Shaft sleeve for mechanical equipment

Abstract

The shaft sleeve for the mechanical equipment comprises a shaft sleeve body, the shaft sleeve body comprises a first shaft sleeve, a second shaft sleeve, a third shaft sleeve and a side sleeve, the bottom of the first shaft sleeve is connected with the top of the second shaft sleeve, the bottom of the second shaft sleeve is connected with the top of the third shaft sleeve, and the bottom of the third shaft sleeve is connected with the side sleeve. The outer wall of the second shaft sleeve and the outer walls of the first shaft sleeve and the third shaft sleeve form outer grooves, the inner wall of the second shaft sleeve and the inner walls of the first shaft sleeve and the third shaft sleeve form inner grooves, the oil injection holes penetrate through the second shaft sleeve and are symmetrically arranged, and oil storage holes are formed in the first shaft sleeve and the third shaft sleeve in an axial array mode. The surface of the edge sleeve is coated with a coating, oil can be discharged when the edge sleeve is heated, the edge sleeve has a self-lubricating effect, a sealing groove is formed in the bottom of the edge sleeve, and an oil seal is installed in the sealing groove. The positions and the number of the oil storage holes can be reasonably set according to the size of the shaft sleeve, the oil storage amount can be increased while the structural strength of the shaft sleeve is not affected, lubrication is more uniform, and the lubrication effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of bushing technology, and in particular to a bushing for mechanical equipment. Background Technology

[0002] A bushing is a component of a bearing. Bearings, as important parts that mate with rotating shafts, are widely used in many mechanical devices, mainly to protect the shaft and reduce friction and wear.

[0003] Patent document CN211648796U discloses a readily machinable bucket bushing with uniform lubrication. The bushing includes a main body with an annular groove in the middle of its outer wall. The inner wall of the main body has four interconnected, circumferentially arranged rhomboid lubrication grooves. Each rhomboid lubrication groove has its center located on the annular groove and has an oil inlet at its center. Each rhomboid lubrication groove has upper, lower, left, and right diagonals, and both its left and right diagonals are connected to their adjacent oil inlets. This invention solves the problems of uneven lubrication and high machining difficulty in existing bucket bushings.

[0004] In the above solutions, the internal diamond-shaped lubrication grooves of the bushing facilitate machining. However, both diamond-shaped and annular lubrication grooves are subject to constraints in terms of size, shape, and position when designing the grooves. The densely interconnected diamond-shaped lubrication grooves inside the bushing can easily affect the structural strength of the bushing. On the other hand, the ordinary figure-eight lubrication grooves do not distribute grease evenly enough and do not store enough oil. In addition, the bushing does not have a protective structure, which makes it easy for oil to leak and dust to enter, affecting the performance of the bushing and the shaft. Therefore, it is necessary to provide a bushing for mechanical equipment to solve the shortcomings of the existing technology. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a bushing for mechanical equipment.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A bushing for mechanical equipment includes a bushing body, which comprises a first bushing, a second bushing, a third bushing, and a side bushing. The first bushing, the second bushing, the third bushing, and the side bushing are integrally formed. The bottom of the first bushing is connected to the top of the second bushing, the bottom of the second bushing is connected to the top of the third bushing, and the bottom of the third bushing is connected to the side bushing. The inner and outer diameters of the first and third bushings are the same. The inner diameter of the second bushing is larger than that of the first bushing, and the outer diameter of the second bushing is smaller than that of the first bushing. The outer wall of the second bushing forms an outer groove with the outer walls of the first and third bushings, and the inner wall of the second bushing forms an inner groove with the inner walls of the first and third bushings. Oil injection holes are symmetrically arranged through the second bushing. The first and third bushings have oil storage holes inside. The bottom of the side bushing has a sealing groove, and an oil seal is installed in the sealing groove.

[0008] The present invention is further configured such that the top of the outer wall of the first bushing is provided with a chamfer.

[0009] The present invention is further provided with a chamfer two at the connection between the outer wall of the first bushing and the outer wall of the second bushing, and a chamfer three at the connection between the outer wall of the second bushing and the outer wall of the third bushing.

[0010] The present invention is further provided with a chamfer four at the connection between the inner wall of the first bushing and the inner wall of the second bushing, and a chamfer five at the connection between the inner wall of the second bushing and the inner wall of the third bushing.

[0011] The present invention is further provided that the outer groove, the inner groove, the oil storage hole and the oil injection hole are all coated with a coating.

[0012] The present invention is further configured such that the oil storage holes are arranged in an axial array within the first and third bushings.

[0013] The present invention is further configured such that the bushing body is made of alloy steel.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1. The bushing inner wall array of this utility model is provided with oil storage holes. The oil storage holes can not only store oil, but also have a coating on their surface that releases oil when heated, thus having a self-lubricating effect.

[0016] 2. This utility model rationally sets the position and number of oil storage holes according to the bushing size, which can increase the oil storage capacity without affecting the structural strength of the bushing, making the lubrication more uniform and improving the lubrication effect.

[0017] 3. The bushing of this utility model is provided with an oil seal on the outside. The oil seal can reduce the occurrence of oil leakage and dust ingress, and improve the performance of the bushing and shaft. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is the front view of this utility model.

[0020] Figure 3 This is a cross-sectional view of the present invention.

[0021] Figure 4 This is a cross-sectional view of another type of bushing of this utility model.

[0022] Figure 5 This is another type of bushing main view of this utility model. Figure 1 .

[0023] Figure 6 This is another type of bushing main view of this utility model. Figure 2 .

[0024] In the figure, 1. Bushing body, 2. First bushing, 3. Second bushing, 4. Third bushing, 5. Side sleeve, 6. Outer groove, 7. Inner groove, 8. Oil injection hole, 9. Oil reservoir hole, 10. Sealing groove, 11. Oil seal, 12. Chamfer 1, 13. Chamfer 2, 14. Chamfer 3, 15. Chamfer 4, 16. Chamfer 5. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] Example 1:

[0027] In this embodiment, as Figure 1-4As shown, this utility model proposes a bushing for mechanical equipment, including a bushing body 1. The bushing body includes a first bushing 2, a second bushing 3, a third bushing 4, and a side bushing 5. The first bushing, second bushing, third bushing, and side bushing are integrally formed. The bottom of the first bushing is connected to the top of the second bushing, the bottom of the second bushing is connected to the top of the third bushing, and the bottom of the third bushing is connected to the side bushing. The inner and outer diameters of the first and third bushings are the same. The inner diameter of the second bushing is larger than that of the first bushing, and the outer diameter of the second bushing is smaller than that of the first bushing. The outer wall of the second bushing is flush with the first bushing. The outer wall of the first and third bushings forms an outer groove 6, and the inner wall of the second bushing forms an inner groove 7 with the inner walls of the first and third bushings. The oil injection hole 8 is symmetrically arranged through the second bushing. The first and third bushings are provided with oil storage holes 9. The position and number of oil storage holes are reasonably set according to the bushing size, which can increase the oil storage capacity without affecting the structural strength of the bushing, making the lubrication more uniform and improving the lubrication effect. The bottom of the side bushing is provided with a sealing groove 10, and the oil seal 11 is installed in the sealing groove. The oil seal can reduce the occurrence of oil leakage and dust ingress, and improve the performance of the bushing and shaft.

[0028] In this embodiment, the top of the outer wall of the first bushing is provided with a chamfer 12, and the angle of the chamfer 1 is 45 degrees.

[0029] In this embodiment, it is further configured that the connection between the outer wall of the first bushing and the outer wall of the second bushing is provided with chamfer 2 13, and the connection between the outer wall of the second bushing and the outer wall of the third bushing is provided with chamfer 3 14, and the angle of chamfer 2 and chamfer 3 is 45 degrees.

[0030] In this embodiment, it is further configured that the connection between the inner wall of the first bushing and the inner wall of the second bushing is provided with chamfer 4 15, and the connection between the inner wall of the second bushing and the inner wall of the third bushing is provided with chamfer 5 16, and the angle of chamfer 4 and chamfer 5 is 45 degrees.

[0031] In this example, chamfer two, chamfer three, chamfer four, and chamfer five can also be set as arc-shaped, that is, both the outer and inner grooves are arc-shaped grooves. Arc-shaped grooves help reduce stress concentration, have stronger durability, and extend the service life of mechanical equipment, but the processing difficulty and precision are relatively high.

[0032] In this embodiment, the outer tank, inner tank, oil storage hole, and oil injection hole are all coated with a coating material, which can be a graphite coating that produces oil when heated and has a self-lubricating effect.

[0033] In this embodiment, the oil storage holes are further configured in an axial array within the first and third bushings, which can provide... Figure 3 Generally, its axial array can also be Figure 4 A typical staggered axial array.

[0034] In this embodiment, the bushing body is further configured to be made of alloy steel. Alloy steel has the advantages of high strength, corrosion resistance, good toughness and wear resistance, and is suitable for various engineering fields with high requirements.

[0035] In this embodiment, the outer edge of the sleeve can be provided with positioning holes, which are not shown in the figure. The positioning holes are connected to the assembly by bolts to enhance the stability of the sleeve body and facilitate disassembly and assembly.

[0036] Example 2:

[0037] In this embodiment, as Figure 5 As shown, the difference from Embodiment 1 is that no side sleeve is provided. During installation, no complicated adjustments and positioning are required. The installation process is usually simpler and more direct, which helps to reduce installation costs and time, improve the overall installation efficiency of the equipment, and is suitable for more different application scenarios. It has strong compatibility. At the same time, since the side sleeve is eliminated, production is simpler and processing efficiency is higher.

[0038] Example 3:

[0039] In this embodiment, as Figure 6 As shown, the difference from Embodiment 1 is that a beveled seat is provided between the third bushing and the side bushing. The first bushing, the second bushing, the third bushing, the beveled seat and the side bushing are integrally formed. The bushing body is a custom style. Due to the presence of the beveled seat, it has a positioning function during installation, making installation and positioning more convenient, but the installation conditions are more demanding.

[0040] In the description of this utility model, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A bearing bush for a mechanical device, comprising a bearing bush body, characterized in that, The sleeve body comprises a first sleeve, a second sleeve, a third sleeve and a side sleeve, the first sleeve, the second sleeve, the third sleeve and the side sleeve are integrally formed, the bottom of the first sleeve is connected with the top of the second sleeve, the bottom of the second sleeve is connected with the top of the third sleeve, the bottom of the third sleeve is connected with the side sleeve, the inner diameter and the outer diameter of the first sleeve and the third sleeve are consistent, the inner diameter of the second sleeve is larger than that of the first sleeve, the outer diameter of the second sleeve is smaller than that of the second sleeve, the outer wall of the second sleeve and the outer wall of the first sleeve and the third sleeve form an outer groove, the inner wall of the second sleeve and the inner wall of the first sleeve and the third sleeve form an inner groove, the oil injection holes are symmetrically arranged through the second sleeve, the oil storage holes are arranged inside the first sleeve and the third sleeve, the bottom of the side sleeve is provided with a sealing groove, and the oil seal is arranged in the sealing groove.

2. The shaft sleeve for a mechanical device according to claim 1, wherein The top of the outer wall of the first sleeve is provided with a chamfer one.

3. The shaft sleeve for a mechanical device according to claim 1, wherein The connecting part of the outer wall of the first sleeve and the outer wall of the second sleeve is provided with a chamfer two, and the connecting part of the outer wall of the second sleeve and the outer wall of the third sleeve is provided with a chamfer three.

4. The shaft sleeve for a mechanical device according to claim 1, wherein The connecting part of the inner wall of the first sleeve and the inner wall of the second sleeve is provided with a chamfer four, and the connecting part of the inner wall of the second sleeve and the inner wall of the third sleeve is provided with a chamfer five.

5. The shaft sleeve for a mechanical device according to claim 1, wherein The outer groove, the inner groove, the oil storage hole and the oil injection hole are coated with a coating.

6. The shaft sleeve for a mechanical device according to claim 1, wherein The oil storage holes are arranged in the first sleeve and the third sleeve in an axial array.

7. The shaft sleeve of claim 1, wherein The material of the sleeve body is alloy steel.

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