CN213615653U - Cylindrical grinding clamp suitable for rotating shafts with different shaft diameters - Google Patents
Cylindrical grinding clamp suitable for rotating shafts with different shaft diameters Download PDFInfo
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- CN213615653U CN213615653U CN202022615380.3U CN202022615380U CN213615653U CN 213615653 U CN213615653 U CN 213615653U CN 202022615380 U CN202022615380 U CN 202022615380U CN 213615653 U CN213615653 U CN 213615653U
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- fixing frame
- annular fixing
- rotating shaft
- puller bolt
- rotating shafts
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Abstract
The utility model discloses an excircle grinding clamp suitable for rotating shafts with different shaft diameters, which comprises a base, an annular fixing frame and a puller bolt; an annular fixing frame is vertically fixed above the base, and a jacking bolt penetrates through the top of the annular fixing frame and is screwed with the top of the annular fixing frame; the bottom in the annular fixing frame corresponding to the puller bolt is arranged to be a V-shaped structure. The advantages are that: the clamp of the utility model has simple structure, easy realization, convenient and simple operation, and time and labor saving; the fixing is firm, the rotating shaft cannot slide in the grinding process, and further deviation of cylindricity and coaxiality of the rotating shaft is avoided; the precision requirement of the rotating shaft is guaranteed, the condition that the rotating shaft is scrapped is avoided, the production cost is reduced, and the machining efficiency is improved.
Description
The technical field is as follows:
the utility model relates to an anchor clamps, in particular to cylindrical grinding anchor clamps suitable for different diameter of axle pivots.
Background art:
the gearbox in the wind generating set is an important mechanical component, and the main function of the gearbox is to transmit the power generated by the wind wheel under the action of wind power to the generator and enable the generator to obtain corresponding rotating speed; however, the rotational speed of the wind wheel is usually very low, and the rotational speed is far from the rotational speed required by the generator for generating electricity, and the rotational speed must be increased by the speed increasing action of a gear pair of the gearbox, so the gearbox is also called as a speed increasing box. Before assembly, a rotating shaft in a gear box needs to be subjected to excircle grinding, and the rotating shaft needs to be fixed through a clamp in the excircle grinding process, as shown in figure 1, the currently adopted clamp mainly comprises a base 1, and an annular fixing frame 2 is vertically fixed on the base 1; a plurality of puller bolts 3 are uniformly arranged on the periphery of the annular fixing frame 2, when the fixing device is used, the rotating shaft is inserted into the annular fixing frame 2, and then the puller bolts 3 are sequentially screwed, so that the rotating shaft is fixed; however, the use of the above-described jig has the following problems: 1. when the fixing is carried out, a plurality of jacking bolts need to be screwed, so that the operation is complex, time-consuming and labor-consuming; 2. in the grinding process, the phenomenon that the fixed rotating shaft fixed by the clamp cannot slide easily occurs, the cylindricity and the coaxiality of the rotating shaft after grinding are prone to deviation, the rotating shaft cannot be accurately installed in the gear box, even the condition that the rotating shaft is scrapped occurs, and the production cost is increased.
The utility model has the following contents:
an object of the utility model is to provide a simple structure, convenient operation is succinct, and can be with the fixed firm excircle grinding anchor clamps that are applicable to different diameter of axle pivots of pivot.
The utility model discloses by following technical scheme implement: an outer circle grinding clamp suitable for rotating shafts with different shaft diameters comprises a base, an annular fixing frame and a puller bolt; the annular fixing frame is vertically fixed above the base, and the top of the annular fixing frame is in threaded connection with the puller bolt; and a V-shaped structure is arranged at the bottom in the annular fixing frame corresponding to the puller bolt.
Furthermore, the central line of the puller bolt and the central line of the V-shaped structure of the annular fixing frame are positioned on a straight line.
Further, an arc-shaped fixing plate is rotatably arranged at one end, located in the annular fixing frame, of the puller bolt; the outer side wall of the arc-shaped fixed plate is connected with the puller bolt through a rotating bearing, and a plurality of bulges are fixedly arranged on the inner side wall of the arc-shaped fixed plate; the protrusion is made of soft materials, so that the surface of the rotating shaft is protected from being scratched.
Furthermore, the circle center of the arc-shaped fixing plate is positioned on the central line of the puller bolt.
The utility model has the advantages that: the utility model has simple structure and easy realization, directly clamps the rotating shaft in the V-shaped structure of the annular fixing frame, and then directly jacks through the jacking bolt to realize the fixation of the rotating shaft, and has convenient and simple operation and time and labor saving; the fixing is firm, the rotating shaft cannot slide in the grinding process, and further deviation of cylindricity and coaxiality of the rotating shaft is avoided; the precision requirement of the rotating shaft is guaranteed, the condition that the rotating shaft is scrapped is avoided, the production cost is reduced, and the machining efficiency is improved.
Description of the drawings:
fig. 1 is a schematic structural diagram of the prior art.
Fig. 2 is a schematic structural diagram of the present invention.
The parts in the drawings are numbered as follows:
the device comprises a base 1, an annular fixing frame 2, a V-shaped structure 21, a puller bolt 3, an arc-shaped fixing plate 4, a rotating bearing 5 and a protrusion 6.
The specific implementation mode is as follows:
as shown in fig. 2, the cylindrical grinding fixture suitable for the rotating shafts with different shaft diameters comprises a base 1, an annular fixing frame 2 and a puller bolt 3; an annular fixing frame 2 is vertically fixed above the base 1, and a jacking bolt 3 penetrates through and is screwed at the top of the annular fixing frame 2; a V-shaped structure 21 is arranged at the bottom in the annular fixing frame 2 corresponding to the puller bolt 3; the central line of the puller bolt 3 and the central line of the V-shaped structure 21 of the annular fixed frame 2 are positioned on a straight line.
An arc-shaped fixing plate 4 is rotatably arranged at one end of the puller bolt 3 in the annular fixing frame 2; the outer side wall of the arc-shaped fixing plate 4 is connected with the puller bolt 3 through the rotating bearing 5, a plurality of bulges 6 are fixedly arranged on the inner side wall of the arc-shaped fixing plate 4, the bulges 6 are made of soft materials, the surface of the rotating shaft is protected from being scratched, the friction force between the rotating shaft and the bulges is increased, and the rotating shaft is prevented from sliding in the grinding process; the center of the arc-shaped fixing plate 4 is positioned on the central line of the puller bolt 3.
The working principle is as follows:
the rotating shaft is directly and transversely inserted into the annular fixing frame 2, one side surface of the rotating shaft is clamped in the V-shaped structure 21 of the annular fixing frame 2, the puller bolt 3 is rotated, the other side surface of the rotating shaft is attached to the inner side wall of the arc-shaped fixing plate 4, and the puller bolt 3 is finally screwed down to fix the rotating shaft; the fixing is firm, the rotating shaft cannot slide in the grinding process, and further deviation of cylindricity and coaxiality of the rotating shaft is avoided; the precision requirement of the rotating shaft is ensured, the condition that the rotating shaft is scrapped is avoided, the production cost is reduced, and the processing efficiency is improved; and the utility model discloses simple structure easily realizes.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The cylindrical grinding clamp suitable for rotating shafts with different shaft diameters is characterized by comprising a base, an annular fixing frame and a puller bolt;
the annular fixing frame is vertically fixed above the base, and the top of the annular fixing frame is in threaded connection with the puller bolt; and a V-shaped structure is arranged at the bottom in the annular fixing frame corresponding to the puller bolt.
2. The cylindrical grinding fixture for the rotating shafts with different shaft diameters as claimed in claim 1, wherein the center line of the puller bolt and the center line of the V-shaped structure of the annular fixing frame are located on a straight line.
3. The cylindrical grinding fixture suitable for the rotating shafts with different shaft diameters as claimed in claim 1 or 2, wherein an arc-shaped fixing plate is rotatably arranged at one end, located in the annular fixing frame, of the tightening bolt; the outer side wall of the arc-shaped fixing plate is connected with the tightening bolt through a rotating bearing, and a plurality of bulges are fixedly arranged on the inner side wall of the arc-shaped fixing plate.
4. The cylindrical grinding fixture for the rotating shafts with different shaft diameters as claimed in claim 3, wherein the center of the arc-shaped fixing plate is located on the central line of the puller bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022615380.3U CN213615653U (en) | 2020-11-11 | 2020-11-11 | Cylindrical grinding clamp suitable for rotating shafts with different shaft diameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022615380.3U CN213615653U (en) | 2020-11-11 | 2020-11-11 | Cylindrical grinding clamp suitable for rotating shafts with different shaft diameters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213615653U true CN213615653U (en) | 2021-07-06 |
Family
ID=76632704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022615380.3U Active CN213615653U (en) | 2020-11-11 | 2020-11-11 | Cylindrical grinding clamp suitable for rotating shafts with different shaft diameters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213615653U (en) |
-
2020
- 2020-11-11 CN CN202022615380.3U patent/CN213615653U/en active Active
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