CN216707337U - Device for disassembling piston with hole in deep blind hole - Google Patents
Device for disassembling piston with hole in deep blind hole Download PDFInfo
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- CN216707337U CN216707337U CN202122900567.2U CN202122900567U CN216707337U CN 216707337 U CN216707337 U CN 216707337U CN 202122900567 U CN202122900567 U CN 202122900567U CN 216707337 U CN216707337 U CN 216707337U
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Abstract
The utility model discloses a device for disassembling a piston with a hole in a deep blind hole, which comprises a disassembling rod, wherein one end of the disassembling rod is provided with a plurality of cam structures along the circumferential direction, the outer side of each cam structure is sleeved with an installation sleeve, a plurality of telescopic pins are arranged on the installation sleeve in a penetrating and sliding manner along the circumferential direction corresponding to the plurality of cam structures, the outer side of the installation sleeve is provided with a plurality of arc-shaped telescopic blocks along the circumferential direction corresponding to the plurality of telescopic pins, one end of each telescopic pin is contacted with the outer edge of the corresponding cam structure, and the other end of each telescopic pin is connected with one side of each arc-shaped telescopic block; the plurality of arc-shaped telescopic blocks form an annular structure, and a rubber ring is sleeved on the outer side of the annular structure; the utility model can effectively avoid damage to the part body, ensures stable and reliable disassembly process when the porous piston is drawn, has simple operation and strong operability, and can effectively improve the disassembly quality and the disassembly efficiency.
Description
Technical Field
The utility model belongs to the technical field of a porous piston dismounting device, and particularly relates to a device for dismounting a porous piston in a deep blind hole.
Background
The aircraft landing gear buffer comprises a high-pressure air chamber and a low-pressure air chamber which are formed by a high-precision deep hole, a piston and the like, the high-pressure air chamber and the low-pressure air chamber are isolated by a rod and a floating piston with a hole, and the outer circle and the inner hole of the floating piston are respectively in sliding fit and sealing with the high-precision deep hole and the rod. When the buffer is assembled, the floating piston is firstly arranged on the rod and then arranged in the deep hole along with the rod; when the buffer is disassembled, the friction force is increased due to the residual air pressure between the two groups of sealing parts, and the floating piston is retained in the deep hole when the rod is taken out; because one end of the deep hole is only provided with a small hole, the deep hole is similar to a blind hole structure, the operation space is narrow, and the floating piston is difficult to take out; because deep hole inner wall and piston all are high accuracy sealed fitting surface, the area of contact of extracting tool such as traditional puller is little, leads to the stress point local damage of piston, barrel, and the mode of impact such as slide hammer, striker causes high accuracy pore wall damage, is difficult to satisfy undercarriage dismantlement decomposition work demand. In order to solve the problems, the utility model discloses a device for disassembling a piston with a hole in a deep blind hole.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a device for disassembling a piston with a hole in a deep blind hole, which realizes the function of stably and quickly disassembling the piston with the hole in the blind hole on the premise of not damaging parts.
The utility model is realized by the following technical scheme:
a device for disassembling a piston with a hole in a deep blind hole comprises a disassembling rod, wherein a plurality of cam structures are arranged at one end of the disassembling rod along the circumferential direction, an installation sleeve is sleeved outside the cam structures, a plurality of telescopic pins are arranged on the installation sleeve in a penetrating and sliding manner along the circumferential direction corresponding to the plurality of cam structures, a plurality of arc-shaped telescopic blocks are arranged outside the installation sleeve along the circumferential direction corresponding to the plurality of telescopic pins, one end of each telescopic pin is in contact with the outer edge of each cam structure, and the other end of each telescopic pin is connected with one side of each arc-shaped telescopic block; the plurality of arc-shaped telescopic blocks form an annular structure, and a rubber ring is sleeved on the outer side of the annular structure.
Through rotating the dismounting rod, and then drive the cam structure of dismounting rod one end and take place to rotate, when the cam structure rotated, and then driven a plurality of telescopic pins and stretch out or a section of thick bamboo is synchronous to retract along the radial synchronization of dismounting rod. When the plurality of telescopic pins synchronously extend out, the plurality of arc-shaped telescopic blocks outside the mounting sleeve are driven to synchronously extend out; when the plurality of telescopic pins retract synchronously, the plurality of arc-shaped telescopic blocks outside the mounting sleeve are driven to retract synchronously. When the porous piston in the blind hole needs to be disassembled and assembled, the disassembling rod is rotated, so that the arc-shaped telescopic block is in a retraction state, and the outer diameters of the installation sleeve and the arc-shaped telescopic block are smaller than the diameter of the inner hole of the porous piston. Then can insert installation cover and arc flexible piece in the hole of porose piston through the dismounting rod to make the arc flexible piece stretch out from the other end of the hole of porose piston, the outside and the porose piston hole cooperation of installation cover this moment. Then rotate the dismounting rod for a plurality of arc flexible pieces stretch out in step, and the external diameter of the flexible piece of arc that stretches out is greater than the hole diameter of porose piston this moment, makes the terminal surface of the flexible piece of arc and the terminal surface butt of porose piston. Then the dismounting rod can be pulled towards the direction far away from the piston with the hole, axial force is applied to the end face of the piston with the hole through the arc-shaped telescopic block, and the piston with the hole is pulled out of the blind hole. Simultaneously, through the outside suit rubber circle at the annular structure that a plurality of arc flexible piece constitute, through the shrink elasticity of rubber circle for a plurality of arc flexible pieces can stretch out in step and synchronous automatic retraction.
In order to better realize the utility model, furthermore, a plurality of gradually-opened arc-shaped grooves with gradually-changed diameters are arranged at one end of the dismounting rod along the circumferential direction to form a cam structure, radial mounting holes are arranged on the mounting sleeve along the circumferential direction corresponding to the plurality of gradually-opened arc-shaped grooves, telescopic pins are slidably arranged in the radial mounting holes, and one ends of the telescopic pins are in contact with the gradually-opened arc surfaces of the gradually-opened arc-shaped grooves.
In order to better realize the utility model, further, the other end of the telescopic pin is provided with an external thread or a connecting boss, and one side of the arc-shaped telescopic block is provided with a threaded hole corresponding to the external thread or a stepped hole corresponding to the connecting boss.
In order to better realize the utility model, a telescopic mounting groove is circumferentially arranged on the outer side surface of the mounting sleeve, the arc-shaped telescopic block is mounted in the telescopic mounting groove, and the depth of the telescopic mounting groove is more than or equal to the thickness of the arc-shaped telescopic block.
In order to better realize the utility model, a rubber ring mounting groove is formed in the outer side surface of the arc-shaped telescopic block along the circumferential direction, and the rubber ring is arranged in the rubber ring mounting groove.
In order to better realize the utility model, an angle limiting pin is further arranged at one end of the dismounting rod, an arc groove is circumferentially arranged on the inner side surface of the mounting sleeve, and one end of the angle limiting pin extends into the arc groove and is in sliding connection with the arc groove.
In order to better implement the utility model, one end of the dismounting rod is further provided with a locking nut in a threaded mode.
In order to better realize the utility model, the other end of the dismounting rod is further provided with a connecting stop block, and a stop block nut for locking the connecting stop block is arranged on one side of the connecting stop block in a threaded manner.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
the utility model changes the contact mode of the traditional dismounting tools such as a puller and the like and piston parts, and the dismounting device drives the arc-shaped telescopic blocks which are circumferentially arranged to synchronously and radially extend out through the matching of the cam structure and the telescopic pin by rotating the dismounting rod so as to form surface contact with the step end face of the inner cavity of the piston part, thereby effectively avoiding the damage to the part body, ensuring the stable and reliable dismounting process when the piston with the hole is pulled, having the advantages of simple operation and strong operability, and effectively improving the dismounting quality and the dismounting efficiency.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the construction of the release lever;
FIG. 3 is a sectional view taken along line A of FIG. 2;
FIG. 4 is a schematic view of the installation of the mounting sleeve;
FIG. 5 is a sectional view taken along line B of FIG. 4;
FIG. 6 is a cross-sectional view taken along line C of FIG. 4;
FIG. 7 is a cross-sectional view taken along line D of FIG. 4;
fig. 8 is a schematic view of arc-shaped telescoping and holed piston cooperation.
Wherein: 1-disassembling the rod; 2, mounting a sleeve; 3-a telescopic pin; 4-arc telescopic block; 5-rubber ring; 6-angle limiting pin; 7-locking the nut; 8-connecting a stop block; 9-a stop nut; 01-cam configuration; 02-a telescopic mounting groove; 03-rubber ring mounting groove.
Detailed Description
Example 1:
the device for disassembling the piston with the hole in the deep blind hole in the embodiment is shown in fig. 1-8, and comprises a disassembling rod 1, wherein a plurality of cam structures 01 are arranged at one end of the disassembling rod 1 along the circumferential direction, an installation sleeve 2 is sleeved outside the cam structures 01, a plurality of telescopic pins 3 are arranged on the installation sleeve 2 in a penetrating and sliding manner along the circumferential direction corresponding to the plurality of cam structures 01, a plurality of arc-shaped telescopic blocks 4 are arranged on the outer side of the installation sleeve 2 along the circumferential direction corresponding to the plurality of telescopic pins 3, one end of each telescopic pin 3 is in contact with the outer edge of the cam structure 01, and the other end of each telescopic pin 3 is connected with one side of each arc-shaped telescopic block 4; the plurality of arc-shaped telescopic blocks 4 form an annular structure, and a rubber ring 5 is sleeved on the outer side of the annular structure.
One end of the dismounting rod 1 is circumferentially provided with a plurality of cam structures 01 with gradually changed diameters, the outer side of each cam structure 01 is sleeved with a mounting sleeve 2, and the mounting sleeves 2 are in clearance fit with the dismounting rod 1. The flexible piece 4 of arc is in the state of contracting at ordinary times, and the diameter of the ring structure that a plurality of flexible pieces 4 of arc constitute and the diameter of installation cover 2 all are less than the hole diameter of porose piston this moment, and then drive installation cover 2 and the flexible piece 4 of arc through dismounting rod 1 and stretch into in the hole of porose piston to make the flexible piece 4 of arc stretch out from the other end of porose piston hole along circumference. Then rotate the dismounting rod 1, and then drive a plurality of cam structures 01 and rotate, and then drive a plurality of flexible round pins 3 along the radial outside extension of dismounting rod 1, and then drive a plurality of flexible pieces 4 of arc along the radial outside extension of dismounting rod 1, the diameter that is in the annular structure that the flexible piece 4 of a plurality of arcs of the state of stretching out constitutes is greater than the hole diameter of porose piston this moment, and then it is spacing to make the terminal surface of the flexible piece 4 of a plurality of arcs and the terminal surface butt that porose piston is close to the inside one side of blind hole. Then the dismounting rod 1 can be pulled towards the outer side of the blind hole, axial force is applied to the end face of the piston with the hole through the end faces of the arc-shaped telescopic blocks 4, and the piston with the hole is pulled out of the blind hole.
When the flexible piece 4 of a plurality of arcs stretches out in step, and then drive rubber circle 5 along the radial outside expansion of disassembling rod 1, through the resilience force effect of rubber circle 5 for the flexible piece 4 of a plurality of arcs keeps stretching out in step or contracts in step, and then guarantees the flexible synchronism of the flexible piece 4 of a plurality of arcs.
Example 2:
this embodiment is further optimized on embodiment 1's basis, as shown in fig. 2 and fig. 3, the one end of disassembling rod 1 sets up the gradually-opening arc wall of a plurality of diameter gradual changes along circumference and constitutes cam structure 01, it is provided with radial mounting hole to correspond a plurality of gradually-opening arc walls along circumference on the installation cover 2, it is provided with telescopic pin 3 to slide in the radial mounting hole, the one end of telescopic pin 3 contacts with the gradually-opening arc surface of gradually-opening arc wall.
The diameters of the involute arc-shaped grooves are gradually increased or decreased along the clockwise direction, so that a plurality of cam structures 01 corresponding to a certain central angle are formed, a plurality of radial mounting holes are formed in the corresponding positions of the mounting sleeve 2 along the number of the corresponding cam structures 01 in the circumferential direction, and the axial lines of the radial mounting holes are perpendicular to the axial line of the dismounting rod 1. The telescopic pin 3 is arranged in the radial mounting hole in a sliding mode, the telescopic pin 3 is in clearance fit with the radial mounting hole, and therefore the telescopic pin 3 can smoothly slide along the radial direction in the radial mounting hole. One end of the telescopic pin 3 extends to the inside of the mounting sleeve 2 and is in contact with the involute arc surface of the corresponding cam structure 01, and the other end of the telescopic pin 3 penetrates through the radial mounting hole to extend to the outside of the mounting sleeve 2 and is connected with one side of the arc-shaped telescopic block 4. Through rotating the dismounting rod 1, the cam structures 01 are driven to rotate, when the involute diameter is increased, the telescopic pin 3 is pushed out outwards, the arc-shaped telescopic blocks 4 are driven to extend outwards along the radial direction, and the expansion of the arc-shaped telescopic blocks 4 is realized.
Furthermore, one end of the dismounting rod 1 is uniformly provided with three gradually-opened arc-shaped grooves with gradually-changed diameters along the circumferential direction to form a cam structure 01, and the mounting sleeve 2 is uniformly provided with three radial mounting holes corresponding to the three gradually-opened arc-shaped grooves along the circumferential direction.
Furthermore, the central angle that the flexible piece 4 of arc corresponds is 60, and three flexible pieces 4 of arc that correspond the central angle and be 60 just constitute a whole ring structure when retracting the state promptly for overall structure is more firm.
Other parts of this embodiment are the same as embodiment 1, and thus are not described again.
Example 3:
the embodiment is further optimized on the basis of the embodiment 1 or 2, as shown in fig. 6, the other end of the telescopic pin 3 is provided with an external thread or a connecting boss, and one side of the arc-shaped telescopic block 4 is provided with a threaded hole corresponding to the external thread or a stepped hole corresponding to the connecting boss. External screw thread and the direct threaded connection of screw hole connect boss and the direct joint of shoulder hole, and then realize the flexible round pin 3 and the flexible 4 of arc be connected, and then realize that flexible round pin 3 drives the flexible 4 synchronous retractility of arc piece.
The rest of this embodiment is the same as embodiment 1 or 2, and therefore, the description thereof is omitted.
Example 4:
the present embodiment is further optimized on the basis of any one of the above embodiments 1 to 3, as shown in fig. 1 and 7, a telescopic installation groove 02 is circumferentially arranged on the outer side surface of the installation sleeve 2, the arc-shaped telescopic block 4 is installed in the telescopic installation groove 02, and the depth of the telescopic installation groove 02 is greater than or equal to the thickness of the arc-shaped telescopic block 4.
When the arc-shaped telescopic block 4 is in a retraction state, because the depth of the telescopic mounting groove 02 is greater than or equal to the thickness of the arc-shaped telescopic block 4, the arc-shaped telescopic block 4 can completely enter the telescopic mounting groove 02, and an inner hole for inserting the piston with the hole cannot be influenced. When the arc-shaped telescopic block 4 is in the extended state, the arc-shaped telescopic block 4 is extended from the telescopic mounting groove 02.
Further, the arc-shaped telescopic block 4 is in clearance fit with the telescopic mounting groove 02, so that the arc-shaped telescopic block 4 can smoothly slide in the telescopic mounting groove 02 without being blocked.
Other parts of this embodiment are the same as any of embodiments 1 to 3, and thus are not described again.
Example 5:
this embodiment is further optimized based on any one of the above embodiments 1 to 4, as shown in fig. 1, a rubber ring mounting groove 03 is circumferentially disposed on the outer side surface of the arc-shaped expansion block 4, and the rubber ring 5 is disposed in the rubber ring mounting groove 03. The rubber circle mounting groove 03 that sets up on the 4 lateral surfaces of each arc flexible piece is the partial arc wire casing of whole annular in fact, and the rubber circle mounting groove 03 on the 4 lateral surfaces of a plurality of arc flexible pieces constitutes whole annular promptly, and rubber circle 5 sets up at whole annular promptly, and then realizes 5 synchronous expansion or the shrink of rubber circle.
Other parts of this embodiment are the same as any of embodiments 1 to 4, and thus are not described again.
Example 6:
this embodiment is further optimized on the basis of any one of the above embodiments 1 to 5, as shown in fig. 1 and 5, one end of the dismounting rod 1 is further provided with an angle limiting pin 6, an arc groove is circumferentially provided on the inner side surface of the mounting sleeve 2, and one end of the angle limiting pin 6 extends into the arc groove and is slidably connected with the arc groove.
The arc groove corresponds certain centre of a circle angle, and when taking place relative rotation between installation cover 2 and dismounting rod 1, angle spacer pin 6 slides along the arc groove, until angle spacer pin 6 slides to the terminal point of arc groove, angle spacer pin 6 can not continue to slide this moment, and then makes and can not continue relative rotation between installation cover 2 and the dismounting rod 1. The central angle degree corresponding to the arc groove is the maximum angle of relative rotation between the mounting sleeve 2 and the dismounting rod 1.
Other parts of this embodiment are the same as any of embodiments 1 to 5, and thus are not described again.
Example 7:
the present embodiment is further optimized on the basis of any one of the above embodiments 1 to 6, as shown in fig. 1, a locking nut 7 is threadedly installed at one end of the dismounting rod 1, and the mounting sleeve 2 is limited by the locking nut 7, so as to prevent the mounting sleeve 2 from falling off from the dismounting rod 1.
Other parts of this embodiment are the same as any of embodiments 1 to 6, and thus are not described again.
Example 8:
this embodiment is further optimized on the basis of any one of the above embodiments 1 to 7, as shown in fig. 1, the other end of the dismounting rod 1 is provided with a connecting stopper 8, and a stopper nut 9 for locking the connecting stopper 8 is threadedly mounted on one side of the connecting stopper 8. The stop block nut 9 is used for axially locking the connecting stop block 8, and the connecting stop block 8 is used for being connected with external drawing equipment or rotating equipment.
Other parts of this embodiment are the same as any of embodiments 1 to 7, and thus are not described again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modifications and equivalent variations of the above embodiment according to the technical spirit of the present invention are within the scope of the present invention.
Claims (8)
1. The device for disassembling the piston with the hole in the deep blind hole comprises a disassembling rod (1) and is characterized in that one end of the disassembling rod (1) is provided with a plurality of cam structures (01) along the circumferential direction, an installing sleeve (2) is sleeved on the outer side of each cam structure (01), a plurality of telescopic pins (3) are arranged on the installing sleeve (2) in a penetrating and sliding mode along the circumferential direction corresponding to the cam structures (01), a plurality of arc-shaped telescopic blocks (4) are arranged on the outer side of the installing sleeve (2) along the circumferential direction corresponding to the plurality of telescopic pins (3), one end of each telescopic pin (3) is in contact with the outer edge of each cam structure (01), and the other end of each telescopic pin (3) is connected with one side of each arc-shaped telescopic block (4); the arc-shaped telescopic blocks (4) form an annular structure, and a rubber ring (5) is sleeved on the outer side of the annular structure.
2. The device for disassembling the piston with the hole in the deep blind hole according to claim 1 is characterized in that a plurality of gradually-opened arc-shaped grooves with gradually-changed diameters are formed in one end of the disassembling rod (1) along the circumferential direction to form a cam structure (01), radial mounting holes are formed in the mounting sleeve (2) along the circumferential direction corresponding to the plurality of gradually-opened arc-shaped grooves, a telescopic pin (3) is slidably arranged in the radial mounting holes, and one end of the telescopic pin (3) is in contact with the gradually-opened arc-shaped surface of the gradually-opened arc-shaped groove.
3. The device for disassembling the piston with the hole in the deep blind hole is characterized in that the other end of the telescopic pin (3) is provided with an external thread or a connecting boss, and one side of the arc-shaped telescopic block (4) is provided with a threaded hole corresponding to the external thread or a stepped hole corresponding to the connecting boss.
4. The device for disassembling the piston with the hole in the deep blind hole according to any one of claims 1 to 3 is characterized in that a telescopic mounting groove (02) is formed in the outer side surface of the mounting sleeve (2) along the circumferential direction, the arc-shaped telescopic block (4) is mounted in the telescopic mounting groove (02), and the depth of the telescopic mounting groove (02) is greater than or equal to the thickness of the arc-shaped telescopic block (4).
5. The device for disassembling the piston with the hole in the deep blind hole is characterized in that a rubber ring installation groove (03) is formed in the outer side face of the arc-shaped telescopic block (4) along the circumferential direction, and the rubber ring (5) is arranged in the rubber ring installation groove (03).
6. A device for disassembling a piston with a hole in a deep blind hole according to any one of claims 1-3, characterized in that one end of the disassembling rod (1) is further provided with an angle limiting pin (6), the inner side surface of the mounting sleeve (2) is circumferentially provided with an arc groove, and one end of the angle limiting pin (6) extends into and is slidably connected with the arc groove.
7. A device for disassembling a piston with a hole in a deep blind hole according to claim 6, characterized in that one end of the disassembling rod (1) is provided with a locking nut (7) in a threaded manner.
8. A device for disassembling a piston with a hole in a deep blind hole according to any one of claims 1-3, characterized in that the other end of the disassembling rod (1) is provided with a connecting stop block (8), and one side of the connecting stop block (8) is provided with a stop block nut (9) for locking the connecting stop block (8) in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122900567.2U CN216707337U (en) | 2021-11-24 | 2021-11-24 | Device for disassembling piston with hole in deep blind hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122900567.2U CN216707337U (en) | 2021-11-24 | 2021-11-24 | Device for disassembling piston with hole in deep blind hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216707337U true CN216707337U (en) | 2022-06-10 |
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ID=81880973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122900567.2U Active CN216707337U (en) | 2021-11-24 | 2021-11-24 | Device for disassembling piston with hole in deep blind hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216707337U (en) |
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2021
- 2021-11-24 CN CN202122900567.2U patent/CN216707337U/en active Active
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