CN113021244A - Sealing ring assembling device - Google Patents
Sealing ring assembling device Download PDFInfo
- Publication number
- CN113021244A CN113021244A CN202110228936.XA CN202110228936A CN113021244A CN 113021244 A CN113021244 A CN 113021244A CN 202110228936 A CN202110228936 A CN 202110228936A CN 113021244 A CN113021244 A CN 113021244A
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- CN
- China
- Prior art keywords
- hole
- nut
- blind hole
- screw
- shell
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- 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.)
- Pending
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/0028—Tools for removing or installing seals
Abstract
The invention belongs to the technical field of mechanical assembly and discloses a sealing ring assembly device.A shell is in a cylindrical shape with an opening at the lower end, and an annular boss on the shell is provided with an axial first through hole; the nut is fixed above the annular boss and can rotate relative to the annular boss; the screw rod is provided with an external thread matched with the nut, penetrates through the nut and the axial first through hole from top to bottom and extends into the shell; the upper end of the screw rod is axially provided with a blind hole, and the transmission rod is arranged at the lower part of the blind hole and can slide up and down relative to the blind hole; the upper part of the blind hole is provided with an internal thread; the ejector rod is provided with external threads and is screwed into the blind hole; n ejector pins are arranged on the side wall of the bottom end of the screw rod along the radial direction, the inner sides of the ejector pins extend into the blind holes, rubber sleeves are sleeved on the screw rod on the outer sides of the ejector pins, and the rubber sleeves are tightly pressed on the outer sides of the ejector pins; the steel ball is arranged at the bottom end of the blind hole; the transmission rod pushes the steel ball to move downwards, and the steel ball extrudes the ejector pin to enable the rubber sleeve to bulge along the radial direction so as to clamp the sealing ring; the nut is rotated to move the screw downwardly to install the seal ring in place.
Description
Technical Field
The invention belongs to the technical field of mechanical assembly, and particularly relates to a sealing ring assembly device.
Background
The output end of a central pull rod in an air compressor of an aviation auxiliary power device needs a dustproof sealing ring, and the sealing ring is in small clearance fit with the shaft diameter, so that the sealing ring needs to be stably and accurately mounted and dismounted. The tools used for assembling and disassembling the sealing device are generally two different sets of devices, the assembly tool has the working principle that the upper end face of the sealing device is knocked to enter a working position, and the disassembling tool hooks the lower end face of the sealing device by using a clamping jaw to disassemble. The use of two sets of devices makes the installation very loaded down with trivial details and can't guarantee the installation precision, consequently needs the special frock of customization to guarantee the installation requirement to the protection sealing washer is not by the fish tail.
Disclosure of Invention
The invention aims to provide an assembling and disassembling tool which can integrate an assembling function and a disassembling function, save tool cost and facilitate tool management.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a seal ring assembly apparatus comprising: the device comprises a mandril 1, a shell 4, a screw 2, a transmission rod 14, a nut 17, a steel ball 13, a jacking pin 8 and a rubber sleeve 12;
the shell is cylindrical with an opening at the lower end, an annular boss is arranged at the upper end of the shell, and an axial first through hole is formed in the annular boss;
the nut is fixed above the annular boss and can rotate relative to the annular boss;
the screw rod is provided with an external thread matched with the nut, penetrates through the nut and the axial first through hole from top to bottom and extends into the shell;
the upper end of the screw is provided with a blind hole along the axial direction, and the depth of the blind hole is not less than 90% of the length of the screw;
the transmission rod is arranged at the lower part of the blind hole and can freely slide up and down relative to the blind hole; the upper part of the blind hole is provided with an internal thread; the ejector rod is provided with an external thread matched with the internal thread on the upper part of the blind hole, and the ejector rod is screwed into the blind hole; the push rod moves downwards relative to the blind hole through rotation so as to push the transmission rod to move downwards;
n ejector pins are arranged on the side wall of the bottom end of the screw rod along the radial direction, the inner sides of the ejector pins extend into the blind holes, the rubber sleeve is sleeved on the screw rod on the outer side of the ejector pins, and the rubber sleeve is tightly pressed on the outer side of the ejector pins;
the steel ball is arranged at the bottom end of the blind hole; the transmission rod pushes the steel ball to move downwards, and the steel ball extrudes the ejector pin to enable the rubber sleeve to bulge along the radial direction so as to clamp the sealing ring;
the nut is rotated to move the screw downwardly to install the seal ring in place.
Furthermore, a counter bore is formed in the upper end of the annular boss, the first through hole is formed in the center of the counter bore, and the diameter of the counter bore is larger than that of the first through hole;
the nut is arranged in the countersunk hole.
Further, the apparatus further comprises: a first cylindrical pin;
a first limiting hole is formed in the side wall of the counter bore along the radial direction; the outer side wall of the nut is provided with an annular limiting groove;
the cylindrical pin penetrates through the limiting hole and extends into the annular limiting groove so as to limit the nut to move up and down relative to the annular boss.
Further, the inner side of the ejector pin is a conical surface.
Further, the apparatus further comprises: a second cylindrical pin;
a second limiting hole is formed in the side wall of the first through hole of the annular boss along the radial direction; an axial limiting groove is formed in the corresponding position of the second limiting hole in the side wall of the screw;
and the second cylindrical pin penetrates through the second through hole and is inserted into the axial limiting groove to limit the screw to rotate relative to the shell.
Further, the apparatus further comprises: a plurality of stop pins;
the outer side wall of the lower end of the screw is provided with an annular flange; the lower end face of the rubber sleeve is tightly attached to the annular flange; the stop pins are uniformly distributed along the circumferential direction and tightly attached to the upper end face of the rubber sleeve, and the screw rods are inserted along the radial direction.
Further, the seal ring assembly device is used for assembling the seal ring to the rotor shaft;
the outer side wall of the rotor shaft is provided with an annular groove;
the device further comprises: three clamping plates;
three positioning holes are formed in the side wall of the lower end of the shell at an angle of 120 degrees;
the clamping plate penetrates through the positioning hole and is inserted into the annular groove of the rotor wing shaft to fix the device and the rotor wing shaft.
Further, the apparatus further comprises: three limiting sleeves; a convex shoulder is arranged on the outer side wall of the lower end of the shell; the clamping plate is provided with a limiting hole; the limiting sleeve is inserted into the limiting hole.
The inner diameter of the tensioning sealing device is utilized for assembly and disassembly, the assembly tool and the disassembly tool are integrated, tool cost is saved, and tool management is facilitated.
Drawings
FIG. 1 is a seal ring assembly apparatus;
1-ejector rod, 2-screw rod, 3-first cylindrical pin, 4-shell, 5-stop pin, 6-limit sleeve, 7-clamping plate, 8-ejector pin, 9-opening sleeve, 10-spring ring, 11, limit pin, 12-rubber sleeve, 13-steel ball, 14-transmission rod, 15-second cylindrical pin, 16-first handle, 17-nut and 18-second handle.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the detailed description.
A seal ring assembling apparatus, as shown in fig. 1, comprising: the device comprises a mandril 1, a shell 4, a screw 2, a transmission rod 14, a nut 17, a steel ball 13, a jacking pin 8 and a rubber sleeve 12;
the shell is cylindrical with an opening at the lower end, an annular boss is arranged at the upper end of the shell, and an axial first through hole is formed in the annular boss; the nut is fixed above the annular boss and can rotate relative to the annular boss; the screw rod is provided with an external thread matched with the nut, penetrates through the nut and the axial first through hole from top to bottom and extends into the shell; the upper end of the screw rod is axially provided with a blind hole, and the depth of the blind hole is not less than 90% of the length of the screw rod; the transmission rod is arranged at the lower part of the blind hole and can freely slide up and down relative to the blind hole; the upper part of the blind hole is provided with an internal thread; the ejector rod is provided with an external thread matched with the internal thread on the upper part of the blind hole, and the ejector rod is screwed into the blind hole; the push rod moves downwards relative to the blind hole through rotation so as to push the transmission rod to move downwards; n ejector pins are arranged on the side wall of the bottom end of the screw rod along the radial direction, the inner sides of the ejector pins extend into the blind holes, rubber sleeves are sleeved on the screw rod on the outer sides of the ejector pins, and the rubber sleeves are tightly pressed on the outer sides of the ejector pins; the steel ball is arranged at the bottom end of the blind hole; the transmission rod pushes the steel ball to move downwards, and the steel ball extrudes the ejector pin to enable the rubber sleeve to bulge along the radial direction so as to clamp the sealing ring; the nut is rotated to move the screw downwardly to install the seal ring in place.
Furthermore, a counter bore is arranged at the upper end of the annular boss, the first through hole is arranged in the center of the counter bore, and the diameter of the counter bore is larger than that of the first through hole; the nut is arranged in the countersunk hole.
Further, the apparatus further comprises: a first cylindrical pin 3; a first limiting hole is formed in the side wall of the counter bore along the radial direction; the outer side wall of the nut is provided with an annular limiting groove; the cylindrical pin penetrates through the limiting hole and extends into the annular limiting groove so as to limit the nut to move up and down relative to the annular boss.
Furthermore, the inner side of the ejector pin is a conical surface, the ejector pin is also connected with a spring ring 10, and the spring ring is used for automatically returning the ejector pin.
Further, the apparatus further comprises: a second cylindrical pin 15; a second limiting hole is formed in the side wall of the first through hole of the annular boss along the radial direction; an axial limiting groove is formed in the corresponding position of the second limiting hole in the side wall of the screw; and a second cylindrical pin penetrates through the second through hole and is inserted into the axial limiting groove to limit the screw to rotate relative to the shell.
Further, the apparatus further comprises: a plurality of stop pins 5; the outer side wall of the lower end of the screw is provided with an annular flange; the lower end face of the rubber sleeve is tightly attached to the annular flange; a plurality of stop pins are uniformly distributed along the circumferential direction and tightly attached to the upper end surface of the rubber sleeve, and the stop pins are inserted into the screw rods along the radial direction.
Further, a seal ring assembly device is used for assembling the seal ring to the rotor shaft; the outer side wall of the rotor shaft is provided with an annular groove; the device still includes: three clamping plates 7; three positioning holes are formed in the side wall of the lower end of the shell at an angle of 120 degrees; the cardboard passes the locating hole and inserts rotor shaft ring inslot and is fixed with above-mentioned device and rotor shaft.
Further, the apparatus further comprises: three position-limiting sleeves 6; a convex shoulder is arranged on the outer side wall of the lower end of the shell; the clamping plate is provided with a limiting hole; the limiting sleeve is inserted into the limiting hole.
Further, a first handle 16 and a second handle 18; the first handle 16 penetrates through the nut 17 along the radial direction and is used for driving the nut to rotate; the second handle 18 radially penetrates the top of the push rod and is used for driving the push rod to rotate.
The working principle of the sealing ring assembling device is that as shown in figure 1, the inner diameter of a sealing device is attached to a rubber sleeve 12, an ejector rod 1 is rotated to enable the ejector rod to be screwed in to push a transmission rod 14 to move downwards, the transmission rod drives a steel ball 13 downwards, the steel ball is pushed downwards into three uniformly distributed conical ejector pins 8, the three ejector pins expand outwards to prop open an opening sleeve 9, and the opening sleeve uniformly expands the rubber sleeve 12 to tension the sealing device. Then the clamping plate 7 is clamped into a shaft outer diameter clearance groove, the clamping plate is fixed by the limiting sleeve 6, and the nut 17 is rotated to enable the screw rod 2 to be screwed into the shaft inner diameter. After the sealing device is stably sent into the inner diameter of the shaft, the ejector rod 1 is rotated reversely, and the ejector pin 8 is ejected under the action of the spring ring 10, so that the opening sleeve 9 and the rubber sleeve 12 are contracted and taken out of the tool. The same operation is carried out when the sealing ring is disassembled.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A sealing ring assembling apparatus, characterized in that: the device comprises: the device comprises a top rod (1), a shell (4), a screw (2), a transmission rod (14), a nut (17), a steel ball (13), a top pin (8) and a rubber sleeve (12);
the shell is cylindrical with an opening at the lower end, an annular boss is arranged at the upper end of the shell, and an axial first through hole is formed in the annular boss;
the nut is fixed above the annular boss and can rotate relative to the annular boss;
the screw rod is provided with an external thread matched with the nut, penetrates through the nut and the axial first through hole from top to bottom and extends into the shell;
the upper end of the screw is provided with a blind hole along the axial direction, and the depth of the blind hole is not less than 90% of the length of the screw;
the transmission rod is arranged at the lower part of the blind hole and can freely slide up and down relative to the blind hole; the upper part of the blind hole is provided with an internal thread; the ejector rod is provided with an external thread matched with the internal thread on the upper part of the blind hole, and the ejector rod is screwed into the blind hole; the push rod moves downwards relative to the blind hole through rotation so as to push the transmission rod to move downwards;
n ejector pins are arranged on the side wall of the bottom end of the screw rod along the radial direction, the inner sides of the ejector pins extend into the blind holes, the rubber sleeve is sleeved on the screw rod on the outer side of the ejector pins, and the rubber sleeve is tightly pressed on the outer side of the ejector pins;
the steel ball is arranged at the bottom end of the blind hole; the transmission rod pushes the steel ball to move downwards, and the steel ball extrudes the ejector pin to enable the rubber sleeve to bulge along the radial direction so as to clamp the sealing ring;
the nut is rotated to move the screw downwardly to install the seal ring in place.
2. A seal ring assembling apparatus according to claim 1, wherein:
the upper end of the annular boss is provided with a counter bore, the first through hole is arranged in the center of the counter bore, and the diameter of the counter bore is larger than that of the first through hole;
the nut is arranged in the countersunk hole.
3. A seal ring assembling apparatus according to claim 2, wherein: the device further comprises: a first cylindrical pin (3);
a first limiting hole is formed in the side wall of the counter bore along the radial direction; the outer side wall of the nut is provided with an annular limiting groove;
the first cylindrical pin penetrates through the limiting hole and extends into the annular limiting groove so as to limit the nut to move up and down relative to the annular boss.
4. A seal ring assembling apparatus according to claim 3, wherein: the inner side of the ejector pin is a conical surface.
5. A seal ring assembling apparatus according to claim 4, wherein: the device further comprises: a second cylindrical pin;
a second limiting hole is formed in the side wall of the first through hole of the annular boss along the radial direction; an axial limiting groove is formed in the corresponding position of the second limiting hole in the side wall of the screw;
and the second cylindrical pin penetrates through the second through hole and is inserted into the axial limiting groove to limit the screw to rotate relative to the shell.
6. A seal ring assembling apparatus according to claim 4, wherein: the device further comprises: a plurality of stop pins (5);
the outer side wall of the lower end of the screw is provided with an annular flange; the lower end face of the rubber sleeve is tightly attached to the annular flange; the stop pins are uniformly distributed along the circumferential direction and tightly attached to the upper end face of the rubber sleeve, and the screw rods are inserted along the radial direction.
7. A seal ring assembling apparatus according to any one of claims 1 to 6, wherein: the sealing ring assembling device is used for assembling the sealing ring to the rotor shaft;
the outer side wall of the rotor shaft is provided with an annular groove;
the device further comprises: three catch plates (7);
three positioning holes are formed in the side wall of the lower end of the shell at an angle of 120 degrees;
the clamping plate penetrates through the positioning hole and is inserted into the annular groove of the rotor wing shaft to fix the device and the rotor wing shaft.
8. A seal ring assembling apparatus according to claim 7, wherein: the device further comprises: three limiting sleeves (6);
a convex shoulder is arranged on the outer side wall of the lower end of the shell; the clamping plate is provided with a limiting hole; the limiting sleeve is inserted into the limiting hole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021203556965 | 2021-02-09 | ||
| CN202120355696 | 2021-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113021244A true CN113021244A (en) | 2021-06-25 |
Family
ID=76465295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110228936.XA Pending CN113021244A (en) | 2021-02-09 | 2021-03-02 | Sealing ring assembling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113021244A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010047141A1 (en) * | 2010-09-30 | 2012-04-05 | Schaeffler Technologies Gmbh & Co. Kg | adapter ring |
| CN202271354U (en) * | 2011-10-26 | 2012-06-13 | 王文刚 | Sealing element loading device for polished rod sealer |
| CN103786043A (en) * | 2014-02-14 | 2014-05-14 | 浙江吉利控股集团有限公司 | Internal expanding positioning and clamping device |
| CN104015159A (en) * | 2014-06-18 | 2014-09-03 | 中国人民解放军第五七二一工厂 | Special tool for disassembling bearing bushing in blind hole |
| CN206035422U (en) * | 2016-08-26 | 2017-03-22 | 中国石油化工股份有限公司 | Instrument is changed to gate sealing member |
| CN108145410A (en) * | 2017-12-28 | 2018-06-12 | 潍柴动力股份有限公司 | A kind of sealing coil installing device and installation method |
| CN209394615U (en) * | 2018-12-14 | 2019-09-17 | 苏州市燃气设备阀门制造有限公司 | Band gas is changed the shuttle valve tooling |
| CN209999111U (en) * | 2019-05-29 | 2020-01-31 | 安徽巨一自动化装备有限公司 | simple multifunctional hand-operated device |
-
2021
- 2021-03-02 CN CN202110228936.XA patent/CN113021244A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010047141A1 (en) * | 2010-09-30 | 2012-04-05 | Schaeffler Technologies Gmbh & Co. Kg | adapter ring |
| CN202271354U (en) * | 2011-10-26 | 2012-06-13 | 王文刚 | Sealing element loading device for polished rod sealer |
| CN103786043A (en) * | 2014-02-14 | 2014-05-14 | 浙江吉利控股集团有限公司 | Internal expanding positioning and clamping device |
| CN104015159A (en) * | 2014-06-18 | 2014-09-03 | 中国人民解放军第五七二一工厂 | Special tool for disassembling bearing bushing in blind hole |
| CN206035422U (en) * | 2016-08-26 | 2017-03-22 | 中国石油化工股份有限公司 | Instrument is changed to gate sealing member |
| CN108145410A (en) * | 2017-12-28 | 2018-06-12 | 潍柴动力股份有限公司 | A kind of sealing coil installing device and installation method |
| CN209394615U (en) * | 2018-12-14 | 2019-09-17 | 苏州市燃气设备阀门制造有限公司 | Band gas is changed the shuttle valve tooling |
| CN209999111U (en) * | 2019-05-29 | 2020-01-31 | 安徽巨一自动化装备有限公司 | simple multifunctional hand-operated device |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210625 |