CN209062518U - A kind of hydraulic elongator - Google Patents
A kind of hydraulic elongator Download PDFInfo
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- CN209062518U CN209062518U CN201821415787.8U CN201821415787U CN209062518U CN 209062518 U CN209062518 U CN 209062518U CN 201821415787 U CN201821415787 U CN 201821415787U CN 209062518 U CN209062518 U CN 209062518U
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- oil cylinder
- piston
- close valve
- temperature control
- hydraulic
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Abstract
The utility model provides a kind of hydraulic elongator, including stretching head, the stretching head is equipped with annular protrusion at tail position, the stretching head slidably connects the corresponding piston of shape therewith close to one end of threaded hole, the piston offsets with the annular protrusion, its periphery is simultaneously sealedly connected with oil cylinder, disc spring is equipped between the annular protrusion and the piston and stretcher outer housing, it is characterized by: being provided with sealing element between the oil cylinder and the corresponding piston, the cavity for being suitable for accommodating filled media is disposed within the sealing element, the cavity is equipped with the interface for being suitable for being connected with the external world.The technical solution sealing element can extend on cross section, and sealing surface thereby produces sealing effect, and sealing effect is good.
Description
Technical field
The utility model relates to a kind of hydraulic elongators.
Background technique
Bolts and nuts are that machinery field assembles indispensable components, and the fixed form of bolts and nuts is more solid than other
It is stronger, more reliable to determine mode, thus becomes the most common mode that two or more components are fixed together.Due to
The bolt that certain large scale equipments use is thicker, and pretightning force is very big, if what the fastening and disassembly of bolt were completed by manually
Words, labor intensity are very high.In addition, since the connection between component needs several, more than ten or even tens bolts to realize, manually
Bolt is successively fastened and dismantled, the stress distribution that will cause each link position is uneven, to influence connector
Intensity.
Utility model content
The utility model provides a kind of hydraulic elongator, it is intended to the technical issues of solving in the prior art.
Technical solutions of the utility model are as follows:
A kind of hydraulic elongator, including stretching head, the stretching head are equipped with annular protrusion, the drawing at tail position
It stretching head and slidably connects the corresponding piston of shape therewith close to one end of threaded hole, the piston offsets with the annular protrusion,
Its periphery is simultaneously sealedly connected with oil cylinder, and disc spring is equipped between the annular protrusion and the piston and stretcher outer housing, special
Sign is: being provided with sealing element between the oil cylinder and the corresponding piston, is disposed within the sealing element and is suitable for holding
Receive the cavity of filled media, the cavity, which is equipped with, to be suitable for and the extraneous interface being connected.
Preferably, above-mentioned hydraulic elongator, wherein being connected with check-valves built in the interface.
Preferably, above-mentioned hydraulic elongator, wherein the sealing element is suitable for the sealing surface being slidably connected with the piston
Sealing ring equipped at least one outwardly convex.
Preferably, above-mentioned hydraulic elongator, wherein cutting ferrule quick coupling is connected at the hydraulics inlet of the oil cylinder,
It is additionally provided with temperature control normally close valve on the connecting pipeline of the cutting ferrule quick coupling, when the transducing part of the temperature control normally close valve detects
When being lower than preset temperature threshold to hydraulic oil temperature, the temperature control normally close valve keeps normally closed, closes the connecting pipeline；When described
When the transducing part of temperature control normally close valve detects that hydraulic oil temperature reaches preset temperature threshold, the temperature control normally close valve is opened, institute
Connecting pipeline unlatching is stated, hydraulic oil enters oil cylinder through the cutting ferrule quick coupling.
Preferably, above-mentioned hydraulic elongator, wherein the screw thread hole location close to the stretching head is equipped with and the cylinder
The outside of the outer ring pedestal that body is fixedly connected, the outer ring pedestal is equipped with gear set, and inside is connected with and the gear set phase
The gear of linkage pulls out set, and the gear set includes intermeshing driving wheel and driven wheel, and the driven wheel is pulled out with the gear
Set is connected.
Preferably, above-mentioned hydraulic elongator, wherein the inner wall covering of the oil cylinder is connected with composite layer.
Preferably, above-mentioned hydraulic elongator, wherein the composite layer passes through respectively around the both ends of the oil cylinder
The joint face at the oil cylinder both ends is connected with the outer surface of hydraulic elongator outer housing.
The beneficial effect of the utility model compared with the prior art is mainly reflected in the following aspects:
(1) it is disposed within the sealing element being arranged between the oil cylinder of the technical solution and corresponding piston and is suitable for accommodating filling
The cavity of medium, cavity are equipped with the interface for being suitable for being connected with the external world, which can be compressed in the state of being not filled by medium,
To which the sealing element can be pushed into narrow holding tank and be fixed, sealing element can then be filled medium and therewith
It expands.The sealing element is preferably made of elastic material.So if sealing element is filled in a manner of internal over pressure, it can
Extend on cross section, sealing surface thereby produces sealing effect.Gas, such as air are preferably used for filled media, especially
It is compressed air.
(2) temperature control normally close valve is arranged in the technical solution on the fluid pressure line of pressure distributor, when the biography of temperature control normally close valve
When sense part detects hydraulic oil temperature lower than preset temperature threshold, temperature control normally close valve keeps normally closed, cuts off pressure distributor
Fluid pressure line；When the transducing part of temperature control normally close valve detects that hydraulic oil temperature reaches preset temperature threshold, temperature control normally close valve
It opens, the fluid pressure line of pressure distributor is opened, and it can be used to guarantee to enter the hydraulic oil inside hydraulic elongator to be in conjunction
Suitable oil temperature mainly avoids the too low service life for influencing hydraulic elongator of oil temperature under northern area cold environment.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the utility model specific embodiment structural schematic diagram；
Fig. 2 is composite layer attachment structure schematic diagram in the utility model specific embodiment.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
As shown in Figure 1, a kind of hydraulic elongator, including stretching head 1, the stretching head 1 are equipped with ring at tail position
Shape protrusion 10, the stretching head 1 slidably connect the corresponding piston 2 of shape therewith close to one end of threaded hole, the piston 2 with
The annular protrusion 10 offsets, and periphery is simultaneously sealedly connected with oil cylinder 3, the annular protrusion 10 and the piston 2 and stretcher
It is equipped with disc spring 5 between outer housing 4, sealing element 6 is provided between the oil cylinder 3 and the corresponding piston 2, in the sealing element
The cavity 60 for being suitable for accommodating filled media is disposed within 6, the cavity 60 is equipped with the interface 61 for being suitable for being connected with the external world.
Wherein check-valves is connected with built in the interface 61.
The sealing surface that wherein sealing element 6 is suitable for being slidably connected with the piston 2 is equipped at least one outwardly convex
Sealing ring.
It is disposed within the sealing element being arranged between the oil cylinder of the technical solution and corresponding piston and is suitable for accommodating filling Jie
The cavity of matter, cavity are equipped with the interface for being suitable for being connected with the external world, which can be compressed in the state of being not filled by medium, from
And the sealing element can be pushed into narrow holding tank and be fixed, sealing element then can be filled medium and send out therewith
Raw expansion.The sealing element is preferably made of elastic material.It, can be so if fill sealing element in a manner of internal over pressure
Extend on cross section, sealing surface thereby produces sealing effect.Gas, such as air are preferably used for filled media, especially
Compressed air.
Cutting ferrule quick coupling 7, the company of the cutting ferrule quick coupling 7 are wherein connected at the hydraulics inlet of the oil cylinder 5
Siphunculus road is additionally provided with temperature control normally close valve, when the transducing part of the temperature control normally close valve detects hydraulic oil temperature lower than preset
When temperature threshold, the temperature control normally close valve keeps normally closed, closes the connecting pipeline；When the transducing part of the temperature control normally close valve
When detecting that hydraulic oil temperature reaches preset temperature threshold, the temperature control normally close valve is opened, and the connecting pipeline is opened, hydraulic oil
Enter oil cylinder through the cutting ferrule quick coupling.
The outer ring pedestal 8 being fixedly connected with the cylinder body 3 is wherein equipped with close to the screw thread hole location of the stretching head 1,
The outside of the outer ring pedestal 8 is equipped with gear set 9, and inside is connected with the gear being connected with the gear set 9 and pulls out set 11, institute
Stating gear set 9 includes intermeshing driving wheel 90 and driven wheel 91, and the driven wheel 91 pulls out set 11 with the gear and is connected.
Temperature control normally close valve is arranged in the technical solution on the fluid pressure line of pressure distributor, when the detecting means of temperature control normally close valve
When sorting measures hydraulic oil temperature lower than preset temperature threshold, temperature control normally close valve keeps normally closed, cuts off the hydraulic of pressure distributor
Pipeline；When the transducing part of temperature control normally close valve detects that hydraulic oil temperature reaches preset temperature threshold, temperature control normally close valve is opened,
The fluid pressure line of pressure distributor is opened, and it can be used to guarantee to enter the hydraulic oil inside hydraulic elongator to be in suitable oil
Temperature mainly avoids the too low service life for influencing hydraulic elongator of oil temperature under northern area cold environment.
As shown in Fig. 2, wherein the inner wall covering of the oil cylinder 3 is connected with composite layer 30.
Wherein the composite layer 30 respectively around the oil cylinder 3 both ends through the joint face at the oil cylinder both ends with
The outer surface of hydraulic elongator outer housing is connected.
Oil cylinder and outer housing are integrally connected by the technical solution by composite layer 30, and the compressive resistance integrally born mentions
Height, plays that cylinder body is explosion-proof, anti-crack function.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (5)
1. a kind of hydraulic elongator, including stretching head, the stretching head is equipped with annular protrusion, the stretching at tail position
One end of the nearly threaded hole of head rest slidably connects the corresponding piston of shape therewith, and the piston offsets with the annular protrusion,
Periphery is simultaneously sealedly connected with oil cylinder, and disc spring, feature are equipped between the annular protrusion and the piston and stretcher outer housing
It is: is provided with sealing element between the oil cylinder and the corresponding piston, is disposed within the sealing element and is suitable for accommodating
The cavity of filled media, the cavity are equipped with the interface for being suitable for being connected with the external world.
2. hydraulic elongator according to claim 1, it is characterised in that: be connected with check-valves built in the interface.
3. hydraulic elongator according to claim 1 or 2, it is characterised in that: the sealing element is suitable for sliding with the piston
The sealing surface of dynamic connection is equipped with the sealing ring of at least one outwardly convex.
4. hydraulic elongator according to claim 1, it is characterised in that: be connected with card at the hydraulics inlet of the oil cylinder
Quick coupling is covered, temperature control normally close valve is additionally provided on the connecting pipeline of the cutting ferrule quick coupling, when the temperature control normally close valve
When transducing part detects hydraulic oil temperature lower than preset temperature threshold, the temperature control normally close valve keeps normally closed, closes the company
Siphunculus road；When the transducing part of the temperature control normally close valve detects that hydraulic oil temperature reaches preset temperature threshold, the temperature control
Normally close valve is opened, and the connecting pipeline is opened, and hydraulic oil enters oil cylinder through the cutting ferrule quick coupling.
5. hydraulic elongator according to claim 1, it is characterised in that: the screw thread hole location close to the stretching head is set
There is the outer ring pedestal being fixedly connected with the oil cylinder, the outside of the outer ring pedestal is equipped with gear set, and inside is connected with and institute
State the gear that gear set is connected and pull out set, the gear set includes intermeshing driving wheel and driven wheel, the driven wheel with
The gear pulls out set and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821415787.8U CN209062518U (en) | 2018-08-30 | 2018-08-30 | A kind of hydraulic elongator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821415787.8U CN209062518U (en) | 2018-08-30 | 2018-08-30 | A kind of hydraulic elongator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209062518U true CN209062518U (en) | 2019-07-05 |
Family
ID=67091422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821415787.8U Active CN209062518U (en) | 2018-08-30 | 2018-08-30 | A kind of hydraulic elongator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209062518U (en) |
-
2018
- 2018-08-30 CN CN201821415787.8U patent/CN209062518U/en active Active
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