Wear-resistant high-strength mechanical main shaft

Abstract

The utility model discloses a wear-resistant high-strength mechanical main shaft, which relates to the field of mechanical manufacturing and comprises a sleeve, a sleeve shell is fixedly mounted on the left side of the sleeve, a pull sleeve is arranged in the sleeve, and a main shaft body penetrates through the interior of the pull sleeve; a fixing shell is arranged on the outer wall of the left side of the main shaft body and located in the sleeve shell in a sleeving mode, a stabilizing seat is fixedly installed on the left side of the fixing shell, a bearing seat is fixedly connected to the left side of the stabilizing seat, a lubricating oil tank is fixedly installed on the inner bottom wall of the bearing seat, and a shaft sleeve is fixedly connected to the interior of the bearing seat. By arranging the bearing balls, friction of rotation of the mechanical main shaft can be reduced, so that the wear-resistant effect is achieved, by arranging the rotating balls and the through holes, additional lubrication can be provided for the mechanical main shaft, the wear condition is further avoided, and by arranging the reinforcing layer, the wear-resistant layer and the anti-rust layer, the wear-resistant effect is improved. The mechanical main shaft has the effects of high strength, high rigidity, wear resistance and corrosion resistance.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical manufacturing technical field, concretely is a kind of high-strength mechanical main shaft of wear resistance. BACKGROUND

[0002] In the field of mechanical manufacturing, the mechanical main shaft is one of the core components of machine tool, with multiple functions such as supporting and transmitting motion, controlling posture and locking, and by reasonably selecting different types of mechanical main shaft, the needs of different processing occasions can be met.

[0003] The existing high-strength mechanical main shaft is prone to wear when in use, because the main shaft usually works in harsh environment, such as high temperature, high humidity, corrosive medium, etc., which can accelerate the wear process.

[0004] In order to overcome the above-mentioned defects, the prior art (application number: 201921743523.X, application date: 2019.10.17 Chinese patent) discloses a wear-resistant main shaft, which is processed with an annular oil groove on the outer surface of the main shaft, combined with a transversely arranged transverse connecting groove, which is beneficial to the addition of lubricating oil for full-surface lubrication, reduces the friction coefficient, and at the same time, a chromium plating layer is formed on the surface by electroplating, which can enhance the surface effect and improve the wear resistance. The main shaft can be installed and supported from both ends, which can ensure the stability of use, and the width and depth of the annular oil groove and the transverse connecting groove are reasonably set, which can not only ensure the oil supply lubrication effect, but also avoid reducing the structural strength, which is beneficial to stable use, and the use of graphene copper powder to form a copper layer is beneficial to processing and subsequent electroplating, which can ensure the electroplating thickness and surface roughness, improve the wear resistance, and be beneficial to use.

[0005] Although the prior art can solve the wear resistance of the main shaft, and the width and depth of the oil groove and the connecting groove can balance the lubrication effect and the structural strength, but in some extreme working conditions, the existence of the oil groove and the connecting groove may reduce the overall strength of the main shaft, resulting in poor wear resistance of the main shaft, and the main shaft does not have the effects of high strength, high rigidity, wear resistance and corrosion resistance.

[0006] Therefore, we propose a high-strength mechanical main shaft with wear resistance, which can well solve the above problems. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at providing a high-strength mechanical main shaft with wear resistance to solve the problem that in the above background technology, although the width and depth of the oil groove and the connecting groove are reasonably set to balance the lubrication effect and the structural strength, but in some extreme working conditions, the existence of the oil groove and the connecting groove may reduce the overall strength of the main shaft, resulting in poor wear resistance of the main shaft, and the main shaft does not have the effects of high strength, high rigidity, wear resistance and corrosion resistance.

[0008] To achieve the above object, the utility model provides the following technical scheme: a kind of high-strength mechanical main shaft of wear resistance, including sleeve, the left side of the sleeve is fixedly installed with sleeve shell, the inside of the sleeve is provided with pull sleeve, the inside of the pull sleeve is penetrated with main shaft body.

[0009] The outer wall of the left side of the main shaft body is located inside the sleeve shell and is sleeved with a fixed shell, the left side of the fixed shell is fixedly installed with a stabilizing seat, the left side of the stabilizing seat is fixedly connected with a bearing seat, and the inner bottom wall of the bearing seat is fixedly installed with a lubricating oil tank.

[0010] The inside of the bearing seat is fixedly connected with a shaft sleeve, a plurality of bearing balls are rotatably connected in the inside of the shaft sleeve, a protective sleeve is rotatably connected to the bottom of the bearing ball, a plurality of through holes are formed in the inside of the protective sleeve, and the protective sleeve is fixedly connected with the main shaft body.

[0011] As a preferred technical scheme of the present application, the left side of the lubricating oil tank is fixedly installed with an oil inlet pipe, and the oil inlet pipe penetrates the bearing seat at the end, the bottom of the lubricating oil tank is fixedly installed with a communication pipe, and the end of the communication pipe is fixedly connected with the shaft sleeve, and the inside of the communication pipe is movably connected with a rotating ball.

[0012] As a preferred technical scheme of the present application, the main shaft body includes a shaft rod, the outer wall of the shaft rod is wrapped with a reinforcing layer, the outer wall of the reinforcing layer is fixedly installed with a wear-resistant layer, and the outer wall of the wear-resistant layer is fixedly connected with a rust-proof layer.

[0013] As a preferred technical scheme of the present application, the rotating ball and the communication pipe are rotatably connected, the communication pipe is in communication with the lubricating oil tank and the shaft sleeve, and when the main shaft body is driven by external power, it will rotate in the shaft sleeve through the bearing ball.

[0014] As a preferred technical scheme of the present application, the bearing ball and the rotating ball are rotatably connected, and the bearing ball and the shaft sleeve and the protective sleeve are matched, and in the process of rotating the bearing ball, the rotating ball connected with it rotates in the communication pipe, so that the rotation of the rotating ball smears the lubricating oil in the communication pipe on the contact surface of the bearing ball, thereby achieving lubrication.

[0015] As a preferred technical scheme of the present application, the protective sleeve and the shaft sleeve are rotatably connected, and the protective sleeve and the through hole are fixedly connected and integrally arranged, and the excess lubricating oil flows to the main shaft body through the plurality of through holes formed on the protective sleeve, thereby providing additional lubrication for the mechanical main shaft and avoiding wear and tear.

[0016] As a preferred technical scheme of the present application, the wear-resistant layer is tightly attached to both the reinforcing layer and the rust-proof layer, the wear-resistant layer is provided as a wear-resistant alloy coating, the reinforcing layer is made of high-strength steel, and the rust-proof layer is provided as a zinc plating coating, the rust-proof layer provided as the zinc plating coating is tightly attached to the outer wall of the wear-resistant layer, has good corrosion resistance, and can prevent the mechanical main shaft from being eroded by moisture, oxygen and other corrosive substances.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] The wear-resistant high-strength mechanical main shaft is provided with the bearing ball, which can reduce the friction of the mechanical main shaft in rotation, thereby achieving the wear-resistant effect, and is provided with the rotating ball and the through hole, which can provide additional lubrication for the mechanical main shaft, further avoid wear and tear, and is provided with the reinforcing layer, the wear-resistant layer and the rust-proof layer, which can achieve the effects of high strength, high rigidity, wear resistance and corrosion resistance of the mechanical main shaft, and the specific content is shown as follows:

[0019] 1. The bearing ball is provided, which cooperates with the oil inlet pipe, the lubricating oil tank, the shaft sleeve and the bearing ball to reduce the friction between the main shaft body and the shaft sleeve, improve the efficiency and stability of the mechanical main shaft in rotation, and thereby achieve the wear-resistant effect.

[0020] Further, the rotating ball is provided, which cooperates with the bearing ball, the rotating ball and the communication pipe to achieve lubrication, further reduce the friction and wear between the main shaft body and the shaft sleeve, and prolong the service life of the mechanical main shaft.

[0021] Further, the through hole is provided, which cooperates with the protective sleeve and the through hole to provide additional lubrication for the mechanical main shaft and avoid wear and tear.

[0022] 2. The reinforcing layer is provided, which cooperates with the shaft rod to provide additional strength and rigidity to prevent the mechanical main shaft from being deformed or broken when bearing high load.

[0023] Further, the wear-resistant layer and the rust-proof layer are provided, which cooperate with each other to prevent the mechanical main shaft from being eroded by moisture, oxygen and other corrosive substances, thereby maintaining the surface finish and performance stability of the mechanical main shaft. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front view structure schematic diagram of the present application;

[0025] Figure 2 It is a sleeve and sleeve shell cross-sectional structure schematic diagram of the present application;

[0026] Figure 3 It is a fixed shell, stabilizing seat and bearing seat partial cross-sectional structure schematic diagram of the present application;

[0027] Figure 4 It is a local section structure schematic view of the bearing seat of the utility model;

[0028] Figure 5 It is a local section structure schematic view of the shaft sleeve of the utility model;

[0029] Figure 6 It is a local structure schematic view of the protective sleeve and the bearing ball of the utility model;

[0030] Figure 7 It is a local section structure schematic view of the main shaft body of the utility model.

[0031] In the figure: 1, sleeve; 2, shell; 3, pull sleeve; 4, main shaft body; 5, fixed shell; 6, stabilizing seat; 7, bearing seat; 8, lubricating oil tank; 9, oil inlet pipe; 10, shaft sleeve; 11, communication pipe; 12, rotating ball; 13, bearing ball; 14, protective sleeve; 15, through hole; 16, shaft rod; 17, reinforcing layer; 18, wear-resistant layer; 19, anti-rust layer. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Please refer to Figures 1-7 The utility model provides the following technical solutions:

[0034] Embodiment one: in order to solve the problem that the new type main shaft in the market although the width and depth of the oil groove and the connecting groove are reasonably set to balance the lubricating effect and the structural strength, but in some extreme working conditions, the existence of the oil groove and the connecting groove may reduce the overall strength of the main shaft, so that the wear resistance of the main shaft is poor, which can refer to the attached Figure 1 and the attached Figure 6, including sleeve 1, sleeve 1 is fixedly installed with sleeve 2 on the left side, the inside of sleeve 1 is provided with a pull sleeve 3, the inside of pull sleeve 3 is penetrated by main shaft body 4; the outer wall of the left side of main shaft body 4 is sleeved with fixed shell 5 inside sleeve 2, the left side of fixed shell 5 is fixedly installed with stable seat 6, the left side of stable seat 6 is fixedly connected with bearing seat 7, the inner bottom wall of bearing seat 7 is fixedly installed with lubricating oil tank 8; bearing seat 7 is fixedly connected with shaft sleeve 10 inside, shaft sleeve 10 is rotatably connected with a plurality of bearing balls 13 inside, the bottom of bearing ball 13 is rotatably connected with protective sleeve 14, a plurality of through holes 15 are formed in the inside of protective sleeve 14, and protective sleeve 14 is fixedly connected with main shaft body 4. The left side of lubricating oil tank 8 is fixedly installed with oil inlet pipe 9, and the end of oil inlet pipe 9 penetrates bearing seat 7, the bottom of lubricating oil tank 8 is fixedly installed with communication pipe 11, and the end of communication pipe 11 is fixedly connected with shaft sleeve 10, and communication pipe 11 is movably connected with rotating ball 12 inside. Rotating ball 12 and communication pipe 11 are rotatably connected, communication pipe 11 is in communication with lubricating oil tank 8 and shaft sleeve 10. Bearing ball 13 and rotating ball 12 are rotatably connected, bearing ball 13 and shaft sleeve 10 and protective sleeve 14 are matched. Protective sleeve 14 and shaft sleeve 10 are rotatably connected, protective sleeve 14 and through hole 15 are fixedly connected and integrally arranged.

[0035] The lubricating oil is added into lubricating oil tank 8 through oil inlet pipe 9 by the staff, so that when main shaft body 4 is driven by external power after adding appropriate amount of lubricating oil, it rotates in shaft sleeve 10 through bearing ball 13, and the existence of bearing ball 13 reduces the friction between main shaft body 4 and shaft sleeve 10, improves the efficiency and stability of rotation, so as to achieve the effect of wear resistance, and the lubricating oil in lubricating oil tank 8 enters communication pipe 11, and in the process of rotation of bearing ball 13, rotating ball 12 connected with bearing ball 13 rotates in communication pipe 11, so that the rotation of rotating ball 12 wipes the lubricating oil in communication pipe 11 to the contact surface of bearing ball 13, so as to realize lubrication, effectively reduce the friction and wear between main shaft body 4 and shaft sleeve 10, prolong the service life of mechanical main shaft, and the excess lubricating oil flows to main shaft body 4 through a plurality of through holes 15 formed in protective sleeve 14, providing additional lubrication for mechanical main shaft and avoiding wear.

[0036] Example two: the mechanical main shaft can realize high strength, high rigidity, wear resistance and corrosion resistance, and can refer to the attached Figure 1 -attached Figure 2 and attached Figure 7The main shaft body 4 comprises a shaft rod 16, an outer wall of the shaft rod 16 is wrapped with a reinforcing layer 17, an outer wall of the reinforcing layer 17 is fixedly installed with a wear-resistant layer 18, and an outer wall of the wear-resistant layer 18 is fixedly connected with a rust-proof layer 19. The wear-resistant layer 18 is tightly attached to both the reinforcing layer 17 and the rust-proof layer 19, the wear-resistant layer 18 is provided as a wear-resistant alloy coating, the reinforcing layer 17 is made of high-strength steel, and the rust-proof layer 19 is provided as a zinc plating coating.

[0037] By taking the shaft rod 16 as the core part of the mechanical main shaft, the reinforcing layer 17 is tightly attached to the outer wall of the shaft rod 16, the reinforcing layer 17 is made of high-strength steel, thereby providing additional strength and rigidity for the mechanical main shaft to prevent deformation or fracture of the mechanical main shaft under high load, the wear-resistant layer 18 provided as a wear-resistant alloy coating is tightly attached to the outer wall of the reinforcing layer 17, has excellent wear resistance, can resist external friction and wear, thereby protecting the mechanical main shaft from damage, and the rust-proof layer 19 provided as a zinc plating coating is tightly attached to the outer wall of the wear-resistant layer 18, has good corrosion resistance, can prevent the mechanical main shaft from being eroded by moisture, oxygen and other corrosive substances, thereby maintaining the surface smoothness and performance stability of the mechanical main shaft, and achieving the effects of high strength, high rigidity, wear resistance and corrosion resistance of the mechanical main shaft.

[0038] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0039] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A wear-resistant, high-strength mechanical spindle, comprising a sleeve (1), a housing (2) fixedly installed on the left side of the sleeve (1), a pull sleeve (3) provided inside the sleeve (1), and a spindle body (4) penetrating inside the pull sleeve (3). Its features are: The outer wall of the left side of the main shaft body (4) is fitted with a fixed shell (5) inside the sleeve (2). A stabilizing seat (6) is fixedly installed on the left side of the fixed shell (5). A bearing seat (7) is fixedly connected to the left side of the stabilizing seat (6). A lubricating oil tank (8) is fixedly installed on the inner bottom wall of the bearing seat (7). The bearing housing (7) is fixedly connected to a bushing (10), and a number of bearing balls (13) are rotatably connected inside the bushing (10). A protective sleeve (14) is rotatably connected to the bottom of the bearing balls (13). A number of through holes (15) are opened inside the protective sleeve (14), and the protective sleeve (14) is fixedly connected to the main shaft body (4).

2. The wear-resistant, high-strength mechanical spindle according to claim 1, characterized in that: An oil inlet pipe (9) is fixedly installed on the left side of the lubricating oil tank (8), and the end of the oil inlet pipe (9) passes through the bearing seat (7). A connecting pipe (11) is fixedly installed at the bottom of the lubricating oil tank (8), and a bushing (10) is fixedly connected to the end of the connecting pipe (11). A rotating ball (12) is movably connected inside the connecting pipe (11).

3. The wear-resistant, high-strength mechanical spindle according to claim 1, characterized in that: The main shaft body (4) includes a shaft (16), the outer wall of the shaft (16) is wrapped with a reinforcing layer (17), the outer wall of the reinforcing layer (17) is fixedly installed with a wear-resistant layer (18), and the outer wall of the wear-resistant layer (18) is fixedly connected with a rust-proof layer (19).

4. The wear-resistant, high-strength mechanical spindle according to claim 2, characterized in that: The rotating ball (12) is rotatably connected to the connecting pipe (11), and the connecting pipe (11) is connected to the lubricating oil tank (8) and the bushing (10).

5. A wear-resistant, high-strength mechanical spindle according to claim 1, characterized in that: The bearing ball (13) and the rotating ball (12) are rotatably connected, and the bearing ball (13) is matched with the bushing (10) and the protective sleeve (14).

6. A wear-resistant, high-strength mechanical spindle according to claim 2, characterized in that: The protective sleeve (14) and the bushing (10) are rotatably connected, and the protective sleeve (14) and the through hole (15) are fixedly connected as an integrated unit.

7. A wear-resistant, high-strength mechanical spindle according to claim 3, characterized in that: The wear-resistant layer (18) is tightly bonded to the reinforcing layer (17) and the rust-proof layer (19), and the wear-resistant layer (18) is a wear-resistant alloy coating. The reinforcing layer (17) is made of high-strength steel, and the rust-proof layer (19) is a galvanized coating.

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