CN215433491U - Special tool for bearing disassembly - Google Patents
Special tool for bearing disassembly Download PDFInfo
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- CN215433491U CN215433491U CN202121831860.1U CN202121831860U CN215433491U CN 215433491 U CN215433491 U CN 215433491U CN 202121831860 U CN202121831860 U CN 202121831860U CN 215433491 U CN215433491 U CN 215433491U
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- screw rod
- handed screw
- limiting plate
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Abstract
The utility model relates to a special tool for disassembling a bearing, which comprises a supporting mechanism assembly, a limiting plate, a right-handed screw rod, a left-handed screw rod, an adjusting assembly and a tip screwing mechanism, wherein the supporting mechanism assembly is arranged on the supporting mechanism assembly; the right end of the left-handed screw rod is fixedly connected with the supporting mechanism assembly, and the left end of the left-handed screw rod is in threaded rotary connection with the adjusting assembly; the right end of the right-handed screw rod is in threaded rotary connection with the adjusting assembly, and the left end of the right-handed screw rod is provided with an internal threaded hole in threaded connection with the tip screwing mechanism; the limiting plate is connected with the supporting mechanism assembly. The technical scheme changes the traditional method, the dismounting process can be suitable for dismounting bearings with different shaft sizes, and the use is more convenient, quicker, more flexible and more reliable. The device adopts a high-tech means of effectively combining thread force transmission with a ratchet wheel and a pawl, can be completed by only one person, reduces the labor intensity and improves the working efficiency. And the transmission process selects fine threads with high tension and operates stably, so that the damage to equipment is small, and meanwhile, the potential safety hazard is thoroughly eliminated.
Description
Technical Field
The utility model belongs to the technical field of tools, and particularly relates to a special tool for disassembling a bearing.
Background
At present, the automation degree of a silk thread making device in the field of cigarettes is higher, and a working mode of replacing manpower with machinery is a mainstream direction. The bearing is a component for fixing and reducing the load friction coefficient in the mechanical transmission process, and is a light component in the modern mechanical equipment. The bearing is in poor lubrication in long-time operation, and the fatigue damage is caused by the entering of pollutants or improper installation and treatment, so that mechanical equipment is vibrated, abnormally sounded and locked to stop due to untimely replacement. Each replacement is done by conventional hammering, lever prying or by a puller, which is only used when the shaft is loosely fitted to the bearing. The method has the advantages that the shaft and the bearing inner ring are glued or rusted in the using process, the output force is insufficient, the operation is complicated, time and labor are wasted, the mechanical equipment is damaged, and the potential safety hazards of injury of hands, feet and the like exist in field operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a special tool for disassembling a bearing, which aims to solve the problems that the existing bearing is complex in disassembling operation, time-consuming, labor-consuming and hurt mechanical equipment, and potential safety hazards of injuring people such as hand injury and foot injury exist in field operation.
In order to realize the purpose, the utility model is realized by the following technical scheme:
a special tool for disassembling a bearing comprises a supporting mechanism assembly, a limiting plate, a right-handed screw rod, a left-handed screw rod, an adjusting assembly and a tip screwing mechanism;
the right end of the left-handed screw rod is fixedly connected with the supporting mechanism assembly, and the left end of the left-handed screw rod is in threaded rotary connection with the adjusting assembly;
the right end of the right-handed screw rod is in threaded rotary connection with the adjusting assembly, and the left end of the right-handed screw rod is provided with an internal threaded hole in threaded connection with the tip screwing mechanism;
the limiting plate is connected with the supporting mechanism assembly.
Furthermore, the supporting mechanism assembly comprises a first supporting plate, a second supporting plate, a positioning pipe and three screw rods;
three opposite through holes are formed in the first supporting plate and the second supporting plate, the three screw rods penetrate through the opposite through holes, and two nuts are used on two sides of each supporting plate to be connected into a frame structure;
a U-shaped opening is formed in the first supporting plate, and rectangular openings are formed in two sides of the U-shaped opening respectively;
the positioning tube is arranged at the center of the opposite surface of the second support plate and the first support plate, and an inner hole communicated with the inner cavity of the positioning tube is arranged on the side wall of the positioning tube.
Further, the limiting plate includes limiting plate body and handle, the handle set up in the one end of limiting plate body, the other end of limiting plate body is the arc.
Furthermore, the adjusting assembly comprises a containing groove, a ratchet wheel, a pawl, a sleeve, a shaft and a rotating handle;
the sleeve and the accommodating groove are of an integral structure, the ratchet wheel is meshed with the pawl and is arranged in the accommodating groove, and the shaft passes through the pawl and one end of the shaft extends out of the accommodating groove to be connected with the rotating handle;
the ratchet wheel is provided with an internal thread hole, wherein the right side is provided with a left-handed internal thread matched with a left-handed screw rod, and the left side is provided with a right-handed internal thread matched with a right-handed screw rod.
Further, the ratchet wheel has 45 teeth, and the pawl has 4 teeth.
Further, the center screwing mechanism comprises a center and a tail end screw rod, and the center is in a cone frustum shape.
The utility model has the beneficial effects that:
the technical scheme changes the traditional method, the dismounting process can be suitable for dismounting bearings with different shaft sizes, and the use is more convenient, quicker, more flexible and more reliable. The device adopts a high-tech means of effectively combining thread force transmission with a ratchet wheel and a pawl, can be completed by only one person, reduces the labor intensity and improves the working efficiency. And the transmission process selects fine threads with high tension and operates stably, so that the damage to equipment is small, and meanwhile, the potential safety hazard is thoroughly eliminated.
Drawings
FIG. 1 is a front view of the special tool for bearing removal of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
FIG. 4 is a schematic view showing the connection position of the rotary handle and the vessel.
Description of the reference numerals
1. The screw rod, 2, a first supporting plate, 3, a nut, 4, a tip, 5, a right-handed screw rod, 6, a positioning pipe, 7, a bolt, 8, a left-handed screw rod, 9, an adjusting assembly, 10, a tip screwing mechanism, 11, a handle, 12, a limiting plate, 13, a jackscrew, 14, a U-shaped groove, 15, a containing groove, 16, a ratchet wheel, 17, a right-handed internal thread, 18, a left-handed internal thread, 19, a pawl, 20, a shaft, 21, a sleeve, 22 and a rotating handle.
Detailed Description
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be constructed in specific orientations, and be operated, and thus are not to be construed as limiting the present invention, and furthermore, the terms "first", "second", and "third" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The technical solution of the present invention is further described in detail by the following specific embodiments in conjunction with the accompanying drawings.
As shown in fig. 1, the present application provides a special tool for bearing disassembly, which includes a supporting mechanism assembly, wherein the supporting mechanism assembly includes a first supporting plate 2, a second supporting plate, a positioning tube 6, three screws 1 and a corresponding number of nuts 3. In the application, the first support plate and the second support plate are both made of a 45 # steel material with the thickness of 20mm, and the first support plate and the second support plate are circular in overall appearance and 400mm in diameter. 3 through holes with the diameter of 20mm are uniformly distributed on the first supporting plate and the second supporting plate respectively, so that the screw rod can pass through the through holes conveniently. The two ends of each screw rod are screwed with a nut, the screw rods penetrate through the through holes of the first supporting plate and the second supporting plate and are locked by the nuts to form a frame structure, and the distance between the two supporting plates can be adjusted by the structure.
As shown in fig. 2, a 150x200 mm U-shaped groove 14 is formed in the center of the first support plate 2, a square opening is formed in each of the two sides of the U-shaped groove, the square opening is communicated with the U-shaped groove, the thickness of each of the first support plates on the two sides of the square opening is 4mm, the height of the square opening is limited to 100mm, and a 100x90x10mm limiting plate can slide in the square opening conveniently. Two internal threaded holes are provided in the first support plate at positions opposite to the square openings, and the stopper plate 12 is pressed against or released from the outside of the first support plate using an M8 jack 13.
The limiting plate of this application is two, inserts the square opening of U type groove both sides respectively in, and the structure, size and the shape of two limiting plates are all the same completely, all include the limiting plate body and set up in the handle 11 of limiting plate body one end, are the arc at the other end of limiting plate, and the arc of two limiting plates forms the arc centre gripping in U type inslot for carry out the centre gripping to the shoulder axle.
A positioning tube 6 with the outer diameter of 40 mm, the inner diameter of 25mm and the length of 40 mm is welded at the center position of the surface of the second support plate opposite to the first support plate, and an M6 internal thread hole is formed in the side wall of the positioning tube in the length direction and connected with an M6 bolt 7, so that the M20x1 fine left-handed screw rod 8 is fixed.
As shown in figure 1, the right end of the left-handed screw rod 8 is inserted into the positioning pipe 6 and fixed by the M6 bolt 7, and the left end of the left-handed screw rod is in threaded rotary connection with the adjusting assembly 9.
The right end of the right-handed screw rod 5 is in threaded rotary connection with an adjusting assembly 9, and the left end of the right-handed screw rod is provided with an internal threaded hole in threaded connection with a tip screwing mechanism 10.
As shown in FIG. 3, the adjustment assembly includes a pocket, a ratchet, a pawl, a sleeve, a shaft, and a rotatable handle. The outer diameter of the containing groove is 50mm, and opposite round holes are formed in the containing groove and used for inserting the left-handed screw rod and the right-handed screw rod.
The sleeve 21 and the accommodating groove 15 are of an integral structure, the ratchet wheel 16 is meshed with the pawl 19 and is arranged in the accommodating groove, and the shaft 20 penetrates through the pawl, and one end of the shaft extends out of the accommodating groove to be connected with the rotating handle 22; in the application, the ratchet wheel is 45 teeth, and the vertex angle of each tooth is 8 degrees, so that the reciprocating motion of large-torque heavy load can be realized; the pawl is 4 teeth, and the apex angle of each tooth is 8 degrees, and the ratchet meshes with the pawl, changes through the handle regulation and meshes the direction with the ratchet.
The ratchet wheel is provided with an internal thread hole, wherein the right side is provided with a left-handed internal thread 18 matched with the left-handed screw rod 8, and the left side is provided with a right-handed internal thread 17 matched with the right-handed screw rod 5.
The tip screwing mechanism 10 comprises a tip 4 and a tail end screw rod, the tip is in a cone frustum shape, in the embodiment, the small diameter of the end part of the tip is 5mm, the large diameter of the end part of the tip is 25mm, and the inclination of the tip is 1: 10.
The working state is as follows: when the support plate works, the U-shaped groove of the first support plate is placed in a position corresponding to the shaft shoulder. The limiting plates at the two ends of the first supporting plate are adjusted through the handle, so that the cambered surfaces of the limiting plates and the shaft shoulders are clamped tightly, and the jackscrew is locked (the distance between the limiting plates and the shaft can be adjusted according to different specifications and sizes of the shaft). The left-handed screw rod is fixed in the second supporting plate positioning tube through a bolt, and the adjusting assembly is connected with the left-handed screw rod and the right-handed screw rod through threads. Different centers (the centers can be interchanged) are selected according to the size of the central hole of the spindle head to be in threaded connection with the right-handed screw rod, the length distance between the centers and the supporting plates is adjusted, and the screw rod is connected with the two supporting plates to complete the locking and combination of the nuts. The force applying rod is inserted into the sleeve to rotate in a reciprocating mode, the meshing direction of the ratchet wheel and the pawl in the containing groove is adjusted, the ratchet wheel and the pawl drive the adjusting assembly to be simultaneously screwed outwards with the left-handed screw rod and the right-handed screw rod, one end force is propped against the center hole of the shaft head, the other end force acts on the outer side supporting plate, and the bearing is pulled to be separated from the shaft head through the external supporting force. The movement direction of the ratchet can be changed by pulling the upper handle of the pawl, the sleeve is rotated, so that the left-handed screw rod and the right-handed screw rod are simultaneously screwed inwards to achieve the purpose of force unloading, and the tool is taken out.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (6)
1. A special tool for disassembling a bearing is characterized by comprising a supporting mechanism assembly, a limiting plate, a right-handed screw rod, a left-handed screw rod, an adjusting assembly and a tip screwing mechanism;
the right end of the left-handed screw rod is fixedly connected with the supporting mechanism assembly, and the left end of the left-handed screw rod is in threaded rotary connection with the adjusting assembly;
the right end of the right-handed screw rod is in threaded rotary connection with the adjusting assembly, and the left end of the right-handed screw rod is provided with an internal threaded hole in threaded connection with the tip screwing mechanism;
the limiting plate is connected with the supporting mechanism assembly.
2. The special tool for disassembling the bearing according to claim 1, wherein the supporting mechanism assembly comprises a first supporting plate, a second supporting plate, a positioning tube and three screw rods;
three opposite through holes are formed in the first supporting plate and the second supporting plate, the three screw rods penetrate through the opposite through holes, and two nuts are used on two sides of each supporting plate to be connected into a frame structure;
a U-shaped opening is formed in the first supporting plate, and rectangular openings are formed in two sides of the U-shaped opening respectively;
the positioning tube is arranged at the center of the opposite surface of the second support plate and the first support plate, and an inner hole communicated with the inner cavity of the positioning tube is arranged on the side wall of the positioning tube.
3. The special tool for disassembling the bearing of claim 2, wherein the limiting plate comprises a limiting plate body and a handle, the handle is disposed at one end of the limiting plate body, and the other end of the limiting plate body is arc-shaped.
4. The special tool for disassembling the bearing according to claim 1, wherein the adjusting assembly comprises a containing groove, a ratchet wheel, a pawl, a sleeve, a shaft and a rotating handle;
the sleeve and the accommodating groove are of an integral structure, the ratchet wheel is meshed with the pawl and is arranged in the accommodating groove, and the shaft passes through the pawl and one end of the shaft extends out of the accommodating groove to be connected with the rotating handle;
the ratchet wheel is provided with an internal thread hole, wherein the right side is provided with a left-handed internal thread matched with a left-handed screw rod, and the left side is provided with a right-handed internal thread matched with a right-handed screw rod.
5. The special tool for bearing removal as claimed in claim 4, wherein the ratchet is 45 teeth and the pawl is 4 teeth.
6. The special tool for disassembling the bearing according to claim 1, wherein the center screwing mechanism comprises a center and a tail end screw rod, and the center is in a cone frustum shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121831860.1U CN215433491U (en) | 2021-08-06 | 2021-08-06 | Special tool for bearing disassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121831860.1U CN215433491U (en) | 2021-08-06 | 2021-08-06 | Special tool for bearing disassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215433491U true CN215433491U (en) | 2022-01-07 |
Family
ID=79692158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121831860.1U Active CN215433491U (en) | 2021-08-06 | 2021-08-06 | Special tool for bearing disassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215433491U (en) |
-
2021
- 2021-08-06 CN CN202121831860.1U patent/CN215433491U/en active Active
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