two spring 6 is set, and unanimously formation is double for specification
Spring pocket 7 is arranged in layer spring 6, double-layer spring 6 outside, and spring pocket 7 is two-part structure, wherein one section of appearance for being set in another section
Face, the length after two sections of contractions are more than the minimum length of spring-compressed.Guide holder 1 is in the stepped cylindrical bodily form, at center axis
First through hole 8 is set, and pull rod 2 is arranged in first through hole 8, the end fixed setting limit of pull rod 2 being located in first through hole 8
Pin.One annular sleeve 9 is set outside pull rod 2, and annular sleeve 9 is fixedly connected on guide holder 1；The spring base 3 is ladder circle cylinder
The second through-hole 10 is arranged at center axis for shape, and pull rod 2 is arranged in the second through-hole 10, and spring is fixedly connected on by screw
On seat 3.Second through-hole 10 is stepped hole, and pull rod 2 is located in aperture, the cylinder body 11 that setting is fixedly connected with spring base 3 in macropore,
Sliding setting mandril 4 in cylinder body 11.Sliding sleeve 12 made of graphite is fixedly installed in 11 inner wall of cylinder body.
Embodiment two：
With being different only in that for embodiment one, there are two spring is set, one small one is sleeved on spring base greatly from the inside to the outside.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into retouching.
Claims (7)
1. a kind of compact tensioner, which is characterized in that the pull rod being slidably matched including guide holder, with guide holder, pull rod
The other end is fixedly linked with spring base, further includes the mandril that one end is fixed in engineering machinery, the other end sliding setting of mandril
In spring base, fuel feeding valve is set on mandril at its fixing end, is set at least two springs on spring base, and be respectively positioned on bullet
Between spring abutment and guide holder.
2. a kind of compact tensioner as described in claim 1, which is characterized in that there are two the spring is set, one is small by one
It is sleeved on spring base from the inside to the outside greatly.
3. a kind of compact tensioner as described in claim 1, which is characterized in that there are two the spring is set, and specification
It is consistent to form double-layer spring, spring pocket is set outside double-layer spring, and spring pocket is two-part structure, wherein one section is set in another section
Outer surface, two sections shrink after length be more than spring-compressed minimum length.
4. a kind of compact tensioner as claimed in claim 2 or claim 3, which is characterized in that the guide holder is in stepped cylindrical
First through hole is arranged at center axis for the bodily form, and pull rod is arranged in first through hole, the end of pull rod being located in first through hole
Spacer pin is fixedly installed.
5. a kind of compact tensioner as claimed in claim 4, which is characterized in that an annular is arranged outside the pull rod
Set, annular sleeve are fixedly connected on guide holder；The spring base is the stepped cylindrical bodily form, and it is logical to be arranged second at center axis
Hole, pull rod are arranged in the second through-hole, are fixedly connected on spring base by screw.
6. a kind of compact tensioner as claimed in claim 5, which is characterized in that second through-hole is stepped hole, is drawn
Bar is located in aperture, the cylinder body that setting is fixedly connected with spring base in macropore, sliding setting mandril in cylinder body.
7. a kind of compact tensioner as claimed in claim 6, which is characterized in that graphite is fixedly installed in the inboard wall of cylinder block
Manufactured sliding sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721721526.4U CN207631369U (en) | 2017-12-12 | 2017-12-12 | A kind of compact tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721721526.4U CN207631369U (en) | 2017-12-12 | 2017-12-12 | A kind of compact tensioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207631369U true CN207631369U (en) | 2018-07-20 |
Family
ID=62863118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721721526.4U Active CN207631369U (en) | 2017-12-12 | 2017-12-12 | A kind of compact tensioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207631369U (en) |
-
2017
- 2017-12-12 CN CN201721721526.4U patent/CN207631369U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214400 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Patentee after: Jiangsu Changling hydraulic Limited by Share Ltd Address before: 214400 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Patentee before: Jiangyin Changling Machinery Manufacturing Co., Ltd. |