CN207514048U - A kind of split type ship hydraulic nut - Google Patents
A kind of split type ship hydraulic nut Download PDFInfo
- Publication number
- CN207514048U CN207514048U CN201721444790.8U CN201721444790U CN207514048U CN 207514048 U CN207514048 U CN 207514048U CN 201721444790 U CN201721444790 U CN 201721444790U CN 207514048 U CN207514048 U CN 207514048U
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- China
- Prior art keywords
- nut
- piston
- hydraulic
- screw rod
- hydraulic pressure
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- Expired - Fee Related
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- 239000003208 petroleum Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Actuator (AREA)
Abstract
The utility model discloses a kind of split type ship hydraulic nuts, including hydraulic pressure screw rod, hydraulic nut and partial pressure nut, the hydraulic nut includes first annular oil groove, first oil inlet, first petroleum pipeline and the first lock-screw, piston is housed in the first annular oil groove, rubber seal ring is equipped between the first annular oil groove and piston, the rubber seal ring is resisted against the medial surface of piston, air groove is provided on the medial surface of the piston, the first sealing ring for connecting first annular oil groove with piston seal is additionally provided on the piston, the partial pressure nut includes the second helical oil groove, second oil inlet, second petroleum pipeline and the second lock-screw.The utility model is simple in structure, and split structure can reduce difficulty of processing when large scale is processed, and ensures machining accuracy, detachable structure is easy to maintenance, and good airproof performance is easy to installation and removal, extends the service life of hydraulic nut.
Description
【Technical field】
The utility model is related to the technical field of mechanical fitting, more particularly to a kind of technology of split type ship hydraulic nut
Field.
【Background technology】
In ship, there are mainly two types of the connection modes between rudder stock and rudder blade：Flanged joint is connected with centrum, centrum connection
Having can be divided into：There is the connection of key centrum to be connected with no key centrum, wherein being the casting using rudder stock with rudder blade top without the connection of key centrum
Frictional force between the conical surface of steel part transmits torque, so as to achieve the purpose that come about.In order to make the table of the two centrums
There is enough frictional force between face, then need to apply higher pressure, and best stressed method of applying is exactly hydraulic nut
Assembling method.But existing ship hydraulic nut, stroke is too short when dismantling nut, needs further by the mode for dismounting of unloading
Entire nut can be removed；After high pressure oil effect, it is not readily separated between piston and rubber seal ring, rubber seal ring is easily pressurized
Deformation is squeezed into the gap of piston and plunger shaft, generates the phenomenon that piston is killed, hydraulic nut can be even caused when serious
Scrap；In addition, current hydraulic nut is mostly integral piece, this structure is in coarse scale structures, processing difficulties, and difficulty is torn open
It unloads, partial destruction needs integral replacing, waste of resource.
【Utility model content】
The purpose of this utility model is exactly to solve the problems of the prior art, proposes a kind of split type ship hydraulic nut,
Simple in structure, split structure can reduce difficulty of processing when large scale is processed, and ensure machining accuracy, detachable structure, dimension
It repaiies conveniently, good airproof performance is easy to installation and removal, extends the service life of hydraulic nut；By in hydraulic nut and partial pressure spiral shell
Female inner wall setting arc line shaped bullet screw thread increases the surface area of screw thread, improves the forced area and load-carrying ability of screw thread,
Reach L belongs to long screwing length, increases thread surface product from reach, further improves the load-carrying ability of screw thread；
By opening up air groove on the medial surface of piston, the inner plane of piston and rubber seal after disassembly process mesohigh oil release
Enter air between ring in air groove, rubber seal ring is easily detached from piston medial surface, avoid rubber seal ring squeeze into piston with
In the gap of plunger shaft, thus the phenomenon that seizure of piston and hydraulic nut is effectively avoided to scrap；Pass through the first lock-screw and
Two lock-screws easily can carry out release, convenient disassembly to high pressure oil.
To achieve the above object, the utility model proposes a kind of split type ship hydraulic nut, including hydraulic pressure screw rod, liquid
Nut and partial pressure nut are pressed, the hydraulic nut and partial pressure nut and hydraulic pressure screw rod cooperate, and the hydraulic nut includes the
One annular oil groove, the first oil inlet, the first petroleum pipeline and the first lock-screw, the first annular oil groove are interior equipped with piston, institute
It states and rubber seal ring is equipped between first annular oil groove and piston, the rubber seal ring is resisted against the medial surface of piston, described
Air groove is provided on the medial surface of piston, be additionally provided on the piston first annular oil groove is connected with piston seal it is first close
Seal, first oil inlet are connected by the first petroleum pipeline with first annular oil groove, and first oil inlet is equipped with the
One countersunk head plug screw, first lock-screw are connected by the first petroleum pipeline with the first oil inlet, and the partial pressure nut includes
Second helical oil groove, the second oil inlet, the second petroleum pipeline and the second lock-screw, second oil inlet pass through the second oil transportation
Pipe is connected with the second helical oil groove, and second oil inlet is equipped with the second countersunk head plug screw, and second lock-screw leads to
The second petroleum pipeline is crossed with the second oil inlet to be connected.
Preferably, the hydraulic pressure screw rod includes hydraulic pressure screw rod first segment and hydraulic pressure screw rod second segment, the hydraulic pressure screw rod
First segment and hydraulic pressure screw rod second segment are an integral structure, and the cross sectional shape of the hydraulic pressure screw rod second segment is pyramidal structure, institute
It states hydraulic nut and partial pressure nut is adapted respectively with hydraulic pressure screw rod first segment and hydraulic pressure screw rod second segment, the hydraulic nut
Inner wall is equipped with the first internal thread, and the inner wall of the partial pressure nut is equipped with the second internal thread, spiral shell in first internal thread and second
Line is bullet screw thread, and the reach L of first internal thread and the second internal thread is all higher than being equal to 25 times of screw pitch and be less than
Equal to 50 times screw pitch.
Preferably, the central axis of the hydraulic pressure screw rod, hydraulic nut and partial pressure nut overlaps.
Preferably, the slot cross-section shape of the air groove of the piston medial surface is equilateral triangle structure, the air groove
Groove width for 1mm~2mm, the air groove is uniformly distributed on piston medial surface.
The beneficial effects of the utility model：The utility model is simple in structure, and split structure can be when large scale be processed
Difficulty of processing is reduced, ensures machining accuracy, detachable structure is easy to maintenance, and good airproof performance is easy to installation and removal, extends liquid
Press the service life of nut；By setting arc line shaped bullet screw thread in the inner wall of hydraulic nut and partial pressure nut, screw thread is increased
Surface area, improve the forced area and load-carrying ability of screw thread, reach L belongs to long screwing length, from reach
Increase thread surface product, further improve the load-carrying ability of screw thread；By opening up air groove on the medial surface of piston, dismounting
Enter air after high pressure oil release between the inner plane and rubber seal ring of piston in air groove in the process, rubber seal ring easily with
Piston medial surface be detached from, rubber seal ring is avoided to squeeze into the gap of piston and plunger shaft, so as to effectively avoid seizure of piston and
The phenomenon that hydraulic nut is scrapped；Release easily can be carried out to high pressure oil by the first lock-screw and the second lock-screw,
Convenient disassembly.
The feature and advantage of the utility model will be described in detail by embodiment combination attached drawing.
【Description of the drawings】
Fig. 1 is a kind of structure diagram of split type ship hydraulic nut of the utility model.
In figure：1- hydraulic pressure screw rod, 2- hydraulic nuts, 3- partial pressures nut, 11- hydraulic pressure screw rods first segment, 12- hydraulic pressure screw rod the
Two sections, the first annular oil grooves of 21-, the first oil inlets of 22-, the first petroleum pipelines of 23-, the first lock-screws of 24-, spiral shell in 25- first
Line, 211- pistons, 212- rubber seal rings, 2111- air grooves, the first sealing rings of 2112-, the first countersunk heads of 221- plug screw, 31-
Two helical oil grooves, the second oil inlets of 32-, the second petroleum pipelines of 33-, the second lock-screws of 34-, the second internal threads of 35-, 321-
Two countersunk head plug screws.
【Specific embodiment】
Refering to Fig. 1, a kind of split type ship hydraulic nut of the utility model including hydraulic pressure screw rod 1, hydraulic nut 2 and divides
Nut 3 is pressed, the hydraulic nut 2 and partial pressure nut 3 cooperate with hydraulic pressure screw rod 1, and the hydraulic nut 2 includes first annular
Oil groove 21, the first oil inlet 22, the first petroleum pipeline 23 and the first lock-screw 24, the first annular oil groove 21 is interior to be equipped with piston
211, rubber seal ring 212 is equipped between the first annular oil groove 21 and piston 211, the rubber seal ring 212 is resisted against
The medial surface of piston 211 is provided with air groove 2111 on the medial surface of the piston 211, is additionally provided on the piston 211 by first
The first sealing ring 2112 that annular oil groove 21 and piston 211 are tightly connected, first oil inlet 22 pass through the first petroleum pipeline 23
It is connected with first annular oil groove 21, first oil inlet 22 is equipped with the first countersunk head plug screw 221, first lock-screw
24 are connected by the first petroleum pipeline 23 with the first oil inlet 22, and the partial pressure nut 3 includes the second helical oil groove 31, second
Oil inlet 32, the second petroleum pipeline 33 and the second lock-screw 34, second oil inlet 32 pass through the second petroleum pipeline 33 and second
Helical oil groove 31 is connected, and second oil inlet 32 is equipped with the second countersunk head plug screw 321, and second lock-screw 34 is logical
The second petroleum pipeline 33 is crossed with the second oil inlet 32 to be connected.The hydraulic pressure screw rod 1 includes hydraulic pressure screw rod first segment 11 and hydraulic pressure spiral shell
Bar second segment 12, the hydraulic pressure screw rod first segment 11 and hydraulic pressure screw rod second segment 12 are an integral structure, the hydraulic pressure screw rod
Two section 12 of cross sectional shape be pyramidal structure, the hydraulic nut 2 and divide nut 3 respectively with hydraulic pressure screw rod first segment 11 and liquid
Pressure screw rod second segment 12 is adapted, and the inner wall of the hydraulic nut 2 is equipped with the first internal thread 25, the inner wall of the partial pressure nut 3
Equipped with the second internal thread 35,25 and second internal thread 35 of the first internal thread is bullet screw thread, first internal thread 25
It is all higher than being equal to 25 times of screw pitch and less than or equal to 50 times of screw pitch with the reach L of the second internal thread 35.The hydraulic pressure screw rod 1,
The central axis of hydraulic nut 2 and partial pressure nut 3 overlaps.The slot cross-section of the air groove 2111 of 211 medial surface of piston
Shape is equilateral triangle structure, and the groove width of the air groove 2111 is 1mm~2mm, and the air groove 2111 is in 211 inside of piston
It is uniformly distributed on face.
Utility model works process：
Hydraulic pressure screw rod 1 during the work time, is first passed through partial pressure spiral shell by a kind of split type ship hydraulic nut of the utility model
The conical bolt hole of mother 3, then by hydraulic nut 2 spinning to hydraulic pressure screw rod 1, and make the piston 211 of hydraulic nut 2 and partial pressure nut
3 are in contact, and lock the first lock-screw 24 and the second lock-screw 34, start oil pump and pass through the first oil inlet 22 and second respectively
Oil inlet 32 is pumped into high pressure oil to first annular 21 and second helical oil groove 31 of oil groove, outwardly protrudes piston 211, due to liquid
Pressure nut 2 is fixed on by the first internal thread 25 on hydraulic pressure screw rod 1, and 211 convex of piston, which is sent as an envoy to, divides nut 3 and pyramidal structure
Hydraulic pressure screw rod second segment 12 constantly squeezes, while divides 3 inner surface of nut and inwardly expanded under the action of high pressure oil, and two strands powerful
Hydraulic pressure hydraulic pressure screw rod 1 is constantly squeezed into hydraulic nut ontology, then unscrew the first lock-screw 24 and the second lock
Tight screw 34, releases stress, and partial pressure nut 3 shrinks and is fixed on hydraulic pressure screw rod 1, so as to make hydraulic pressure screw rod 1 and hydraulic nut
Ontology is securely attached to together.
Above-described embodiment is the explanation to the utility model, is not the restriction to the utility model, any new to this practicality
Scheme after type simple transformation belongs to the scope of protection of the utility model.
Claims (4)
1. a kind of split type ship hydraulic nut, it is characterised in that：Including hydraulic pressure screw rod (1), hydraulic nut (2) and partial pressure nut
(3), the hydraulic nut (2) and partial pressure nut (3) cooperate with hydraulic pressure screw rod (1), and the hydraulic nut (2) is including first
Annular oil groove (21), the first oil inlet (22), the first petroleum pipeline (23) and the first lock-screw (24), the first annular oil groove
(21) equipped with piston (211) in, rubber seal ring (212), institute are equipped between the first annular oil groove (21) and piston (211)
The medial surface that rubber seal ring (212) is resisted against piston (211) is stated, air groove is provided on the medial surface of the piston (211)
(2111), the first sealing ring by first annular oil groove (21) and piston (211) sealed connection is additionally provided on the piston (211)
(2112), first oil inlet (22) is connected by the first petroleum pipeline (23) with first annular oil groove (21), and described first
Oil inlet (22) is equipped with the first countersunk head plug screw (221), and first lock-screw (24) passes through the first petroleum pipeline (23) and the
One oil inlet (22) is connected, and the partial pressure nut (3) includes the second helical oil groove (31), the second oil inlet (32), second
Petroleum pipeline (33) and the second lock-screw (34), second oil inlet (32) pass through the second petroleum pipeline (33) and the second spiral shape
Oil groove (31) is connected, and second oil inlet (32) is equipped with the second countersunk head plug screw (321), second lock-screw (34)
It is connected by the second petroleum pipeline (33) with the second oil inlet (32).
2. a kind of split type ship hydraulic nut as described in claim 1, it is characterised in that：The hydraulic pressure screw rod (1) includes
Hydraulic pressure screw rod first segment (11) and hydraulic pressure screw rod second segment (12), the hydraulic pressure screw rod first segment (11) and hydraulic pressure screw rod second segment
(12) be an integral structure, the cross sectional shape of the hydraulic pressure screw rod second segment (12) is pyramidal structure, the hydraulic nut (2) and
Partial pressure nut (3) is adapted respectively with hydraulic pressure screw rod first segment (11) and hydraulic pressure screw rod second segment (12), the hydraulic nut (2)
Inner wall be equipped with the first internal thread (25), the inner wall of the partial pressure nut (3) is equipped with the second internal thread (35), spiral shell in described first
Line (25) and the second internal thread (35) are bullet screw thread, and the screw thread of first internal thread (25) and the second internal thread (35) is long
Degree L is all higher than being equal to 25 times of screw pitch and less than or equal to 50 times of screw pitch.
3. a kind of split type ship hydraulic nut as described in claim 1, it is characterised in that：The hydraulic pressure screw rod (1), hydraulic pressure
The central axis of nut (2) and partial pressure nut (3) overlaps.
4. a kind of split type ship hydraulic nut as described in claim 1, it is characterised in that：Piston (211) medial surface
Air groove (2111) slot cross-section shape for equilateral triangle structure, the groove width of the air groove (2111) is 1mm~2mm, institute
Air groove (2111) is stated to be uniformly distributed on piston (211) medial surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721444790.8U CN207514048U (en) | 2017-11-01 | 2017-11-01 | A kind of split type ship hydraulic nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721444790.8U CN207514048U (en) | 2017-11-01 | 2017-11-01 | A kind of split type ship hydraulic nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207514048U true CN207514048U (en) | 2018-06-19 |
Family
ID=62536688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721444790.8U Expired - Fee Related CN207514048U (en) | 2017-11-01 | 2017-11-01 | A kind of split type ship hydraulic nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207514048U (en) |
-
2017
- 2017-11-01 CN CN201721444790.8U patent/CN207514048U/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: 20180619 |