Fixing shaft sleeve for machining end face of large steel shaft

Abstract

The fixing shaft sleeve comprises an upper shaft sleeve and a lower shaft sleeve, a fixing inner cavity is formed in the middle positions of the ends, close to each other, of the upper shaft sleeve and the lower shaft sleeve, and the inner walls of the top end and the bottom end of the fixing inner cavity are each provided with two fixing assemblies. Two sets of rotating supporting blocks are further arranged on the inner walls of the top end and the bottom end of the fixed inner cavity. The fixing inner cavity is formed between the upper shaft sleeve and the lower shaft sleeve, and the fixing assemblies and the rotating supporting blocks are arranged on the inner walls of the top end and the bottom end of the fixing inner cavity, so that stable clamping of the steel shaft is achieved, and shaking and deviation in the machining process are effectively prevented. The fixing assemblies and the rotating supporting blocks are arranged in a staggered mode, and the fixing supporting blocks and the rotating supporting blocks in the fixing assemblies are connected with the upper shaft sleeve and the lower shaft sleeve through the bearings and the screws, so that the whole fixing shaft sleeve can be flexibly adjusted according to the size and the shape of the steel shaft, and adaptability is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel shaft processing technology, specifically to a fixed bushing for processing the end face of a large steel shaft. Background Technology

[0002] In the large-scale machinery manufacturing industry, the end face machining of steel shafts is a crucial step. The quality of this step directly affects the overall performance and service life of the steel shaft. To ensure machining accuracy and efficiency, the use of fixed bushings is particularly important. However, traditional fixed bushing designs have revealed a series of problems in practical applications.

[0003] Traditional fixed bushings are often not secure enough. When machining large steel shafts, due to their weight and size, traditional fixing methods are prone to loosening or slippage, leading to decreased machining accuracy and potentially damaging the shaft or machining equipment. Traditional fixed bushings also present numerous inconveniences in terms of adjustment. During machining, adjustments are sometimes necessary based on actual conditions, but traditional designs often involve cumbersome, time-consuming, and labor-intensive adjustments, reducing machining efficiency. Furthermore, traditional fixed bushings have relatively poor adaptability. Different specifications and sizes of steel shafts require different models of fixed bushings, increasing production costs and inventory pressure. Additionally, traditional fixed bushings often fail to meet the fixing requirements of some specially shaped steel shafts. Utility Model Content

[0004] The purpose of this invention is to provide a fixed bushing for machining the end face of a large steel shaft, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixed bushing for machining the end face of a large steel shaft, comprising an upper bushing and a lower bushing. A fixed inner cavity is formed at the midpoint of one end of the upper and lower bushings. Two sets of fixing components are provided on the inner walls of both the top and bottom of the fixed inner cavity. Two sets of rotating support blocks are also provided on the inner walls of both the top and bottom of the fixed inner cavity. The two sets of fixing components and the two sets of rotating support blocks are staggered. Each set of fixing components includes a fixed support block. Bearings are fixedly connected to the top and bottom of both sets of fixed support blocks and rotating support blocks. Screws are fixedly connected to the inner walls of multiple bearings. The top and bottom of the multiple screws are respectively threaded through to the upper and lower bushings.

[0006] As a further embodiment of this utility model: anti-slip blocks are connected to the ends of the two fixed support blocks that are close to each other.

[0007] As a further embodiment of this utility model: a rotating cavity is provided at one end of each of the two sets of rotating support blocks that are close to each other; a support wheel is rotatably connected to the inner wall of each of the multiple rotating cavities; a rotating shaft is fixedly connected to the two side walls of each of the multiple support wheels; and the ends of the multiple rotating shafts that are away from the support wheels are rotatably connected to the inner wall of the rotating cavity.

[0008] As a further embodiment of this utility model: the rotation direction of the plurality of supporting wheels is perpendicular to the opening direction of the fixed inner cavity, and the height distance between the highest and lowest points of the plurality of supporting wheels is greater than the height distance between the two ends of the rotating support blocks that are close to each other.

[0009] As a further embodiment of this utility model: connecting blocks are fixedly connected to both ends of the upper and lower bushings that are close to each other, and multiple connecting bolts are threaded through the top of the multiple connecting blocks, and turntables are fixedly connected to one end of the multiple screws that pass through the upper and lower bushings respectively.

[0010] As a further embodiment of this utility model: the bottom sidewalls on both sides of the lower bushing are fixedly connected with fixing columns, the bottom sidewalls of the fixing columns are fixedly connected with fixing blocks, and the tops of the fixing blocks are threadedly connected with fixing bolts.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves stable clamping of the steel shaft by setting a fixed inner cavity between the upper and lower bushings, and by setting fixed components and rotating support blocks on the inner walls of the top and bottom ends of the fixed inner cavity, effectively preventing shaking and displacement during processing. The fixed components and rotating support blocks are staggered, and both the fixed support blocks and rotating support blocks in the fixed components are connected to the upper and lower bushings via bearings and screws, allowing the entire fixed bushing to be flexibly adjusted according to the size and shape of the steel shaft, improving adaptability. By rotating the turntable, the extension length of the screw can be easily adjusted, thereby realizing the clamping and loosening operation of the steel shaft, simplifying the operation process and improving work efficiency. The anti-slip blocks on the fixed support blocks and the support wheels on the rotating support blocks effectively reduce wear and extend service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of the fixed bushing for machining the end face of a large steel shaft according to this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the lower bushing of the fixed bushing used for machining the end face of a large steel shaft according to this utility model;

[0014] Figure 3 This utility model relates to a fixed bushing for machining the end face of a large steel shaft. Figure 2Enlarged structural diagram at point A;

[0015] Figure 4 This is an enlarged schematic diagram of the bottom structure of the fixing component in the fixing bushing for machining the end face of a large steel shaft according to this utility model.

[0016] In the diagram: 1. Upper bushing; 2. Lower bushing; 3. Connecting block; 4. Fixed inner cavity; 5. Fixed column; 6. Fixed block; 7. Screw; 8. Turntable; 9. Fixed assembly; 91. Fixed support block; 92. Anti-slip block; 10. Rotating support block; 11. Rotating cavity; 12. Support wheel; 13. Rotating shaft; 14. Bearing. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0019] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "configuration" should be interpreted broadly. For example, they can refer to a fixed connection or configuration, a detachable connection or configuration, or an integral connection or configuration. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Please see Figures 1-4 In the embodiments of this utility model:

[0022] Example 1

[0023] A new type of fixed bushing for machining the end face of a large steel shaft;

[0024] The fixed bushing includes an upper bushing 1 and a lower bushing 2, which together form a fixed inner cavity 4 at their midpoints near one end. This fixed inner cavity 4 is used to accommodate and fix the large steel shaft to be processed.

[0025] Two sets of fixing components 9 and two sets of rotating support blocks 10 are respectively provided on the inner walls of the top and bottom ends of the fixed inner cavity 4. These two sets of fixing components 9 and rotating support blocks 10 are staggered to ensure the stability of the steel shaft in the fixed inner cavity 4. The fixing component 9 includes a fixing support block 91, and anti-slip blocks 92 are connected to the adjacent ends of the blocks to increase the friction between the blocks and the steel shaft and prevent the steel shaft from sliding during processing.

[0026] The design of the rotating support block 10 is even more ingenious. Each of its adjacent ends has a rotating cavity 11, the inner wall of which is rotatably connected to a support wheel 12. The rotation direction of these support wheels 12 is perpendicular to the opening direction of the fixed inner cavity 4, and the height distance between their highest and lowest points is greater than the height distance between the adjacent ends of the rotating support block 10. This design allows the support wheels 12 to adapt to the shape and size of the steel shaft when it is placed in the fixed inner cavity 4, thus providing better support.

[0027] In addition, connecting blocks 3 are fixedly connected to both ends of the upper bushing 1 and the lower bushing 2, which are close to each other. Multiple connecting bolts are threaded through the top of the connecting blocks 3 to secure the upper bushing 1 and the lower bushing 2 together. At the same time, multiple screws 7 are fixedly connected to a turntable 8 through one end of the upper bushing 1 and the lower bushing 2, respectively. The design of the turntable 8 allows the operator to adjust the tightness of the screws 7 by rotating it, thereby fixing the steel shaft.

[0028] The bottom sidewalls on both sides of the lower bushing 2 are also fixedly connected to fixing posts 5, and fixing blocks 6 are fixedly connected to the bottom sidewalls of fixing posts 5. The top of fixing blocks 6 is threaded with fixing bolts. This design allows the entire fixed bushing to be firmly installed on the worktable, ensuring stability during the machining process.

[0029] Example 2

[0030] This embodiment has the same basic structure as Embodiment 1, but some details have been optimized. Specifically, the fixing component 9 in this embodiment is made of a more wear-resistant material to improve its service life and fixing effect. At the same time, the support wheel 12 on the rotating support block 10 has also been improved, using a more flexible rotating shaft 13 and a more wear-resistant material to ensure its stability and durability during long-term use.

[0031] In addition, this embodiment adds sealing elements such as sealing gaskets at the connection between the upper bushing 1 and the lower bushing 2 to prevent liquids such as cutting fluid generated during processing from seeping into the interior of the fixed bushing and causing corrosion and damage.

[0032] In practical applications, workers can select the appropriate fixing bushing model according to the specifications and dimensions of the steel shaft to be processed, and achieve precise fixing of the steel shaft by adjusting the tightness of the screw 7 and the rotation angle of the support wheel 12. Then, the fixing bushing is installed on the worktable, and the processing equipment can be started to perform end face processing of the steel shaft.

[0033] The working principle of this utility model is as follows: In use, the large steel shaft is first placed in the fixed inner cavity 4. Then, the extension length of the screw 7 is adjusted by rotating the turntable 8, so that the fixing component 9 and the rotating support block 10 clamp the steel shaft. Since the fixing component 9 and the rotating support block 10 are staggered, and the fixing support block 91 is provided with an anti-slip block 92, the steel shaft can be firmly fixed in the fixed inner cavity 4.

[0034] During processing, the steel shaft may need to rotate to a certain extent to meet processing requirements. At this time, the support roller 12 rotates freely within the rotating cavity 11, allowing the steel shaft to rotate within the fixed inner cavity 4. Simultaneously, due to the reasonable and effective design of the support roller 12, friction and wear between the steel shaft and the fixed bushing are reduced.

[0035] After processing, the steel shaft can be removed from the fixed inner cavity 4 by rotating the turntable 8 to loosen the screw 7. The entire fixed bushing structure is compact, easy to operate, and highly practical.

[0036] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0037] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A fixed bushing for machining the end face of a large steel shaft, comprising an upper bushing (1) and a lower bushing (2), characterized in that: The upper bushing (1) and the lower bushing (2) are provided with a fixed inner cavity (4) at the middle position of their respective ends. The upper and lower inner walls of the fixed inner cavity (4) are provided with two sets of fixing components (9). The upper and lower inner walls of the fixed inner cavity (4) are also provided with two sets of rotating support blocks (10). The two sets of fixing components (9) and the two sets of rotating support blocks (10) are arranged alternately. The two sets of fixing components (9) include a fixed support block (91). The top and bottom of the two sets of fixed support blocks (91) and rotating support blocks (10) are fixedly connected with bearings (14). The inner walls of the multiple bearings (14) are fixedly connected with screws (7). The top and bottom of the multiple screws (7) are respectively threaded through to the upper bushing (1) and the lower bushing (2).

2. The fixed bushing for machining the end face of a large steel shaft according to claim 1, characterized in that: Anti-slip blocks (92) are connected to the ends of the two fixed support blocks (91) that are close to each other.

3. The fixed bushing for machining the end face of a large steel shaft according to claim 1, characterized in that: The two sets of rotating support blocks (10) are provided with rotating cavities (11) at their close ends. The inner walls of the multiple rotating cavities (11) are rotatably connected to support wheels (12). The two side walls of the multiple support wheels (12) are fixedly connected to rotating shafts (13). The ends of the multiple rotating shafts (13) that are away from the support wheels (12) are rotatably connected to the inner walls of the rotating cavities (11).

4. The fixed bushing for machining the end face of a large steel shaft according to claim 3, characterized in that: The rotation direction of the plurality of support rollers (12) is perpendicular to the opening direction of the fixed inner cavity (4), and the height distance between the highest and lowest points of the plurality of support rollers (12) is greater than the height distance between the two ends of the rotating support block (10) that are close to each other.

5. The fixed bushing for machining the end face of a large steel shaft according to claim 1, characterized in that: Both ends of the upper bushing (1) and the lower bushing (2) are fixedly connected to each other, and multiple connecting bolts are threaded through the top of the multiple connecting blocks (3). A turntable (8) is fixedly connected to one end of each of the multiple screws (7) that pass through the upper bushing (1) and the lower bushing (2).

6. The fixed bushing for machining the end face of a large steel shaft according to claim 1, characterized in that: The bottom sidewalls on both sides of the lower bushing (2) are fixedly connected to fixing posts (5), and the bottom sidewalls of the fixing posts (5) are fixedly connected to fixing blocks (6), and the tops of the fixing blocks (6) are threadedly connected to fixing bolts.

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