Integrated mandrel with bearings

Abstract

The integrated core shaft comprises a core shaft main body, a matched main shaft is embedded in the right side of the core shaft main body in a left-right sliding mode, a matched tool is embedded in the left side of the core shaft main body in a left-right sliding mode, and a roller bearing is fixedly connected to the middle of the outer side of the core shaft main body. The roller bearing is jointly composed of an inner cylinder, an outer cylinder and a plurality of balls, the inner side of the inner cylinder is fixedly connected with the mandrel body, threaded clamping rings are symmetrically and fixedly connected to the left side and the right side of the outer cylinder, and annular grooves are symmetrically formed in the opposite sides of the matched main shaft and the matched tool. The opposite sides of the threaded clamping rings are correspondingly rotated into the annular grooves and are in threaded connection with the matched main shaft and the matched tool correspondingly, coaxial locking and limiting and fixing in the left-right direction are carried out, the threaded clamping rings, the matched main shaft and the matched tool are integrated, synchronous transmission of kinetic energy is completed, the problem of kinetic energy loss caused by gaps is avoided, the operation precision is improved, and the working efficiency is improved. And only one step is needed for disassembly and assembly, and rapidness and convenience are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mandrels, in particular to an integrated mandrel with bearings. Background Art

[0002] Mandrels are divided into standard mandrels and non-standard mandrels. Among them, a standard mandrel is a mechanical part for connecting rotating parts. In the current mechanical field, it is used for the mutual connection between parts to ensure the normal operation of large equipment, including a connection section, a rotating section, and a fixed section. For some traditional standard mandrels, a limiting strip is used to position the parts. However, the traditional limiting strip cannot well clamp and fix the parts, and gaps are often formed on the clamping contact surface, resulting in the kinetic energy transmitted by the main shaft being gradually lost, which affects the service life of the parts and the use efficiency of the mechanical equipment. In addition, the traditional limiting strip needs to be fixed at both ends separately, with more steps and requiring alignment, and the disassembly and assembly efficiency is relatively low. Content of the Utility Model

[0003] The purpose of the utility model is to provide an integrated mandrel with bearings, which can perform coaxial locking and limit fixation in the left and right directions, making the three become a whole and completing the synchronous transmission of kinetic energy, avoiding the problem of kinetic energy loss caused by gaps in the traditional buckling method, improving the operation accuracy, and having only one step for both disassembly and assembly, which is fast, simple, and has higher efficiency.

[0004] To achieve the above purpose, an integrated mandrel with bearings is provided, including a mandrel body. A plurality of limiting grooves are annularly arranged on the outer side of the right end of the mandrel body. A positioning hole is provided at the center of the right side of the mandrel body. A matching main shaft is slidably and fittingly embedded on the left and right sides of the right side of the mandrel body. A plurality of spring clips are annularly arranged on the left part of the outer side of the mandrel body. One side of each spring clip extends into the inner wall of the mandrel body and is slidably and fittingly connected with it. A positioning shaft is fixedly connected to the center of the left side of the mandrel body. A matching tooling is slidably and fittingly embedded on the left and right sides of the left side of the mandrel body. A roller bearing is fixedly connected to the middle part of the outer side of the mandrel body. The roller bearing is composed of an inner cylinder, an outer cylinder, and a plurality of ball bearings. The inner side of the inner cylinder is fixedly connected to the mandrel body. Threaded clamping rings are symmetrically fixedly connected to the left and right sides of the outer cylinder. Ring grooves are symmetrically provided on the opposite sides of the matching main shaft and the matching tooling. The opposite sides of the threaded clamping rings are respectively rotated into the ring grooves and are threadedly connected to the matching main shaft and the matching tooling. By fixedly installing a roller bearing in the middle of the outer side of the mandrel body and cooperating with a double-threaded clamping ring to perform synchronous rotational threaded docking with the matching main shaft and the matching tooling respectively, the three are coaxial locked and limitedly fixed in the left and right directions, making the three become a whole and completing the synchronous transmission of kinetic energy, avoiding the problem of kinetic energy loss caused by gaps in the traditional buckling method, improving the operation accuracy, and having only one step for both disassembly and assembly, which is fast, simple, and has higher efficiency.

[0005] According to the integrated mandrel with bearings, a rubber sleeve is fixedly wound around the outside of the roller bearing, and anti-slip patterns are evenly arranged on the outside of the rubber sleeve. It is convenient to apply force to rotate the outer cylinder of the roller bearing for screw fixation.

[0006] According to the integrated mandrel with bearings, the thread distribution between the annular groove and the screw snap ring relative to each other is also symmetrically arranged, and their thread locking directions are the same. It is convenient for co-rotating double docking.

[0007] According to the integrated mandrel with bearings, a layer of rubber pad is attached to the left end face of the positioning shaft, and the left side of the rubber pad is in pressing fit with the supporting tooling. It reduces the collision impact during docking.

[0008] According to the integrated mandrel with bearings, the cross-sectional radii of the supporting main shaft, the roller bearing and the supporting tooling are the same, and a layer of sealing film is attached to the side where the three are butt-jointed on the left and right. It maintains the height unity and aesthetics after the three are docked.

[0009] According to the integrated mandrel with bearings, round corners are symmetrically arranged at both left and right ends on the opposite side of the spring clip, and the inner edge on the right side of the supporting tooling is press-fitted with the spring clip along the edge of the round corner. It is convenient for the spring clip to be more smoothly squeezed and retracted.

[0010] According to the integrated mandrel with bearings, a reinforcing rod is fixedly embedded in the left-right direction at the center inside the mandrel body, and both left and right ends of the reinforcing rod are embedded inside the mandrel body. It improves its anti-bending strength and avoids micro-deformation damage that affects the processing accuracy.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] In the present utility model, by fixedly installing a roller bearing in the middle of the outside of the mandrel body and cooperating with a two-way screw snap ring to perform synchronous rotation screw docking with the supporting main shaft and the supporting tooling respectively, the three are coaxially locked and limitedly fixed in the left-right direction, so that the three become a whole and complete the synchronous transmission of kinetic energy, avoiding the problem of kinetic energy loss caused by gaps in the traditional buckling method, improving the operation accuracy, and there is only one step for disassembly and assembly, which is fast, simple and more efficient.

[0013] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0014] The following further illustrates the present utility model in conjunction with the drawings and embodiments;

[0015] Figure 1 Schematic diagram of the disassembly of an integrated mandrel with bearings according to the present utility model;

[0016] Figure 2 Cross-sectional view of the connection structure of the supporting main shaft in an integrated mandrel with bearings according to the present utility model;

[0017] Figure 3 Cross-sectional view of the connection structure of the supporting tooling in an integrated mandrel with bearings according to the present utility model;

[0018] Figure 4 Schematic diagram of the connection structure of the mandrel body in an integrated mandrel with bearings according to the present utility model.

[0019] In the figure: 1, mandrel body; 2, limit groove; 3, positioning hole; 4, supporting main shaft; 5, spring clip; 6, positioning shaft; 7, supporting tooling; 8, roller bearing; 9, threaded snap ring; 10, annular groove. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4, the present utility model provides a technical solution: an integrated mandrel with bearings, including a mandrel body 1. A reinforcing rod is fixedly fitted in the left-right direction at the center inside the mandrel body 1. Both the left and right ends of the reinforcing rod are embedded inside the mandrel body 1. A plurality of limiting grooves 2 are arranged in a circular array on the outer side of the right end of the mandrel body 1. A positioning hole 3 is provided at the center on the right side of the mandrel body 1. A matching main shaft 4 is slidably fitted in the left-right direction on the right side of the mandrel body 1. A plurality of spring clips 5 are arranged in a circular array on the left part of the outer side of the mandrel body 1. Rounded corners are symmetrically provided at both the left and right ends on the opposite side of the spring clip 5. The inner edge on the right side of the matching tooling 7 presses and engages with the spring clip 5 along the edge of the rounded corner. The opposite sides of the spring clip 5 extend into the inner wall of the mandrel body 1 and are fitted and slidably connected thereto. A positioning shaft 6 is fixedly connected to the center on the left side of the mandrel body 1. A matching tooling 7 is slidably fitted in the left-right direction on the left side of the mandrel body 1. A roller bearing 8 is fixedly connected to the middle part of the outer side of the mandrel body 1. The roller bearing 8 is composed of an inner cylinder, an outer cylinder and a plurality of balls. The inner side of the inner cylinder is fixedly connected to the mandrel body 1. Threaded clamping rings 9 are symmetrically fixedly connected to both the left and right sides of the outer cylinder. Ring grooves 10 are symmetrically provided on the opposite sides of the matching main shaft 4 and the matching tooling 7. The opposite sides of the threaded clamping rings 9 are respectively turned into the ring grooves 10 and are threadedly connected to the matching main shaft 4 and the matching tooling 7, capable of performing coaxial locking and left-right direction limiting and fixing, making the three become an integral whole and completing the synchronous transmission of kinetic energy, avoiding the problem that gaps appear in the traditional buckling method resulting in kinetic energy loss, improving the operation accuracy, and there is only one step for both disassembly and assembly, which is quick, simple and more efficient.

[0022] A rubber sleeve is fixedly wound around the outer side of the roller bearing 8. Anti-slip lines are evenly provided on the outer side of the rubber sleeve. The thread distribution between the ring groove 10 and the threaded clamping ring 9 relative to each other is also symmetrically arranged, and their thread locking directions are the same, facilitating the synchronous rotation and locking of the matching main shaft and the matching tooling.

[0023] A layer of rubber pad is attached to the left end face of the positioning shaft 6. The left side of the rubber pad is pressed and attached to the matching tooling 7. The sectional radii of the matching main shaft 4, the roller bearing 8 and the matching tooling 7 are the same, and a layer of sealing film is attached to the side where the three are butt-jointed on the left and right, for fitting buffering and integrated butt-joint, maintaining the neat and smooth outer surface after the three are butt-jointed.

[0024] Working principle: In the present utility model, by fixedly installing the roller bearing 8 in the middle part of the outer side of the mandrel body 1 and cooperating with the bidirectional threaded clamping ring 9 to perform synchronous rotation and threaded butt-joint with the matching main shaft 4 and the matching tooling 7 respectively, the three are coaxial locked and limited and fixed in the left-right direction, making the three become an integral whole and completing the synchronous transmission of kinetic energy, avoiding the problem that gaps appear in the traditional buckling method resulting in kinetic energy loss, improving the operation accuracy, and there is only one step for both disassembly and assembly, which is quick, simple and more efficient.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art to which it pertains.

Claims

1. An integrated mandrel with bearings, comprising a mandrel body (1), characterized in that, A number of limiting grooves (2) are arranged in an annular array on the outer side of the right end of the mandrel body (1). A positioning hole (3) is provided at the center of the right side of the mandrel body (1). A matching main shaft (4) is slidably fitted in the left-right direction on the right side of the mandrel body (1). A number of spring clips (5) are arranged in an annular array on the left part of the outer side of the mandrel body (1). The opposite sides of the spring clips (5) all extend into the inner wall of the mandrel body (1) and are in interference sliding connection therewith. A positioning shaft (6) is fixedly connected to the center of the left side of the mandrel body (1). A matching tooling (7) is slidably fitted in the left-right direction on the left side of the mandrel body (1). A roller bearing (8) is fixedly connected to the middle part of the outer side of the mandrel body (1). The roller bearing (8) is composed of an inner cylinder, an outer cylinder and a number of balls. The inner side of the inner cylinder is fixedly connected to the mandrel body (1). Threaded snap rings (9) are symmetrically fixedly connected to the left and right sides of the outer cylinder. Ring grooves (10) are symmetrically provided on the opposite sides of the matching main shaft (4) and the matching tooling (7). The opposite sides of the threaded snap rings (9) are respectively turned into the ring grooves (10) and are threadedly connected to the matching main shaft (4) and the matching tooling (7).

2. The integrated mandrel with a bearing according to claim 1, characterized in that: A rubber sleeve is fixedly wound around the outer side of the roller bearing (8). Anti-slip lines are evenly arranged on the outer side of the rubber sleeve.

3. The integrated mandrel with a bearing according to claim 1, characterized in that: The thread distributions between the ring grooves (10) and the threaded snap rings (9) relative to each other are also symmetrically arranged, and their thread locking directions are the same.

4. The integrated mandrel with a bearing according to claim 1, wherein: A layer of rubber pad is attached to the left end face of the positioning shaft (6), and the left side of the rubber pad is in pressing fit with the matching tooling (7).

5. The integrated mandrel with bearings according to claim 1, characterized in that: The cross-sectional radii of the matching main shaft (4), the roller bearing (8) and the matching tooling (7) are the same, and a layer of sealing film is attached to the side where the three are butted in the left-right direction.

6. The integrated mandrel with a bearing according to claim 1, characterized in that: Rounded corners are symmetrically provided at both the left and right ends of the opposite sides of the spring clips (5). The inner edge of the right side of the matching tooling (7) is in pressing fit with the spring clips (5) along the edges of the rounded corners.

7. An integrated mandrel with a bearing according to claim 1, characterized in that: A reinforcing rod is fixedly fitted in the left-right direction at the center of the inside of the mandrel body (1), and both the left and right ends of the reinforcing rod are embedded in the inside of the mandrel body (1).

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