CN202125510U - Piston rod and cross-shaped slide block assembly - Google Patents
Piston rod and cross-shaped slide block assembly Download PDFInfo
- Publication number
- CN202125510U CN202125510U CN2011202026258U CN201120202625U CN202125510U CN 202125510 U CN202125510 U CN 202125510U CN 2011202026258 U CN2011202026258 U CN 2011202026258U CN 201120202625 U CN201120202625 U CN 201120202625U CN 202125510 U CN202125510 U CN 202125510U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- crosshead shoe
- slide block
- cross
- oil
- 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 - Lifetime
Links
Images
Landscapes
- Compressor (AREA)
Abstract
The utility model discloses a piston rod and cross-shaped slide block assembly, which comprises a cross-shaped slide block and a piston rod. The lower end of the piston rod is in threaded connection with the cross-shaped slide block, a sealing seat is further arranged on the piston rod, slide rod sealing is formed between the piston rod and the sealing seat, and the cross-shaped slide block comprises a slide block body and an inner cavity. The piston rod and cross-shaped slide block assembly is characterized in that one side of the upper end of the cross-shaped slide block facing the sealing seat is provided with an oil collecting tank for collecting machine oil. The bottom of the oil collecting tank is further provided with an oil leading hole communicated with the top of the inner cavity of the cross-shaped slide block, and the oil leading hole is used for leading the machine oil collected by the oil collecting tank into a crosshead pin of a lubrication connecting rod. The oil collecting tank is designed on the cross-shaped slide block, and the oil leading hole communicated with the inner cavity of the cross-shaped slide block is designed on the oil collecting tank, thereby ensuring full lubrication between the cross-shaped slide block and the end of the connecting rod and improving reliability of running.
Description
Technical field
The utility model relates to application on piston type reciprocating engine or the compressor, relates in particular to a kind of piston rod and crosshead shoe assembly.
Background technique
Piston rod and crosshead shoe are one of critical components of piston type reciprocating engine or compressor, and quality that it is lubricated and reliability of operation are very big to the complete machine influence.There is oil duct at general piston rod and crosshead shoe place away from the master; Poor lubrication; Mostly traditional piston rod and crosshead shoe structural design are the splash lubrication crosshead shoe, make the crosshead shoe can not sufficient lubrication, have increased the friction wasted work of crosshead shoe joint; Kill easily, fatal fault such as dry friction, he has shortened life-span of component.In addition, traditional piston rod and crosshead shoe linkage structure are complicated, cause the size of crosshead shoe bigger, are unfavorable for the applied environment of compact type motor or compressor, and consumptive material, and cost of production is high.
Summary of the invention
The utility model technical problem to be solved provides a kind of piston rod and crosshead shoe assembly; On crosshead shoe, be designed with oil trap, oil trap is designed with the oilhole that draws that is communicated with the crosshead shoe inner chamber, and it has compact structure, is easy to arrange and installs, be connected reliably; The crosshead shoe place is fully lubricated; The friction wasted work is low, and efficient is high, the characteristics of good reliability.
The utility model solves the technological scheme that its technical problem adopted:
A kind of piston rod and crosshead shoe assembly; Comprise crosshead shoe, piston rod; Piston-rod lower end is threaded with crosshead shoe, also is provided with a sealing seat on the piston rod, forms the sliding bar sealing between piston rod and the sealing seat; Said crosshead shoe comprises slide body and inner chamber, is provided with the oil trap that is used to collect machine oil in said crosshead shoe upper end towards a side of said sealing seat; The bottom of oil trap also is provided with the oilhole that draws that is communicated with the interior top of chamber of crosshead shoe, and the machine oil that is used for that oil trap is collected is introduced lubricated connecting rod crosshead pin.
Above-mentioned piston rod and crosshead shoe assembly, in said sealing seat lower end, just oil trap directly over be provided with oil dripping hole.
Above-mentioned piston rod and crosshead shoe assembly, described oil trap is axial arranged along the crosshead pin-and-hole of crosshead shoe, and two ends respectively are furnished with one or more above slide body.
Above-mentioned piston rod and crosshead shoe assembly, said piston rod is threaded with said crosshead shoe; Place, positioning and locking hole at piston rod end and said slide body also is provided with the locking back-up ring.
The end that above-mentioned piston rod and crosshead shoe assembly, said piston rod stretch in the said crosshead shoe has a loading and unloading capacity hole.
With respect to traditional piston rod and crosshead shoe; The utility model is designed with oil trap on crosshead shoe; The upper end is provided with oil dripping hole on sealing seat, the oil that scrapes from piston rod in the piston rod to-and-fro motion is in time drained into the oil trap, and oil trap is designed with the oilhole that draws that is communicated with the crosshead shoe inner chamber; Guarantee sufficient lubrication between crosshead shoe and interlinking lever end, improved lubricated reliability.In addition; On crosshead shoe, be designed with the internal thread, location and the locking mechanism that join with piston rod; Be connected the end at piston rod with crosshead shoe; Designed the handling hole of piston rod, designed locking mechanism, thereby guaranteed the not only compactness but also reliable that is connected of piston rod and crosshead shoe in the piston rod end; The handling hole of piston rod designs in the outside of cylinder, thereby has reduced the clearance volume in the cylinder.
Description of drawings
Through the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the utility model will become apparent and understand easily.
Fig. 1 is the sectional view of piston rod and crosshead shoe assembly;
Fig. 2 is the sectional view of crosshead shoe in piston rod and the crosshead shoe assembly;
Fig. 3 is the sectional view of piston rod end.
The reference numeral explanation:
The 1-crosshead shoe, the 101-slide body, 102 inner chambers, 2-locks back-up ring,
The 3-piston rod, the 4-sealing seat, the 5-oil dripping hole, the 6-oil trap, 7-loading and unloading capacity hole,
The 8-connecting thread, 9-draws oilhole, 10-positioning and locking hole.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explain.
See also Fig. 1, Fig. 1 is the sectional view of piston rod and crosshead shoe assembly.A kind of piston rod and crosshead shoe assembly; Comprise crosshead shoe 1, the piston rod 3 that is connected with crosshead shoe 1, the sealing seat 4 that is sheathed on piston rod 3; Crosshead shoe 1 comprises slide body 101 and inner chamber 102; Be provided with at least one oil dripping hole 5 between sealing seat 4 and the piston rod 3, crosshead shoe 1 is provided with the oil trap 6 that is used to collect the oil droplet that oil dripping hole 5 leaks down towards a side of sealing seat 4, and oil trap 6 draws oilhole 9 through at least one and is communicated with the inner chamber 102 of crosshead shoe 1.Piston rod and crosshead shoe assembly are characterized in shown in Figure 1: the sealing seat of connecting rod is designed with oil dripping hole, and slider designs has oil trap and the combination of drawing oilhole.Generally; Oil trap 6 is axial arranged along the crosshead pin-and-hole of crosshead shoe 1, and two ends respectively are furnished with one or morely above slide body 101, can certainly be designed to week of annular; Through drawing the top of oilhole 9 guiding crosshead pins, guarantee lubricated effect again.
See also Fig. 2 and Fig. 1, Fig. 2 is the sectional view of crosshead shoe in piston rod and the crosshead shoe assembly.Slide body 101 is provided with a positioning and locking hole 10 towards a side of piston rod 3, and this positioning and locking hole 10 is used to the end that card is established piston rod 3.Piston rod 3 comprises the end of stretching in the crosshead shoe 1.Be provided with locking back-up ring 2 between piston rod volume end and the positioning and locking hole 10.Piston is connected through connecting thread 8 with said slide body 101.The characteristics of crosshead shoe shown in Figure 2 are: the both sides at the slide block connecting thread are designed with oil trap, have designed the oilhole that draws that is communicated with in the oil trap; The end of slide block connecting thread is designed with the location and the locking hole of piston rod, and this boring ratio connecting thread is littler; Crosshead shoe connecting thread external frame has designed the construct for handling of crosshead shoe.
See also Fig. 3, Fig. 3 is the sectional view of piston rod end.The piston rod end has a loading and unloading capacity hole 7.The characteristics of piston rod end shown in Figure 3 are: the piston rod end is designed with the endoporus of loading and unloading; And designed the positioning and locking back-up ring.
Being threaded through behind loading and unloading capacity hole, piston rod end and the outer construct for handling pretension of crosshead shoe screw thread between piston rod and the crosshead shoe loaded onto locking back-up ring or check pin in the piston rod end.Through the certain pretightening force that applies, both can be locking, can offset a part of to-and-fro motion process screw thread alternating stress again, thereby reduce the alternating stress of threaded connection place, improved the screw thread life-span; Loading and unloading capacity hole, piston rod end design in piston rod locking boss, compact structure and do not reduce the piston rod intensity of threaded connection place.
Through the oil trap that on crosshead shoe, is provided with; Collect the lubricant oil that rod seal seat or cylinder cap oil dripping hole flow out; Oilhole through slide block makes lubricant oil can successfully arrive the crosshead shoe place again; Guarantee the sufficient lubrication of crosshead shoe joint, reduced the friction wasted work at crosshead shoe place, prolonged the life-span of crosshead shoe and crosshead shoe.
The utility model structure Design is particularly useful for vertical piston type reciprocating compressor or the motor with crosshead shoe, and the utility model has obtained good checking on the vertical piston type reciprocating compressor of middle pressure, intermediate flow.
It should be noted that; Above content is the further explain that combines concrete mode of execution that the utility model is done; The embodiment that can not assert the utility model only limits to this; Under the above-mentioned guidance of the utility model, those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description, and these improve or distortion drops in the protection domain of the utility model.
Claims (6)
1. piston rod and crosshead shoe assembly; Comprise crosshead shoe, piston rod; Piston-rod lower end is threaded with crosshead shoe, also is provided with a sealing seat on the piston rod, forms the sliding bar sealing between piston rod and the sealing seat; Said crosshead shoe comprises slide body and inner chamber, it is characterized in that: be provided with the oil trap that is used to collect machine oil in said crosshead shoe upper end towards a side of said sealing seat; The bottom of oil trap also is provided with the oilhole that draws that is communicated with the interior top of chamber of crosshead shoe, and the machine oil that is used for that oil trap is collected is introduced lubricated connecting rod crosshead pin.
2. piston rod according to claim 1 and crosshead shoe assembly is characterized in that: in said sealing seat lower end, just oil trap directly over be provided with oil dripping hole.
3. piston rod according to claim 1 and 2 and crosshead shoe assembly is characterized in that: described oil trap is axial arranged along the crosshead pin-and-hole of crosshead shoe, and two ends respectively are furnished with one or more above slide body.
4. piston rod according to claim 1 and 2 and crosshead shoe assembly is characterized in that: said piston rod is threaded with said crosshead shoe; Place, positioning and locking hole at piston rod end and said slide body also is provided with the locking back-up ring.
5. piston rod according to claim 3 and crosshead shoe assembly is characterized in that: said piston rod is threaded with said crosshead shoe; Place, positioning and locking hole at piston rod end and said slide body also is provided with the locking back-up ring.
6. piston rod according to claim 5 and crosshead shoe assembly is characterized in that: the end that said piston rod stretches in the said crosshead shoe has a loading and unloading capacity hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202026258U CN202125510U (en) | 2011-06-16 | 2011-06-16 | Piston rod and cross-shaped slide block assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202026258U CN202125510U (en) | 2011-06-16 | 2011-06-16 | Piston rod and cross-shaped slide block assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202125510U true CN202125510U (en) | 2012-01-25 |
Family
ID=45488578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202026258U Expired - Lifetime CN202125510U (en) | 2011-06-16 | 2011-06-16 | Piston rod and cross-shaped slide block assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202125510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050859A (en) * | 2016-08-18 | 2016-10-26 | 开封空分集团有限公司 | Novel anti-looseness structure for large-diameter piston rod |
-
2011
- 2011-06-16 CN CN2011202026258U patent/CN202125510U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050859A (en) * | 2016-08-18 | 2016-10-26 | 开封空分集团有限公司 | Novel anti-looseness structure for large-diameter piston rod |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102182904B (en) | Thick grease secondary lubricating pump device | |
| CN104612958A (en) | A pump | |
| CN102959227A (en) | Pump, in particular a high-pressure fuel pump | |
| CN101806297B (en) | Self lubricating pump | |
| CN201228620Y (en) | Double cylinder reciprocating type piston compressor | |
| CN104541057A (en) | Reciprocating compressor, pressure packing, and method | |
| CN202125510U (en) | Piston rod and cross-shaped slide block assembly | |
| US9951733B2 (en) | Plug-in pump | |
| CN202690374U (en) | Installation structure of diaphragm compressor compensation oil pump | |
| CN201495378U (en) | Driver for guide bar shogging | |
| CN103133842A (en) | Oil-injection mechanism for paver lubricating system | |
| CN105386954A (en) | High-pressure liquid nitrogen pump | |
| CN102822523A (en) | Low oil consumption piston type air compressor with internal-cycle piping device | |
| CN201866134U (en) | Pressure-regulating overflow total pump for clutch booster | |
| CN102913417A (en) | Novel oilless vertical vacuum pump | |
| CN105422346A (en) | Plunger and barrel assembly for high-flow high-rotation speed rotor type high pressure common rail variable pump | |
| CN103486423B (en) | A kind of universal-joint spindle self-lubricating device | |
| CN102953954A (en) | Electric oil pump | |
| CN201461951U (en) | Sealing and oil leakage proofing structure of follow-up lever of cigarette packaging device | |
| CN202971784U (en) | Screw rod driving mechanism for microscale plunger pump | |
| CN201176920Y (en) | Self-help type lubricated high-pressure plunger pump | |
| CN208295126U (en) | Oil-sealing arrangement and engine | |
| CN207906191U (en) | A kind of rapid hydraulic oil cylinder structure | |
| CN207178143U (en) | It is applicable the vertical compressor of high temperature gas medium | |
| CN104534254A (en) | Novel ultrahigh pressure electric grease filling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120125 |
|
| CX01 | Expiry of patent term |