CN206299663U - Hydraulic cylinder threaded anti-loosing structure - Google Patents
Hydraulic cylinder threaded anti-loosing structure Download PDFInfo
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- CN206299663U CN206299663U CN201621247474.7U CN201621247474U CN206299663U CN 206299663 U CN206299663 U CN 206299663U CN 201621247474 U CN201621247474 U CN 201621247474U CN 206299663 U CN206299663 U CN 206299663U
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- head
- piston rod
- hydraulic cylinder
- hole
- cylindrical pin
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Abstract
The utility model discloses a kind of hydraulic cylinder threaded anti-loosing structure, including：Piston rod, the end of piston rod is provided with head, and head is screwed together with piston rod, one section of cooperation step is formed between head and piston rod, a through hole is drilled with step is coordinated, elastic cylindrical pin is installed in through hole, realize that head is locking with piston rod by the expansion of elastic cylindrical pin itself.Through the above way, the utility model hydraulic cylinder threaded anti-loosing structure increased the concentricity of head and piston rod, avoid causing head to be rocked due to the gap of screw thread, simultaneously locking measures are reached using the expansion of elastic cylindrical pin itself, avoid because high-frequency high-speed impact shock causes to be threadedly coupled failure between head and piston rod, so as to improve the service life of hydraulic cylinder.
Description
Technical field
The utility model is related to hydraulic cylinder technical field, more particularly to a kind of hydraulic cylinder threaded anti-loosing structure.
Background technology
Aluminum section extruder is divided into two kinds of forward extrusion and reverse extrusion, and the overwhelming majority is forward extrusion at present, its
Operation principle is：Push rod oil cylinder is quick by by the aluminium bar propelling extrusion bucket after heating, then by pressure ram to being placed on extrusion barrel
Interior metal embryo material applies external force, aluminium bar by high-temperature physics deform from mould mouth out after reform into corresponding aluminium section bar, it
Cooling, sawing afterwards goes to next step operation.
Push rod cylinder piston rod is intended to seek quickness and stretches fast contracting, and quickly, typically in more than 0.7M/s, frequency is also higher for its speed,
Typically in 60 times/h.Head and piston rod be threadedly coupled, between head and aluminium bar can frequently fast ram, general producer gives birth to
The life-span of the hydraulic cylinder of product is shorter, and head is easily released, threaded connection failure, and head miscued, and causes the push rod oil cylinder can not
Normal work.
It is general using painting screw thread between existing push rod oil cylinder head and piston rod thread because push rod cylinder structure is compact
Locking glue, or with auger shell pit, load holding screw.But because the temperature of the aluminium bar after heating can reach 400 DEG C or so, spiral shell
The heatproof of the locking glue of line is general below 200 DEG C, and screw thread glue also can be ineffective over time, causes screw thread between head and the body of rod
Joint failure；Holding screw is locking to need drilling, and the bad control of depth, with screwed hole at destructible head when boring, causes tightening
Screw is easily released, and does not have locking effect.
Utility model content
The utility model can effectively solve the problem that mainly solving the technical problems that provide a kind of hydraulic cylinder threaded anti-loosing structure
The problem of locking thread, improves the service life of hydraulic cylinder.
In order to solve the above technical problems, the technical scheme that the utility model is used is：A kind of hydraulic cylinder screw thread is provided
Anti-loose structure, including：Piston rod, the end of piston rod is provided with head, and head is screwed together with piston rod,
One section of cooperation step is formed between head and piston rod, a through hole is drilled with step is coordinated, be provided with through hole
Elastic cylindrical pin, realizes that head is locking with piston rod by the expansion of elastic cylindrical pin itself.
In one preferred embodiment of the utility model, the head is connected through a screw thread mode and is tightened in one with piston rod
Rise.
In one preferred embodiment of the utility model, the size of the elastic cylindrical pin and the size of through hole
It is engaged.
It is also further by rushing point mode at the aperture at the through hole two ends in one preferred embodiment of the utility model
Realize locking.
The beneficial effects of the utility model are：The utility model hydraulic cylinder threaded anti-loosing structure increased head and piston rod
Concentricity, it is to avoid because the gap of screw thread causes head to be rocked, while being reached using the expansion of elastic cylindrical pin itself locking
Measure, it is to avoid because high-frequency high-speed impact shock causes to be threadedly coupled failure between head and piston rod, so as to improve hydraulic pressure
The service life of cylinder.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the utility model embodiment, below will be to needed for embodiment description
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Other accompanying drawings are obtained, wherein：
Fig. 1 is the structural representation of hydraulic cylinder threaded anti-loosing structure one of the present utility model preferred embodiment；
The mark of each part is as follows in accompanying drawing：1st, piston rod, 2, head, 3, elastic cylindrical pin, 4, coordinate step.
Specific embodiment
The technical scheme in the utility model embodiment will be clearly and completely described below, it is clear that described
Embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
Fig. 1 is referred to, the utility model embodiment includes：
A kind of hydraulic cylinder threaded anti-loosing structure, including：Piston rod 1, the end of piston rod 1 is provided with head 2, head 2 and work
Stopper rod 1 is screwed together, and head 2 is connected through a screw thread mode and is screwed together with piston rod 1.
One section of cooperation step 4 is formed between head 2 and piston rod 1, increases the concentricity of head 2 and piston rod 1, it is ensured that bar
After first 2 are tightened by standard screw-down torque and piston rod, head 2 will not be caused to rock due to the gap of screw thread.
A through hole is drilled with step 4 is coordinated, elastic cylindrical pin 3 is installed, by elastic cylindrical pin 3 itself in through hole
Expansion realizes that head 2 is locking with piston rod 1.
The size of elastic cylindrical pin 3 is engaged with the size of through hole, according to the standard of elastic cylindrical pin 3 with brill
One through hole, during elastic cylindrical pin 3 then knocked in into through hole, using elastic cylindrical pin 3, the expansion of itself reaches locking measures, finally
At the aperture at through hole two ends by rush point mode further realize it is locking.
The beneficial effect of the utility model hydraulic cylinder threaded anti-loosing structure is：
Employ and designed between head 2 and piston rod 1 one section of cooperation step of processing, increase head concentric with piston rod 1
Degree, while avoiding causing head to be rocked due to the gap of screw thread；
After having it is possible to additionally incorporate elastic cylindrical pin 3, using elastic cylindrical pin 3, the expansion of itself reaches locking measures, it is to avoid
Because high frequency, high speed impact vibration cause to be threadedly coupled failure between head 2 and piston rod 1, so as to improve the use of hydraulic cylinder
Life-span.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model description, or directly or indirectly it is used in other phases
The technical field of pass, is similarly included in scope of patent protection of the present utility model.
Claims (4)
1. a kind of hydraulic cylinder threaded anti-loosing structure, it is characterised in that including：Piston rod, the end of piston rod is provided with head, head
It is screwed together with piston rod,
One section of cooperation step is formed between head and piston rod, is drilled with step is coordinated in a through hole, through hole and is installed flexible
Straight pin, realizes that head is locking with piston rod by the expansion of elastic cylindrical pin itself.
2. hydraulic cylinder threaded anti-loosing structure according to claim 1, it is characterised in that the head passes through spiral shell with piston rod
Line connected mode is screwed together.
3. hydraulic cylinder threaded anti-loosing structure according to claim 1, it is characterised in that the size of the elastic cylindrical pin is big
It is small to be engaged with the size of through hole.
4. hydraulic cylinder threaded anti-loosing structure according to claim 1, it is characterised in that at the aperture at the through hole two ends also
By rush point mode further realize it is locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621247474.7U CN206299663U (en) | 2016-11-22 | 2016-11-22 | Hydraulic cylinder threaded anti-loosing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621247474.7U CN206299663U (en) | 2016-11-22 | 2016-11-22 | Hydraulic cylinder threaded anti-loosing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206299663U true CN206299663U (en) | 2017-07-04 |
Family
ID=59211744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621247474.7U Active CN206299663U (en) | 2016-11-22 | 2016-11-22 | Hydraulic cylinder threaded anti-loosing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206299663U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI645122B (en) * | 2017-07-20 | 2018-12-21 | 王鼎瑞 | Fastening structure and assembling method of fastening structure |
| CN114083240A (en) * | 2021-11-29 | 2022-02-25 | 贵州天义电器有限责任公司 | Welding method for two-body conductive block |
-
2016
- 2016-11-22 CN CN201621247474.7U patent/CN206299663U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI645122B (en) * | 2017-07-20 | 2018-12-21 | 王鼎瑞 | Fastening structure and assembling method of fastening structure |
| CN114083240A (en) * | 2021-11-29 | 2022-02-25 | 贵州天义电器有限责任公司 | Welding method for two-body conductive block |
| CN114083240B (en) * | 2021-11-29 | 2024-03-01 | 贵州天义电器有限责任公司 | Welding method for two-body conductive block |
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