CN214186967U - Piston rod assembling and disassembling protective sleeve - Google Patents
Piston rod assembling and disassembling protective sleeve Download PDFInfo
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- CN214186967U CN214186967U CN202022848184.0U CN202022848184U CN214186967U CN 214186967 U CN214186967 U CN 214186967U CN 202022848184 U CN202022848184 U CN 202022848184U CN 214186967 U CN214186967 U CN 214186967U
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- piston rod
- protective sheath
- boss
- protective
- flap
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Abstract
The utility model provides a piston rod loading and unloading protective sleeve, which comprises a first protective sleeve and a second protective sleeve which are sleeved on a piston rod boss, and an end cover which is used for protecting the end part of a piston rod; first protective sheath and second protective sheath are cylindricly and the cover is established and is fixed on the boss, first protective sheath and second protective sheath lean on and the external diameter is unanimous. In the scheme, the first protective sleeve and the second protective sleeve cover the bosses on the piston rod, so that when the piston rod passes through the oil scraper ring and the filler ring, the oil scraper ring and the filler ring cannot enter the grooves among the bosses under the action of the tension spring, and the abrasion of the oil scraper ring and the filler ring can be effectively reduced.
Description
Technical Field
The utility model belongs to compressor cylinder field especially relates to a piston rod loading and unloading protective sheath.
Background
The piston rods used in existing compressor cylinders require bosses on the piston rods for coupling with crosshead flanges to transfer motion. A plurality of groups of packing rings are arranged in a connecting cylinder of the cylinder, and a corresponding oil scraper ring is arranged in the middle body. The packing ring and the oil scraper ring are under the effect of extension spring for the packing ring contracts to the piston rod with the oil scraper ring, and the packing ring is used for avoiding gaseous along with the piston rod motion and reveals, and the oil scraper ring scrapes unnecessary lubricating oil. However, due to the arrangement of the bosses on the piston rod, in the process of assembling and disassembling the piston rod, the bosses are uneven, so that the packing ring and the oil scraper ring are easily damaged.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a piston rod loading and unloading protection sleeve for reducing the wear rate of a packing ring and a scraper ring.
In order to achieve the above and other related objects, the present invention provides a piston rod assembling and disassembling protection sleeve, which includes a first protection sleeve and a second protection sleeve sleeved on a piston rod boss, and an end cap for protecting the end of the piston rod; first protective sheath and second protective sheath are cylindricly and the cover is established and is fixed on the boss, first protective sheath and second protective sheath lean on and the external diameter is unanimous.
Further, first protective sheath includes that first lamella and second are embraced tight lamella, and first protective sheath is fixed into in the combination of first lamella and the second of embracing tightly the lamella.
Further, the second protective sheath includes that the third is embraced tight lamella and the fourth is embraced tight lamella, the third is embraced tight lamella and the fourth is embraced tight lamella combination and is fixed into the second protective sheath.
Further, a supporting table for supporting the piston rod in an abutting mode is arranged in each of the first protective sleeve and the second protective sleeve.
Furthermore, a supporting table is arranged in each of the first clasping valve, the second clasping valve, the third clasping valve and the fourth clasping valve.
Further, the support table is semicircular and annular, and the support table is arranged along the circumferential direction of the first protection sleeve and the second protection sleeve.
Further, boss on the piston rod includes first boss, second boss, third boss and the fourth boss that sets gradually along piston rod body axial, first protective sheath pot head supports with the piston rod body on first boss and leans on, first protective sheath other pot head supports on the second boss and supports with the second protective sheath and lean on, second protective sheath one end supports with first protective sheath and leans on, second protective sheath other pot head is on the fourth boss.
Furthermore, the end cover covers the end of the piston rod and is fixedly connected with a screw hole formed in the end of the piston rod through a bolt.
Further, the end cover and the second protective sleeve abut against one end, the outer diameter of the end cover is consistent with that of the second protective sleeve, and one end, far away from the second protective sleeve, of the end cover is in a round table shape.
As above, the utility model discloses a piston rod loading and unloading protective sheath has following beneficial effect:
because the first protective sleeve and the second protective sleeve cover the bosses on the piston rod, when the piston rod passes through the oil scraper ring and the filler ring, the oil scraper ring and the filler ring cannot enter the grooves among the bosses under the action of the tension spring, and the abrasion of the oil scraper ring and the filler ring can be effectively reduced.
Because first protective sheath and second protective sheath are independent setting, compare for only setting up a protective sheath that covers all bosss, the dismouting on the piston rod is more convenient.
Due to the arrangement of the end cover, the end part of the piston rod is protected conveniently.
Drawings
Fig. 1 is a schematic structural diagram of a piston rod in an embodiment of the present invention.
Fig. 2 is a schematic structural view of the piston rod assembling and disassembling protection sleeve in the embodiment of the present invention.
Fig. 3 is a schematic view of a sectional structure of the piston rod assembling and disassembling protection sleeve according to an embodiment of the present invention.
Fig. 4 is a schematic view of the fitting structure of the piston rod and the piston rod assembling and disassembling protection sleeve according to the embodiment of the present invention.
Fig. 5 is a matching relation diagram of the piston rod assembling and disassembling protective sleeve, the piston rod and the cylinder body before the piston rod is disassembled from the cylinder body in the embodiment of the present invention.
Fig. 6 is the embodiment of the present invention is a matching relationship diagram of the piston rod dismounting protective sleeve, the piston rod and the cylinder body during dismounting the piston rod from the cylinder body.
Fig. 7 is an enlarged view of a portion a in fig. 6.
Detailed Description
Reference numerals in the drawings of the specification include: the piston rod assembly comprises a piston rod 1, a first boss 101, a second boss 102, a third boss 103, a fourth boss 104, a body 105, a cylinder body 2, a packing ring 3, an oil scraper ring 4, a piston rod assembling and disassembling protective sleeve 5, a first protective sleeve 501, a second protective sleeve 502, an end cover 503, a bolt 504, a support table 505 and a tension spring 6.
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Examples
The embodiment provides a piston rod assembling and disassembling protective sleeve, a piston rod 1 suitable for the piston rod assembling and disassembling protective sleeve comprises a body 105 and bosses arranged on the body 105, the bosses comprise a first boss 101, a second boss 102, a third boss 103 and a fourth boss 104 which are sequentially arranged along the axial direction of the body 105 from left to right, and a threaded hole (as shown in fig. 1) is formed in the end face of the right side of the piston rod 1.
As shown in fig. 2 to 7, the piston rod loading and unloading protection sleeve includes: first protective sheath 501, second protective sheath 502 and end cover 503, first protective sheath 501 and second protective sheath 502 all are cylindricly and the external diameter is unanimous with piston rod 1 body 105 diameter, first protective sheath 501 is embraced tight lamella and second by the first lamella of embracing tightly and is constituteed, first lamella and the second of embracing tightly are embraced the radial tangent plane of lamella and all are half circular shape, first lamella and the second of embracing tightly is held the fixed cylindric first protective sheath 501 that forms of lamella, first lamella and the second of embracing tightly is held through the fix with screw between the lamella, first protective sheath 501 is used for the cover on piston rod 1's first boss 101 and second boss 102. The second protective sleeve 502 is composed of a third clasping valve and a fourth clasping valve, and the third clasping valve and the fourth clasping valve are fixed through screws to form the cylindrical second protective sleeve 502. The second protective sleeve 502 is sleeved on the second boss 102, the third boss 103 and the fourth boss 104 of the piston rod 1. Namely, the left end of the first protection sleeve 501 is used for being sleeved on the first boss 101, the end surface of the first protection sleeve is abutted against the body 105 of the piston rod 1, and the right end of the first protection sleeve 501 is used for being sleeved on the second boss 102; the left end of the second protection sleeve 502 is sleeved on the second boss 102, the end surface of the second protection sleeve is abutted against the first protection sleeve 501, and the right end of the second protection sleeve 502 is sleeved on the fourth boss 104 and covers the whole fourth boss 104. Both ends of the first protection sleeve 501 and the second protection sleeve 502 are arranged on the bosses, and the end portions of the first protection sleeve 501 and the second protection sleeve 502 are abutted to the sunken positions between the bosses, so that the tilting of one end of the piston rod 1 under the compression action of the packing ring 3 or the oil scraper ring 4 in the dismounting process can be effectively avoided.
All the protrusion is provided with a supporting bench 505 on first lamella and the second lamella inner wall of hugging closely, and when first lamella and the second valve of hugging closely was fixed, supporting bench 505 on the first lamella of hugging closely just hugged closely the supporting bench 505 on the second lamella. When the first protective sheath 501 and the piston rod 1 are mated, the abutment 505 on the first clasping flap and the abutment 505 on the second clasping flap abut against the piston rod 1 between the first boss 101 and the second boss 102, and the abutment 505 is form-fitted with the piston rod 1 with which it is in contact. In the present embodiment, the support stand 505 may have a square shape, or may have an annular shape provided along the circumferential direction of the first protective cover or the second protective cover.
Supporting tables 505 are convexly arranged on the inner walls of the third clasping valve and the fourth clasping valve, and when the third clasping valve and the fourth clasping valve are fixed, the supporting tables 505 on the third clasping valve are just opposite to the supporting tables 505 on the fourth clasping valve. When the second protective sleeve 502 and the piston rod 1 are matched, the support table 505 on the third clasping flap and the support table 505 on the fourth clasping flap abut against the piston rod 1 between the second boss 102 and the third boss 103, and the abutting surface shapes of the support table 505 on the third clasping flap and the piston rod 1 on the fourth clasping flap are matched with the shape of the piston rod 1. The support table 505 is provided to support in this embodiment.
The right side of the fourth boss 104 is an end face of the piston rod 1, an end cover 503 is used for covering the end face of the piston rod 1 and protecting the end of the piston rod 1, the outer diameters of the end cover 503 and the left end of the second protective sleeve 502 are the same as those of the second protective sleeve 502, and the right end of the end cover 503 is in a circular truncated cone shape. The end cover 503 is provided with a mounting hole corresponding to the threaded hole of the piston rod 1, and the end cover 503 and the piston rod 1 are fixed by inserting the bolt 504 into the mounting hole and the threaded hole.
During specific implementation, if the piston rod 1 needs to be detached from the cylinder body 2, the first clasping flap is placed at the corresponding position of the piston rod 1, the second clasping flap is correspondingly installed at the corresponding position of the piston rod 1, and the first clasping flap and the second clasping flap are fixed through screws.
The third clasping valve is placed at the corresponding position of the piston rod 1, the fourth clasping valve is correspondingly installed at the corresponding position of the piston rod 1, and the third clasping valve and the fourth clasping valve are fixed through screws.
The end cover 503 is covered on the right end of the piston rod 1, and then the end cover 503 and the piston rod 1 are fixed by the bolt 504, so that the installation of the piston rod 1 dismounting protective sleeve in the scheme is completed, and the installation is completed as shown in fig. 4.
Then, as shown in fig. 5 and 6, the piston rod 1 moves to the left, and since the first boss 101, the second boss 102, the third boss 103 and the fourth boss 104 are all covered by the piston rod 1 loading and unloading protective sleeve, when the piston rod passes through the oil scraper ring 4 and the packing ring 3, the oil scraper ring 4 and the packing ring 3 cannot enter the grooves between the bosses under the action of the tension spring 6, and the abrasion of the oil scraper ring 4 and the packing ring 3 is reduced.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. A piston rod assembling and disassembling protective sleeve is characterized by comprising a first protective sleeve and a second protective sleeve which are sleeved on a piston rod boss, and an end cover which is used for protecting the end part of a piston rod; first protective sheath and second protective sheath are cylindricly and the cover is established and is fixed on the boss, first protective sheath and second protective sheath lean on and the external diameter is unanimous.
2. The piston rod handling protective sheath of claim 1 wherein the first protective sheath includes a first gripping flap and a second gripping flap, the first gripping flap and the second gripping flap being secured in combination to form the first protective sheath.
3. The piston rod handling protective sheath of claim 2 wherein the second protective sheath includes a third gripping flap and a fourth gripping flap, the third gripping flap and the fourth gripping flap being secured in combination to form the second protective sheath.
4. The piston rod handling boot of claim 3 wherein a support ledge is provided in each of the first boot and the second boot for supporting against the piston rod.
5. The piston rod handling protective sheath of claim 4, wherein a support platform is disposed within each of the first clasping flap, the second clasping flap, the third clasping flap, and the fourth clasping flap.
6. The piston rod handling protective sheath of claim 4 wherein the support platform is semi-circular and the support platform is disposed circumferentially of the first protective sheath and the second protective sheath.
7. The piston rod handling protective sheath of claim 1, wherein the bosses on the piston rod include a first boss, a second boss, a third boss, and a fourth boss sequentially arranged along the axial direction of the piston rod body, one end of the first protective sheath is sleeved on the first boss and abuts against the piston rod body, the other end of the first protective sheath is sleeved on the second boss and abuts against the second protective sheath, one end of the second protective sheath abuts against the first protective sheath, and the other end of the second protective sheath is sleeved on the fourth boss.
8. The piston rod handling boot of claim 1, wherein the end cap covers the end of the piston rod and is secured to the threaded bore formed in the end of the piston rod by a bolt.
9. The piston rod handling boot of claim 8, wherein the end cap and the second boot have an outer diameter corresponding to the second boot at an end thereof facing away from the second boot, and the end of the end cap is frustoconical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022848184.0U CN214186967U (en) | 2020-12-01 | 2020-12-01 | Piston rod assembling and disassembling protective sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022848184.0U CN214186967U (en) | 2020-12-01 | 2020-12-01 | Piston rod assembling and disassembling protective sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214186967U true CN214186967U (en) | 2021-09-14 |
Family
ID=77650788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022848184.0U Active CN214186967U (en) | 2020-12-01 | 2020-12-01 | Piston rod assembling and disassembling protective sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214186967U (en) |
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2020
- 2020-12-01 CN CN202022848184.0U patent/CN214186967U/en active Active
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