CN220145171U - Closing-in device for joint bearing assembly - Google Patents
Closing-in device for joint bearing assembly Download PDFInfo
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- CN220145171U CN220145171U CN202321515617.8U CN202321515617U CN220145171U CN 220145171 U CN220145171 U CN 220145171U CN 202321515617 U CN202321515617 U CN 202321515617U CN 220145171 U CN220145171 U CN 220145171U
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- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000007704 transition Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 7
- 238000005553 drilling Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model discloses a closing device for joint bearing assembly, and belongs to the technical field of joint bearing assembly. The device comprises a bottom plate and an upper die, wherein a centering assembly and a positioning assembly are arranged on the bottom plate side by side, and the upper die can be sleeved on the centering assembly. The lower end face of the hanging bracket is positioned through the top face of the bottom plate, the original through hole C on the hanging bracket is utilized, the hanging bracket is positioned and installed on the bottom plate through the positioning component, the hanging bracket is prevented from rotating in the closing-in process, the inner wall of the V-shaped groove on the hanging bracket is ensured to be uniformly deformed and smoothly closed, the upper die is positioned through the centering component, and the upper die is coaxial with the bearing hole and the V-shaped groove on the hanging bracket.
Description
Technical Field
The utility model relates to a closing device for joint bearing assembly, and belongs to the technical field of joint bearing assembly.
Background
The hanging bracket is a component for connecting and transmitting force between the aeroengine and the engine body and bears higher loads such as pulling, bending and impact; the hanging bracket assembly consists of a hanging bracket and a joint bearing, the assembled joint bearing needs to be subjected to an axial load test to verify the feasibility of the process, pressure is applied to an outer ring of the joint bearing, the bearing is not pressed out under the specified allowable load, the end face of a clamping ring of the bearing is not allowed to protrude, and an inner ring of the joint bearing needs to be capable of flexibly rotating without blocking.
The Chinese patent document with publication number CN108213910A discloses a closing tool of a joint bearing, which comprises a cutter bar, a retainer, balls and a support; the front end part of the cutter bar is provided with a T-shaped end part; the retainer is sleeved outside the T-shaped end part and connected with the T-shaped end part; the retainer is provided with a ball through hole; the diameter of the ball through holes is smaller than the outer diameter of the balls; the balls are arranged between the retainer and the T-shaped end part; the support is arranged at the bottom of the cutter bar and is coaxial with the cutter bar; the part to be folded is arranged between the T-shaped end part and the support; the surface of the part to be retracted is provided with a V-shaped groove corresponding to the position of the ball; the V-shaped groove comprises a V-shaped groove inner wall and a V-shaped groove outer wall connected with the V-shaped groove inner wall; and the included angle between the inner wall of the V-shaped groove and the normal is smaller than the included angle between the outer wall of the V-shaped groove and the normal. The low-speed rotation of the drilling machine type machine tool is utilized to drive the closing tool to rotate, the closing tool rotates at a constant speed while feeding downwards, so that the closing part of the component containing body deforms uniformly along the circumference, and the quality problems that the inner ring of the bearing is blocked and cannot rotate or the outer ring of the bearing and the part move or rotate due to closing of the joint bearing are solved.
However, when the closing tool is driven by the drilling machine tool to feed downwards and rotate simultaneously, the part to be closed may be driven to rotate, and adverse effects are brought to uniform deformation and smooth closing of the inner wall of the V-shaped groove.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a closing device for assembling a joint bearing.
The utility model is realized by the following technical scheme:
a closing-in device for joint bearing assembly, includes bottom plate and last mould, be equipped with centering subassembly and locating component side by side on the bottom plate, go up the mould and can overlap on the centering subassembly.
The centering component is a long pin shaft, a through hole A is formed in the bottom plate, and one end of the long pin shaft is inserted into the through hole A.
The long pin shaft comprises a plug-in mounting section, a shaft shoulder section and a positioning section which are coaxially arranged, the positioning section is connected with the plug-in mounting section through the shaft shoulder section, and the diameter of the shaft shoulder section is larger than that of the plug-in mounting section and that of the positioning section.
The end face of one end of the shaft shoulder section, which is close to the positioning section, is provided with a part auxiliary supporting step.
The inserting section is in transition fit with the through hole A, and the positioning section is in clearance fit with the upper die.
The positioning assembly comprises two positioning pins which are arranged on the bottom plate side by side.
Two through holes B are formed in the bottom plate, one ends of the two locating pins are inserted into the two through holes B in a one-to-one correspondence mode, and the locating pins are in transition fit with the through holes B.
The upper die comprises a pressing head and a cover plate, wherein positioning holes are coaxially formed in the pressing head, a plurality of spherical holes are uniformly distributed on the end face of one end of the pressing head, steel balls are movably arranged in the spherical holes, the cover plate is connected with one end of the pressing head, provided with the steel balls, of the pressing head through screws, and limiting holes are formed in the cover plate at positions corresponding to the steel balls.
And a clamping hole is formed in the pressure head along the radial direction.
And one end of the pressure head, which is far away from the cover plate, is provided with a bearing hole, and a thrust bearing is arranged in the bearing hole.
The utility model has the beneficial effects that: the lower end face of the hanging bracket is positioned through the top face of the bottom plate, the original through hole C on the hanging bracket is utilized, the hanging bracket is positioned and installed on the bottom plate through the positioning component, the hanging bracket is prevented from rotating in the closing-in process, the inner wall of the V-shaped groove on the hanging bracket is ensured to be uniformly deformed and smoothly closed, the upper die is positioned through the centering component, and the upper die is coaxial with the bearing hole and the V-shaped groove on the hanging bracket.
Drawings
FIG. 1 is a cross-sectional view of a hanger bracket;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic view of a hanging bracket positioned and mounted to a base plate;
FIG. 4 is a schematic view of the upper die of the present utility model;
FIG. 5 is a schematic view of a structure of a long pin of the present utility model;
fig. 6 is a schematic structural view of the cover plate of the present utility model.
In the figure: the device comprises a 1-bottom plate, a 2-long pin shaft, a 20-plug-in section, a 21-shaft shoulder section, a 210-part auxiliary supporting step, a 22-positioning section, a 3-pressure head, a 30-positioning hole, a 31-clamping hole, a 4-cover plate, a 5-positioning pin, a 6-steel ball, a 7-thrust bearing, an 8-screw, a 9-hanging bracket, a 90-V-shaped groove, a 10-joint bearing, a 100-bearing outer ring and a 101-bearing inner ring.
Detailed Description
The technical solution of the present utility model is further described below, but the scope of the claimed utility model is not limited to the above.
As shown in fig. 1 to 6, the closing device for assembling the knuckle bearing comprises a bottom plate 1 and an upper die, wherein a centering assembly and a positioning assembly are arranged on the bottom plate 1 side by side, and the upper die can be sleeved on the centering assembly. When the device is used, the lower end face of the hanging bracket 9 is positioned through the top face of the bottom plate 1, the original through hole C on the hanging bracket 9 is utilized, the hanging bracket 9 is positioned and installed on the bottom plate 1 through the positioning component, the hanging bracket 9 is prevented from rotating in the closing-in process, the inner wall of the V-shaped groove 90 on the hanging bracket 9 is ensured to be uniformly deformed and smoothly closed, the upper die is positioned through the centering component, and the upper die is coaxial with the bearing hole and the V-shaped groove 90 on the hanging bracket 9.
The centering component is a long pin shaft 2, a through hole A is machined in the bottom plate 1, and one end of the long pin shaft 2 is inserted into the through hole A.
The long pin shaft 2 comprises a plug-in mounting section 20, a shaft shoulder section 21 and a positioning section 22 which are coaxially arranged, wherein the positioning section 22 is connected with the plug-in mounting section 20 through the shaft shoulder section 21, and the diameter of the shaft shoulder section 21 is larger than that of the plug-in mounting section 20 and that of the positioning section 22. When in use, the lower end surface of the shaft shoulder section 21 is attached to the upper surface of the bottom plate 1, so that the long pin shaft 2 is ensured to be vertical to the bottom plate 1.
The end face of the shaft shoulder section 21, which is close to the positioning section 22, is provided with a part auxiliary supporting step 210. When the device is used, the closing end face on the hanging bracket 9 is attached to the upper end face of the part auxiliary supporting step 210, and the part auxiliary supporting step 210 is used for forming auxiliary supporting for the hanging bracket 9, so that the hanging bracket 9 can be kept horizontal on one hand, the deformation of the hanging bracket 9 in the closing process can be reduced on the other hand, and the closing quality is ensured.
The plug-in section 20 is in transition fit with the through hole A, and the positioning section 22 is in clearance fit with the upper die. When the steel ball clamping device is used, the plug-in section 20 is used for being connected with the bottom plate 1, the positioning section 22 is in clearance fit with the positioning hole 30 on the pressure head 3, and the pressure head 3 is guided to be coaxial with the bearing hole and the V-shaped groove 90 on the hanging bracket 9 through the positioning section 22, so that the movement track of the steel ball 6 is ensured to be identical with the center of the V-shaped groove 90, the inner wall of the V-shaped groove 90 is ensured to be uniformly stressed, and smooth closing-in is realized.
The positioning assembly comprises two positioning pins 5 mounted side by side on the base plate 1.
Two through holes B are machined in the bottom plate 1, one ends of the two locating pins 5 are inserted into the two through holes B in a one-to-one correspondence mode, and the locating pins 5 are in transition fit with the through holes B. The hanging bracket 9 is originally provided with a plurality of through holes C, so the utility model fully utilizes the structural characteristics of the hanging bracket 9, uses two locating pins 5 to be inserted into two of the through holes C on the hanging bracket 9, and the locating pins 5 are in clearance fit with the through holes C so as to locate and mount the hanging bracket 9 on the bottom plate 1, prevent the hanging bracket 9 from rotating in the closing-in process, and ensure that the inner wall of the V-shaped groove 90 on the hanging bracket 9 can be uniformly deformed and closed smoothly. The hanging bracket 9 is positioned through the bottom plate 1 and the two positioning pins 5, the stability of the hanging bracket 9 is good, and the hanging bracket is convenient to assemble and disassemble.
The upper die comprises a pressing head 3 and a cover plate 4, positioning holes 30 are coaxially formed in the pressing head 3, 4 spherical holes are uniformly formed in the end face of one end of the pressing head 3, steel balls 6 are movably mounted in the spherical holes, the cover plate 4 is connected with one end of the pressing head 3, provided with the steel balls 6, of the pressing head 3 through screws 8, and limiting holes are formed in the cover plate 4 at positions corresponding to the positions of the steel balls 6. When the steel ball pressing device is used, one end of the pressing head 3 is provided with a threaded hole in threaded connection with the screw 8, the steel ball 6 partially extends out of the cover plate 4, the steel ball 6 is limited through the cover plate 4, and the steel ball 6 is prevented from falling off in a non-working state.
The ram 3 is provided with a clamping hole 31 in the radial direction. When the hanging bracket 9 is closed, the rod piece can be inserted into the clamping hole 31, the pressing head 3 can be conveniently rotated relative to the hanging bracket 9 through the rod piece, so that the inner wall of the V-shaped groove 90 is uniformly deformed, and the closing is realized.
And a bearing hole is formed in one end, far away from the cover plate 4, of the pressure head 3, and a thrust bearing 7 is arranged in the bearing hole. Friction force when the pressure head 3 rotates under pressure is reduced by the thrust bearing 7.
The utility model relates to a closing device for assembling a joint bearing, which has the following working principle:
the outer ring 100 of the knuckle bearing 10 is arranged in the bearing hole on the hanging bracket 9, and the symmetrical and uniform allowance of the two sides of the outer ring 100 is ensured. The bearing holes on the hanging bracket 9 are aligned with the long pin shafts 2, the original two through holes C on the hanging bracket 9 are aligned with the two positioning pins 5 on the bottom plate 1, then the hanging bracket 9 is pressed down, the lower end face of the hanging bracket 9 is attached to the top face of the bottom plate 1, the closing end face of the hanging bracket 9 is attached to the upper end face of the part auxiliary supporting step 210, and therefore the hanging bracket 9 is horizontally positioned and installed on the bottom plate 1. The pressing head 3 is sleeved on the long pin shaft 2, and one end provided with the steel ball 6 is downwards. The bottom plate 1 of the closing-in device is installed and fixed on an operation platform of a hydraulic machine, a certain pressure is applied to the thrust bearing 7 through the hydraulic machine, then the pressure head 3 is rotated, the steel balls 6 roll in the V-shaped grooves 90, and the inner walls of the V-shaped grooves 90 are extruded, so that the outer ring 100 of the bearing is deformed and contracted and fixed.
After the V-shaped groove 90 at one end of the hanging bracket 9 completes the closing-up, the hydraulic machine executing piece is moved upwards, the pressure head 3 and the hanging bracket 9 are taken out in sequence, then the hanging bracket 9 is turned over, the process is repeated, the V-shaped groove 90 at the other end of the hanging bracket 9 is closed up, and therefore the bearing outer ring 100 is fixed in a bearing hole on the hanging bracket 9. The bearing inner ring 101 of the knuckle bearing 10 is installed in the bearing outer ring 100, so that the knuckle bearing can flexibly rotate without the phenomenon of stagnation.
Claims (10)
1. A binding off device for joint bearing assembly, its characterized in that: the automatic centering device comprises a bottom plate (1) and an upper die, wherein a centering assembly and a positioning assembly are arranged on the bottom plate (1) side by side, and the upper die can be sleeved on the centering assembly.
2. The necking-in apparatus for a spherical plain bearing assembly of claim 1 wherein: the centering assembly is a long pin shaft (2), a through hole A is formed in the bottom plate (1), and one end of the long pin shaft (2) is inserted into the through hole A.
3. The necking-in apparatus for a spherical plain bearing assembly in accordance with claim 2 wherein: the long pin shaft (2) comprises a plug-in mounting section (20), a shaft shoulder section (21) and a positioning section (22) which are coaxially arranged, wherein the positioning section (22) is connected with the plug-in mounting section (20) through the shaft shoulder section (21), and the diameter of the shaft shoulder section (21) is larger than that of the plug-in mounting section (20) and that of the positioning section (22).
4. A necking apparatus for a spherical plain bearing assembly in accordance with claim 3 wherein: the end face, close to the positioning section (22), of the shaft shoulder section (21) is provided with a part auxiliary supporting step (210).
5. A necking apparatus for a spherical plain bearing assembly in accordance with claim 3 wherein: the inserting section (20) is in transition fit with the through hole A; the positioning section (22) is in clearance fit with the upper die.
6. The necking-in apparatus for a spherical plain bearing assembly of claim 1 wherein: the positioning component comprises two positioning pins (5) which are arranged on the bottom plate (1) side by side.
7. The necking apparatus for a spherical plain bearing assembly of claim 6 wherein: two through holes B are formed in the bottom plate (1), one ends of the two locating pins (5) are inserted into the two through holes B in a one-to-one correspondence mode, and the locating pins (5) are in transition fit with the through holes B.
8. The necking-in apparatus for a spherical plain bearing assembly of claim 1 wherein: the upper die comprises a pressing head (3) and a cover plate (4), positioning holes (30) are coaxially formed in the pressing head (3), a plurality of spherical holes are uniformly formed in the end face of one end of the pressing head (3), steel balls (6) are movably arranged in the spherical holes, the cover plate (4) is connected with one end, provided with the steel balls (6), of the pressing head (3) through screws (8), and limiting holes are formed in the positions, corresponding to the steel balls (6), of the cover plate (4).
9. The necking-in apparatus for a spherical plain bearing assembly of claim 8 wherein: the pressure head (3) is provided with a clamping hole (31) along the radial direction.
10. The necking-in apparatus for a spherical plain bearing assembly of claim 8 wherein: one end of the pressure head (3) far away from the cover plate (4) is provided with a bearing hole, and a thrust bearing (7) is arranged in the bearing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321515617.8U CN220145171U (en) | 2023-06-14 | 2023-06-14 | Closing-in device for joint bearing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321515617.8U CN220145171U (en) | 2023-06-14 | 2023-06-14 | Closing-in device for joint bearing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220145171U true CN220145171U (en) | 2023-12-08 |
Family
ID=89020610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321515617.8U Active CN220145171U (en) | 2023-06-14 | 2023-06-14 | Closing-in device for joint bearing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220145171U (en) |
-
2023
- 2023-06-14 CN CN202321515617.8U patent/CN220145171U/en active Active
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