CN112355976A - Dismounting device for fasteners in holes - Google Patents
Dismounting device for fasteners in holes Download PDFInfo
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- CN112355976A CN112355976A CN202011353633.2A CN202011353633A CN112355976A CN 112355976 A CN112355976 A CN 112355976A CN 202011353633 A CN202011353633 A CN 202011353633A CN 112355976 A CN112355976 A CN 112355976A
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- disc
- hole
- dismounting
- shaped part
- ring
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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
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The invention relates to a device for dismounting a fastener in a hole, comprising: the main body comprises a columnar part and a disc-shaped part fixedly connected to one end of the columnar part; a plurality of clamping pieces are fixed on the periphery of the disc-shaped part at intervals, each clamping piece is provided with a claw part used for clamping a fastener to be disassembled and assembled, and the claw part extends out of the disc-shaped part; and, an auxiliary assembly for securing stability of the main body, the auxiliary assembly including: the outside support of column portion is located to the cover to and rotationally install a plurality of planet wheels on the support, the wheel face of planet wheel is on a parallel with the quotation of disc portion, and the planet wheel is tangent with the inner wall of column portion and hole simultaneously. The dismounting device can be used for dismounting and mounting fasteners in narrow spaces such as holes, so that the fasteners in special use environments can be dismounted and mounted easily and conveniently, and the fastening performance of fastener mounting and the dismounting convenience are guaranteed.
Description
Technical Field
The invention belongs to the technical field of disassembling and assembling tool equipment, and particularly relates to a disassembling and assembling device for a fastener in a hole.
Background
At present, fasteners such as nuts or bolts are usually fastened and disassembled by using crescent wrenches, but conventional tools such as crescent wrenches are only suitable for working conditions without obstacles around the bolts or nuts to be disassembled and assembled, such as ring nuts exposed on an outer shaft.
When the bolt and the nut are installed in a narrow space, for example, in a hole, due to the limitation of the property and the use environment of the bolt or the nut, there is a problem that the bolt and the nut cannot be disassembled by using a conventional tool, and the fastening performance of the installation and the convenience of the disassembly cannot be ensured.
For example, when the main shaft is mounted and dismounted for the aircraft tire dynamic simulation testing machine, the main shaft is a hollow long shaft, and the bolt mounted in the hollow hole of the main shaft cannot be dismounted and mounted by using a conventional tool, so that the mounting and maintenance work of the testing equipment in daily use is complex, long in time consumption and high in cost.
Disclosure of Invention
Aiming at the defects in the related art, the invention provides the dismounting device for the fastener in the hole, so that the fastener can be dismounted and mounted easily and conveniently in narrow spaces such as the hole.
The invention provides a dismounting device for a fastener in a hole, which comprises:
the main body comprises a columnar part and a disc-shaped part fixedly connected to one end of the columnar part;
the clamping pieces are fixed on the periphery of the disc-shaped part at intervals, each clamping piece is provided with a claw part used for clamping a fastener to be disassembled and assembled, and the claw part extends out of the disc-shaped part; and
an auxiliary assembly for securing stability of the main body, comprising:
the bracket is sleeved outside the columnar part; and
the planet wheels are rotatably arranged on the support, the wheel surfaces of the planet wheels are parallel to the disc surface of the disc-shaped part, and the planet wheels are simultaneously tangent to the cylindrical part and the inner wall of the hole.
Optionally, the support includes a first ring and a second ring sleeved outside the cylindrical portion, the first ring and the second ring are arranged in parallel, and the centers of the plurality of planet wheels are fixedly arranged between the first ring and the second ring at intervals.
Optionally, the peripheral edge of the disc-shaped part is provided with a plurality of grooves towards the center; the clamping piece is detachably and fixedly arranged at the groove.
Optionally, the engaging member includes a fixing portion, which is provided with a bolt hole and fixed to the bottom of the groove 13 by a bolt.
Optionally, the width of the fixing portion is greater than the width of the claw portion.
Optionally, the claw portion comprises a first claw portion and a second claw portion at two ends of the fixing portion, and the size of the second claw portion is different from that of the first claw portion so as to match fasteners of different sizes.
Optionally, the torque-applying mechanism further comprises a force-applying rod, a through hole is formed in the top end of the columnar portion, and two ends of the force-applying rod penetrate through the through hole to apply torque to the main body.
Optionally, the column part is a cylinder with a hollow inner part; the columnar part and the disc-shaped part are integrally formed in a welding mode.
Optionally, the locking device further comprises an auxiliary locking screw, and two ends of the auxiliary locking screw penetrate out of the columnar part and are in contact with the inner wall of the hole to perform auxiliary locking.
Optionally, the outer surface of the auxiliary locking screw is provided with a thread, and the auxiliary locking screw is fixedly locked with the columnar part through a locking nut; and the two ends of the auxiliary locking screw are in threaded connection with round-head locking nuts.
Compared with the prior art, the invention has the following beneficial effects:
(1) the dismounting device provided by the invention is provided with the columnar main body and the clamping piece for clamping the fastening piece, and can be used in the dismounting and mounting processes of the fastening piece in narrow spaces such as a hole, so that the fastening piece in a special use environment can be easily and conveniently dismounted and mounted, and the mounting tightness and dismounting convenience of the fastening piece are ensured.
(2) According to the dismounting device provided by the invention, the auxiliary assembly is arranged, and the planet wheel is tangent to the columnar part and the inner wall of the operation hole at the same time, so that the main body can be ensured to be stable and not to topple over when working and rotating, and the clamping piece can be stably clamped with the fastening piece all the time; even if a large torque is applied to the main body, the claw portion of the engaging piece can be tightly fitted to the end portion of the fastener, and the fastener can be fastened and detached efficiently.
(3) The dismounting device provided by the invention can replace the tool according to working conditions of different diameters and depths, and has strong universality; simple structure, portability and low cost.
(4) The dismounting device provided by the invention can be used for assisting in reinforcement when the installed fastener cannot maintain the locking state temporarily by arranging the auxiliary locking screw.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a front view of one embodiment of the mounting and dismounting device of the present invention;
FIG. 2 is a top view of the disassembly and assembly device of FIG. 1;
FIG. 3 is a front view of the main body of one embodiment of the mounting and dismounting device of the present invention;
FIG. 4 is a top view of the body of FIG. 3;
FIG. 5 is a schematic view of a fastener according to an embodiment of the present invention;
FIG. 6 is a front view of an auxiliary assembly of an embodiment of the assembly and disassembly apparatus of the present invention;
FIG. 7 is a top view of the auxiliary assembly of FIG. 6;
FIG. 8 is a front view of another embodiment of the mounting and dismounting device of the present invention;
FIG. 9 is a top view of the removal device of FIG. 8;
fig. 10 is a schematic end view of a bolt to be disassembled.
In the figure:
1. a main body; 11. a columnar portion; 12. a disk-shaped portion; 13. a groove; 2. a fastener; 21. a claw portion; 211. a first claw portion; 212. a second claw portion; 22. a fixed part; 3. an auxiliary component; 31. a support; 311. a first circular ring; 312. a second circular ring; 32. a planet wheel; 4. a force application rod; 5. auxiliary locking screw rods; 6. locking the nut; 7. a round head lock nut;
10. a bolt to be disassembled; 101. and (6) disassembling and assembling the groove.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the shapes shown in the drawings referred to in the following description are conceptual or schematic illustrations for describing preferred shapes, and the sizes and proportions shown do not necessarily match actual proportions. In other words, the invention is not limited to the scale shown in the figures.
In the description of the present invention, it is to be understood that the terms "center", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In one exemplary embodiment of the invention, as shown in fig. 1 and 2, a device for removing a fastener from a hole comprises: a main body 1, wherein the main body 1 comprises a columnar part 11 and a disc-shaped part 12 fixedly connected with one end of the columnar part 11 (see fig. 3 and 4); a plurality of engaging pieces 2, the plurality of engaging pieces 2 being fixed to the outer periphery of the disc-shaped portion 12 at intervals, each engaging piece 2 having a claw portion 21 for engaging a fastener to be attached and detached, and the claw portion 21 protruding out of the disc-shaped portion 12; and an auxiliary assembly 3 for securing stability of the main body 1, as shown in fig. 6 and 7, the auxiliary assembly 3 including: a support 31 sleeved outside the columnar part 11, and a plurality of planet wheels 32 rotatably mounted on the support 31, wherein the wheel surfaces of the planet wheels 32 are parallel to the disc surface of the disc part 12, and the planet wheels 32 are simultaneously tangent to the columnar part 11 and the inner wall of the hole.
The dismounting device provided by the embodiment of the invention is developed in the process of mounting and dismounting the main shaft of the dynamic simulation testing machine matched with the aircraft tire, and can be expanded to be used in the process of dismounting and mounting fasteners in narrow spaces such as holes, so that the fasteners in special use environments can be easily and conveniently dismounted and mounted, and the mounting tightness and dismounting convenience of the fasteners are ensured. In addition, the planet wheel is tangent to the inner walls of the columnar part and the operation hole, so that the main body can be kept stable and cannot topple over when working and rotating, and the clamping piece can be stably clamped with the fastening piece all the time; even if a large torque is applied to the main body, the claw portion of the engaging piece can be tightly fitted to the end portion of the fastener, and the fastener can be fastened and detached efficiently. It should be noted that, for the hole with a horizontal opening, the dismounting device can be used horizontally, that is, the axis of the columnar part is horizontally placed to dismount the fastener.
The dismounting device provided by the above exemplary embodiment can replace the tools with different sizes according to the use environment. Specifically, the main body 1 and the planet wheel 32 with different sizes can be replaced according to working conditions with different diameters and depths; the number of the planet wheels 32 can also be selected according to actual conditions and requirements, and can be three, four or five, for example; the engaging pieces 2 are arranged according to the size of the fastener to be attached and detached, for example, the number of the engaging pieces 2 may be three, four, or five, and the size of the claw portion 21 of the engaging piece 2 matches the size of the fastener to be attached and detached.
For example, when the special bolt 10 of the form shown in fig. 10 is removed by using the attaching and detaching device, the end face of the bolt 10 has an attaching and detaching groove 101, and the claw portion 21 of the engaging piece 2 is engaged with the attaching and detaching groove 101 to apply torque to attach and detach the fastening piece. However, it is understood that the dismounting device can also dismount other types of fasteners, and a person skilled in the art can replace the clamping piece with the claw part in different types according to the type of the fastener to be dismounted, so long as the clamping piece can be clamped with the fastener, the dismounting of the fastener can be realized.
As an alternative embodiment of the carrier 31, as shown in fig. 6, the carrier 31 includes a first circular ring 311 and a second circular ring 312 sleeved outside the cylindrical portion 11, the first circular ring 311 and the second circular ring 312 are arranged in parallel, and the centers of the plurality of planetary gears 32 are fixedly arranged between the first circular ring 311 and the second circular ring 312 at intervals.
As an alternative embodiment of the engaging member 2 fixed to the disc portion 12, as shown in fig. 4, the disc portion 12 is provided with a plurality of grooves 13 along the peripheral edge thereof; the engaging member 2 is detachably and fixedly mounted at the groove 13.
Further, the bottom of the groove 13 is provided with a threaded hole, the engaging member 2 includes a fixing portion 22 (see fig. 5), and the fixing portion 22 is provided with a bolt hole and fixed to the groove 13 by a bolt, so as to ensure the mounting stability and sufficient strength of the engaging member 2.
As an alternative embodiment, as shown in fig. 5, the width of the fixing portion 22 is larger than the width of the claw portion 21. The fixing portion 22 is designed to be widened, so that strength reduction caused by the fact that a threaded hole is formed is avoided, and the phenomenon that the torque is damaged due to overlarge torque in the using process is avoided.
As an alternative embodiment, as shown in fig. 5, the claw portion 21 includes a first claw portion 211 and a second claw portion 212 at both ends of the fixing portion 22, and the first claw portion 211 and the second claw portion 212 may have different sizes, so that they can be used with fasteners of different sizes. For example, the length of the second claw part 212 may be greater than that of the first claw part 211, the first claw part 211 is used for dismounting a single fastener, the second claw part 212 is used for loosening prevention of double fasteners, and only two ends of the clamping piece need to be replaced during actual use, so that the universality of the dismounting device is improved.
In addition, as shown in fig. 1 and 2, the dismounting device further comprises a force application rod 4, a through hole is opened at the top end of the columnar part 11, and two ends of the force application rod 4 penetrate through the through hole to apply torque to the main body 1. In addition, when the depth of the installation space is larger, the through hole can be used for nesting and lengthening the main body, so that the use under deep working conditions is facilitated.
As an alternative embodiment, the column part 11 and the disk part 12 are formed integrally by welding, so as to ensure the reliability of connection and reduce the cost.
As an alternative embodiment, the column portion 11 is a cylinder with a hollow interior, so as to reduce the weight of the dismounting device, reduce the cost, and facilitate carrying and use.
As an alternative embodiment, as shown in fig. 8 and 9, the dismounting device further includes an auxiliary locking screw 5, and both ends of the auxiliary locking screw 5 penetrate through the columnar part 11 and contact with the inner wall of the hole. When the installed fastener cannot maintain the locked state temporarily, auxiliary reinforcement can be performed using an auxiliary locking screw.
Further, the outer surface of the auxiliary locking screw 5 is provided with threads, and the auxiliary locking screw 5 is fixedly locked with the columnar part 11 through a locking nut 6; the two ends of the auxiliary locking screw rod 5 are in threaded connection with the round-head locking nuts 7, and the round-head locking nuts 7 are adjusted on the auxiliary locking screw rod 5 to be in contact with the inner wall of the hole under the operation condition so as to perform auxiliary locking.
Alternatively, as shown in fig. 9, two auxiliary locking screws 5 are provided, and the two auxiliary locking screws 5 are arranged at one end of the column portion at 90 degrees therebetween.
Finally, it should be noted that: the embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. A device for removing fasteners from holes, comprising:
the main body comprises a columnar part and a disc-shaped part fixedly connected to one end of the columnar part;
the clamping pieces are fixed on the periphery of the disc-shaped part at intervals, each clamping piece is provided with a claw part used for clamping a fastener to be disassembled and assembled, and the claw part extends out of the disc-shaped part; and
an auxiliary assembly for securing stability of the main body, comprising:
the bracket is sleeved outside the columnar part; and
the planet wheels are rotatably arranged on the support, the wheel surfaces of the planet wheels are parallel to the disc surface of the disc-shaped part, and the planet wheels are simultaneously tangent to the cylindrical part and the inner wall of the hole.
2. The dismounting device according to claim 1, wherein the holder includes a first ring and a second ring that are fitted around the outside of the cylindrical portion, the first ring and the second ring are disposed in parallel, and the centers of the plurality of planetary gears are fixedly disposed between the first ring and the second ring at intervals.
3. The dismounting device according to claim 1, wherein a plurality of grooves are formed in the peripheral edge of the disc-shaped part towards the center; the clamping piece is detachably and fixedly arranged at the groove.
4. The device as claimed in claim 3, wherein the engaging member comprises a fixing portion, which is provided with a bolt hole and is fixed to the bottom of the recess 13 by a bolt.
5. The attaching and detaching device according to claim 4, wherein a width of the fixing portion is larger than a width of the claw portion.
6. The device of claim 1, wherein the jaws include first and second jaws at opposite ends of the fixed portion, the second jaw being of a different size than the first jaw to accommodate fasteners of different sizes.
7. The dismounting device according to claim 1, further comprising a force application rod, wherein a through hole is formed at the top end of the columnar portion, and two ends of the force application rod penetrate through the through hole to apply torque to the main body.
8. The device according to claim 1, wherein the cylindrical portion is a cylinder with a hollow interior; the columnar part and the disc-shaped part are integrally formed in a welding mode.
9. The dismounting device according to claim 1, further comprising an auxiliary locking screw, wherein two ends of the auxiliary locking screw penetrate through the columnar part and contact with the inner wall of the hole to perform auxiliary locking.
10. The dismounting device according to claim 1, wherein the outer surface of the auxiliary locking screw is provided with threads, and the auxiliary locking screw is fixedly locked with the columnar part through a locking nut; and the two ends of the auxiliary locking screw are in threaded connection with round-head locking nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011353633.2A CN112355976A (en) | 2020-11-27 | 2020-11-27 | Dismounting device for fasteners in holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011353633.2A CN112355976A (en) | 2020-11-27 | 2020-11-27 | Dismounting device for fasteners in holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112355976A true CN112355976A (en) | 2021-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011353633.2A Pending CN112355976A (en) | 2020-11-27 | 2020-11-27 | Dismounting device for fasteners in holes |
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| Country | Link |
|---|---|
| CN (1) | CN112355976A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115026773A (en) * | 2021-03-05 | 2022-09-09 | 景津装备股份有限公司 | Disassembling tool matched with cloth clamping and protecting device of feed hole of series-connection filter plate |
-
2020
- 2020-11-27 CN CN202011353633.2A patent/CN112355976A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115026773A (en) * | 2021-03-05 | 2022-09-09 | 景津装备股份有限公司 | Disassembling tool matched with cloth clamping and protecting device of feed hole of series-connection filter plate |
| CN115026773B (en) * | 2021-03-05 | 2024-03-12 | 景津装备股份有限公司 | Dismounting tool matched with series filter plate feeding Kong Gabu cloth protector |
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