Bearing replacement device

Abstract

The utility model relates to the technical field of bearings, and provides a bearing replacement device which comprises a shell, the rotating layer is rotationally arranged in the shell; the abutting layer is rotationally arranged in the rotating layer; the shaft body is arranged in the abutting layer. By means of the technical scheme, the problem that in the prior art, a bearing seat used in liquid is prone to abrasion is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, and in particular to a bearing replacement device. Background Art

[0002] As a vital component of mechanical structure, the background technology development, technical characteristics and applications of bearing seats are extensive and profound, covering many fields such as material science, manufacturing process, design, mechanical engineering and automation technology.

[0003] Currently, bearings that need to operate in liquids are prone to bearing wear and jamming during use due to environmental factors, making it impossible to ensure stable operation of the equipment. Utility Model Content

[0004] The utility model provides a bearing replacement device, which solves the problem in the related art that a bearing seat used in liquid is easy to wear.

[0005] The technical solution of the utility model is as follows:

[0006] A bearing replacement device, comprising:

[0007] shell;

[0008] A rotating layer, the rotating layer being rotatably disposed in the housing;

[0009] an abutting layer, the abutting layer being rotatably disposed in the rotating layer;

[0010] A shaft body is arranged in the abutting layer.

[0011] Optionally, the rotating layer and the outer shell are clearance-fitted, the abutting layer and the rotating layer are clearance-fitted, and the shaft body and the abutting layer are interference-fitted.

[0012] Optionally, the outer shell and the rotating layer both have a first step, and the first steps abut against each other.

[0013] Optionally, one end of the abutting layer has a first protrusion, and a first gap is provided between the first protrusion and the rotating layer, and the first gap is used to prevent the rotating layer from being damaged due to thermal expansion after rotation.

[0014] Optionally, it also includes:

[0015] A first end cover is disposed at one end of the housing.

[0016] Optionally, it also includes:

[0017] The second end cover has a first abutting surface and a second abutting surface, the first abutting surface abuts against the other end of the shell, and the second abutting surface rotatably abuts against the first protrusion.

[0018] Optionally, the first abutting surface has a first groove, the second abutting surface has a second groove, and further comprises:

[0019] a first sealing strip, the first sealing strip being disposed in the first groove;

[0020] A second sealing strip is disposed in the second groove.

[0021] Optionally, the housing has a first through hole and further comprises:

[0022] a first oil pipe, one end of which is arranged on the housing and communicated with the first through hole;

[0023] a second oil pipe, the inner diameter of the second oil pipe is smaller than that of the first oil pipe, and one end of the second oil pipe is arranged at the other end of the first oil pipe;

[0024] a sphere, the sphere being arranged inside the first oil pipe and abutting against an inner wall of the second oil pipe;

[0025] An elastic member is arranged inside the first oil pipe, one end of the elastic member abuts against the sphere, and the other end abuts against the shell, and is used to provide elastic force for the sphere to move away from the shell.

[0026] Optionally, the shell is divided into a first shell and a second shell, the lower surface of the first shell has a second protrusion, the upper surface of the second shell has a third groove, and the second protrusion is arranged in the third groove.

[0027] The working principle and beneficial effects of the utility model are:

[0028] 1. In the utility model, the outer shell is cast with high-strength material, the rotating layer is made of polytetrafluoroethylene and embedded in the outer shell to achieve smooth sliding. The abutting layer is made of stainless steel and embedded in the rotating layer to support the smooth operation of the shaft.

[0029] It can be used as a substitute for bearings on equipment that needs to operate in water, acid, alkali and other solutions, reducing wear and jamming caused by insufficient lubrication when using bearings, as well as wear and scratches on the shaft and other abnormal conditions, further increasing the service life of the equipment, reducing maintenance time and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0031] Figure 1 It is a schematic diagram of the structure of the utility model;

[0032] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0033] Figure 3 This is a cross-sectional view from another angle of the structure of the utility model.

[0034] In the figure: 1, outer shell, 2, rotating layer, 3, abutting layer, 4, shaft, 401, first step, 301, first protrusion, 302, first gap, 5, first end cover, 6, second end cover, 601, first abutting surface, 602, second abutting surface, 6011, first groove, 6021, second groove, 7, first sealing strip, 8, second sealing strip, 101, first through hole, 9, first oil pipe, 10, second oil pipe, 11, sphere, 12, elastic member, 102, first shell, 103, second shell, 1021, second protrusion, 1031, third groove. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0036] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0037] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0038] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] Reference Figure 1~Figure 3 , which is the first embodiment of the utility model, proposes a bearing replacement device, including a shell 1; a rotating layer 2 is rotatably arranged in the shell 1; a contact layer 3 is rotatably arranged in the rotating layer 2; and a shaft 4 is arranged in the contact layer 3.

[0040] In this embodiment, the housing 1 is cast with high-strength material, the rotating layer 2 is made of polytetrafluoroethylene and embedded in the housing 1 to achieve smooth sliding. The abutting layer 3 is made of stainless steel and embedded in the rotating layer 2 to support the shaft 4 to run smoothly.

[0041] It can be used as a replacement for bearings on equipment that needs to operate in solutions such as water, acid, and alkali, reducing wear and jamming caused by insufficient lubrication when using bearings, as well as wear and scratches on the shaft 4 and other abnormal conditions, further increasing the service life of the equipment, reducing maintenance time, and reducing maintenance costs.

[0042] Furthermore, the rotating layer 2 and the housing 1 are clearance-fitted, the abutting layer 3 and the rotating layer 2 are clearance-fitted, and the shaft body 4 and the abutting layer 3 are interference-fitted.

[0043] In this embodiment, a certain gap is reserved between the rotating layer 2 and the housing 1, and a gap is also reserved between the abutting layer 3 and the rotating layer 2, which is conducive to reducing friction and leaving a margin for the volume increase caused by the temperature increase when the rotating layer 2 rotates. The free rotation between the two is ensured. The shaft body 4 and the abutting layer 3 have an interference fit, ensuring that the shaft body 4 is installed firmly.

[0044] Furthermore, the housing 1 and the rotating layer 2 both have a first step 401 , and the first steps 401 abut against each other.

[0045] In this embodiment, in the design, a first step 401 is added to the outer shell 1 and the rotating layer 2. This design provides a positioning function for the outer shell 1 and the rotating layer 2 during installation, increases the contact area between the two, enhances stability, and ensures a tight fit without looseness.

[0046] Furthermore, one end of the abutting layer 3 has a first protrusion 301 , and a first gap 302 is provided between the first protrusion 301 and the rotating layer 2 . The first gap 302 is used to prevent the rotating layer 2 from being damaged due to thermal expansion after rotation.

[0047] In this embodiment, a first protrusion 301 is designed at one end of the abutting layer 3, and a first gap 302 is provided between the first protrusion 301 and the rotating layer 2. The first gap 302 reserves space for the thermal expansion of the rotating layer 2, thereby reducing the pressure of the thermal expansion of the rotating layer 2 on the abutting layer 3 at high temperatures.

[0048] Furthermore, it also includes a first end cover 5 , which is arranged at one end of the shell 1 .

[0049] In this embodiment, the device is added with a first end cover 5, which is at one end of the device and provides a seal to prevent external debris from entering and also enhance the overall stability.

[0050] Furthermore, it also includes a second end cover 6 , which has a first abutting surface 601 and a second abutting surface 602 , the first abutting surface 601 abuts against the other end of the housing 1 , and the second abutting surface 602 abuts against the first protrusion 301 in a rotational manner.

[0051] Furthermore, the first abutting surface 601 has a first groove 6011 , the second abutting surface 602 has a second groove 6021 , and further includes a first sealing strip 7 , which is disposed in the first groove 6011 ; and a second sealing strip 8 is disposed in the second groove 6021 .

[0052] In this embodiment, a second end cap 6 is added, which is arranged on the housing 1 and rotates relative to the shaft body 4 and the abutting layer 3. The end cap has a first abutting surface 601 and a second abutting surface 602, which abut against the housing 1 and the first protrusion 301, respectively, to form a tight sealing structure. A first groove 6011 and a second groove 6021 are designed on the first abutting surface 601 and the second abutting surface 602, which are used to place the first sealing strip 7 and the second sealing strip 8, thereby enhancing the sealing performance and preventing dust and leakage.

[0053] Furthermore, the housing 1 has a first through hole 101, and also includes a first oil pipe 9, one end of which is arranged on the housing 1 and connected to the first through hole 101; the inner diameter of the second oil pipe 10 is smaller than that of the first oil pipe 9, and one end of the second oil pipe 10 is arranged at the other end of the first oil pipe 9; the sphere 11 is arranged inside the first oil pipe 9 and abuts against the inner wall of the second oil pipe 10; the elastic member 12 is arranged inside the first oil pipe 9, one end of which abuts against the sphere 11 and the other end abuts against the housing 1, for providing elastic force to move the sphere 11 away from the housing 1.

[0054] In this embodiment, a first through hole 101 is designed in the housing 1, and a first oil pipe 9 and a second oil pipe 10 are additionally provided. The inner diameter of the second oil pipe 10 is smaller than the inner diameter of the first oil pipe 9. The first oil pipe 9 contains a sphere 11 and an elastic member 12. The sphere 11 is maintained in contact with the inner wall of the second oil pipe 10 by the elastic member 12, forming a one-way passage structure, which is convenient for the injection of lubricating oil and ensures the sealing of the device. In actual operation, the operator can judge whether it is necessary to inject oil into the bearing replacement device according to the actual situation.

[0055] Furthermore, the housing 1 is divided into a first shell 102 and a second shell 103 . The lower surface of the first shell 102 has a second protrusion 1021 . The upper surface of the second shell 103 has a third groove 1031 . The second protrusion 1021 is disposed in the third groove 1031 .

[0056] In this embodiment, the shell 1 is divided into a first shell 102 and a second shell 103. The second protrusion 1021 cooperates with the third groove 1031. This design makes the assembly and disassembly of the shell 1 more convenient while maintaining the overall strength. The cooperation between the second protrusion 1021 and the groove prevents the shell 1 from being misplaced during installation.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A bearing replacement device, characterized in that: include: Housing (1); A rotating layer (2), the rotating layer (2) being rotatably arranged in the outer shell (1); an abutting layer (3), the abutting layer (3) being rotatably disposed within the rotating layer (2); A shaft body (4), wherein the shaft body (4) is arranged in the abutment layer (3).

2. A bearing replacement device according to claim 1, characterized in that: The rotating layer (2) and the outer shell (1) are clearance-fitted, the abutting layer (3) and the rotating layer (2) are clearance-fitted, and the shaft (4) and the abutting layer (3) are interference-fitted.

3. A bearing replacement device according to claim 1, characterized in that: The outer shell (1) and the rotating layer (2) both have a first step (401), and the first steps (401) abut against each other.

4. A bearing replacement device according to claim 1, characterized in that: One end of the abutting layer (3) has a first protrusion (301), and a first gap (302) is provided between the first protrusion (301) and the rotating layer (2), wherein the first gap (302) is used to prevent the rotating layer (2) from being damaged due to thermal expansion after rotation.

5. A bearing replacement device according to claim 1, characterized in that: Also includes: A first end cover (5), wherein the first end cover (5) is arranged at one end of the housing (1).

6. A bearing replacement device according to claim 4, characterized in that: Also includes: A second end cover (6), the second end cover (6) having a first abutting surface (601) and a second abutting surface (602), the first abutting surface (601) abutting against the other end of the housing (1), and the second abutting surface (602) rotatably abutting against the first protrusion (301).

7. A bearing replacement device according to claim 6, characterized in that: The first abutting surface (601) has a first groove (6011), the second abutting surface (602) has a second groove (6021), and further comprises: a first sealing strip (7), the first sealing strip (7) being arranged in the first groove (6011); A second sealing strip (8), wherein the second sealing strip (8) is arranged in the second groove (6021).

8. A bearing replacement device according to claim 1, characterized in that: The housing (1) has a first through hole (101), and further comprises: A first oil pipe (9), one end of the first oil pipe (9) being arranged on the housing (1) and communicating with the first through hole (101); a second oil pipe (10), the inner diameter of the second oil pipe (10) being smaller than that of the first oil pipe (9), and one end of the second oil pipe (10) being arranged at the other end of the first oil pipe (9); a spherical body (11), the spherical body (11) being arranged inside the first oil pipe (9) and abutting against an inner wall of the second oil pipe (10); An elastic member (12), the elastic member (12) being arranged inside the first oil pipe (9), with one end abutting against the ball (11) and the other end abutting against the outer shell (1), and being used to provide an elastic force for the ball (11) to move away from the outer shell (1).

9. A bearing replacement device according to claim 1, characterized in that: The housing (1) is divided into a first shell (102) and a second shell (103); the lower surface of the first shell (102) has a second protrusion (1021); the upper surface of the second shell (103) has a third groove (1031); the second protrusion (1021) is arranged in the third groove (1031).

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