CN216264434U - Floating press-fitting mechanism of shaft seal assembly - Google Patents
Floating press-fitting mechanism of shaft seal assembly Download PDFInfo
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- CN216264434U CN216264434U CN202122696890.2U CN202122696890U CN216264434U CN 216264434 U CN216264434 U CN 216264434U CN 202122696890 U CN202122696890 U CN 202122696890U CN 216264434 U CN216264434 U CN 216264434U
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Abstract
The utility model discloses a floating press-mounting mechanism of a shaft seal assembly, wherein the shaft seal assembly comprises an air seal plate and a shaft seal arranged in the air seal plate, the floating press-mounting mechanism comprises a mounting seat used for being connected with press-mounting equipment, and the floating press-mounting mechanism is characterized in that: the movable shaft is mounted on the mounting seat, a press-mounting head is movably sleeved at the lower end of the movable shaft, the bottom of the press-mounting head is used for mounting a shaft seal assembly, the bottom end of the movable shaft is located in the press-mounting head, a floating spring is arranged between the press-mounting head and the mounting seat, a first sliding groove is axially arranged on the movable shaft, a first mounting hole matched with the first sliding groove is formed in the press-mounting head, and the press-mounting head is mounted on the movable shaft through the first mounting hole and the first sliding groove by penetrating through a first pin shaft. The utility model provides a floating press-fitting mechanism of a shaft seal assembly, which is simple in structure and avoids a gas seal plate from being damaged by pressure during press-fitting through floating press-fitting.
Description
Technical Field
The utility model relates to the technical field of turbochargers, in particular to a floating press-fitting mechanism of a shaft seal assembly.
Background
With the technological progress and economic development, the turbocharger is more and more widely applied to engineering, and when the turbocharger is manufactured and assembled, the shaft seal and the air seal plate are usually preassembled to form a shaft seal assembly, and then the shaft seal and the air seal plate assembly are pressed on an intermediate body of the turbocharger.
However, because the shaft seal is in interference fit with the shaft body, the shaft seal press mounting always adopts a strong pressing mode, the press mounting force is applied to the shaft seal to drive the air seal plate to move downwards together, and thus the shaft seal is easily separated from the air seal plate, and the air seal plate is pressed and damaged.
Disclosure of Invention
The floating press-fitting mechanism is simple in structure, and the air seal plate is pressed and damaged when press-fitting is avoided through floating press-fitting.
In order to achieve the above object, the present invention provides the following technical solutions.
The unsteady pressure equipment mechanism of bearing seal subassembly, bearing seal subassembly include the gas shrouding and set up the bearing seal in the gas shrouding, and unsteady pressure equipment mechanism is including the mount pad that is used for being connected with pressure equipment, its characterized in that: the movable shaft is mounted on the mounting seat, a press-mounting head is movably sleeved at the lower end of the movable shaft, the bottom of the press-mounting head is used for mounting a shaft seal assembly, the bottom end of the movable shaft is located in the press-mounting head, a floating spring is arranged between the press-mounting head and the mounting seat, a first sliding groove is axially arranged on the movable shaft, a first mounting hole matched with the first sliding groove is formed in the press-mounting head, and the press-mounting head is mounted on the movable shaft through the first mounting hole and the first sliding groove by penetrating through a first pin shaft.
The utility model has the beneficial effects that: the floating press mounting of the utility model is characterized in that a floating spring is arranged, when in press mounting, a shaft seal assembly is firstly preassembled on a press mounting head, then a press mounting device drives a mounting seat to move downwards so as to drive a movable shaft and a pile pressing head to move downwards, so that the periphery of an air seal plate in the shaft seal assembly is assembled with a mounting hole of a midbody of a turbocharger, the air seal plate is in interference fit with the mounting hole, the air seal plate in the shaft seal assembly is firstly rubbed with the inner wall of the mounting hole, the air seal plate is subjected to resistance, the moving speed of the air seal plate and the press mounting head is slowed down, at the moment, the movable shaft compresses the floating spring to move downwards, a speed difference is formed between the movable shaft and the press mounting head, the bottom end of the movable shaft extends out of the press mounting head so as to be abutted against the shaft seal in the shaft seal assembly to drive the assembly, so that the shaft seal and the air seal plate are pressed and mounted downwards together until the press mounting is finished, the structure is simple, and the press mounting head is arranged in a floating way, during press mounting, the air seal plate is pressed and mounted firstly, and then the shaft seal is pressed and mounted, so that the air seal plate is prevented from being damaged by pressure.
As an improvement of the utility model, the movable shaft is also fixedly provided with an installation block, the installation block is provided with a sensor for detecting the position of the press-mounting head, and the press-mounting head is provided with an induction block matched with the sensor.
As an improvement of the utility model, the press-fitting head comprises an upper press head and a lower press head which are fixedly connected, wherein an adsorption hole for positioning the shaft seal air seal plate is formed at the bottom of the lower press head, and an air nozzle communicated with the adsorption hole is arranged on the lower press head.
As an improvement of the utility model, a supporting spring is arranged between the mounting seat and the movable shaft.
As an improvement of the present invention, a second sliding groove is axially formed in the movable shaft, a second mounting hole matched with the second sliding groove is formed in the mounting seat, and the movable shaft is mounted on the mounting seat by passing a second pin through the second mounting hole and the second sliding groove.
As an improvement of the utility model, the bottom of the press-fitting head is provided with a positioning step matched with the shaft seal assembly.
Drawings
Fig. 1 is a schematic view of the press-fitting structure of the present invention fitted to an intermediate body of a turbocharger.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a schematic view of the structure of the movable shaft of the present invention.
Fig. 4 is a schematic view of the press-fitting head of the present invention.
FIG. 5 is a schematic view of the shaft seal assembly of the present invention.
In the figure, 1, a mounting seat; 2. a movable shaft; 2.1, a first chute; 2.2, a second chute; 3. pressing the head; 3.1, an upper pressure head; 3.2, pressing the head; 3.3, an induction block; 3.4, adsorption holes; 3.5, air tap; 4. a floating spring; 5. a first pin shaft; 6. mounting blocks; 6.1, a sensor; 7. a support spring; 8. a second pin shaft; 9. a shaft seal assembly; 9.1, air sealing plates; 9.2, shaft seal; 9.3, a sealing ring; 10. an intermediate.
Detailed Description
The utility model is further explained with reference to the drawings.
Referring to the floating press-fitting mechanism of the shaft seal assembly shown in fig. 1 to 5, the shaft seal assembly 9 includes an air seal plate 9.1 and a shaft seal 9.2 disposed in the air seal plate 9.1, and an O-ring 9.3 is sleeved on an outer periphery of the air seal plate 9.1.
The floating press-fitting mechanism comprises a mounting seat 1 used for being connected with press-fitting equipment, a movable shaft 2 is mounted on the mounting seat 1, a press-fitting head 3 is movably sleeved at the lower end of the movable shaft 2, the bottom of the press-fitting head 3 is used for mounting a shaft seal assembly 9, specifically, the press-fitting head 3 comprises an upper press head 3.1 and a lower press head 3.2, the upper press head 3.1 and the lower press head 3.2 are connected through screw fastening, an adsorption hole 3.4 is formed in the bottom of the lower press head 3.2, an air nozzle 3.5 communicated with the adsorption hole 3.4 is arranged on the lower press head 3.2, air is pumped out of the air nozzle 3.5 through a vacuum generating device, so that a negative pressure is generated at the adsorption hole 3.4, the shaft seal assembly 9 can be adsorbed, the upper press head 3.1 and the lower press head 3.2 are separated through the press-fitting head 3, the adsorption hole 3.4 and the air nozzle 3.5 are conveniently processed and mounted on the lower press head 3.2, and a positioning step matched with the shaft seal assembly 9 is further arranged at the bottom of the lower press head 3.2, when shaft seal subassembly 9 is adsorbed on pressure head 3.2 down, carry on spacingly through location step pair shaft seal subassembly 9 for shaft seal subassembly 9 is difficult for taking place the skew, guarantees at the in-process of pressure equipment, and is more stable, reduces the production of defective products.
Still fixed mounting has installation piece 6 on the loose axle 2, install the sensor 6.1 that is used for detecting the first 3 positions of pressure equipment on the installation piece 6, be equipped with on the pressure equipment head 3 with sensor 6.1 complex response piece 3.3, response piece 3.3 sets up on last pressure head 3.1, and sensor 6.1 is used for detecting the position of response piece 3.3 to judge the position of pressure equipment head 3.
The bottom end of the movable shaft 2 is located in a press-fitting head 3, the bottom end of the movable shaft 2 is used for being matched with a shaft seal 9.2 in a shaft seal assembly 9, a floating spring 4 is arranged between the press-fitting head 3 and the mounting seat 1, a first sliding groove 2.1 is axially arranged on the movable shaft 2, a first mounting hole matched with the first sliding groove 2.1 is formed in the press-fitting head 3, the press-fitting head 3 is mounted on the movable shaft 2 through a first pin shaft 5 penetrating through the first mounting hole and the first sliding groove 2.1, and the first pin shaft 5 can vertically move along the first sliding groove 2.1, so that the press-fitting head 3 can move relative to the movable shaft 2.
According to the floating press mounting of the utility model, through arranging the floating spring 4, when in press mounting, the shaft seal assembly 9 is firstly preassembled on the press mounting head 3, then the press mounting device drives the mounting seat 1 to move downwards, so that the movable shaft 2 and the pile pressing head are driven to move downwards, the periphery of the air seal plate 9.1 in the shaft seal assembly 9 is assembled with the mounting hole of the intermediate 10 of the turbocharger, the air seal plate 9.1 is in interference fit with the mounting hole, the air seal plate 9.1 in the shaft seal assembly 9 is firstly rubbed with the inner wall of the mounting hole, so that the air seal plate 9.1 is subjected to resistance, the moving speed of the air seal plate 9.1 and the press mounting head 3 is slowed down, at the moment, the movable shaft 2 compresses the floating spring 4 to continuously move downwards, a speed difference is formed between the movable shaft 2 and the press mounting head 3, the bottom end of the movable shaft 2 extends out of the press mounting head 3, so that the shaft seal is abutted against the shaft seal 9.2 in the shaft seal assembly 9, so as to drive the shaft seal 9.2 to be assembled, and the air seal plate 9.1 to move downwards together, until the press mounting is completed, the structure is simple, the press mounting head 3 is arranged in a floating mode, so that the air seal plate 9.1 is pressed and mounted firstly, then the shaft seal 9.2 is pressed and mounted, and the air seal plate 9.1 is prevented from being damaged by pressure. And when the distance between the sensing block 3.3 on the press-fitting head 3 and the sensor 6.1 is reduced to a preset value, the press-fitting is finished, at the moment, the press-fitting equipment drives the mounting seat 1 to move upwards, and the floating spring 4 resets to drive the press-fitting head 3 to reset.
As an improvement of the present invention, a supporting spring 7 is disposed between the mounting base 1 and the movable shaft 2, a protrusion is disposed at the top end of the mounting base 1, the supporting spring 7 is sleeved outside the movable shaft 2, one end of the supporting spring 7 abuts against the protrusion, the other end of the supporting spring 7 abuts against the mounting base 1, and after the movable shaft 2 is mounted on the mounting base 1, the supporting spring 7 is disposed to support the movable shaft 2, so that the movable shaft 2 does not move down.
Be equipped with second spout 2.2 along the axial on the loose axle 2, be equipped with on the mount pad 1 with second spout 2.2 complex second mounting hole, pass the second mounting hole through second round pin axle 8 and make with second spout 2.2 loose axle 2 installs on mount pad 1, and second round pin axle 8 can follow second spout 2.2 and reciprocate to make loose axle 2 can remove relative mount pad 1.
After the press fitting is completed, when the press fitting equipment drives the mounting seat 1 to move upwards, the mounting seat 1 compresses the second spring to drive the movable shaft 2 to move upwards, so that the mounting seat 1 is prevented from being in rigid contact with the movable shaft 2, the acting force of the movable shaft 2 separated from the shaft seal assembly 9 is small, and when the movable shaft 2 is prevented from being separated, the shaft seal assembly 9 can be driven to be separated from the intermediate 10, so that the stability of assembly is ensured.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (6)
1. The unsteady pressure equipment mechanism of bearing seal subassembly, bearing seal subassembly include the gas shrouding and set up the bearing seal in the gas shrouding, and unsteady pressure equipment mechanism is including the mount pad that is used for being connected with pressure equipment, its characterized in that: the movable shaft is mounted on the mounting seat, a press-mounting head is movably sleeved at the lower end of the movable shaft, the bottom of the press-mounting head is used for mounting a shaft seal assembly, the bottom end of the movable shaft is located in the press-mounting head, a floating spring is arranged between the press-mounting head and the mounting seat, a first sliding groove is axially arranged on the movable shaft, a first mounting hole matched with the first sliding groove is formed in the press-mounting head, and the press-mounting head is mounted on the movable shaft through the first mounting hole and the first sliding groove by penetrating through a first pin shaft.
2. The floating press-fit mechanism for a shaft seal assembly of claim 1 wherein: still fixed mounting has the installation piece on the loose axle, install the sensor that is used for detecting the pressure equipment head position on the installation piece, the overhead response piece that is equipped with sensor complex of pressure equipment.
3. The floating press-fit mechanism for a shaft seal assembly of claim 1 wherein: the pressure equipment head includes fixed connection's last pressure head and lower pressure head, wherein the bottom of pressure head is formed with the absorption hole that is used for location axle to seal the gas shrouding down, be equipped with the air cock with absorption hole intercommunication down on the pressure head.
4. The floating press-fit mechanism for a shaft seal assembly of claim 1 wherein: and a supporting spring is arranged between the mounting seat and the movable shaft.
5. The floating press-fit mechanism for a shaft seal assembly of claim 4 wherein: the movable shaft is provided with a second sliding groove along the axial direction, the mounting seat is provided with a second mounting hole matched with the second sliding groove, and the movable shaft is arranged on the mounting seat through the second pin shaft penetrating through the second mounting hole and the second sliding groove.
6. The floating press-fit mechanism for a shaft seal assembly of claim 1 wherein: and a positioning step matched with the shaft seal assembly is arranged at the bottom of the press-fitting head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122696890.2U CN216264434U (en) | 2021-11-05 | 2021-11-05 | Floating press-fitting mechanism of shaft seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122696890.2U CN216264434U (en) | 2021-11-05 | 2021-11-05 | Floating press-fitting mechanism of shaft seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216264434U true CN216264434U (en) | 2022-04-12 |
Family
ID=81004929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122696890.2U Active CN216264434U (en) | 2021-11-05 | 2021-11-05 | Floating press-fitting mechanism of shaft seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216264434U (en) |
-
2021
- 2021-11-05 CN CN202122696890.2U patent/CN216264434U/en active Active
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