CN207080484U - A kind of hard alloy composite roll hydraulic nut - Google Patents
A kind of hard alloy composite roll hydraulic nut Download PDFInfo
- Publication number
- CN207080484U CN207080484U CN201721001472.4U CN201721001472U CN207080484U CN 207080484 U CN207080484 U CN 207080484U CN 201721001472 U CN201721001472 U CN 201721001472U CN 207080484 U CN207080484 U CN 207080484U
- Authority
- CN
- China
- Prior art keywords
- ring
- piston body
- nut
- gasket
- standing groove
- Prior art date
- 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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Links
- 239000000956 alloy Substances 0.000 title claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 13
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000004698 Polyethylene Substances 0.000 claims description 26
- -1 polyethylene Polymers 0.000 claims description 26
- 229920000573 polyethylene Polymers 0.000 claims description 26
- 210000002435 tendon Anatomy 0.000 claims description 10
- 239000010720 hydraulic oil Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of hard alloy composite roll hydraulic nut, including nut body, piston body and retaining ring, closure gasket groove is provided with one end perisporium of piston body, sealing device includes gasket ring and O-ring seal, gasket ring is arranged in closure gasket groove, gasket ring is circumferentially provided with standing groove on the perisporium away from piston body, and O-ring seal is arranged in standing groove, and the depth of standing groove cuts the 1/3~3/4 of footpath for O-ring seal.The utility model has the advantages that：By the way that hydraulic oil is squeezed into chamber; locked again by retaining ring and pretightning force is produced to nut body; and set gasket ring to be effectively protected O-ring seal in closure gasket groove is influenceed caused deformation by pretightning force less; smoothly hydraulic nut can be removed after pretightning force is removed, and sealing device may be reused.And to be O-ring seal cut the depth of standing groove the 1/3~3/4 of footpath, the too deep O-ring seal of standing groove can not play sealing effectiveness, and standing groove is too shallow to protect O-ring seal indeformable well.
Description
Technical field
It the utility model is related to a kind of hard alloy composite roll hydraulic nut.
Background technology
Hard alloy composite roll includes roll shaft, is cased with collars and spacer ring on roll shaft, is then locked using hydraulic nut, conventional
Hydraulic nut include nut body, piston body and retaining ring, O-ring seal is placed between nut body and piston body, using O-shaped close
Seal is sealed, but because nut body and piston body hydraulic pressure pwc clamp force are excessive, O-ring seal can be caused to deform, O-shaped sealing
After circle deformation nut body will be caused not remove.
Utility model content
The purpose of this utility model is to provide a kind of hard alloy composite roll hydraulic nut, can effectively solve the problem that nut
Body and piston body hydraulic pressure pwc clamp force are excessive, the problem of O-ring seal being caused to deform.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions：A kind of hard alloy
Composite roll hydraulic nut, including nut body, piston body and retaining ring, the nut body is provided with axial internal thread hole, described
The chamber coaxial with internal thread hole is additionally provided with nut body, the oil nozzle communicated with chamber is also provided with nut, the piston body
One end coordinates with chamber, sealing device is provided between one end of piston body and chamber, the other end of piston body is provided with external screw thread, institute
Retaining ring is stated to be threadedly coupled with the other end of piston body；
Closure gasket groove is provided with one end perisporium of the piston body, the sealing device includes tetrafluoro polyethylene gasket ring and O
Type sealing ring, the tetrafluoro polyethylene gasket ring are arranged in closure gasket groove, the week of the tetrafluoro polyethylene gasket ring away from piston body
Standing groove is circumferentially provided with wall, the O-ring seal is arranged in standing groove, and the depth of the standing groove is O-ring seal
Cut the 1/3~3/4 of footpath.
Preferably, the length of the section of the tetrafluoro polyethylene gasket ring radially is more than the depth of closure gasket groove；Exceed
Length will ensure the normal assembling of nut body and piston body, and the length exceeded can reduce the preload pressure that O-ring seal is received as far as possible,
Reduce the deflection of O-ring seal.
Preferably, at least two circle convex tendons vertically, tetrafluoro are equipped with two end faces of the tetrafluoro polyethylene gasket ring
Convex tendon diameter on two end faces of polyethylene gasket ring is unequal；By convex tendon between tetrafluoro polyethylene gasket ring and closure gasket groove
Sealing is formed, and the diameter of convex tendon is unequal, can reduce difficulty during installation, and closure gasket groove is installed to beneficial to convex tendon deformation
It is interior.
Compared with prior art, the utility model has the advantages that：By the way that hydraulic oil is squeezed into chamber, then locked by retaining ring
Pretightning force is produced to nut body, and it is few to set tetrafluoro polyethylene gasket ring to be effectively protected O-ring seal in closure gasket groove
Caused deformation is influenceed by pretightning force, smoothly hydraulic nut can be removed after pretightning force is removed, and sealing device can
To reuse.And to be O-ring seal cut the 1/3~3/4 of footpath to the depth of standing groove, the too deep O-ring seal of standing groove can not
Sealing effectiveness is played, standing groove is too shallow to protect O-ring seal indeformable well.
Brief description of the drawings
Fig. 1 is a kind of sectional view of hard alloy composite roll hydraulic nut of the utility model；
Fig. 2 is sealing device and the sectional view after piston body cooperation in the utility model；
Fig. 3 is the sectional view of tetrafluoro polyethylene gasket ring in the utility model；
Fig. 4 is the sectional view of piston body in the utility model.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The instruction such as " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer "
Orientation or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of the description present invention and simplification is retouched
State, rather than instruction or imply signified device or element there must be specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate each other；Can be joined directly together, can also be indirectly connected by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, is limited unless otherwise clear and definite.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
It is a kind of embodiment of hard alloy composite roll hydraulic nut of the utility model refering to Fig. 1 to Fig. 4, a kind of hard
Alloy composite roll hydraulic nut, including nut body 1, piston body 2 and retaining ring 3, the nut body 1 are provided with axial internal thread
Hole 4, the chamber 5 coaxial with internal thread hole 4 is additionally provided with the nut body 1, the oil nozzle 6 communicated with chamber 5 is also provided with nut,
One end of the piston body 2 coordinates with chamber 5, and sealing device 7 is provided between one end of piston body 2 and chamber 5, piston body 2
The other end is provided with external screw thread, and the retaining ring 3 is threadedly coupled with the other end of piston body 2；
As shown in Figure 2, Figure 4 shows, closure gasket groove 8 is provided with one end perisporium of the piston body 2, the sealing device includes four
Fluorine polyethylene gasket ring 9 and O-ring seal 10, the tetrafluoro polyethylene gasket ring 9 are arranged in closure gasket groove 8, tetrafluoro polyethylene pads
The length L of the section of ring 9 radially1More than the depth L of closure gasket groove 82, the cross-sectional length of specific tetrafluoro polyethylene gasket ring 9 will not
Big too many, loading onto tetrafluoro polyethylene gasket ring 9 in piston body 2 and be inserted into chamber 5 makes guarantee tetrafluoro polyethylene gasket ring 9 and chamber 5
Inwall is interference fitted, and standing groove 12, institute are circumferentially provided with the perisporium of the tetrafluoro polyethylene gasket ring 9 away from piston body 2
State O-ring seal 10 to be arranged in standing groove 12, the depth L of the standing groove 123Footpath L is cut for O-ring seal 1041/3~3/
4, the specific depth of standing groove 12 is that O-ring seal 10 cuts the 1/3 of footpath either 1/2 or 3/4.
As shown in figure 3, further for sealing is improved, it is equipped with two end faces of the tetrafluoro polyethylene gasket ring 9
Two circle convex tendons 11 vertically, the diameter of convex tendon 11 on 9 two end faces of tetrafluoro polyethylene gasket ring is unequal, passes through the shape of convex tendon 11
Into sealing.
In the present embodiment, tetrafluoro polyethylene gasket ring 9 has two, and one is arranged on the lateral wall of the one end of piston body 2, puts
Put groove 12 to be opened on outer circle wall, also one is arranged on the madial wall of the one end of piston body 2, and standing groove 12 is opened in inner peripheral wall
On.Tetrafluoro polyethylene gasket ring 9 is first put into closure gasket groove 8, sealing ring is then put into standing groove 12, then piston body 2
In the chamber 5 of one end insertion nut body 1, the other end of piston body 2 screws on retaining ring 3.Make during use according to normal fluid pressure nut
Operated with mode.
Specific embodiment of the utility model is the foregoing is only, but the technical characteristics of the utility model is not limited to
This, any those skilled in the art in field of the present utility model, all cover in this practicality newly by the change or modification made
Among the scope of the claims of type.
Claims (3)
- A kind of 1. hard alloy composite roll hydraulic nut, it is characterised in that：Including nut body (1), piston body (2) and retaining ring (3), the nut body (1) is provided with axial internal thread hole (4), is additionally provided with the nut body (1) coaxial with internal thread hole (4) Chamber (5), be also provided with the oil nozzle (6) communicated with chamber (5) on nut, one end and the chamber (5) of the piston body (2) are matched somebody with somebody Close, sealing device (7) is provided between one end of piston body (2) and chamber (5), the other end of piston body (2) is provided with external screw thread, institute The other end that retaining ring (3) is stated with piston body (2) is threadedly coupled；Closure gasket groove (8) is provided with one end perisporium of the piston body (2), the sealing device includes tetrafluoro polyethylene gasket ring (9) it is arranged on O-ring seal (10), the tetrafluoro polyethylene gasket ring (9) in closure gasket groove (8), the tetrafluoro polyethylene pads Ring (9) is circumferentially provided with standing groove (12) on the perisporium away from piston body (2), and the O-ring seal (10) is arranged on standing groove (12) in, the depth of the standing groove (12) cuts the 1/3~3/4 of footpath for O-ring seal (10).
- A kind of 2. hard alloy composite roll hydraulic nut as claimed in claim 1, it is characterised in that：The tetrafluoro polyethylene The length of the section of gasket ring (9) radially is more than the depth of closure gasket groove (8).
- A kind of 3. hard alloy composite roll hydraulic nut as claimed in claim 1, it is characterised in that：The tetrafluoro polyethylene At least two circle convex tendons (11) vertically are equipped with two end faces of gasket ring (9), on (9) two end faces of tetrafluoro polyethylene gasket ring Convex tendon (11) diameter it is unequal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721001472.4U CN207080484U (en) | 2017-08-10 | 2017-08-10 | A kind of hard alloy composite roll hydraulic nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721001472.4U CN207080484U (en) | 2017-08-10 | 2017-08-10 | A kind of hard alloy composite roll hydraulic nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207080484U true CN207080484U (en) | 2018-03-09 |
Family
ID=61420280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721001472.4U Active CN207080484U (en) | 2017-08-10 | 2017-08-10 | A kind of hard alloy composite roll hydraulic nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207080484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401548A (en) * | 2017-08-10 | 2017-11-28 | 浙江恒成硬质合金有限公司 | A kind of hard alloy composite roll hydraulic nut |
-
2017
- 2017-08-10 CN CN201721001472.4U patent/CN207080484U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401548A (en) * | 2017-08-10 | 2017-11-28 | 浙江恒成硬质合金有限公司 | A kind of hard alloy composite roll hydraulic nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Hengtungsten New Materials Co.,Ltd. Assignor: ZHEJIANG HENGCHENG CEMENTED CARBIDE Co.,Ltd. Contract record no.: X2024330000052 Denomination of utility model: A hydraulic nut for hard alloy composite rollers Granted publication date: 20180309 License type: Common License Record date: 20240510 |