CN202719125U - Hollow piston rod connecting mechanism - Google Patents
Hollow piston rod connecting mechanism Download PDFInfo
- Publication number
- CN202719125U CN202719125U CN 201220235791 CN201220235791U CN202719125U CN 202719125 U CN202719125 U CN 202719125U CN 201220235791 CN201220235791 CN 201220235791 CN 201220235791 U CN201220235791 U CN 201220235791U CN 202719125 U CN202719125 U CN 202719125U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- locking nut
- hollow piston
- head
- piston
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a hollow piston rod connecting mechanism, which comprises a hollow piston head, a piston rod and a locking nut, wherein the tail end of the hollow piston head is provided with an assembly head; the periphery of the assembly head is in threaded connection with a connecting piece; after penetrating through the connecting piece, the end part of the piston rod is locked by a locking nut which is positioned in the assembly head; and the locking nut is pressed and positioned in the assembly head by the connecting piece. The piston rod is fixed in the assembly head on the end part of the hollow piston by using the connecting piece and the locking nut, so that the hollow piston rod connecting mechanism has a simple structure and is convenient to connect and convenient to disassemble and assemble; and since each structure is fixed in a coaxial mode, the coaxiality of the structure can be guaranteed, and the piston mechanism has high accuracy; and in addition, the hollow piston mechanism can also be protected from deforming easily in long-term use.
Description
Technical field
The utility model relates to a kind of piston mechanism, particularly relates to a kind of hollow piston rod bindiny mechanism.
Background technique
Piston mechanism can produce to-and-fro motion by extraneous mechanical force or gas, fluid pressure, take with other transformation of energy as needed mechanical energy, for machinery; Piston mechanism mainly by piston cylinder, sheathedly be matched with piston in the piston cylinder and relevant sealing, fixed structure forms, be applied in the piston mechanism of hot environment for some, expand with heat and contract with cold to realize piston movement with what utilize medium, yet because the piston tail end is positioned at piston cylinder, can touch higher temperature, just this part heat might be transmitted out, cause the impact of some inconvenience, be directed to this, just can adopt box type piston to carry out heat insulation, can also reduce simultaneously and make material and quality, reach a series of better implementation results; Yet, adopt in the situation of hollow-core construction piston, if still adopt welding or other usual ways to connect piston rod, then may be so that the piston distortion, also have simultaneously the good not suspicion of concentricity, therefore, how preferably box type piston to be connected with the piston rod of its transmission, to be one and to be necessary the technical problem that solves.
The model utility content
The technical problems to be solved in the utility model provides a kind of simple and reasonable, the hollow piston rod bindiny mechanism of good connecting effect.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of hollow piston rod bindiny mechanism, comprise box type piston head, piston rod and locking nut, described box type piston head end is provided with assembly head, this assembly head periphery link that has been threaded, described piston rod end is passed behind this link by the locking nut locking that is positioned at described assembly head, and wherein said link press-fits described locking nut and is positioned in the described assembly head.
Further, be provided with the pad that is nested with in described piston rod end between described locking nut and the link.
Further, described piston rod end periphery is provided with the indent circle of the described pad of a circle holding.
Further, described link outside thread is connected with the piston seal assembly.
The beneficial effects of the utility model: the utility model adopts link and locking nut to cooperate piston rod is fixed, in the assembly head of the end of box type piston, it is simple in structure, easy to connect, be convenient to dismounting, and because each structure is all fixed with coaxial manner, can guarantee the concentricity of structure, so that the piston mechanism precision is good, can guarantee that in addition the long-time use of box type piston mechanism is not yielding.
Description of drawings
In order to be illustrated more clearly in the technological scheme among the utility model embodiment, the accompanying drawing of required use was done simple declaration during the below will describe embodiment.Obviously, described accompanying drawing is a part of embodiment of the present utility model, rather than whole embodiment, and those skilled in the art can also be according to other design proposals and the accompanying drawing of these accompanying drawings acquisitions under the prerequisite of not paying creative work.
Fig. 1 is perspective view of the present utility model;
Fig. 2 is fractionation structural representation of the present utility model;
Fig. 3 is cross-sectional view of the present utility model.
Embodiment
Be clearly and completely described below with reference to embodiment and the accompanying drawing technique effect to design of the present utility model, concrete structure and generation, to understand fully the purpose of this utility model, feature and effect.Obviously; described embodiment is a part of embodiment of the present utility model, rather than whole embodiment, based on embodiment of the present utility model; other embodiments that those skilled in the art obtains under the prerequisite of not paying creative work all belong to the scope that the utility model is protected.
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of hollow piston rod provided by the utility model bindiny mechanism, comprise box type piston head 1, piston rod 2 and locking nut 3, wherein box type piston head 1 end is provided with assembly head 11, assembly head 11 is similarly hollow-core construction, at the assembly head 11 peripheries a connection piece 4 that has been threaded, piston rod 2 ends will be stretched in the assembly head 11 after will passing this link 4 in addition, and by locking nut 3 lockings that are positioned at equally assembly head 11, in this structure, the step that link 4 segmentum laterale settings can be press-fited, so that its apertura lateralis diameter is greater than piston rod 2 end diameter, but less than the diameter of locking nut 3, so just locking nut 3 is press-fited and be positioned in the assembly head 11, and then just fixed piston rod 2.In this external preferred version, be provided with the pad 5 that is nested with in piston rod 2 ends between locking nut 3 and the link 4, and for better location, can be provided with in piston rod 2 end peripheries the indent circle 21 of a circle holding pad 5, can prevent that by pad 5 locking nut 3 from getting loose.
In addition for the sealing in piston mounting arrangement, piston seal assembly 6 will be set, and it can be set to the tapped structure of inner ring, and corresponding link 4 peripheries also arrange outside thread, and be connected by internal and external screw thread, piston seal assembly 6 is assembled together.
Certainly, the invention is not limited to above-mentioned mode of execution, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of the utility model spirit, the modification that these are equal to or replacement all are included in the application's claim limited range.
Claims (4)
1. hollow piston rod bindiny mechanism, comprise box type piston head (1), piston rod (2) and locking nut (3), it is characterized in that: described box type piston head (1) end is provided with assembly head (11), this assembly head (11) periphery link (4) that has been threaded, described piston rod (2) end is passed behind this link (4) and is locked by the locking nut that is positioned at described assembly head (11) (3), and wherein said link (4) press-fits described locking nut (3) and is positioned in the described assembly head (11).
2. a kind of hollow piston rod according to claim 1 bindiny mechanism is characterized in that: be provided with the pad (5) that is nested with in described piston rod (2) end between described locking nut (3) and the link (4).
3. a kind of hollow piston rod according to claim 2 bindiny mechanism, it is characterized in that: described piston rod (2) end periphery is provided with the indent circle (21) of a circle described pad of holding (5).
4. a kind of hollow piston rod according to claim 1 bindiny mechanism, it is characterized in that: described link (4) outside thread is connected with piston seal assembly (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235791 CN202719125U (en) | 2012-05-18 | 2012-05-18 | Hollow piston rod connecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235791 CN202719125U (en) | 2012-05-18 | 2012-05-18 | Hollow piston rod connecting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202719125U true CN202719125U (en) | 2013-02-06 |
Family
ID=47620949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220235791 Expired - Fee Related CN202719125U (en) | 2012-05-18 | 2012-05-18 | Hollow piston rod connecting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202719125U (en) |
-
2012
- 2012-05-18 CN CN 201220235791 patent/CN202719125U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20210518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |