CN214446032U - Puller device for disassembling compact motor bearing - Google Patents
Puller device for disassembling compact motor bearing Download PDFInfo
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- CN214446032U CN214446032U CN202120363949.3U CN202120363949U CN214446032U CN 214446032 U CN214446032 U CN 214446032U CN 202120363949 U CN202120363949 U CN 202120363949U CN 214446032 U CN214446032 U CN 214446032U
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- pull rod
- positioning disc
- motor bearing
- puller
- beams
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Abstract
The utility model discloses a compact motor bearing dismounting puller device, which comprises a puller seat, a mandril and a pull rod, wherein the puller seat comprises a positioning disc with a circular middle part, and the middle part of the positioning disc is connected with the mandril through threads; the positioning disc is vertically and uniformly provided with at least two beams around the side surface of the positioning disc, and the beams and the positioning disc are integrated; a pull rod is arranged on each cross beam in a sliding manner, and the pull rods and the cross beams are screwed and fixed through hexagon socket head cap bolts arranged at the top ends of the pull rods; the inner side surface of the pull rod is provided with a groove, and the groove is used for being clamped with the surface of a motor bearing. The utility model discloses simple structure, whole frock part is small in quantity, light in weight, convenient to use, occupation space is little, uses in the scene of polytypic bearing among the especially suitable compact motor to can adjust, change according to the condition of each part, the flexibility is high.
Description
Technical Field
The utility model relates to an automobile parts assembles technical field, specifically is a compact motor bearing dismantles draws horse device.
Background
The puller device is a common tool in mechanical maintenance and is mainly used for detaching a damaged bearing or coupling from a shaft. During the disassembly process of the motor power system, the special puller device is also often required for the disassembly of the bearing. At present, in the process of disassembling a bearing of a compact motor power system, different types of bearings are different, so that different puller devices are required to be used when the bearings are disassembled in different types. The existing puller is generally an integrated device and is only suitable for a few types of bearings.
The patent "CN 204450409U" discloses an adjustable puller, which comprises a puller seat, a mandril, a connecting arm and a pulling claw, wherein the pulling claw comprises an outer pull rod and an inner pull rod; the outer pull rod comprises a connecting part and a cylindrical part, and the pull claw is connected with the connecting arm through the connecting part; the inner pull rod comprises a cylindrical part and a hook, and the cylindrical part extends into the cylindrical part and forms a cylindrical pair with the cylindrical part; the cylindrical part is provided with a guide groove, and the guide groove comprises an axial groove and more than two bayonets; the cylindrical part is provided with a positioning pin which can drive the cylindrical part to move axially in the axial groove and can be clamped in the bayonet to limit the axial movement. Through this draw horse device, can realize drawing the regulation of claw, be applicable to parts such as the bearing far away from off-axis terminal surface of dismantlement.
However, the puller device has the defects of large volume, heavy weight and more parts, and has the problems that the puller claw is difficult to align and the operation is more complicated in the compact motor bearing disassembly scene in a narrow space; in addition, the pulling claws are positioned only by the bottom surface, the applied pulling force among the pulling claws is easy to cause unevenness, and the motor shaft is easy to be damaged by disassembly.
The information disclosed in the background section above is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The problem to prior art exists, the utility model provides a compact motor bearing dismantles and draws horse device, simple structure, whole frock part is small in quantity, light in weight, convenient to use, occupation space is little, uses in the scene of polytypic bearing among the especially suitable compact motor to can adjust, change according to the condition of each part, the flexibility is high.
In order to realize the purpose of the utility model, the technical scheme of the utility model is as follows:
the utility model provides a compact motor bearing dismantles and draws horse device, includes and draws horse seat, ejector pin and pull rod, wherein:
the puller seat comprises a positioning disc with a circular middle part, a first threaded hole is formed in the middle part of the positioning disc, an external thread matched with the first threaded hole is formed in the outer surface of the ejector rod, the ejector rod is connected with the first threaded hole in the positioning disc through the external thread, and the ejector rod can move up and down relative to the puller seat through rotation;
The positioning disc is vertically and uniformly provided with at least two beams around the side surface of the positioning disc, and the beams and the positioning disc are integrated;
each cross beam is provided with the pull rod, the side surface of the top end of each pull rod is provided with a connecting hole matched with the cross section of the cross beam, and the pull rods are connected with the cross beams in a sliding mode through the connecting holes;
a second threaded hole is formed in the end part of the top end of the pull rod, an inner hexagon bolt is arranged in the second threaded hole, and the pull rod and the cross beam are screwed and fixed through the inner hexagon bolt;
the inner side surface of the pull rod is provided with a groove, and the groove is used for being clamped with the surface of a motor bearing.
Specifically, an outer hexagonal head is arranged at the top of the ejector rod.
Specifically, the number of the cross beams is three, and an included angle between every two adjacent cross beams is 120 degrees.
The utility model has the advantages that:
the position of the pull rod of the puller device can be adjusted according to the size of the bearing, the pull rod can be fixed by screwing the bolt, the puller device can be compatible with various types of bearings for use, and can be adjusted and replaced according to the conditions of various parts, so that the puller device has high flexibility; simultaneously, adopt the recess to be used for with motor bearing surface block, utilize a plurality of pull rods to contact with the outer disc of motor bearing, realize tangent line formula location, compare the location of current realization that draws the claw can be better with the motor bearing, the power of exerting to the motor bearing difference is even relatively, and is less to the damage of motor shaft. Through subtracting heavy design, under the function of realizing adjustable, this draw horse device draws horse device weight reduction 1/3 for other, and the part is still less relatively, and whole frock part is small in quantity, light in weight, the simple operation, occupation space is little, uses in the scene of the many models bearing in especially being fit for the compact motor in narrow and small space.
Drawings
Fig. 1 is the utility model relates to a compact motor bearing dismantles drawing horse device's schematic structure diagram.
Fig. 2 is a schematic view of the puller seat of the present invention.
Fig. 3 is a schematic view of the push rod of the present invention.
Fig. 4 is a schematic view of the pull rod of the present invention.
In the figure, 1-a puller seat, 101-a positioning disc, 102-a first threaded hole, 103-a cross beam, 2-a mandril, 201-an external thread, 202-an external hexagonal head, 3-a pull rod, 301-a connecting hole, 302-a second threaded hole, 303-a groove and 4-an internal hexagonal bolt.
Detailed Description
In order to explain the technical content, the achieved objects and the effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings.
As shown in fig. 1-4, the utility model provides a compact motor bearing dismantles and draws horse device mainly includes drawing horse seat 1, ejector pin 2 and pull rod 3.
Referring to fig. 2, the puller seat 1 includes a positioning plate 101 with a circular middle portion, a first threaded hole 102 is formed in the middle portion of the positioning plate 101, at least two cross beams 103 are vertically and uniformly distributed around the side surface of the positioning plate 101, and the cross beams 103 and the positioning plate 101 are integrally formed. The puller seat 1 is designed by the integrally formed cross beam 103 and the positioning disc 101, so that the weight is reduced in the radial space, the weight is reduced, and the number of parts is reduced.
Referring to the ejector rod 2 shown in fig. 3, the outer surface of the ejector rod 2 is provided with an external thread 201 matched with the first threaded hole 102, and the ejector rod 2 is connected with the first threaded hole 102 on the positioning disk 101 through the external thread 201; the mandril 2 can move up and down relative to the puller seat 1 through rotation, so as to perform thrust action on a motor shaft; each cross beam 103 is provided with a pull rod 3, as shown in fig. 4, a connecting hole 301 matched with the cross section of the cross beam 103 is formed in the side surface of the top end of each pull rod 3, and each pull rod 3 is connected with the cross beam 103 in a sliding mode through the connecting hole 301; the position can be adjusted according to the size of the bearing by sliding the pull rod 3; a second threaded hole 302 is formed in the end portion of the top end of the pull rod 3, an inner hexagon bolt 4 is arranged in the second threaded hole 302, and the pull rod 3 and the cross beam 103 are screwed and fixed through the inner hexagon bolt 4; the inner side surface of the pull rod 3 is provided with a groove 303, and the groove 303 is used for being clamped with the bearing surface of the motor. Through the setting of pull rod 3 for whole part reduces, and recess 303 has also alleviateed the weight of part, has increased radial space, is favorable to narrow and small space to dismantle the operation to compact motor bearing. Simultaneously, adopt recess 303 and motor bearing surface block, compare current draw the position of claw realization and motor bearing that can be better. Utilize a plurality of pull rods 3 to contact with the outer disc of motor bearing, realize tangent line formula location, the power of exerting to the motor bearing difference is even relatively, and is less to the damage of motor shaft.
The working principle of the utility model is as follows: when the positioning disc is used, the first threaded hole 102 in the middle of the positioning disc 101 is matched with the external thread 201 on the outer surface of the ejector rod 2, then the connecting hole 301 in the pull rod 3 is inserted into the cross beam 103, the radial space of the pull rod 3 is adjusted, the groove 303 in the pull rod 3 is used for the bearing surface of a motor bearing, the pull rod 3 is fixed by screwing the inner hexagon bolt 4, and the pull rod 3 acts on the effective position of the bearing; finally, the ejector rod 2 is screwed in, and the bearing is pulled out through the reverse action of the ejector rod 2 on the motor shaft.
Therefore, the position of the pull rod of the puller device can be adjusted according to the size of the bearing, the pull rod can be fixed only by screwing the bolt, the puller device can be compatible with various types of bearings for use, can be adjusted and replaced according to the conditions of various parts, and is high in flexibility; simultaneously, adopt recess 303 to be used for with motor bearing surface block, utilize the outer disc of a plurality of pull rods 3 and motor bearing to contact, realize tangent line formula location, compare the current realization that draws the claw can be better with motor bearing's location, the power of applying to the motor bearing difference is even relatively, and is less to the damage of motor shaft. Consequently, under the function of realizing adjustable, this draw horse device other draw horse device weight reduction 1/3 relatively, and the part still less relatively, whole frock part is small in quantity, light in weight, the simple operation, occupation space is little, especially is fit for using in the scene of polytypic bearing in the compact motor in narrow and small space, finally reaches the utility model discloses a purpose.
As a further preferable technical solution of this embodiment, the top of the top rod 2 is provided with an external hexagonal head 202, which can be used in cooperation with a wrench socket.
As a further preferable technical solution of this embodiment, the number of the beams 103 is three, and an included angle between two adjacent beams 103 is 120 °. Through three crossbeams 103 and three 3 equipartitions of pull rod, make the device with under the more balanced condition of effort of motor bearing, radial space is sufficient, and the whole weight of device does not obviously improve, the operation of being convenient for.
Although the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (3)
1. The utility model provides a compact motor bearing is dismantled and is drawn horse device, includes and draws horse seat (1), ejector pin (2) and pull rod (3), its characterized in that:
the puller seat (1) comprises a positioning disc (101) with a circular middle part, a first threaded hole (102) is formed in the middle part of the positioning disc (101), an external thread (201) matched with the first threaded hole (102) is formed in the outer surface of the ejector rod (2), the ejector rod (2) is connected with the first threaded hole (102) in the positioning disc (101) through the external thread (201), and the ejector rod (2) can move up and down relative to the puller seat (1) through rotation;
The positioning disc (101) is vertically and uniformly provided with at least two beams (103) around the side surface of the positioning disc (101), and the beams (103) and the positioning disc (101) are integrated;
each cross beam (103) is provided with the pull rod (3), the side surface of the top end of each pull rod (3) is provided with a connecting hole (301) matched with the cross section of the cross beam (103), and the pull rods (3) are connected with the cross beams (103) in a sliding mode through the connecting holes (301);
a second threaded hole (302) is formed in the top end of the pull rod (3), an inner hexagon bolt (4) is arranged in the second threaded hole (302), and the pull rod (3) and the cross beam (103) are screwed and fixed through the inner hexagon bolt (4);
a groove (303) is formed in the inner side face of the pull rod (3), and the groove (303) is used for being clamped with the surface of a motor bearing.
2. The compact motor bearing removal puller device according to claim 1, wherein: an outer hexagonal head (202) is arranged at the top of the ejector rod (2).
3. The compact motor bearing removal puller device according to claim 1, wherein: the number of the cross beams (103) is three, and the included angle between every two adjacent cross beams (103) is 120 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120363949.3U CN214446032U (en) | 2021-02-09 | 2021-02-09 | Puller device for disassembling compact motor bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120363949.3U CN214446032U (en) | 2021-02-09 | 2021-02-09 | Puller device for disassembling compact motor bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214446032U true CN214446032U (en) | 2021-10-22 |
Family
ID=78143252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120363949.3U Active CN214446032U (en) | 2021-02-09 | 2021-02-09 | Puller device for disassembling compact motor bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214446032U (en) |
-
2021
- 2021-02-09 CN CN202120363949.3U patent/CN214446032U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220909 Address after: No. 9, Keyuan East 11th Road, High-tech Zone, Nanning City, Guangxi Zhuang Autonomous Region, 530009 Patentee after: Yuchaixinlan New Energy Power Technology Co.,Ltd. Address before: 537005 No. 88 flyover West Road, the Guangxi Zhuang Autonomous Region, Yulin Patentee before: Guangxi Yuchai Machinery Co.,Ltd. |
|
| TR01 | Transfer of patent right |