CN212265740U - Cold assembly fixture for crosshead pin of diaphragm compressor - Google Patents
Cold assembly fixture for crosshead pin of diaphragm compressor Download PDFInfo
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- CN212265740U CN212265740U CN202020850722.7U CN202020850722U CN212265740U CN 212265740 U CN212265740 U CN 212265740U CN 202020850722 U CN202020850722 U CN 202020850722U CN 212265740 U CN212265740 U CN 212265740U
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- connecting rod
- cross head
- pin
- backing plate
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Abstract
The utility model relates to a diaphragm compressor's cross head round pin cold packing assembly fixture installs fixed dabber and fixed backing plate respectively on the frock platform, fixed dabber is last have with connecting rod part major part matched with mounting, the pinhole junction that upper bolster pintle movable mounting link up mutually at cross head and connecting rod part microcephaly, the cross head is placed on fixed backing plate, interference fit when cross head round pin and connecting rod part microcephaly normal atmospheric temperature, be clearance fit after the cooling, place the lower pin axle on the frock platform of upper bolster axle below, there is the opening on the fixed backing plate, the opening can hold the lower pin axle withdraw from and the lower pin axle falls extremely on the frock platform. This cold dress assembly fixture simple structure, reliable, convenient to use can realize the quick cold dress of cross head round pin, has effectively overcome cross head round pin current assembly technique and has leaded to installing fitting surface fish tail, and assembly fit precision error is big, and the low or special fit clearance of assembly efficiency can't realize weak points such as installation to improve assembly efficiency, improved the life of spare part.
Description
Technical Field
The utility model belongs to cold assembly fixture design, concretely relates to diaphragm compressor's crosshead pin cold assembly fixture.
Background
The diaphragm compressor is a positive displacement compressor of a special structure, has the characteristics of large compression ratio, good sealing performance and no pollution of compressed gas by lubricating oil and other solid impurities, and generally mainly comprises a driving mechanism, a cylinder part, a lubricating oil system, a gas pipeline part, a crankcase part and the like. The crosshead part in the driving mechanism is an important part for connecting the piston and the connecting rod and transmitting force to the piston, the working state of the crosshead part determines the working state of the piston, so that the reliability of the overall operation of the compressor is influenced, and the service life of the crosshead part is determined by the service life of a crosshead pin and a bearing related to the crosshead pin in the crosshead part.
Under the general condition, can adopt conventional assembly methods between cross head pin and the bearing, this kind of assembly methods leads to the installation fitting surface fish tail easily, and assembly fitting precision error is big, and assembly efficiency is low, great part is difficult for the installation, special fit clearance can't realize the installation etc. weak point.
Disclosure of Invention
The utility model discloses lead to installation fitting surface fish tail to conventional assembly mode easily, assembly cooperation precision error is big, and assembly efficiency is low, great part is difficult for the installation, special fit clearance can't realize the installation etc. adopt to use cross head round pin cold assembly fixture through the design, make and can reach the assembly required precision after the assembly, do well and assemble preceding work, improved assembly efficiency, improve the life of spare part then, guarantee the reliability of complete machine life-span.
The utility model discloses a scheme is, install fixed dabber and fixed backing plate respectively on the frock platform, fixed dabber is last have with connecting rod part major part matched with mounting, go up the pinhole junction that round pin axle movable mounting has a perfect understanding mutually at cross head and connecting rod part microcephaly, the cross head is placed on fixed backing plate, interference fit when cross head round pin and connecting rod part microcephaly normal atmospheric temperature, is clearance fit after the cooling, places the lower pin axle on the frock platform of going up round pin axle below, has the opening on the fixed backing plate, the opening can hold the lower pin axle withdraw from and go up round pin axle whereabouts extremely the frock platform.
Further, a gasket is arranged between the small end of the connecting rod component and the crosshead.
Furthermore, a hoisting ring is arranged at the top of the cross head pin.
Further, the fixed mandrel and the fixed base plate are fixed on the tool platform through bolts.
Whole implementation process is earlier with fixed dabber and fixed backing plate use the bolt fastening on the frock platform, then install the connecting rod big end on fixed dabber, will go up the pintle and install on cross head and connecting rod part, and install the gasket between connecting rod microcephaly and cross head, put down the round pin axle in last round pin axle below, use hoisting equipment to take out the crosshead pin from the liquid nitrogen tank and install into connecting rod microcephaly hole rapidly from connecting rod part top after the crosshead pin contacts with last pintle, take out the lower pintle rapidly from fixed backing plate opening part, then crosshead pin and last pintle glide together, go up the pintle glide to contact behind the frock platform, the crosshead pin is the equipment completion promptly.
The utility model discloses the beneficial effect who reaches does: the assembly difficulty among larger parts can be effectively reduced; the installation between special fit gaps which cannot be installed can be realized; the assembly precision of the crosshead pin and the connecting rod part can be ensured; the work before assembly can be done in advance, so that the working efficiency during assembly is improved; the service life of the parts can be effectively prolonged.
Drawings
Fig. 1 is the structure schematic diagram of the crosshead pin cold assembling tool of the present invention.
In the figure, 1-fixed mandrel, 2-connecting rod component, 3-gasket, 4-fixed backing plate, 5-upper pin shaft, 6-lower pin shaft, 7-tooling platform, 8-crosshead pin, 9-hoisting equipment and 10-crosshead.
Detailed Description
The technical scheme of the invention is further explained in detail by combining the drawings in the specification.
Install fixed dabber 1 and fixed backing plate 4 respectively on the frock platform, fixed dabber 1 is last have with 2 major part matched with mountings of connecting rod part, go up 5 movable mounting of round pin axles at the pinhole junction that cross head 10 and 2 microcephalies of connecting rod part link up mutually, cross head 10 is placed on fixed backing plate 4, interference fit when cross head round pin 8 and the 2 microcephalies of connecting rod part normal atmospheric temperature, be clearance fit after the cooling, place lower round pin axle 6 on the frock platform of 5 below of last round pin axle, have the opening on the fixed backing plate 4, the opening can hold lower round pin axle 6 and withdraw from and go up round pin axle 5 whereabouts extremely frock platform 7. A gasket 3 is arranged between the small end of the connecting rod component 2 and the crosshead 10. And a hoisting ring is arranged at the top of the cross head pin 8. And the fixed mandrel 1 and the fixed base plate 4 are fixed on the tooling platform 7 through bolts.
The utility model provides a diaphragm compressor's crosshead pin cold charge assembly fixture, whole implementation process is earlier with fixed dabber and fixed backing plate use the bolt fastening on the frock platform, then install the connecting rod big-end at fixed dabber, install the last pintle head on crosshead and connecting rod part, and install the gasket between connecting rod microcephaly and crosshead, put down the round pin axle in last round pin axle below, use hoisting equipment to take out after the crosshead pin cools off from the liquid nitrogen tank and install into connecting rod microcephaly hole rapidly from connecting rod part top, after the crosshead pin contacts with last pintle, take out the lower pintle rapidly from fixed backing plate opening part, then crosshead pin and last pintle glide together, after the upper pintle gliding contacts the frock platform, the assembling of the crosshead pin is accomplished promptly.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, but equivalent modifications or changes made by those skilled in the art according to the present disclosure should be included in the scope of the present invention as set forth in the appended claims.
Claims (4)
1. The utility model provides a diaphragm compressor's cross pin cold charge assembly fixture, its characterized in that installs fixed dabber and fixed backing plate respectively on the frock platform, fixed dabber is last to have with connecting rod part major part matched with mounting, goes up the pinhole junction that pintle movable mounting link up mutually at cross head and connecting rod part microcephaly, the cross head is placed on fixed backing plate, interference fit when cross pin and connecting rod part microcephaly normal atmospheric temperature, is clearance fit after the cooling, put down round pin axle on the frock platform of upper pin axle below, there is the opening on the fixed backing plate, the opening can hold down the round pin axle withdraw from and go up round pin axle whereabouts extremely the frock platform.
2. The cold assembly tool for the crosshead pin of the diaphragm compressor as claimed in claim 1, wherein a spacer is installed between the small end of the connecting rod member and the crosshead.
3. The cold fitting assembly tool for the cross pin of the diaphragm compressor as claimed in claim 1, wherein a lifting ring is further provided at the top of the cross pin.
4. The cold assembly tool for the crosshead pin of the diaphragm compressor as claimed in claim 1, wherein the fixed mandrel and the fixed shim plate are fixed on the tool platform by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020850722.7U CN212265740U (en) | 2020-05-20 | 2020-05-20 | Cold assembly fixture for crosshead pin of diaphragm compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020850722.7U CN212265740U (en) | 2020-05-20 | 2020-05-20 | Cold assembly fixture for crosshead pin of diaphragm compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212265740U true CN212265740U (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020850722.7U Active CN212265740U (en) | 2020-05-20 | 2020-05-20 | Cold assembly fixture for crosshead pin of diaphragm compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN212265740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997160A (en) * | 2021-11-05 | 2022-02-01 | 重庆跃进机械厂有限公司 | Taper matching grinding clamp and method for large crosshead assembly |
-
2020
- 2020-05-20 CN CN202020850722.7U patent/CN212265740U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997160A (en) * | 2021-11-05 | 2022-02-01 | 重庆跃进机械厂有限公司 | Taper matching grinding clamp and method for large crosshead assembly |
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