A bearing inner ring grinding device
By employing an inner and outer tube structure and negative pressure adsorption technology in the bearing inner ring grinding device, the problem of poor chip collection has been solved, achieving efficient centralized collection of chips and reducing the user's cleaning burden.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIASHAN PINHUI PRECISION
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-30
AI Technical Summary
In existing bearing inner ring grinding equipment, debris is easily left behind or splashed during the grinding process, resulting in poor collection and increasing the user's workload later.
An active collection method is adopted, which uses an inner and outer tube structure and negative pressure adsorption, combined with a filter plate and a collection box, to achieve centralized collection of debris generated during the grinding process.
It effectively avoids debris residue and splashing, improves collection efficiency, and reduces the amount of labor required for users to clean up debris.
Smart Images
Figure CN224425255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing processing technology, and in particular to a bearing inner ring grinding device. Background Technology
[0002] Bearing rings are one of the components of a bearing. A bearing is formed by the cooperation of multiple bearing rings and balls. When bearing rings are processed in the factory, they need to go through the steps of raw material forging, annealing, turning, quenching, tempering, grinding and assembly. Among them, the grinding process is mainly to ensure that the accuracy and shape accuracy of the bearing inner ring meet the design requirements and to provide qualified rings for bearing assembly.
[0003] A search revealed that the Chinese patent "A Grinding Device for Inner Rings of Bearings" (authorization announcement number CN214817149U) includes a main body, which is a horizontally placed trapezoid. Telescopic rods are fixedly connected to the four corners of the bottom of the main body, and first limiting bolts are fixedly connected to the surface of each telescopic rod. Universal wheels are fixedly connected to the bottom of each telescopic rod. A hinged door is provided on the surface of the main body, with a handle at one end. A storage compartment is located on the right side of the main body, with storage compartments at the same level forming a group. A collection compartment is located on the left side of the main body. The included door and collection compartment are energy-efficient and environmentally friendly, avoiding the problem of debris pollution during grinding and improving practicality. However, this method has the following drawbacks in actual use: The passive collection method means that debris is easily left behind in the bearing balls or splashed into the processing area during grinding, resulting in poor collection and increasing the user's workload later on. Utility Model Content
[0004] Therefore, it is necessary to provide a bearing inner ring grinding device to address the problem of poor debris collection and increased workload for users in the later stages.
[0005] A bearing inner ring grinding device includes a base and a three-jaw chuck disposed on the outer side of the base, wherein a grinding wheel is disposed on the outer side of the base; it also includes a dust removal mechanism disposed on the grinding wheel and used to actively collect the debris generated during the grinding process; wherein the dust removal mechanism includes an inner tube and a set of outer tubes, the outer tubes being evenly distributed on the outer side along the axis of the grinding wheel, and a set of through holes being opened on the outer side of the inner tubes, the through holes extending into the interior of the grinding wheel.
[0006] In one embodiment, an annular tube is provided on the outer side of the grinding wheel, and two folded tubes are provided between the annular tube and the inner tube, with the annular tube communicating with the outer tube.
[0007] In one embodiment, a collection box is slidably connected to the base, and a drive motor that docks with a grinding wheel is provided on the collection box. The grinding wheel is mounted on the collection box, and an electric push rod for driving the collection box is provided on the top of the base.
[0008] In one embodiment, a collar is rotatably connected inside the annular tube, and a vertical tube is provided between the collar and the collection box.
[0009] In one embodiment, both sides of the collar are provided with sealing rings that mate with the inside of the annular tube.
[0010] In one embodiment, an air pump is provided on the top of the base, and a hose communicating with a collection box is installed at the input end of the air pump.
[0011] In one embodiment, the collection box has a filter plate inside and a sealed door on one side.
[0012] Beneficial effects
[0013] 1. By setting up an outer tube and an inner tube, an active extraction method is adopted. The inner tube uses the through hole to adsorb and collect the debris inside the bearing, and the outer tube is used to adsorb and collect the debris splashed to the outside of the bearing, so as to ensure the collection effect.
[0014] 2. With the filter plate and collection box, debris can be intercepted in a centralized manner. Users can open the sealed door periodically to discharge the debris in a centralized manner, reducing the workload of debris handling. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a cross-sectional schematic diagram of the grinding wheel and inner tube of this utility model;
[0018] Figure 3 This is an exploded view of the annular tube and collar of this utility model;
[0019] Figure 4 This is a cross-sectional schematic diagram of the collection box and filter plate of this utility model.
[0020] Figure label:
[0021] 100, Base; 110, Collection box; 120, Air pump; 200, Three-jaw chuck; 300, Grinding wheel; 310, Annular tube; 311, Bending tube; 312, Collar; 400, Dust removal mechanism; 410, Inner tube; 411, Through hole; 420, Outer tube. Detailed Implementation
[0022] 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 embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.
[0027] The following is combined Figures 1-4 This invention describes a bearing inner ring grinding device.
[0028] In one embodiment, a bearing inner ring grinding device includes a base 100 and a three-jaw chuck 200 disposed on its outer side, and a grinding wheel 300 is disposed on the outer side of the base 100; it also includes a dust removal mechanism 400, which is disposed on the grinding wheel 300 and is used to actively collect the debris generated during the grinding process; wherein, the dust removal mechanism 400 includes an inner tube 410 and a set of outer tubes 420, the outer tubes 420 are evenly distributed on their outer side along the axis of the grinding wheel 300, and a set of through holes 411 are opened on the outer side of the inner tube 410, the through holes 411 extending into the interior of the grinding wheel 300.
[0029] like Figure 2 As shown, an annular tube 310 is provided on the outer side of the grinding wheel 300, and two folded tubes 311 are provided between the annular tube 310 and the inner tube 410. The annular tube 310 is connected to the outer tube 420.
[0030] In this embodiment, a three-jaw chuck 200 is used to limit and fix the inner ring of the bearing. Then, when the inner ring of the bearing is ground with a grinding wheel 300, a negative pressure is formed in the annular tube 310. Thus, the through hole 411 on the inner tube 410 can be used to adsorb and collect the debris inside the bearing, and the outer tube 420 can be used to adsorb and collect the debris splashed to the outside of the bearing. Then, the debris adsorbed by the outer tube 420 is directly introduced into the annular tube 310, and the debris adsorbed by the inner tube 410 is introduced into the annular tube 310 along the bend 311, completing the centralized collection process.
[0031] It should be noted that one side of the grinding wheel 300 is set as a flat-topped truncated cone, and there is a gap between its inclined surface and the inner wall of the bearing inner ring, so that this space can facilitate the adsorption of debris.
[0032] The three-jaw chuck 200 used in this application is driven by a servo motor and a square rod. This type of three-jaw chuck 200 is a mature existing technology and will not be described in detail here.
[0033] like Figure 1As shown, a collection box 110 is slidably connected to the base 100. A drive motor that docks with the grinding wheel 300 is provided on the collection box 110. The grinding wheel 300 is installed on the collection box 110. An electric push rod for driving the collection box 110 is provided on the top of the base 100.
[0034] Start the drive motor to rotate the grinding wheel 300, then start the electric push rod to drive the grinding wheel 300 to contact the inner ring of the bearing for grinding. With the collection box 110, the debris is collected in a concentrated manner.
[0035] It should be noted that the grinding wheel 300 in this application is made of diamond.
[0036] like Figure 1 , Figure 2 and Figure 3 As shown, a collar 312 is rotatably connected inside the annular tube 310, and a vertical tube is provided between the collar 312 and the collection box 110.
[0037] By using a vertical pipe paired with a collar 312, the vertical pipe and collar 312 are in a fixed state, which can complete the debris collection operation without affecting the rotation of the annular pipe 310.
[0038] like Figure 3 As shown, both sides of the collar 312 are provided with sealing rings that mate with the inside of the annular tube 310.
[0039] By using a sealing ring, gas leakage is reduced without affecting the normal rotation between the collar 312 and the annular tube 310, thus ensuring the stability of the debris suction force.
[0040] like Figure 1 As shown, an air pump 120 is provided on the top of the base 100, and a hose connected to the collection box 110 is installed at the input end of the air pump 120.
[0041] When the air pump 120 is started, a negative pressure is created in the collection box 110 through the hose, and at the same time the vertical pipe pumps air into the annular pipe 310 to complete the collection of debris.
[0042] like Figure 1 and Figure 4 As shown, a filter plate is installed inside the collection box 110, and a sealed door is installed on one side of the collection box 110.
[0043] The filter plate intercepts the collected debris, and the user can periodically open the sealed door to collect and clean the debris in the collection box 110.
[0044] Working principle: The bearing inner ring is fitted onto the three-jaw chuck 200, and then the corresponding jaws are used to fix the bearing inner ring. Then, the drive motor and electric push rod are started, so that the collection box 110 drives the high-speed rotating grinding wheel 300 to contact the bearing inner ring for grinding. During the processing, the air pump 120 is started, and then the through hole 411 and the outer tube 420 collect the debris into the annular tube 310, and then guide it into the collection box 110 along the vertical tube to complete the active collection.
[0045] It should be noted that the electric linear actuator, drive motor, and air pump 120 mentioned above are all components with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the electric linear actuator, drive motor, and air pump 120 can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, and will not be elaborated here.
[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0047] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A bearing inner ring grinding device, characterized in that, include: A base (100) and a three-jaw chuck (200) disposed on its outer side, wherein a grinding wheel (300) is disposed on the outer side of the base (100). It also includes a dust removal mechanism (400), which is disposed on the grinding wheel (300) and is used to actively collect the debris generated during the grinding process; The dust removal mechanism (400) includes an inner tube (410) and a set of outer tubes (420). The outer tubes (420) are evenly distributed on their outer side along the axis of the grinding wheel (300). A set of through holes (411) are opened on the outer side of the inner tube (410), and the through holes (411) extend into the interior of the grinding wheel (300).
2. The bearing inner ring grinding device according to claim 1, characterized in that, The grinding wheel (300) is provided with an annular tube (310) on its outer side, and two folded tubes (311) are provided between the annular tube (310) and the inner tube (410). The annular tube (310) is connected to the outer tube (420).
3. The bearing inner ring grinding device according to claim 2, characterized in that, A collection box (110) is slidably connected to the base (100). A drive motor that docks with a grinding wheel (300) is provided on the collection box (110). The grinding wheel (300) is installed on the collection box (110). An electric push rod for driving the collection box (110) is provided on the top of the base (100).
4. The bearing inner ring grinding device according to claim 3, characterized in that, The annular tube (310) is rotatably connected to a collar (312), and a vertical tube is provided between the collar (312) and the collection box (110).
5. The bearing inner ring grinding apparatus according to claim 4, characterized in that, Both sides of the collar (312) are provided with sealing rings that connect with the inside of the annular tube (310).
6. The bearing inner ring grinding apparatus according to claim 3, characterized in that, An air pump (120) is provided on the top of the base (100), and a hose connected to the collection box (110) is installed at the input end of the air pump (120).
7. The bearing inner ring grinding apparatus according to claim 3, characterized in that, The collection box (110) is equipped with a filter plate inside, and a sealed door is provided on one side of the collection box (110).