High-abrasion-resistant main shaft of high-packaging machine

Abstract

The utility model discloses a high-wear-resistant main shaft of a high-packaging machine, which relates to the technical field of wear resistance of main shafts and comprises a main shaft body and a sheath, the sheath is fixedly connected outside the main shaft body, a shell is fixedly connected outside the sheath, a groove is formed inside the shell, a sealed liquid conveying pipe is fixedly connected inside the groove, and the sealed liquid conveying pipe is fixedly connected with the sheath. The protective sleeve is located between the shell and the main shaft body and plays a role in limiting the main shaft body, the sealing liquid conveying pipe penetrates through the interior of the shell, the sealing liquid conveying pipe is made of corrosion-resistant materials and is good in sealing effect, and lubricating agents are conveyed to the operating shaft through the sealing liquid conveying pipe. When the main shaft operates, compressed air in the air shroud ring is exhausted and contracted, and the convection channel can take away part of heat of the main shaft by utilizing gas of the static pressure gas bearing to circulate in the main shaft, so that the main shaft can maintain normal temperature during operation.

Description

Technical Field

[0001] The utility model relates to the technical field of spindle wear resistance, in particular to a high-wear-resistant high-wrapper spindle. Background Technique

[0002] The machine tool spindle refers to the shaft that drives the workpiece or tool to rotate on the machine tool. It usually consists of a spindle, bearings and transmission parts (gears or belt pulleys) and other components to form a spindle unit. In the machine, it is mainly used to support transmission parts such as gears and belt pulleys, and transmit motion and torque, such as the machine tool spindle; some are used to clamp workpieces, such as mandrels. Except for machine tools with linear main motions such as planers and broaching machines, most machine tools have spindle units. The motion accuracy and structural stiffness of the spindle unit are important factors determining the machining quality and cutting efficiency.

[0003] For example, a spindle with the application number CN201911398954.1 includes a housing, a floating cylinder block, a piston, a shaft core, a pull rod assembly and a tool pull compression elastic member. The floating cylinder block is floatingly connected to the housing, the piston is slidably connected to the floating cylinder block, the piston is in a cylindrical shape, the shaft core is slidably penetrated through the piston, the shaft core is in a cylindrical shape, the pull rod assembly includes a pull rod and a pull rod seat, the pull rod seat is coaxially fixedly connected to the pull rod, the pull rod seat is slidably penetrated through the shaft core, and the tool pull compression elastic member is used to push the pull rod seat and the piston together to the upper extreme position to realize tool pulling. A reverse force receiving portion is provided on the outer wall of the shaft core. The upper inner wall of the floating cylinder block and the outer wall of the piston form an oil pressure chamber. The oil pressure in the oil pressure chamber can drive the piston to move downward, so that the piston compresses the tool pull compression elastic member, thereby causing the pull rod to move downward. The compressed tool pull compression elastic member exerts a reverse acting force on the floating cylinder block, causing the floating cylinder block to move upward relative to the housing and push against the reverse force receiving portion. However, the bending strength and wear resistance effect of the outer shell of this spindle are poor, which easily leads to the loss of accuracy, reduces the service life of the spindle, and at the same time, there will be jams inside the spindle, and the lubricant is easy to lose, resulting in insufficient lubrication, which will cause excessive friction, increase the heat and noise during the operation of the spindle. Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a high-wear-resistant high-wrapper spindle is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-wear-resistant high-wrapper spindle to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A high-wear-resistant high-wrapper spindle includes a spindle main body and a sheath. The outside of the [spindle main body] is fixedly connected with a sheath, and the outside of the sheath is fixedly connected with a housing. A groove is opened inside the housing, and a sealed infusion pipe is fixedly connected inside the groove.

[0006] It should be noted that there is a missing part in the description of the structure in the original text at the end of item . I have added "[spindle main body]" in the translation to make the sentence structure complete. If this is not what you need, please adjust it according to the actual situation.Preferably, the outer shell protects a reinforcing layer fixedly connected to an outer position of the protective sleeve, and one side of the reinforcing layer is fixedly connected to a heat conducting layer, and the outside of the heat conducting layer is fixedly connected to a wear-resistant layer.

[0007] Preferably, a clamping ring is provided on the outside of the shell, and a running shaft is rotatably connected to the inside of the shell.

[0008] Preferably, the outer part of the shell is fixedly connected to a bearing shaft, and the inner part of the shell is fixedly connected to a convection channel.

[0009] Preferably, one side of the bearing shaft is fixedly connected to a rear end cover, and one side of the rear end cover is fixedly connected to a driving pulley.

[0010] Preferably, one side of the driving pulley is fixedly connected to a bottom end block, and one side of the bottom end block is fixedly connected to a sealing air mold.

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

[0012] 1. The utility model prolongs the service life of the high-charging machine main shaft through the internal structure of the shell and the setting of the sealed infusion tube, and replaces the ordinary support block inside the shell with a reinforcement layer. The reinforcement layer can not only increase the structural lateral stiffness and control the structural displacement, but also adjust the distribution ratio of the overturning moment between the core tube and the shell. The heat-conducting layer can effectively discharge heat to avoid the temperature increase affecting the working accuracy of the bearing. The wear-resistant layer improves the surface quality of the shell and reduces the phenomenon of surface scratches and burrs. The bending strength and wear resistance of the traditional main shaft shell are poor, which easily leads to loss of accuracy and reduced service life of the main shaft. At the same time, the main shaft will be stuck, and the lubricant is easy to lose, resulting in insufficient lubrication, which will lead to excessive friction and increase the heat and noise when the main shaft is running. The intersection of the sealed infusion tube and the operating shaft of the utility model is provided with a sealing air mold to ensure the sealing of the delivery tube, so that the lubricant can fully flow into the inside of the operating shaft to ensure the normal operation of the main shaft.

[0013] 2. The utility model can make the connection between the outer shell and the sheath tighter by setting the clamping ring and the convection channel, tighten the main shaft to prevent water from entering, and when the main shaft is running, the compressed gas in the air belt is discharged to shrink it. The convection channel can use the gas of the static pressure gas bearing to circulate inside the main shaft to take away part of the heat of the main shaft, so that the main shaft maintains a normal temperature when running. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the internal structure of the main body of the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the main body of the utility model;

[0016] Figure 3This is a schematic structural view of the housing 3 of the present utility model;

[0017] Figure 4 This is the present utility model Figure 2 of the top view structural schematic diagram.

[0018] In the figure: 1, main shaft body; 2, sheath; 3, housing; 301, strengthening layer; 302, heat-conducting layer; 303, wear-resistant layer; 4, sealed infusion tube; 5, compression ring; 6, rotating shaft; 7, bearing shaft; 8, convection channel; 9, rear end cover; 10, drive pulley; 11, bottom block; 12, sealed air mold. Specific embodiments

[0019] 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 of 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.

[0020] As Figure 1 - Figure 2 shown, a highly wear-resistant main shaft of a high wrapper includes a main shaft body 1 and a sheath 2. The sheath 2 is fixedly connected to the outside of the main shaft body 1, and the housing 3 is fixedly connected to the outside of the sheath 2. A groove is provided inside the housing 3, and a sealed infusion tube 4 is fixedly connected to the inside of the groove. The sheath 2 is located between the housing 3 and the main shaft body 1 and plays a role in restricting the main shaft body 1. The sealed infusion tube 4 penetrates through the inside of the housing 3. The sealed infusion tube 4 is made of corrosion-resistant material and has good sealing effect. Lubricant is conveyed to the rotating shaft 6 through the sealed infusion tube 4 to ensure the smooth operation of the rotating shaft 6.

[0021] As Figure 3 - Figure 4 shown, the housing 3 protects and fixedly connects to a strengthening layer 301 at the outside position of the protective sleeve 2, and a heat-conducting layer 302 is fixedly connected to one side of the strengthening layer 301. A wear-resistant layer 303 is fixedly connected to the outside of the heat-conducting layer 302. The strengthening layer 301 has the same curvature as the housing 3 to increase the bending resistance of the housing 3. Fine pores are provided inside the heat-conducting layer 302 to discharge the heat of the main shaft body 1. The wear-resistant layer 303 prevents the main shaft from rubbing against external substances, resulting in wear on the surface of the main shaft.

[0022] Furthermore, a compression ring 5 is provided on the outside of the housing 3, and a rotating shaft 6 is rotatably connected to the inside of the housing 3. A bearing shaft 7 is fixedly connected to the outside of the housing 3, and a convection channel 8 is fixedly connected to the inside of the housing 3. The compression ring 5 is mainly composed of a fixed ring and a rubber air belt. During operation, it prevents water from entering. The convection channels 8 are symmetrically distributed on the upper and lower sides of the main shaft body 1 and can use gas circulation to discharge heat.

[0023] Further, one side of the bearing shaft 7 is fixedly connected to a rear end cover 9, and one side of the rear end cover 9 is fixedly connected to a drive pulley 10. One side of the drive pulley 10 is fixedly connected to a bottom end block 11, and one side of the bottom end block 11 is fixedly connected to a sealing air mold 12. Besides dust-proofing and sealing the rear end cover 9, it is also often used in cooperation with seals to achieve the sealing effect. At the same time, it can transmit torque and buffer and absorb shock, making the rotation of the main shaft stable. The sealing air mold 12 improves the sealing performance of the sealed infusion tube 4 and enhances the sealing effect of the lubricant.

[0024] Working principle: When using this highly wear-resistant high-wrapper main shaft, first, the sheath 2 connects the main shaft body 1 to the outer shell 3. The outer shell 3 is composed of a strengthening layer 301, a heat-conducting layer 302, and a wear-resistant layer 303. The sealed infusion tube 4 penetrates through the inside of the outer shell 3 to convey lubricant to the rotating shaft 6, ensuring the smoothness of the rotating shaft 6 during movement. The pressing ring 5 plays a waterproof role when the main shaft body 1 is working. The rear end cover 9 on one side of the bearing shaft 7 and the bottom end block 11 cooperate with each other to improve the rotational stability of the main shaft body 1. A convection channel 8 is provided inside the outer shell 3 to discharge heat by air circulation. Finally, the sealing air mold 12 improves the sealing performance of the sealed infusion tube 4. This is the working principle of this highly wear-resistant high-wrapper main shaft.

Claims

1. A high-wear-resistant main shaft of a high-wrapper, comprising a main shaft body (1) and a sheath (2), characterized in that, A sheath (2) is fixedly connected to the outside of the main spindle body (1), and a housing (3) is fixedly connected to the outside of the sheath (2). A groove is formed inside the housing (3), and a sealed infusion tube (4) is fixedly connected inside the groove.

2. A highly wear-resistant high wrapper spindle according to claim 1, characterized in that, The housing (3) protects a reinforcing layer (301) fixedly connected to the outside of the protective sleeve (2), and a heat-conducting layer (302) is fixedly connected to one side of the reinforcing layer (301). A wear-resistant layer (303) is fixedly connected to the outside of the heat-conducting layer (302).

3. A highly wear-resistant high-wrapper spindle according to claim 1, characterized in that, A compression ring (5) is arranged on the outside of the housing (3), and a rotating shaft (6) is rotatably connected inside the housing (3).

4. A high-wear-resistant high-package machine spindle according to claim 1, characterized in that, A bearing shaft (7) is fixedly connected to the outside of the housing (3), and a convection channel (8) is fixedly connected inside the housing (3).

5. The high wear-resistant high wrapper spindle according to claim 4, characterized in that, A rear end cover (9) is fixedly connected to one side of the bearing shaft (7), and a driving belt pulley (10) is fixedly connected to one side of the rear end cover (9).

6. The high wear-resistant high wrapping machine main shaft according to claim 5, characterized in that, A bottom block (11) is fixedly connected to one side of the driving belt pulley (10), and a sealed air mold (12) is fixedly connected to one side of the bottom block (11).

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