CN206723003U - Piston compressor crosshead - Google Patents
Piston compressor crosshead Download PDFInfo
- Publication number
- CN206723003U CN206723003U CN201720354377.6U CN201720354377U CN206723003U CN 206723003 U CN206723003 U CN 206723003U CN 201720354377 U CN201720354377 U CN 201720354377U CN 206723003 U CN206723003 U CN 206723003U
- Authority
- CN
- China
- Prior art keywords
- crosshead
- piston rod
- connector
- locking boss
- pin
- 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
Links
- 210000004907 gland Anatomy 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000003993 interaction Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
It the utility model is related to a kind of piston compressor crosshead, including crosshead body, stop nut and crosshead pin, the crosshead pin is fixed in the pin-and-hole of crosshead body by gland, the stop nut passes sequentially through connector and sleeve and is connected with crosshead body upper end, its lower end is provided with the first locking boss, the crosshead body upper end is provided with the second locking boss, the screwed hole for being used for installing piston rod is provided with its end face center, the screwed hole bottom is provided with adjust pad, and keyway is offered along its axial direction on its inwall.The utility model crosshead passes through nut, connector, sleeve makes piston rod end tightly withstand in the adjust pad in crosshead body, when crosshead is run up, crosshead directly acts on piston rod to the active force of piston rod by adjust pad, so as to avoid the interaction of stop nut screw thread and piston rod thread, its screw thread is only played connection function, rather than transmit the effect of power, so as to effectively avoid " the killing " of connection screw thread.
Description
Technical field
A kind of Compressor Technology field is the utility model is related to, more particularly to a kind of piston compressor crosshead.
Background technology
Traditional crosshead is mainly made up of parts such as inner nut, outer nut, crosshead body, crosshead pins, wherein inner nut,
Outer nut, which is bolted, to be fixed on crosshead body, and crosshead pin is fixed in crosshead body pin-and-hole by gland.Cross
Head is located in compressor guide, and bent axle drives crosshead to move up and down by connecting rod, and as shown in Figure 1, 2, crosshead passes through inside and outside
Nut is connected with piston rod, and band piston moves up and down in the cylinder, and then realizes the compression to gas.Crosshead by it is interior,
Outer nut is connected with piston rod, and because piston rod is only connected with outer nut in crosshead, crosshead is complete to the active force of piston rod
Portion in piston rod, when piston rod thread is by under the long-term alternation active force of interior outer nut, is held by the threaded function of interior outer nut
Be also easy to produce deformation, piston rod thread is snapped tight against with crosshead internal and external threads together with, be commonly called as " killing ", cause piston rod without
Method separates dismounting with crosshead.
Utility model content
It is of the present utility model to be directed to problems of the prior art and defect, there is provided one kind avoids the piston pressure of " killing "
Contracting machine crosshead.
To achieve the above object, technical scheme is used by the utility model：A kind of piston compressor crosshead, including
Crosshead body, stop nut and crosshead pin, the crosshead pin are fixed in the pin-and-hole of crosshead body by gland, described anti-
Loose nut passes sequentially through connector and sleeve and is connected with crosshead body upper end, and its lower end is provided with the first locking boss, the cross
Head body upper end is provided with the second locking boss, and the threaded mounting hole for being used for installing piston rod, the screw thread are provided with its end face center
Bottom hole portion is provided with adjust pad, and keyway is offered along its axial direction on its inwall.
In the above-mentioned technical solutions, for described sleeve set on the outside of connector, both are fixed on by screw assembly
On one locking boss and the second locking boss.
In the above-mentioned technical solutions, described connector is that semicircular connector body forms by two cross sections.
In the above-mentioned technical solutions, described connector inwall, which is provided with, is used for the first locking boss of clamping and the locking 2nd
The ring-type clamping groove of boss.
In the above-mentioned technical solutions, described stop nut is provided with the screwed hole for being used for connecting piston rod.
The beneficial effects of the utility model are：The utility model crosshead makes what is adjusted by nut, connector, sleeve
Piston rod end withstanding in the adjust pad in crosshead body tightly, and piston rod is threadedly coupled part with crosshead
Key, the thread looseness that can effectively prevent piston rod to be connected with crosshead, it is ensured that the piston rod adjusted and adjust pad it is relative
Position.When crosshead is run up, crosshead directly acts on piston rod to the active force of piston rod by adjust pad, from
And the interaction of stop nut screw thread and piston rod thread is avoided, its screw thread is only played connection function, rather than transmit power
Effect, so as to effectively avoid " the killing " of connection screw thread.When piston rod is run downwards, the gravity of piston rod and crosshead
The reaction force of counteracting compressed gas that can be most is acted on, makes the work that power is there's almost no between crosshead and piston rod
With making screw thread only play connection function, improve crosshead stressing conditions.In addition, the utility model global design is reasonable, structure letter
It is single, it can effectively avoid the situation of " killing " from occurring.
Brief description of the drawings
Fig. 1 is the structural representation of the crosshead of prior art ten；
Fig. 2 is prior art crosshead and the connection relationship diagram of compressor piston rod；
Fig. 3 is the structural representation of the utility model piston compressor crosshead；
Fig. 4 is the utility model piston compressor crosshead and the connection relationship diagram of compressor piston rod.
The meaning that label represents in figure as：In Fig. 1 and Fig. 2：1 is outer nut, and 2 be bolt, and 3 be inner nut, and 4 be crosshead
Body, 5 be crosshead pin, and 6 be cylinder, and 7 be piston, and 8 be piston rod, and 9 be guide, and 10 be connecting rod, and 11 be bent axle；
In Fig. 3 and Fig. 4：1 is stop nut, and 2 be sleeve, and 3 be keyway, and 4 be connector, and 5 be crosshead body, and 6 be cross
Head pin, 7 be adjust pad, and 8 be cylinder, and 9 be piston, and 10 be piston rod, and 11 be guide, and 12 be connecting rod, and 13 be bent axle.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further detail to the utility model：
Embodiment：Referring to Fig. 3 and 4, a kind of piston compressor crosshead, including crosshead body, stop nut and crosshead
Pin, the crosshead pin are fixed in the pin-and-hole of crosshead body by gland, and the stop nut passes sequentially through connector and set
Cylinder is connected with crosshead body upper end, and its lower end is provided with the first locking boss, is provided with the stop nut and is used to connect piston rod
Screwed hole, the crosshead body upper end are provided with the second locking boss, the screw thread for being used for installing piston rod are provided with its end face center
Mounting hole, the screwed hole bottom are provided with adjust pad, and keyway is offered along its axial direction on its inwall.
For described sleeve set on the outside of connector, both are fixed on the first and second locking boss by screw assembly
On.Described connector is that semicircular connector body forms by two cross sections.Described connector inwall, which is provided with, to be used
In the ring-type clamping groove of the boss of clamping first and second, i.e., first and second locking boss is each provided in ring-type clamping groove.
The utility model is not limited to above-mentioned embodiment, and those skilled in the art can also make a variety of changes accordingly
Change, but any change equivalent or similar with the utility model should all be covered in the range of the utility model claims.
Claims (5)
1. a kind of piston compressor crosshead, including crosshead body, stop nut and crosshead pin, the crosshead pin pass through pressure
Lid is fixed in the pin-and-hole of crosshead body, it is characterised in that：The stop nut passes sequentially through connector and sleeve and crosshead
Body upper end connects, and its lower end is provided with the first locking boss, and the crosshead body upper end is provided with the second locking boss, its end face center
Place, which is provided with, is used to installing the threaded mounting hole of piston rod, and the screwed hole bottom is provided with adjust pad, along its axial direction on its inwall
Offer keyway.
2. piston compressor crosshead according to claim 1, it is characterised in that：Described sleeve set is outside connector
Side, both are fixed on the first and second locking boss by screw assembly.
3. piston compressor crosshead according to claim 1 or 2, it is characterised in that：Described connector is by two horizontal strokes
Section forms for semicircular connector body.
4. piston compressor crosshead according to claim 3, it is characterised in that：Described connector inwall, which is provided with, to be used
In the first locking boss of clamping and the ring-type clamping groove of the second locking boss.
5. piston compressor crosshead according to claim 1, it is characterised in that：Described stop nut, which is provided with, to be used for
Connect the screwed hole of piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720354377.6U CN206723003U (en) | 2017-04-06 | 2017-04-06 | Piston compressor crosshead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720354377.6U CN206723003U (en) | 2017-04-06 | 2017-04-06 | Piston compressor crosshead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206723003U true CN206723003U (en) | 2017-12-08 |
Family
ID=60503315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720354377.6U Expired - Fee Related CN206723003U (en) | 2017-04-06 | 2017-04-06 | Piston compressor crosshead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206723003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825643A (en) * | 2018-07-04 | 2018-11-16 | 蚌埠艾普压缩机制造有限公司 | A kind of hydrogenation stations high pressure hydrogen compressor flange thread connection type crosshead |
-
2017
- 2017-04-06 CN CN201720354377.6U patent/CN206723003U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825643A (en) * | 2018-07-04 | 2018-11-16 | 蚌埠艾普压缩机制造有限公司 | A kind of hydrogenation stations high pressure hydrogen compressor flange thread connection type crosshead |
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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: 20171208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |