Ball bearing for surface roughness measuring instrument

Abstract

The utility model provides a ball bearing for a surface roughness measuring instrument, belongs to the technical field of surface roughness measuring instruments, and aims to solve the problems that lubricating grease is easy to unbalancing in distribution under the action of centrifugal force, and abrasion and overheating are caused by unbalancing in distribution of the lubricating grease because most of the conventional ball bearings are lubricated by smearing the lubricating grease. Comprising a bearing outer ring body; the bearing inner ring main body is mounted in the bearing outer ring main body; the bearing raceways are arranged in two groups, one group of bearing raceways is arranged on the inner side of the bearing outer ring main body, and the other group of bearing raceways is arranged on the outer side of the bearing inner ring main body; the retainer main body is mounted on the outer sides of the plurality of groups of rolling bead main bodies; the mounting assembly is arranged in the retainer main body; and the lubricating assembly is arranged in the bearing outer ring main body. The utility model has the advantages of convenient disassembly and assembly, grease storage, convenient heat dissipation and the like.

Description

Technical Field

[0001] This utility model belongs to the technical field of surface roughness measuring instruments, and more specifically, it relates to ball bearings for surface roughness measuring instruments. Background Technology

[0002] Surface roughness measuring instruments are suitable for various applications, including cold-rolled steel production sites. They collect and measure surface roughness at the measurement location using sensors. Ball bearings, a crucial component of the instrument, are primarily mounted at both ends of the measuring shaft. This allows the measuring probe, mounted at one end of the shaft, to precisely displace and probe the surface being measured. The high-precision rotational performance of the ball bearings enables the measuring shaft to rotate or move linearly with minimal error. Existing ball bearings mainly consist of an inner ring, outer ring, rolling balls, and a cage. The rolling balls are positioned between the inner and outer rings, and the cage evenly separates them, allowing them to roll orderly within the raceway.

[0003] Existing application number CN202222418122.5 discloses a wear-resistant device for protecting deep groove ball bearings, including a deep groove ball bearing body. The deep groove ball bearing body includes a bearing outer sleeve, a bearing inner sleeve, a bearing dustproof plate, and a deep groove ball bearing assembly. The bearing inner sleeve is provided inside the bearing outer sleeve, and a bearing dustproof plate is provided between the bearing inner sleeve and the bearing outer sleeve. An outer limiting groove is provided at the center of the inner side of the bearing outer sleeve, and an inner limiting groove is provided at the center of the outer side of the bearing inner sleeve. A deep groove ball bearing assembly is provided between the outer limiting groove and the inner limiting groove. This utility model, through the deep groove ball bearing assembly and the lubrication assembly, enables constant lubrication of the balls, reduces ball wear, and extends service life.

[0004] Based on the above, most existing ball bearings are lubricated by applying grease. However, the inner and outer ring surfaces are smooth and grease is not easily retained. This makes it easy for the grease to become unbalanced under centrifugal force during the rotation of the ball bearing. Unbalanced grease distribution can lead to wear and overheating. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a ball bearing for a surface roughness measuring instrument. This addresses the issue that most existing ball bearings are lubricated by applying grease, but the inner and outer ring surfaces are smooth and grease is not easily retained. This causes the ball bearing to experience uneven grease distribution under centrifugal force during rotation, leading to wear and overheating.

[0006] The purpose and effect of the ball bearing used in this surface roughness measuring instrument are achieved by the following specific technical means:

[0007] Ball bearings for surface roughness measuring instruments, including the outer ring body of the bearing;

[0008] The bearing inner ring body is installed inside the bearing outer ring body;

[0009] The bearing raceway is provided in two sets: one set of bearing raceways is located inside the outer ring body of the bearing, and the other set of bearing raceways is located outside the inner ring body of the bearing.

[0010] The ball bearing body is provided in multiple sets, and the multiple sets of ball bearing bodies are rotatably connected in the middle position between the outer ring body and the inner ring body of the bearing.

[0011] A cage body, which is mounted on the outside of a plurality of ball bearing bodies;

[0012] Mounting components are disposed inside the cage body;

[0013] A lubrication assembly is disposed inside the outer ring body of the bearing.

[0014] Furthermore, the installation components include:

[0015] Upper retainer, which is mounted on the outside of the multiple sets of ball bearing bodies;

[0016] The lower retainer is mounted on the outside of the multiple sets of ball bearing bodies.

[0017] Furthermore, the mounting components also include:

[0018] The snap-fit ​​hooks are provided in multiple sets, and the multiple sets of snap-fit ​​hooks are fixedly installed on the inner side of the upper retainer.

[0019] The snap-fit ​​slots are provided in multiple sets, and the multiple sets of snap-fit ​​slots are opened inside the lower retainer.

[0020] Furthermore, the lubrication assembly includes:

[0021] The first oil reservoir is located inside the bearing raceway on one side of the outer ring body of the bearing.

[0022] The second oil reservoir is located inside the bearing raceway on the outer side of the bearing inner ring body.

[0023] Furthermore, the lubrication assembly also includes:

[0024] The third oil reservoir is located inside the main body of the cage.

[0025] Furthermore, the lubrication assembly also includes:

[0026] The through-hole groove is provided in multiple sets, and the multiple sets of through-hole grooves are provided inside the cage body.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] Firstly, this utility model has an installation component. When the upper and lower retainers are aligned and closed, the upper retainer drives the snap hook to engage with the snap groove and snap together to complete the installation, forming the retainer body. This allows for quick assembly and disassembly of the retainer body, greatly improving the efficiency of assembly and disassembly, facilitating the maintenance and replacement of the retainer body, and avoiding the inconvenience of rivet connections in disassembly, which can also easily damage the surface of the ball bearing body during disassembly.

[0029] Secondly, this utility model has a lubrication component. By applying a diamond-like coating to the bearing raceway and the surface of the rolling ball body, friction and wear are significantly reduced. Moreover, the first oil reservoir, the second oil reservoir, and the third oil reservoir effectively intercept and store the lubricating grease, continuously and stably lubricating the rolling ball body. This also effectively reduces the weight and material usage of the ball bearing. The through-hole groove increases the permeability of the cage body, improving the heat dissipation effect of the cage body and facilitating the flow of lubricating grease and heat.

[0030] This invention has the advantages of convenient disassembly and assembly, grease storage, and convenient heat dissipation, which greatly improves the disassembly and assembly efficiency of the cage body, facilitates the maintenance and replacement of the cage body, and continuously and stably lubricates the ball bearing body, increasing the permeability of the cage body. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0032] Figure 2 This is a schematic diagram of the main structure of the bearing outer ring of this utility model.

[0033] Figure 3 This is a schematic diagram of the main structure of the bearing inner ring of this utility model.

[0034] Figure 4 This is a schematic diagram of the main structure of the cage of this utility model.

[0035] Figure 5 This is a schematic diagram of the third oil storage tank structure of this utility model.

[0036] Figure 6 This is a schematic diagram of the snap-fit ​​groove structure of this utility model.

[0037] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0038] 1. Bearing outer ring body; 2. Bearing inner ring body; 3. Cage body; 301. Upper cage; 302. Lower cage; 303. Through-hole groove; 304. Third oil reservoir; 305. Snap hook; 306. Snap groove; 4. Ball body; 5. Bearing raceway; 501. First oil reservoir; 502. Second oil reservoir. Detailed Implementation

[0039] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. Example 1:

[0040] As attached Figure 1 To be continued Figure 6 As shown:

[0041] This utility model provides a ball bearing for a surface roughness measuring instrument, including a bearing outer ring body 1;

[0042] The bearing inner ring body 2 is installed inside the bearing outer ring body 1.

[0043] The bearing raceway 5 is provided in two sets. One set of bearing raceways 5 is located inside the outer ring body 1 of the bearing, and the other set of bearing raceways 5 is located outside the inner ring body 2 of the bearing.

[0044] The ball bearing body 4 has multiple sets of ball bearing bodies 4, which are rotatably connected between the outer ring body 1 and the inner ring body 2 of the bearing.

[0045] Cage body 3, which is mounted on the outside of multiple sets of ball bearing bodies 4;

[0046] The mounting components are located inside the cage body 3.

[0047] The installation components include:

[0048] Upper retainer 301 is mounted on the outside of the multiple sets of ball bearing bodies 4;

[0049] The lower retainer 302 is installed on the outside of the multiple sets of ball bearing bodies 4; its function is to engage the upper retainer 301 and the lower retainer 302 together to form the retainer body 3.

[0050] The installation components also include:

[0051] The snap hook 305 is provided in multiple sets, and the multiple sets of snap hooks 305 are fixedly installed on the inner side of the upper retainer 301.

[0052] The snap-fit ​​groove 306 is provided in multiple sets, and the multiple sets of snap-fit ​​grooves 306 are opened inside the lower retainer 302. Its function is that when the upper retainer 301 and the lower retainer 302 are closed, the upper retainer 301 drives the snap-fit ​​hook 305 to hook into the snap-fit ​​groove 306 and snap together to complete the installation, forming the retainer body 3.

[0053] The specific usage and function of this embodiment are as follows:

[0054] When the upper retainer 301 and the lower retainer 302 are aligned and closed, the upper retainer 301 drives the snap hook 305 to hook into the snap groove 306 and snap together to complete the installation, forming the retainer body 3, which plays a role in the rapid assembly of the retainer body 3.

[0055] When it is necessary to replace the main body 3 of the retainer, the locking hooks 305 are moved inward in sequence to disengage the locking hooks 305 from the inside of the locking grooves 306, so as to quickly separate the upper retainer 301 and the lower retainer 302. Example 2:

[0056] Based on Example 1, such as Figures 1 to 6 As shown, it also includes:

[0057] A lubrication assembly is disposed inside the outer ring body 1 of the bearing.

[0058] The lubrication components include:

[0059] The first oil reservoir 501 is located inside the bearing raceway 5 on one side of the bearing outer ring body 1.

[0060] The second oil reservoir 502 is located inside the bearing raceway 5 on the outer side of the inner ring body 2 of the bearing. Its function is to round the edges of the first oil reservoir 501 and the second oil reservoir 502 to reduce the wear of the ball body 4. The first oil reservoir 501 and the second oil reservoir 502 can intercept and store the agitated lubricating grease when the ball body 4 rotates, so as to continuously lubricate the ball body 4 while it rotates and reduce the uneven distribution of lubricating grease under the action of centrifugal force, which would cause uneven lubrication of the ball body 4.

[0061] The lubrication components also include:

[0062] The third oil reservoir 304 is located inside the cage body 3. Its function is to intercept and store lubricating grease inside the cage body 3 when the ball bearing body 4 rotates, so as to continuously and stably lubricate the ball bearing body 4 and prevent the lubricating grease between the ball bearing body 4 and the cage body 3 from decreasing and increasing friction.

[0063] The lubrication components also include:

[0064] Multiple sets of through-hole grooves 303 are formed inside the cage body 3. The function of the through-hole grooves 303 is to increase the permeability of the cage body 3, increase the heat dissipation of the cage body 3, and prevent the ball body 4 from overheating when rotating. In addition, the through-hole grooves 303 are interconnected with the third oil reservoir 304 to facilitate the flow of lubricating grease and heat.

[0065] The specific usage and function of this embodiment are as follows:

[0066] In the surface roughness measuring instrument, the bearing raceways 5 formed by the outer ring body 1 and the inner ring body 2 of the bearing are key parts that bear loads and friction. A diamond-like carbon (DLC) coating is applied to the surfaces of the bearing raceways 5 and the rolling ball body 4. DLC coatings have high hardness, low coefficient of friction, and good wear resistance; applying them to the surfaces of the bearing raceways 5 and the rolling ball body 4 can significantly reduce friction and wear.

[0067] The edges of the first oil reservoir 501 and the second oil reservoir 502 are rounded to reduce wear on the main body 4 of the rolling ball. The first oil reservoir 501 and the second oil reservoir 502 can intercept and store the agitated lubricating grease when the main body 4 of the rolling ball rotates, so as to continuously lubricate the main body 4 of the rolling ball while it rotates, and reduce the uneven distribution of lubricating grease under centrifugal force, which would cause uneven lubrication of the main body 4 of the rolling ball.

[0068] When the ball bearing body 4 rotates, the third oil reservoir 304 intercepts and stores the lubricating grease inside the cage body 3, continuously and stably lubricating the ball bearing body 4 and preventing the lubricating grease between the ball bearing body 4 and the cage body 3 from decreasing and increasing friction.

[0069] The through-hole groove 303 increases the permeability of the cage body 3, enhances the heat dissipation effect of the cage body 3, and prevents the ball body 4 from overheating when rotating. In addition, the through-hole groove 303 is connected to the third oil reservoir 304, which facilitates the flow of lubricating grease and heat.

[0070] The following points should be noted in this article:

[0071] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0072] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0073] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A ball bearing for a surface roughness measuring instrument, characterized in that: The ball bearing used in this surface roughness measuring instrument includes an outer ring body (1); an inner ring body (2), which is installed inside the outer ring body (1); a bearing raceway (5), which has two sets, one set located inside the outer ring body (1) and the other set located outside the inner ring body (2); a ball bearing body (4), which has multiple sets, which are rotatably connected between the outer ring body (1) and the inner ring body (2); a cage body (3), which is installed outside the multiple sets of ball bearing bodies (4); and a mounting assembly. The mounting assembly is located inside the cage body (3); the lubrication assembly is located inside the outer ring body (1); the first oil reservoir (501) is located inside the bearing raceway (5) on one side of the outer ring body (1); the second oil reservoir (502) is located inside the bearing raceway (5) on one side of the inner ring body (2); the third oil reservoir (304) is located inside the cage body (3); and the through-hole groove (303) has multiple sets, which are located inside the cage body (3).

2. The ball bearing for the surface roughness measuring instrument as described in claim 1, characterized in that: The mounting assembly includes an upper retainer (301) and a lower retainer (302), wherein the upper retainer (301) is mounted on the outside of the multiple sets of ball bearing bodies (4); and the lower retainer (302) is mounted on the outside of the multiple sets of ball bearing bodies (4).

3. The ball bearing for a surface roughness measuring instrument as described in claim 2, characterized in that: The mounting assembly also includes: a snap hook (305) and a snap groove (306). The snap hook (305) is provided in multiple sets, and the multiple sets of snap hooks (305) are fixedly installed inside the upper retainer (301). The snap groove (306) is provided in multiple sets, and the multiple sets of snap grooves (306) are opened inside the lower retainer (302).

Images