CN219337560U - Combined sealing ring expanding device - Google Patents
Combined sealing ring expanding device Download PDFInfo
- Publication number
- CN219337560U CN219337560U CN202223598084.2U CN202223598084U CN219337560U CN 219337560 U CN219337560 U CN 219337560U CN 202223598084 U CN202223598084 U CN 202223598084U CN 219337560 U CN219337560 U CN 219337560U
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- bevel gear
- movable
- sealing ring
- combined sealing
- bevel
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Abstract
The utility model discloses a combined sealing ring expanding device, which comprises: the movable stepped taper table is provided with a plurality of round step surfaces with diameters gradually reduced from bottom to top at the outer side, and the movable stepped taper table is trisected in the circumferential direction to form three movable stepped taper table monomers, and the bottom surface of each movable stepped taper table monomer is provided with a first plane thread; the movable step frustum is arranged at the upper part of the three-jaw chuck, a short shaft is arranged at the center of the top of the three-jaw chuck, an axle center hole of the bevel gear is arranged on the short shaft, a second plane thread is arranged on the top surface of the bevel gear, and bevel teeth are arranged on the bottom surface of the bevel gear; the second phase planar thread is engaged with the first planar thread; the bevel pinion is meshed with the bevel gear; the spanner rod rotating shaft of the spanner rod is connected with the outer end of the bevel pinion. The combined sealing ring after being installed is tightly attached to the annular groove on the part, so that the problem that the diameter of the outer circle of the combined sealing ring after being installed meets the product requirement is effectively solved.
Description
Technical Field
The utility model belongs to the field of combined sealing ring installation devices, and particularly relates to a combined sealing ring expansion device.
Background
The combined sealing ring is a sealing piece for a bidirectional piston, is formed by compounding hard PTEE and soft O-shaped rings, and has certain difficulty in installation. At present, after the combined sealing ring is expanded by adopting a nonmetallic expansion device, the combined sealing ring is arranged in an annular groove, then the combined sealing ring is clamped by a clamping clamp, and after the combined sealing ring is kept for a period of time, the combined sealing ring is slowly contracted to be arranged in the annular groove.
Because the combined sealing ring is not tightly attached to the annular groove on the part, the diameter of the outer circle of the combined sealing ring is difficult to meet the product requirement after the combined sealing ring is installed. Meanwhile, the non-metal expansion device is damaged due to uneven force applied in the use process, and the combined sealing ring is uneven in expansion in the circumferential direction.
Disclosure of Invention
The utility model aims to provide a combined sealing ring expansion device, wherein the installed combined sealing ring is tightly attached to an annular groove on a part, the diameter of the outer circle of the installed combined sealing ring meets the product requirement, and the problem that the diameter of the outer circle of the installed combined sealing ring meets the product requirement is effectively solved.
The technical proposal is as follows:
a combination seal ring expansion device comprising: the movable stepped taper table is provided with a plurality of round step surfaces with diameters gradually reduced from bottom to top at the outer side, and the movable stepped taper table is trisected in the circumferential direction to form three movable stepped taper table monomers, and the bottom surface of each movable stepped taper table monomer is provided with a first plane thread; the movable step frustum is arranged at the upper part of the three-jaw chuck, a short shaft is arranged at the center of the top of the three-jaw chuck, an axle center hole of the bevel gear is arranged on the short shaft, a second plane thread is arranged on the top surface of the bevel gear, and bevel teeth are arranged on the bottom surface of the bevel gear; the second phase planar thread is engaged with the first planar thread; the bevel pinion is meshed with the bevel gear; the spanner rod rotating shaft of the spanner rod is connected with the outer end of the bevel pinion.
Further, a sliding groove is radially formed in the top surface of the three-jaw chuck, a circular concave surface is formed in the middle of the three-jaw chuck, and a chuck through hole is formed in the circular concave surface; the spanner rod rotating shaft is arranged in the chuck through hole, and the short shaft is arranged at the bottom of the round concave surface; the bottom of the movable ladder frustum monomer is provided with a sliding block, and the sliding block is arranged in the sliding groove.
Compared with the prior art, the utility model has the following advantages:
the combined sealing ring is installed by using the utility model, the installed combined sealing ring is tightly attached to the annular groove on the part, the diameter of the outer circle of the installed combined sealing ring meets the product requirement, and the problem that the diameter of the outer circle of the installed combined sealing ring meets the product requirement is effectively solved.
Drawings
FIG. 1 is a schematic view of a combined seal ring expansion device according to the present utility model;
fig. 2 is a schematic structural view of the three-jaw chuck according to the present utility model.
Detailed Description
The following description fully illustrates the specific embodiments of the utility model to enable those skilled in the art to practice and reproduce it.
FIG. 1 is a schematic view of a combined seal ring expansion device according to the present utility model; as shown in fig. 2, a schematic structural diagram of the three-jaw chuck 2 according to the present utility model is shown.
A combination seal ring expansion device comprising: a movable ladder frustum 1, a three-jaw chuck 2 and a spanner rod 3.
The outside of the movable ladder frustum 1 is provided with a plurality of round step surfaces with diameters gradually reduced from bottom to top, the movable ladder frustum 1 is trisected in the circumferential direction to form three movable ladder frustum monomers 11, and the bottom surface of the movable ladder frustum monomers 11 is provided with a first plane thread 12. The movable ladder frustum 1 is arranged at the upper part of the three-jaw chuck 2, a short shaft is arranged at the center of the top of the three-jaw chuck 2, an axle center hole 23 of the bevel gear 21 is arranged on the short shaft, a second plane thread 22 is arranged on the top surface of the bevel gear 21, and bevel teeth 23 are arranged on the bottom surface of the bevel gear 21; the second planar thread 22 engages the first planar thread 12; bevel pinion 24 engages bevel gear 23; the wrench shaft 31 of the wrench 3 is connected to the outer end of the bevel pinion 24.
The top surface of the three-jaw chuck 2 is radially provided with a chute, the middle part of the three-jaw chuck is provided with a circular concave surface, and the circular concave surface is provided with a chuck through hole; the spanner rod rotating shaft 31 is arranged in the chuck through hole, and the short shaft is arranged at the bottom of the round concave surface; the bottom of the movable ladder frustum monomer 11 is provided with a sliding block, and the sliding block is arranged in the sliding groove.
When the combined sealing ring is installed, a plurality of combined sealing rings are sequentially placed on the outer walls of a plurality of circular step surfaces, the spanner rod 3 is rotated clockwise, the movable step frustum single body 11 moves to the outer side uniformly and slowly in the radial direction, and the combined sealing ring expands in the radial direction; the spanner rod 3 is rotated anticlockwise, the movable step frustum single body 11 contracts in the radial direction, the combined sealing rings are taken down, then a plurality of combined sealing rings are sequentially installed in an annular groove of a piston, the combined sealing rings are clamped by a clamping clamp, the combined sealing rings are compressed in the annular groove, lubricating grease is smeared on the inner wall of a pressing sleeve, finally the pressing sleeve is pressed into the piston provided with the combined sealing rings, the pressing sleeve is kept for 15-30 minutes, the combined sealing rings shrink to be tightly attached to parts slowly and uniformly, the pressing sleeve is taken down, the piston is installed in a cylinder barrel, the outer diameter of the piston provided with the combined sealing rings is consistent with the inner diameter of the cylinder barrel, the tightness of the assembled cylinder barrel is guaranteed, and meanwhile, the damage of the combined sealing rings is avoided.
The terminology used herein is for the purpose of description and illustration only and is not intended to be limiting. As the present utility model may be embodied in several forms without departing from the spirit or essential attributes thereof, it should be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalences of such metes and bounds are therefore intended to be embraced by the appended claims.
Claims (2)
1. A combination seal ring expansion device, comprising: the movable stepped taper table is provided with a plurality of round step surfaces with diameters gradually reduced from bottom to top at the outer side, and the movable stepped taper table is trisected in the circumferential direction to form three movable stepped taper table monomers, and the bottom surface of each movable stepped taper table monomer is provided with a first plane thread; the movable step frustum is arranged at the upper part of the three-jaw chuck, a short shaft is arranged at the center of the top of the three-jaw chuck, an axle center hole of the bevel gear is arranged on the short shaft, a second plane thread is arranged on the top surface of the bevel gear, and bevel teeth are arranged on the bottom surface of the bevel gear; the second phase planar thread is engaged with the first planar thread; the bevel pinion is meshed with the bevel gear; the spanner rod rotating shaft of the spanner rod is connected with the outer end of the bevel pinion.
2. The combined seal ring expansion device according to claim 1, wherein the top surface of the three-jaw chuck is radially provided with a chute, the middle part of the three-jaw chuck is provided with a circular concave surface, and the circular concave surface is provided with a chuck through hole; the spanner rod rotating shaft is arranged in the chuck through hole, and the short shaft is arranged at the bottom of the round concave surface; the bottom of the movable ladder frustum monomer is provided with a sliding block, and the sliding block is arranged in the sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223598084.2U CN219337560U (en) | 2022-12-31 | 2022-12-31 | Combined sealing ring expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223598084.2U CN219337560U (en) | 2022-12-31 | 2022-12-31 | Combined sealing ring expanding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219337560U true CN219337560U (en) | 2023-07-14 |
Family
ID=87110201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223598084.2U Active CN219337560U (en) | 2022-12-31 | 2022-12-31 | Combined sealing ring expanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219337560U (en) |
-
2022
- 2022-12-31 CN CN202223598084.2U patent/CN219337560U/en active Active
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