CN209228781U - Hydraulic cylinder guide sleeve anti-loose structure - Google Patents
Hydraulic cylinder guide sleeve anti-loose structure Download PDFInfo
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- CN209228781U CN209228781U CN201822267220.7U CN201822267220U CN209228781U CN 209228781 U CN209228781 U CN 209228781U CN 201822267220 U CN201822267220 U CN 201822267220U CN 209228781 U CN209228781 U CN 209228781U
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- retainer ring
- guide sleeve
- groove
- protrusion
- hydraulic cylinder
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Abstract
The utility model discloses a kind of hydraulic cylinder guide sleeve anti-loose structure, including cylinder barrel, guide sleeve, the first groove of the outer wall setting circumferentially extending of the cylinder barrel, the second grooves of the outer wall setting circumferentially extending of the guide sleeve；It further include fastener, the fastener includes the first retainer ring and the second retainer ring, and first retainer ring and second retainer ring are semi-circular shape part；Ring-shape accessory is formed after the opposite connection of the semicircular ring of first retainer ring and second retainer ring；First retainer ring, second retainer ring inner wall be both provided with the first protrusion, the second protrusion inwardly, there is first protrusion profile for being adapted to first groove, second protrusion to have the profile of adaptation second groove；When the fastener is set on the cylinder barrel and guide sleeve, first protrusion, second protrusion are respectively fallen in first groove and second groove；The free end of first retainer ring and second retainer ring corresponds to each other and connects.
Description
Technical field:
The utility model relates to hydraulic cylinders, and in particular to a kind of hydraulic cylinder guide sleeve anti-loose structure.
Background technique:
Hydraulic cylinder is divided into single-acting formula hydraulic cylinder and double-acting type hydraulic cylinder, and single-acting formula hydraulic cylinder is pushed using hydraulic
Piston moves in the same direction as, and the piston rod in piston driving hydraulic cylinder is transported in the same direction as in hydraulic cylinder
It is dynamic, and counter motion then relies on gravity or elastic force to realize；The movement of the positive and negative both direction of double-acting type hydraulic cylinder depends on hydraulic
Power is realized.Either single-acting formula hydraulic cylinder and double-acting type hydraulic cylinder, piston rod require to do in hydraulic cylinder reciprocal
Movement, during piston rod moves reciprocatingly in hydraulic cylinder, axial dipole field can occur for piston rod, so that piston rod does not exist
The axial centre position of hydraulic cylinder, can seriously affect the normal use of hydraulic cylinder.Therefore, the hydraulic cylinder of existing hydraulic cylinder and
Guide sleeve is threadedly coupled, and guide sleeve ensure that piston rod and hydraulic cylinder keep same axis degree.
But if hydraulic cylinder is chronically in the higher environment of vibration frequency, it may result in the internal screw thread of hydraulic cylinder
With the outer abrasion of guide sleeve, cause to loosen or even fall off between guide sleeve and hydraulic cylinder, existing hydraulic cylinder guide sleeve is prevented
Loose measure method is that screw thread glue is squeezed into the screw thread of guide sleeve, although locking effect can be played, detachable maintaining difficulty is larger；
The anti-loose method for adding jackscrew is taken, although can also play locking effect, it is required after disassembly every time with brill top wire hole,
Process is too cumbersome.
Application No. is a documents of CN201820343710.8 to disclose a kind of anti-loose structure, in the periphery of cylinder barrel
Face, guide sleeve outer peripheral surface groove is respectively set, and fastener is set, fastener is cylindrical element, and fastener is set on cylinder barrel
Later, the connecting plate being arranged thereon drops into groove after bending, so as to which cylinder barrel and guide sleeve are linked together, from
And realize locking purpose, but the technique of this mode is excessively cumbersome, also needing to bend connecting plate in disassembly makes it from recessed
It is exited in slot.It is broken after being used for multiple times due to fatigue, there is a problem of that physical life is low.
Utility model content:
The utility model devise hydraulic cylinder guide sleeve anti-loose structure so that guide sleeve be mounted on it is more tight on hydraulic cylinder
Gu while mounting and dismounting conveniently, and the service life is longer for the structure.
The technical solution is hydraulic cylinder guide sleeve anti-loose structure, including cylinder barrel, guide sleeve, the outer wall setting of the cylinder barrel
First groove of circumferentially extending, the second groove of the outer wall setting circumferentially extending of the guide sleeve；It further include fastener, it is described tight
Firmware includes the first retainer ring and the second retainer ring, and first retainer ring and second retainer ring are semi-circular shape part；Described
Two ends of the semicircular ring of one retainer ring and second retainer ring are free end；The half of first retainer ring and second retainer ring
Form ring-shape accessory after the opposite connection of annulus, the fastener have can be set in it is interior outside the cylinder barrel and guide sleeve
Diameter；First retainer ring, second retainer ring inner wall be both provided with inwardly first protrusion, second protrusion, described first is convex
It rises with the profile for being adapted to first groove, the profile of second protrusion with adaptation second groove；The fastening
When part is set on the cylinder barrel and guide sleeve, first protrusion, second protrusion respectively fall in first groove
In second groove；The free end of first retainer ring and second retainer ring corresponds to each other and connects.
Its technical principle is: in conventional connection, guide sleeve is partially inserted into cylinder barrel, and the part of insertion uses screw thread
Connection.Due to working environment, may be loosened after a period of time.Documents are provided with more in the periphery of cylinder barrel and guide sleeve
Then a groove is arranged a lock washer and is set on cylinder barrel and wire sleeve, while also having multiple fastenings on lock washer
Piece can drop into groove after bending connecting plate, and then realize the connection to cylinder barrel and guide sleeve, so that in vibration
In the case of, axial separation is less likely to occur the two.But the check washer installation and removal in documents are required to fastening
Piece is bent, thus complex process, and permanent bending place later is easy to happen fatigue fracture and check washer is scrapped.This
The fastener of scheme setting is set in outside cylinder barrel and guide sleeve, and the first protrusion and the second protrusion on fastener are covering
It is all respectively fallen in after if in the first groove and the second groove on cylinder barrel and guide sleeve, prevents from cylinder under Vibration Condition in this way
Axial separation between cylinder and guide sleeve.Fastener is split as two pieces by this programme, i.e. the first retainer ring and the second retainer ring, the two are
Semi-circular shape part.The fastener of circular ring shape is formed after the opposite connection of two semi-circular shape parts.First by the first retainer ring, second
Retainer ring is set in outside cylinder barrel and guide sleeve, so that the first protrusion drops into the first groove, the second protrusion drops into the second groove
In.Then the free end of two semi-circular shape parts is connected, such as by bolted connection.Can thus it make
Fastener is fixed on outside cylinder barrel and guide sleeve.
Further, two free ends of first retainer ring and two free ends of second retainer ring are correspondingly
It is bolted.
Further, a free end of first retainer ring is connected with a free end hinge of second retainer ring,
Another free end of first retainer ring and another free end of second retainer ring are bolted.
Further, the material of the fastener is metal.
Further, first groove, second groove are annular groove.
Further, first groove, second groove are partial annular grooves.
Further, first protrusion and second protrusion are annular protrusion.
Further, first protrusion and second protrusion are part-toroidal protrusion.
The beneficial effect of the utility model is:
1, the hydraulic cylinder wire sleeve anti-loose structure of this programme, increase one be set in external fastener realize cylinder barrel and
The axial connection of guide sleeve, so that it is axially not readily separated in the case where the work of vibration is adjusted；
2, fastener is arranged to the retainer ring of two semi-circular shape, and the fastener of circular ring shape is formed after opposite connection, such
Design is easily installed and dismantles, and avoids installation and removal in documents and needs the technique of bending connecting plate, and uses the longevity
It orders longer；
3, fastener is set as that one end is hinged, and one end is bolted, further such that installation and removal are more simple.
Detailed description of the invention:
Fig. 1 is the schematic diagram of the section structure of the utility model；
Fig. 2 is the schematic diagram of the section structure that the utility model does not install fastener；
Fig. 3 is the side view of fastener；
Fig. 4 is the A-A cross-sectional view of fastener.
Marked in the figure: 1- cylinder barrel, 2- guide sleeve, 3- fastener, the first groove of 11-, the second groove of 21-, 31- first are convex
It rises, the second protrusion of 32-, 33- third protrusion, the first retainer ring of 34-, the second retainer ring of 35-, 37- bolt, 38- hinge joint, 50- third
Groove.
Specific embodiment:
Embodiment:
As shown in Fig. 1~2, internal screw thread is arranged in 1 inner wall of cylinder barrel of hydraulic cylinder, and guide sleeve 2 is inserted into cylinder barrel 1, guide sleeve 2
Outer wall external screw thread is set, cylinder barrel 1 and guide sleeve 2, which are threadedly coupled, completes combination.But in the environment of vibration, the two is easy pine
It is de-, it is generally reinforced by stamping screw thread glue, but effect is limited.
This programme is, on the circumferential surface of cylinder barrel 1, on the outer peripheral surface of guide sleeve 2, the position connected close to the two, if
It is equipped with the first groove 11, the second groove 21.
It as shown in figs. 34, further include a fastener 3, fastener 3 includes the first retainer ring 34 and the second retainer ring 35, described
First retainer ring 34 and the second retainer ring 35 are all semicircular ring shape, and diameter is equal, and the first retainer ring 34 and the second retainer ring 35 all have
The free end that the profile of semicircular arc and two ends are formed.By one of an end of the first retainer ring 34 and the second retainer ring 35
End is connected by hinged mode, and another end of the first retainer ring 34 and another end of the second retainer ring 35 pass through spiral shell
It tethers and connects, thus form the clip of a circular ring shape, the clip internal diameter of the circular ring shape is equal to the outer diameter of cylinder barrel 1 and guide sleeve 2.
It can be by 3 sets of the fastener peripheries in cylinder barrel 1 and wire sleeve 2.
The first protrusion with the cooperation of the first groove 11 is wherein both provided on the inner wall of the first retainer ring 34 and the second retainer ring 35
31 and with the second groove 21 cooperate the second protrusion 32.Process for using are as follows: after guide sleeve 2 is screwed into cylinder barrel 1, will fasten
Part 3 is set on guide sleeve 2 and cylinder barrel 1, is fulcrum, the first retainer ring 34 and the relatively close rotation of the second retainer ring 35 with hinge joint 38
Turn, so that the first protrusion 31 drops into the first groove 11, the second protrusion 32 is dropped into the second groove 21, then by fastener
3 two free ends for not setting articulated connection are bolted, and therefore guide sleeve 2 and cylinder barrel 1 are just consolidated by fastener 3 in this way
Fixed, in the case of vibrations, the axial direction of guide sleeve 2 and cylinder barrel 1 is restrained.
This programme is fallen by the protrusion of fastener 3 realizes engaging in the groove of cylinder barrel 1 and guide sleeve 2, due to adjustable
Clamping piece, conveniently remove and install.And the check washer in documents needs to carry out connecting plate in installation and removal
Bending, thus inconvenience is mounted and dismounted, and after a number of uses, bending place will will appear fatigue fracture and make locking pad
Piece is scrapped.
In one embodiment, cylinder barrel 1 and guide sleeve 2 have a spacing after threaded connection between the end face of the two
From the distance constitutes third groove 50, therefore the corresponding setting on the first retainer ring 34 and the second retainer ring 35 and third groove
50 matched third protrusions 33.In the present embodiment, the first groove 31 and 32 third groove 50 of the second groove are all complete arcs
Groove, and the first protrusion 31, the second protrusion 32, third protrusion 33 can be complete annular protrusion, or the ring of part
Shape protrusion.As long as first protrusion 31, the second protrusion 32, third are convex after fastener 3 is set in cylinder barrel 1 and guide sleeve 2
Playing 33 can respectively fall in just in the first groove 31, the second groove 32 and third groove 33.
It in one embodiment, can also in order not to cause cylinder barrel 1 and the intensity of guide sleeve 2 to be lower because of opening up for groove
First groove 11 is set and the second groove 21 is the annular groove of part.Same first protrusion 31 and the second protrusion 32 are part
Annular protrusion.As long as after fastener 3 is set in cylinder barrel 1 and guide sleeve 2, the first protrusion 31, the second protrusion 32, third
Protrusion 33 can be respectively fallen in just in the first groove 31, the second groove 32 and third groove 33.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (8)
1. hydraulic cylinder guide sleeve anti-loose structure, including cylinder barrel, guide sleeve, which is characterized in that the outer wall of the cylinder barrel is arranged circumferential
The first groove extended, the second groove of the outer wall setting circumferentially extending of the guide sleeve；
It further include fastener, the fastener includes the first retainer ring and the second retainer ring, first retainer ring and second retainer ring
It is semi-circular shape part；Two ends of the semicircular ring of first retainer ring and second retainer ring are free end；Described
Ring-shape accessory is formed after the opposite connection of the semicircular ring of one retainer ring and second retainer ring, the fastener has and can be set in
Internal diameter outside the cylinder barrel and guide sleeve；First retainer ring, second retainer ring inner wall be both provided with inwardly first
Protrusion, the second protrusion, the described first raised profile with adaptation first groove, second protrusion have described in adaptation
The profile of second groove；When the fastener is set on the cylinder barrel and guide sleeve, first protrusion, second protrusion
It respectively falls in first groove and second groove；The free end of first retainer ring and second retainer ring is mutual
It corresponds to and connects.
2. hydraulic cylinder guide sleeve anti-loose structure according to claim 1, which is characterized in that two of first retainer ring are certainly
It is bolted correspondingly by holding with two free ends of second retainer ring.
3. hydraulic cylinder guide sleeve anti-loose structure according to claim 1, which is characterized in that one of first retainer ring is certainly
It is connected by holding with a free end hinge of second retainer ring, another free end of first retainer ring and second retainer ring
Another free end be bolted.
4. hydraulic cylinder guide sleeve anti-loose structure according to claim 1, which is characterized in that the material of the fastener is gold
Belong to.
5. hydraulic cylinder guide sleeve anti-loose structure according to claim 1, which is characterized in that first groove, described
Two grooves are annular groove.
6. hydraulic cylinder guide sleeve anti-loose structure according to claim 1, which is characterized in that first groove, described
Two grooves are partial annular grooves.
7. hydraulic cylinder guide sleeve anti-loose structure according to claim 1, which is characterized in that first protrusion and described the
Two protrusions are annular protrusion.
8. hydraulic cylinder guide sleeve anti-loose structure according to claim 1, which is characterized in that first protrusion and described the
Two protrusions are part-toroidal protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822267220.7U CN209228781U (en) | 2018-12-29 | 2018-12-29 | Hydraulic cylinder guide sleeve anti-loose structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822267220.7U CN209228781U (en) | 2018-12-29 | 2018-12-29 | Hydraulic cylinder guide sleeve anti-loose structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209228781U true CN209228781U (en) | 2019-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822267220.7U Active CN209228781U (en) | 2018-12-29 | 2018-12-29 | Hydraulic cylinder guide sleeve anti-loose structure |
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| Country | Link |
|---|---|
| CN (1) | CN209228781U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112497658A (en) * | 2019-09-16 | 2021-03-16 | 无锡市中天塑料保持架制造有限公司 | Plastic retainer processing die |
-
2018
- 2018-12-29 CN CN201822267220.7U patent/CN209228781U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112497658A (en) * | 2019-09-16 | 2021-03-16 | 无锡市中天塑料保持架制造有限公司 | Plastic retainer processing die |
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