CN111347374A - Electric tool for disassembling micro bearing - Google Patents
Electric tool for disassembling micro bearing Download PDFInfo
- Publication number
- CN111347374A CN111347374A CN202010310935.5A CN202010310935A CN111347374A CN 111347374 A CN111347374 A CN 111347374A CN 202010310935 A CN202010310935 A CN 202010310935A CN 111347374 A CN111347374 A CN 111347374A
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- CN
- China
- Prior art keywords
- electromagnetic
- electromagnetic mechanism
- mechanism shell
- electric tool
- disassembling
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
Abstract
The invention discloses an electric tool for disassembling a miniature bearing, which comprises a transverse arm, wherein a cylindrical mounting rack is fixed on the upper end surface of the transverse arm, the inner wall of the mounting rack is in threaded connection with an electromagnetic mechanism shell, the electromagnetic mechanism shell is provided with a cavity, a proportional electromagnet and an electromagnetic iron core capable of moving up and down are arranged in the cavity, a top rod is fixed at the bottom of the electromagnetic iron core, one end of the top rod, which is far away from the electromagnetic iron core, sequentially penetrates out of the electromagnetic mechanism shell and the transverse arm, a reset spring is fixed between the bottom of the electromagnetic iron core and the electromagnetic mechanism shell, and a plurality of lug type clamping jaws are movably connected onto the transverse arm.
Description
Technical Field
The invention relates to the field of electric tools for disassembling miniature bearings, in particular to an electric tool for disassembling miniature bearings.
Background
At present, a bearing dismounting tool is mainly completed by a puller, and mainly comprises a screw rod transmission type puller, a hydraulic transmission type puller and the like according to a driving form, so that the tool plays a role in lifting weight for dismounting medium and large bearings, and has no power for dismounting miniature and small bearings. Miniature, miniature bearing often uses in the equipment that the structure is complicated, the space is narrow and small, because do not have suitable extracting tool, in motor, electrical apparatus repair and distribution trade, miniature bearing's dismantlement often lets the maintenance personal not be careful. If the dismounting method is improper, the dismounting tool is not selected properly, and the bearing and related accessories are easily damaged. In practice, the conditions of large and small size, labor and time are frequently caused. Due to the large operation difficulty, for the maintenance condition that the miniature and small-sized bearings need to be disassembled, maintenance personnel usually abandon the disassembly of the bearings and select to replace components related to the repaired parts, so that not only is the maintenance cost increased, but also the great waste of resources is caused.
Disclosure of Invention
In view of the technical defects, the invention aims to provide an electric tool for disassembling a micro-bearing, which is suitable for occasions with narrow space, complex structure and insufficient space for installing the traditional puller, does not damage the bearing and related accessories during disassembly, and has the advantages of sensitive action, convenient use, safety and reliability.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides an electric tool for disassembling a miniature bearing, which comprises a cross arm, wherein a cylindrical mounting rack is fixed on the upper end surface of the cross arm, the inner wall of the mounting rack is in threaded connection with an electromagnetic mechanism shell, the electromagnetic mechanism shell is provided with a cavity, a proportional electromagnet and an electromagnetic iron core capable of moving up and down are arranged in the cavity, a top rod is fixed at the bottom of the electromagnetic iron core, one end, far away from the electromagnetic iron core, of the top rod sequentially penetrates out of the electromagnetic mechanism shell and the cross arm, a reset spring is fixedly connected between the bottom of the electromagnetic iron core and the electromagnetic mechanism shell, a plurality of lug type clamping claws which are uniformly distributed in an annular array are movably connected on the cross arm, the annular array, the electromagnetic mechanism shell, the top rod and the electromagnetic iron core are coaxially arranged, and a through hole.
Preferably, fine pitch threads which are mutually matched are arranged on the outer wall of the electromagnetic mechanism shell and the inner wall of the mounting frame.
Preferably, the top end of the electromagnetic mechanism shell is fixedly provided with a manual knob, and the outer wall of the manual knob is provided with an anti-skidding cross-shaped groove.
Preferably, the cross arm is provided with a guide sleeve for limiting the up-and-down sliding direction of the mandril.
Preferably, the connection mode of the ear hanging type clamping jaws and the cross arm is a buckle, and the sizes of the ear hanging type clamping jaws are selected and installed according to requirements.
Preferably, the cross arm is a circular plate or a regular polygonal plate.
Preferably, one end of the ejector rod, which is far away from the electromagnetic iron core, is provided with a tip.
The invention has the beneficial effects that: the device is suitable for occasions with narrow space, complex structure and insufficient space for installing the traditional puller, and the electromagnetic force generated by the proportional electromagnet enables the electromagnetic iron core to push the ejector rod to move towards the direction of the disassembled bearing, so that the lug type clamping jaw and the bearing are pushed to move together, the bearing and related accessories are guaranteed not to be damaged when the bearing is disassembled, and the device is sensitive in operation, convenient to use, safe and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electric tool for disassembling a micro bearing according to an embodiment of the present invention;
FIG. 2a is a front view of an ear-hanging type jaw provided in accordance with an embodiment of the present invention;
figure 2b is a side view of an ear-hung jaw provided by an embodiment of the present invention.
Description of reference numerals:
1. the device comprises a manual knob, 2 an electromagnetic mechanism shell, 3 an electromagnetic iron core, 4 a proportional electromagnet, 5 a reset spring, 6 a distance adjusting thread, 7 a mounting frame, 8 a cross arm, 9 a mandril, 10 a guide sleeve, 11 a lug type clamping jaw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an electric tool for disassembling a miniature bearing comprises a transverse arm 8 with a cylindrical mounting bracket 7 fixed on the upper end surface, wherein the transverse arm 8 is a circular plate or a regular polygonal plate, the inner wall of the mounting bracket 7 is in threaded connection with an electromagnetic mechanism housing 2, the electromagnetic mechanism housing 2 is provided with a cavity, a proportional electromagnet 4 and an electromagnetic iron core 3 capable of moving up and down are arranged in the cavity, a top rod 9 is fixed at the bottom of the electromagnetic iron core 3, an apex is arranged at one end of the top rod 9 far away from the electromagnetic iron core 3, and one end of the top rod 9 far away from the electromagnetic iron core 3 sequentially penetrates out of the electromagnetic mechanism housing 2 and the transverse arm 8;
3 bottoms of electromagnetic core with fixedly connected with reset spring 5 between electromagnetic mechanism shell 2, swing joint has a plurality of to be the hangers formula jack catch 11 of annular array equipartition on the xarm 8, and the design of the hangers formula jack catch 11 of the not unidimensional of multiunit can let this device be applicable to the space narrow and small, the structure is complicated, does not have the multiple occasion of enough space installation tradition puller, the annular array electromagnetic mechanism shell 2 ejector pin 9 and 3 coaxial line 3 settings of electromagnetic core, open at 2 tops of electromagnetic mechanism shell has the through-hole that supplies the wire to pass.
The outer wall of electromagnetic mechanism shell 2 with be equipped with the fine pitch adjustment screw thread 6 of mutual adaptation on the inner wall of mounting bracket 7, it is more accurate convenient during the roll adjustment.
The top of electromagnetic mechanism shell 2 is fixed and is equipped with manual knob 1, be equipped with anti-skidding # -shaped groove on the 1 outer wall of manual knob.
The cross arm 8 is provided with a guide sleeve 10 for limiting the up-and-down sliding direction of the ejector rod 9, and the guide sleeve 10 ensures the moving fluency of the ejector rod 9 and the accuracy of electromagnetic thrust conduction, and ensures the use stability of the tool.
Referring to fig. 2a and 2b, the ear hanging type clamping jaws 11 and the cross arm 8 are connected in a buckling mode, the sizes of the ear hanging type clamping jaws 11 are selected according to requirements, and clamping holes matched with the ear hanging type clamping jaws 11 are formed in the cross arm 8.
The device adopts direct current 24V power supply, is safe and reliable, and is convenient to use
When the electromagnetic mechanism is used, the ear-hanging type clamping jaw 11 with a proper size is selected to be installed on a bearing to be disassembled, the top of the ejector rod 9 is installed in a center hole of a bearing shaft to be disassembled, the manual knob 1 is rotated to adjust the shell 2 of the electromagnetic mechanism, and the ear-hanging type clamping jaw 11 is hung on a cross arm 8 of an electric tool and generates a certain pretightening force; the power supply of the proportional electromagnet 4 is switched on, and the electromagnetic force generated by the proportional electromagnet 4 enables the electromagnet core 3 to push the ejector rod 9 to move towards the direction of the disassembled bearing, so that the lug type clamping claw 11 is pushed to move together with the bearing.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. The utility model provides an electric tool for microminiature bearing dismantles, its characterized in that, includes xarm (8) that the up end is fixed with cylindric mounting bracket (7), the inner wall threaded connection electromagnetic mechanism shell (2) of mounting bracket (7), electromagnetic mechanism shell (2) are equipped with the cavity and be equipped with proportion electro-magnet (4) and electromagnetic core (3) that can move about from top to bottom in the cavity, electromagnetic core (3) bottom is fixed with ejector pin (9), the one end that electromagnetic core (3) were kept away from in ejector pin (9) is worn out outside electromagnetic mechanism shell (2) and xarm (8) in proper order, electromagnetic core (3) bottom with fixedly connected with reset spring (5) between electromagnetic mechanism shell (2), swing joint has a plurality of hangers formula jack catch (11) that are the equipartition of annular array on xarm (8), annular array, The electromagnetic mechanism is characterized in that the electromagnetic mechanism shell (2), the ejector rod (9) and the electromagnetic iron core (3) are arranged in a coaxial line (3), and a through hole for a lead to pass through is formed in the top of the electromagnetic mechanism shell (2).
2. An electric tool for miniature bearing removal as set forth in claim 1 wherein said outer wall of said electromagnetic mechanism housing (2) and said inner wall of said mounting bracket (7) are provided with fine pitch threads (6) adapted to each other.
3. The electric tool for disassembling the miniature bearing according to claim 1, wherein a manual knob (1) is fixedly arranged at the top end of the electromagnetic mechanism housing (2), and an anti-slip # -shaped groove is arranged on the outer wall of the manual knob (1).
4. The electric tool for disassembling the miniature bearing according to claim 1, wherein the cross arm (8) is provided with a guide sleeve (10) for limiting the up-and-down sliding direction of the ejector rod (9).
5. The electric tool for disassembling the miniature bearing as claimed in claim 1, wherein the connection mode of the ear-hanging type claw (11) and the cross arm (8) is a snap, and the size of the ear-hanging type claw (11) is selected according to requirements.
6. A power tool for microminiature bearing removal as set forth in claim 1 wherein said cross arm (8) is a circular plate or a regular polygonal plate.
7. An electric tool for disassembling miniature bearings according to claim 1, wherein the end of the ejector rod (9) far away from the electromagnet core (3) is provided with a tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010310935.5A CN111347374A (en) | 2020-04-20 | 2020-04-20 | Electric tool for disassembling micro bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010310935.5A CN111347374A (en) | 2020-04-20 | 2020-04-20 | Electric tool for disassembling micro bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111347374A true CN111347374A (en) | 2020-06-30 |
Family
ID=71191477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010310935.5A Pending CN111347374A (en) | 2020-04-20 | 2020-04-20 | Electric tool for disassembling micro bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111347374A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112157624A (en) * | 2020-09-15 | 2021-01-01 | 重庆泰山电缆有限公司 | Two-jaw puller, bearing and shaft dismounting structure and dismounting method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007044822A (en) * | 2005-08-10 | 2007-02-22 | Mitsubishi Fuso Truck & Bus Corp | Inner race removing device of bearing |
| CN203197835U (en) * | 2013-04-24 | 2013-09-18 | 湖北鑫荣矿业有限公司 | Small-sized drawing device |
| CN107175618A (en) * | 2017-05-19 | 2017-09-19 | 黄烁 | A kind of provision for disengagement of bearing and axis body |
| CN207465129U (en) * | 2017-11-28 | 2018-06-08 | 唐山东华钢铁企业集团有限公司 | A kind of small-size shaft bears horse |
| CN209954592U (en) * | 2019-03-15 | 2020-01-17 | 吕卫凯 | Large-scale motor coupling dismounting device |
-
2020
- 2020-04-20 CN CN202010310935.5A patent/CN111347374A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007044822A (en) * | 2005-08-10 | 2007-02-22 | Mitsubishi Fuso Truck & Bus Corp | Inner race removing device of bearing |
| CN203197835U (en) * | 2013-04-24 | 2013-09-18 | 湖北鑫荣矿业有限公司 | Small-sized drawing device |
| CN107175618A (en) * | 2017-05-19 | 2017-09-19 | 黄烁 | A kind of provision for disengagement of bearing and axis body |
| CN207465129U (en) * | 2017-11-28 | 2018-06-08 | 唐山东华钢铁企业集团有限公司 | A kind of small-size shaft bears horse |
| CN209954592U (en) * | 2019-03-15 | 2020-01-17 | 吕卫凯 | Large-scale motor coupling dismounting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112157624A (en) * | 2020-09-15 | 2021-01-01 | 重庆泰山电缆有限公司 | Two-jaw puller, bearing and shaft dismounting structure and dismounting method |
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Application publication date: 20200630 |
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| RJ01 | Rejection of invention patent application after publication |