Novel high-strength stainless steel shaft

Abstract

The utility model relates to the technical field of stainless steel shafts, in particular to a novel high-strength stainless steel shaft which comprises a shaft body, the shaft body is fixedly connected outside a hexagonal-prism-shaped reinforcing shaft, a plurality of heat dissipation grooves are formed in the surface of the shaft body, the heat dissipation grooves are arranged in a threaded mode, and connecting columns are arranged at the two ends of the shaft body. A ventilation groove is horizontally formed in the connecting column, and the ventilation groove communicates with a vertically-formed connecting groove. By means of the heat dissipation grooves formed in the threaded mode, when the shaft body rotates, lubricating oil or air can be thrown out under rotation of the shaft body, then new lubricating oil or air is filled, heat energy of the shaft body is taken away along with flowing in the heat dissipation grooves, the shaft body can be cooled, and the service life of the shaft body is prolonged. The through holes are formed to discharge heat energy in the deep position of the shaft body along with flowing of a medium, the ventilation grooves and the connecting grooves are formed to cool the connecting shaft and prevent the temperature of the connecting position of the connecting shaft and a component from being too high, and the supporting joints are used for supporting the ventilation grooves in a cavity mode.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel shafts, in particular to a novel high-strength stainless steel shaft. Background Art

[0002] A shaft is a cylindrical object that goes through a bearing, a wheel, or a gear, but a few are square. A shaft is a mechanical part that supports rotating parts and rotates with them to transmit motion, torque, or bending moment. It is usually a metal rod, and each section can have different diameters. The parts that rotate in the machine are mounted on the shaft;

[0003] A Chinese patent with a search announcement number of CN209918903U discloses a high-strength and low-cost milling machine spindle structure.

[0004] The above technical solution includes a shaft rod, a connecting sleeve is installed on one side and the other side of the shaft rod, a magnet block is installed inside the connecting sleeve, a thread groove is provided on one side of the connecting sleeve, a thread is provided on the inner wall of the connecting sleeve, positioning blocks are installed on both ends of the shaft rod, a tungsten carbide layer is provided inside the shaft rod, a chromium layer is provided inside the tungsten carbide layer, a stainless steel layer is provided inside the chromium layer, and reinforcing ribs are embedded inside the stainless steel layer. Compared with the prior art, the utility model has the following beneficial effects: the spindle structure is provided with a tungsten carbide layer, a chromium layer, reinforcing ribs and a stainless steel layer, and is designed as a multi-layer metal composite, with low production cost and high strength;

[0005] However, in the above scheme, during the use of the shaft, whether it is in lubricating oil or exposed to the outside, the temperature of the shaft surface rises slowly with the continuous operation with other components. This temperature rise will accelerate the movement of molecules in the shaft and aggravate the metal fatigue of the shaft. Vibration is inevitable during the operation of the machine. The vibration acts on the shaft, which will damage the structure of the shaft in the long run.

[0006] To this end, we propose a new type of high-strength stainless steel shaft. Utility Model Content

[0007] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a new type of high-strength stainless steel shaft.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme, a new type of high-strength stainless steel shaft, including a shaft body, characterized in that: the shaft body is fixedly connected to the outside of the hexagonal reinforced shaft, a plurality of heat dissipation grooves are opened on the surface of the shaft body, the heat dissipation grooves are threaded, connecting columns are arranged at both ends of the shaft body, ventilation grooves are horizontally arranged in the connecting columns, and the ventilation grooves are connected to vertically arranged connecting grooves.

[0009] Preferably, a plurality of through holes are provided in the shaft body, and the through holes and the heat dissipation grooves are arranged alternately.

[0010] Preferably, a support section is fixedly connected in the ventilation slot, and the support section is cross-shaped.

[0011] Preferably, a shock absorbing groove is provided in the shaft body, a shock absorbing component is arranged in the shock absorbing groove, and the shock absorbing component array is arranged on six surfaces of the reinforcement shaft.

[0012] Preferably, the shock-absorbing assembly includes a fixed bottom plate fixedly connected to the reinforcing shaft, a shock-absorbing spring is fixedly connected to the upper end of the fixed bottom plate, a fixed top plate is fixedly connected to the upper end of the shock-absorbing spring, and the fixed top plate is fixedly connected to the shaft body.

[0013] Preferably, the upper end of the shock absorbing groove is connected to an oil filling groove, and an oil filling nozzle is fixedly connected to the oil filling groove.

[0014] Preferably, the shock absorbing groove is filled with hydraulic oil.

[0015] The utility model provides a new type of high-strength stainless steel shaft, which has the following improvements and advantages compared with the prior art:

[0016] (1) The utility model adopts water-inlet heat dissipation for the shaft body, and the shaft body is fixedly connected to the outside of the hexagonal reinforced shaft. The surface of the shaft body is provided with a plurality of heat dissipation grooves, and the heat dissipation grooves are threaded. Connecting columns are provided at both ends of the shaft body, and ventilation grooves are horizontally provided in the connecting columns. The ventilation grooves are connected to vertically provided connecting grooves. The shaft body is also provided with a plurality of through holes, and the through holes are staggered with the heat dissipation grooves. A support node is fixedly connected in the ventilation groove, and the support node is cross-shaped. When the shaft body rotates, whether it is lubricating oil or air, it will be thrown out by the heat dissipation grooves set by the threads, and then new lubricating oil or air is filled. As the heat flows in the heat dissipation grooves, the heat energy of the shaft body is taken away, so that the shaft body can be cooled. The through holes are set to discharge the heat energy deep in the shaft body as the medium flows. The ventilation grooves and connecting grooves are set to cool the connecting shaft to prevent the temperature of the connection with the component from being too high, and the function of the support node is to add cavity support to the ventilation groove.

[0017] (2) The utility model adopts a buffer spring to dissipate vibration. A damping groove is provided in the shaft body. A damping assembly is provided in the damping groove. The damping assembly array is provided on six surfaces of the reinforcing shaft. The damping assembly includes a fixed bottom plate fixedly connected to the reinforcing shaft. A damping spring is fixedly connected to the upper end of the fixed bottom plate. A fixed top plate is fixedly connected to the upper end of the damping spring. The fixed top plate is fixedly connected to the shaft body. An oil filling groove is connected to the upper end of the damping groove. An oil filling nozzle is fixedly connected to the oil filling groove. The damping groove is filled with hydraulic oil. When the device generates vibration by arranging the buffer spring, the vibration is transmitted to the fixed bottom plate and the fixed top plate, and then acts on the buffer spring. The buffer spring offsets the vibration to ensure the stability of the main structure of the device. The hydraulic oil filled in the damping groove does work on the vibration received by the shaft body and the damping spring, thereby accelerating the consumption of the vibration of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic structural stereogram of the shock absorbing component in the utility model.

[0021] Legend:

[0022] 10. Shaft body; 11. Connecting column; 12. Heat dissipation groove; 13. Through hole; 14. Ventilation groove; 15. Support joint; 16. Connecting groove; 17. Reinforced shaft; 20. Shock-absorbing assembly; 21. Shock-absorbing groove; 22. Oil filling groove; 23. Oil filling nozzle; 24. Fixed bottom plate; 25. Shock-absorbing spring; 26. Fixed top plate. DETAILED DESCRIPTION

[0023] Below, the invention is further described in conjunction with the accompanying drawings and specific embodiments: Example 1

[0024] See also Figure 1 and Figure 2Embodiment 1 is described, including a shaft body 10, characterized in that: the shaft body 10 is fixedly connected to the outside of a hexagonal reinforcing shaft 17, the hexagonal reinforcing shaft 17 has a stable structure and can strengthen the strength of the device, a plurality of heat dissipation grooves 12 are provided on the surface of the shaft body 10, the medium passes through the heat dissipation grooves 12 for heat dissipation, the heat dissipation grooves 12 are threaded, can increase the contact surface, and improve the cooling efficiency, connecting columns 11 are provided at both ends of the shaft body 10, the connecting columns 11 are used to connect external components, a ventilation groove 14 is horizontally provided in the connecting column 11, the medium enters from the ventilation groove 14, the ventilation groove 14 is connected to a vertically provided connecting groove 16, the medium flows out from the connecting groove 16, a plurality of through holes 13 are also provided in the shaft body 10, the through holes 13 are staggered with the heat dissipation grooves 12, the function of the through holes 13 is to conduct the heat inside the device out, a support section 15 is fixedly connected in the ventilation groove 14, the support section 15 is cross-shaped, and the setting of the support section 15 can strengthen the structural stability of the connecting shaft;

[0025] In the present embodiment, through the heat dissipation groove 12 arranged by the thread, when the shaft body 10 rotates, whether it is lubricating oil or air, it will be thrown out under the rotation of the shaft body 10, and then new lubricating oil or air will be filled. With the flow in the heat dissipation groove 12, the heat energy of the shaft body 10 is taken away, and the shaft body 10 can be cooled. The through hole 13 is arranged to discharge the heat energy deep in the shaft body 10 as the medium flows. The ventilation groove 14 and the connecting groove 16 are arranged to cool the connecting shaft to prevent the temperature of the connection with the component from being too high, and the function of the support node 15 is to provide cavity support for the ventilation groove 14. Example 2

[0026] See also Figure 1 and Figure 2 Embodiment 2 is described, including a damping groove 21 in the shaft body 10, a damping assembly 20 is arranged in the damping groove 21, and the damping assembly 20 is arranged in an array on the six surfaces of the reinforcing shaft 17, which can consume the vibration transmitted from the shaft body 10 from multiple angles. The damping assembly 20 includes a fixed bottom plate 24 fixedly connected to the reinforcing shaft 17, the bottom plate absorbs the vibration of the reinforcing shaft 17, and a damping spring 25 is fixedly connected to the upper end of the fixed bottom plate 24. The function of the damping spring 25 is to consume vibration. The upper end of the damping spring 25 is fixedly connected to a fixed top plate 26, the fixed top plate 26 absorbs the vibration of the shaft body 10, and the fixed top plate 26 is fixedly connected to the shaft body 10. The upper end of the damping groove 21 is connected to an oil filling groove 22, and an oil filling nozzle 23 is fixedly connected to the oil filling groove 22. The damping groove 21 is filled with hydraulic oil, and the hydraulic oil is filled into the damping groove 21 through the oil filling nozzle 23, thereby accelerating the consumption of vibration.

[0027] In this embodiment, by providing a buffer spring, when the device generates vibration, the vibration is transmitted to the fixed bottom plate 24 and the fixed top plate 26, and then acts on the buffer spring. The buffer spring offsets the vibration to ensure the stability of the main structure of the device. The hydraulic oil filled in the shock absorbing groove 21 performs work on the vibration received by the shaft body 10 and the shock absorbing spring 25, thereby accelerating the consumption of the vibration of the device.

Claims

1. A novel high-strength stainless steel shaft, comprising a shaft body (10), characterized in that: The shaft body (10) is fixedly connected to the outside of a hexagonal reinforcing shaft (17); a plurality of heat dissipation grooves (12) are provided on the surface of the shaft body (10); the heat dissipation grooves (12) are threadedly arranged; connecting columns (11) are provided at both ends of the shaft body (10); ventilation grooves (14) are horizontally arranged in the connecting columns (11); and the ventilation grooves (14) are connected to vertically arranged connecting grooves (16).

2. A new type of high-strength stainless steel shaft according to claim 1, characterized in that: A plurality of through holes (13) are also provided in the shaft body (10), and the through holes (13) and the heat dissipation grooves (12) are arranged in an alternating manner.

3. The novel high-strength stainless steel shaft according to claim 1 is characterized in that: A support section (15) is fixedly connected inside the ventilation slot (14), and the support section (15) is cross-shaped.

4. The novel high-strength stainless steel shaft according to claim 1 is characterized in that: A shock absorbing groove (21) is also provided in the shaft body (10), a shock absorbing component (20) is arranged in the shock absorbing groove (21), and the shock absorbing components (20) are arranged in an array on six surfaces of the reinforcing shaft (17).

5. A new type of high-strength stainless steel shaft according to claim 4, characterized in that: The shock absorbing assembly (20) comprises a fixed bottom plate (24) fixedly connected to the reinforcing shaft (17); a shock absorbing spring (25) is fixedly connected to the upper end of the fixed bottom plate (24); a fixed top plate (26) is fixedly connected to the upper end of the shock absorbing spring (25); and the fixed top plate (26) is fixedly connected to the shaft body (10).

6. A new type of high-strength stainless steel shaft according to claim 4, characterized in that: The upper end of the shock absorbing groove (21) is connected to an oil filling groove (22), and an oil filling nozzle (23) is fixedly connected inside the oil filling groove (22).

7. The novel high-strength stainless steel shaft according to claim 4 is characterized in that: The shock absorbing groove (21) is filled with hydraulic oil.

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