Steel ball grinding structure

Abstract

The utility model discloses a steel ball milling structure which comprises an upper millstone and a lower millstone, a planetary gear set is arranged in the upper millstone and connected with a first driving part to drive the upper millstone to rotate, and the planetary gear set comprises a sun gear, a plurality of planetary gears and an outer gear ring. The planet wheels are arranged in the outer gear ring and distributed on the peripheral side of the sun wheel in a surrounding mode to be meshed with the sun wheel in a matched mode, the sun wheel and the planet wheels are arranged to be the same in size and connected with matched grinding assemblies, and matched grooves are formed in the upper grinding disc and the lower grinding disc. The lower millstone is provided with an outer edge and is connected with an adaptive second driving part to drive the lower millstone to rotate relatively below the upper millstone, the design of the steel ball milling structure can further increase the contact surface with the steel balls, the grinding area is increased, and meanwhile, a good grinding effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel ball processing, in particular to a steel ball grinding ball structure. Background Art

[0002] Steel balls are usually manufactured by cold drawing or cold heading. During the manufacturing process, the outer surface of the ball is uneven, with defects such as oxide scale and black spots. Such surface conditions obviously cannot meet the high-precision requirements. Therefore, the steel ball needs to be processed through a post-grinding process. The grinding process of the steel ball is mainly divided into the following steps: rough grinding, polishing and grinding:

[0003] 1. Rough grinding: Use mechanical grinding equipment to remove the oxide scale and burrs on the surface of the sphere to achieve the surface flatness and roundness requirements.

[0004] 2. Polishing: Use mechanical polishing equipment to grind the spherical surface so that the surface finish of the bearing steel ball meets the requirements.

[0005] 3. Grinding: According to different precision requirements, manual or automatic grinding is used to trim the surface of the bearing steel balls to make the surface meet various requirements such as high precision, smoothness, and roundness.

[0006] Through the advancement of the grinding process, the shape accuracy and surface roughness of the steel balls can be effectively controlled and improved, making the steel balls more in line with the high-precision use requirements. The grinding process usually uses a grinding disc to grind the steel balls, and most of the grinding discs used for steel ball grinding are usually provided with grooves, and the steel balls can rotate in the grooves to achieve the surface grinding process. However, this type of grooved grinding disc is often not suitable for larger steel balls and has certain limitations during use; furthermore, for larger steel balls, the grinding equipment usually uses multiple driving devices to drive multiple grinding heads that are adapted to be set at a certain angle to rotate, so that the steel balls rotate and achieve grinding. This type of grinding device is limited by its grinding structure and can only grind a single steel ball in most cases, and because the contact area between its grinding head and the steel ball is limited, it usually takes a long grinding time, and the grinding efficiency for batch steel balls is relatively low.

[0007] Based on this, the utility model proposes a steel ball grinding ball structure to solve the above problems. Utility Model Content

[0008] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a steel ball grinding structure with a reasonable structural design, which can grind steel balls in batches while further increasing the contact area with the steel balls and has good grinding effect and grinding efficiency.

[0009] The technical solution adopted by the utility model to solve the above-mentioned problem is: a steel ball grinding ball structure, including an upper grinding disc and a lower grinding disc, the upper grinding disc is provided with a planetary gear set and is connected to a first driving component to drive it to rotate, the planetary gear set includes a sun gear, a plurality of planetary gears and an outer gear ring, the plurality of planetary gears are placed in the outer gear ring and are distributed in a circumferential manner on the circumference of the sun gear to mesh with it, the sun gear and the plurality of planetary gears are arranged in the same size and are connected to a matching grinding assembly, the upper grinding disc and the lower grinding disc are both provided with matching grooves, the lower grinding disc is provided with an outer edge and is connected to a matching second driving component to drive it to rotate relatively below the upper grinding disc.

[0010] Furthermore: the grinding assembly is provided in the form of a plurality of grinding sleeve structures which are sleeved on the adapting connecting rods provided on the sun gear and a plurality of planetary gears.

[0011] Furthermore: the grinding sleeves are provided in different sizes and are adaptably provided in multiple groups.

[0012] Furthermore: the inner wall of the outer edge of the lower grinding disc is configured to be frosted.

[0013] Furthermore: a slide groove is arranged on the outer edge of the lower grinding disc, and the upper grinding disc is adapted to slide in the slide groove on the outer edge of the lower grinding disc through a connecting pin with an adapted slide groove arranged at the bottom thereof.

[0014] Further: there are several groups of guide wheels rotatably arranged in the slide groove, and the several groups of guide wheels are distributed in a surrounding manner in the adaptable slide groove.

[0015] Further: the planetary gear set in the upper grinding disc is installed in the upper grinding disc through a detachable structure.

[0016] Further: a top plate is arranged below the upper grinding disc, and a groove thereof is adapted to be arranged on the top plate, and the top plate is connected to the upper grinding disc through a plurality of sets of springs arranged thereon.

[0017] Further: a plurality of filter holes are arranged in the adapting groove on the lower grinding disc.

[0018] Compared with the prior art, the utility model has the following advantages and effects:

[0019] The design of this steel ball grinding ball structure drives the rotation of the adapted upper grinding disc, the planetary gear set in the upper grinding disc and the lower grinding disc respectively through the first driving component and the second driving component, so that the steel ball rolls in the groove and can further increase the contact surface with the steel ball under the action of its grinding component, further increasing the grinding area and having a good grinding effect compared with the traditional grinding structure, and through the design of the planetary gear set, its multiple planetary wheels rotate around in the upper grinding disc, ensuring that the steel ball rolls in the groove and can grind multiple steel balls placed in the groove at the same time, the grinding is more uniform and stable, and the grinding efficiency is further improved, which can further shorten the grinding time. It takes time, and at the same time, during the grinding process, by controlling the rotational speed of the first driving component and the second driving component and changing the different grinding structures of the grinding surface of the grinding component, different precision grinding requirements such as coarse grinding or fine grinding can be achieved, which meets different usage requirements and has high adaptability and ease of use. In addition, the adaptable connection structure arranged on the upper grinding disc and the lower grinding disc can facilitate the connection and disassembly of the driving components, and is convenient for installation and adjustment to meet different usage environments and usage requirements. In addition, the overall structure of this steel ball grinding ball structure is compact, which reduces the occupied space, is convenient for installation and use, and is simple to operate, which is convenient for daily inspection and later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of a steel ball grinding ball structure according to an embodiment of the utility model.

[0021] Figure 2 It is a schematic structural diagram of an upper grinding disc and a lower grinding disc in an embodiment of the utility model.

[0022] Figure 3 It is a schematic diagram of the internal structure of the grinding disc in the embodiment of the utility model.

[0023] Figure 4 It is a partial enlarged view of the internal structure of the upper grinding disc and the lower grinding disc in the embodiment of the utility model.

[0024] Figure 5 It is a partial enlarged view of the internal structure of the grinding disc in the embodiment of the utility model.

[0025] Figure numbers: upper grinding disc 1, connecting pin 11, cover body 12, top plate 13, lower grinding disc 2, outer edge 21, slide groove 211, planetary gear set 3, sun gear 31, planetary gear 32, outer ring gear 33, connecting rod 34, grinding assembly 4, spring 5, steel ball 100, groove 110, slide rail 111, connecting structure 112, bolt 120. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0027] See also Figure 1-4 The present embodiment relates to a steel ball 100 grinding ball structure, comprising an upper grinding disc 1 and a lower grinding disc 2, wherein a planetary gear set 3 is arranged in the upper grinding disc 1 and is connected to a first driving component to drive the rotation, wherein the planetary gear set 3 comprises a sun gear 31, a plurality of planetary gears 32 and an outer gear ring 33, wherein the plurality of planetary gears 32 are arranged in the outer gear ring 33 and are distributed in a circumferential manner around the sun gear 31 to be adapted and meshed therewith, wherein the sun gear 31 and the plurality of planetary gears 32 are arranged in the same size and are both connected to an adapted grinding assembly 4, wherein adapted grooves 110 are both arranged on the upper grinding disc 1 and the lower grinding disc 2, wherein an outer edge 21 is arranged on the lower grinding disc 2 and is connected to an adapted second driving component to drive the lower portion of the upper grinding disc 1 to rotate relative to each other.

[0028] Specifically in this embodiment, the specific structure of the upper grinding disc 1 can be seen in Figure 2 -(1), the specific structure of the lower grinding disc 2 is as follows Figure 2 -(2) As shown in the figure, a plurality of steel balls 100 of suitable sizes can be placed in the groove 110 on the lower grinding disc 2 described in the previous step. After the placement is completed, the upper grinding disc 1 is driven by the first drive component connected to it to move the upper grinding disc 1 downward relative to the lower grinding disc 2 so that the upper surface of the steel ball 100 contacts the groove 110 on the upper grinding disc 1. The specific position of the steel ball 100 between the upper grinding disc 1 and the lower grinding disc 2 can be referred to. Figure 2 -(2) or Figure 4 As shown, the steel ball 100 is adapted to be clamped in the grooves 110 on the upper grinding disc 1 and the lower grinding disc 2 and can slide. At the same time, the first driving component can drive the upper grinding disc 1 and the planetary gear set 3 arranged therein to rotate, and the second driving component can drive the lower grinding disc 2 to rotate in a direction opposite to the rotation direction of the first driving component of the upper grinding disc 1. The steel ball 100 can roll in the groove 110 and perform preliminary grinding. For details, see Figure 3 During the rotation of the upper grinding disc 1, the first driving component is connected to the sun gear 31 of the internal planetary gear set 3 and drives it to rotate. The rotation of the sun gear 31 can drive the plurality of planetary gears 32 distributed in a surrounding manner to circle and adapt to the rotation in the outer gear ring 33 along the circumference of the sun gear 31, and on the slide rails 111 provided on the upper grinding disc 1 and the lower grinding disc 2. The slide rails 111 can be seen in FIG. Figure 2 -(2) and Figure 5As shown, the rotation of the sun gear 31 can drive the meshing multiple planetary gears 32 and the outer gear ring 33 meshing outside the multiple planetary gears 32 to adapt and rotate, and the rotation direction of the sun gear 31 is opposite to the rotation direction of the multiple planetary gears 32 and the outer gear ring 33. The sun gear 31 and the multiple planetary gears 32 can drive the adaptively connected grinding assembly 4 to rotate. Because the sun gear 31 and the multiple planetary gears 32 are of the same size, the connected grinding assembly 4 is adapted to be configured on both sides of the steel ball 100 and in contact with its outer surface. The grinding assembly 4 can be configured to adapt to the surface structure of the grinding head for The outer surface of the steel ball 100 is polished, and at the same time, the inner wall of the outer edge 21 of the lower grinding disc 2 is in contact with the outer surface of the steel ball 100, and the sun gear 31 and the plurality of planetary gears 32 on the upper grinding disc 1 are driven to rotate in reverse by the first driving component, and the lower grinding disc 2 and its outer edge 21 are driven to rotate by the second driving component, so that the steel ball 100 rolls in the matching grooves 110 of the upper grinding disc 1 and the lower grinding disc 2, and driven by the polishing components 4 in contact with the surfaces of the steel ball 100 on both sides and the outer edge 21 of the lower grinding disc 2, the steel ball 100 is adapted to rotate in the grooves 110 to realize the grinding process of its surface. The design of this steel ball 100 grinding ball structure drives the rotation of the adapted upper grinding disc 1, the planetary gear set 3 in the upper grinding disc 1, and the lower grinding disc 2 through the first driving component and the second driving component respectively, so that the steel ball 100 rolls in the groove 110 and can further increase the contact surface with the steel ball 100 under the action of its grinding component 4, further increasing the grinding area while having a good grinding effect compared with the traditional grinding structure, and through the design of the planetary gear set 3, its multiple planetary wheels 32 rotate around in the upper grinding disc 1, ensuring that the steel ball 100 can grind the multiple steel balls 100 placed in the groove 110 while rolling in the groove 110, making the grinding more uniform and stable while further improving the grinding effect Efficiency can be further shortened, and the time required for grinding can be further shortened. At the same time, during the grinding process, the rotational speed of the first driving component and the second driving component can be controlled and different grinding structures of the grinding surface of the grinding component 4 can be changed to achieve different precision grinding requirements such as coarse grinding or fine grinding, meet different usage requirements, and have high adaptability and ease of use. In addition, the adapter connection structure 112 arranged on the upper grinding disc 1 and the lower grinding disc 2 can facilitate the connection and disassembly of the driving components, and is convenient for installation and adjustment to meet different usage environments and usage requirements. Moreover, the overall structure of this steel ball 100 grinding ball structure is compact, which reduces the occupied space, is easy to install and use, and is simple to operate, which is convenient for daily inspection and later maintenance.

[0029] The grinding assembly 4 is provided in the form of a plurality of grinding sleeve structures which are sleeved on the adapting connecting rods 34 provided on the sun gear 31 and the plurality of planetary gears 32. Figure 2-As shown in (1), the grinding sleeve mounted on the connecting rod 34 ensures a more stable connection while facilitating installation and disassembly, cleaning, inspection and replacement, thereby improving ease of use.

[0030] The grinding sleeves are provided in different sizes and are adaptably provided in multiple groups. Specifically, the adaptable structure of the grinding sleeves can be provided in multiple groups and in different sizes according to the use requirements. The grinding sleeves on the multiple planetary gears 32 connecting rods 34 are adapted and replaced according to the size, quantity and grinding accuracy of the steel balls 100, thereby ensuring stable grinding while meeting different use requirements and increasing applicability and practicality.

[0031] The inner wall of the outer edge 21 of the lower grinding disc 2 is set to be frosted, and the inner wall of the frosted outer edge 21 is adapted to contact the surface of the steel ball 100 inside it. During the rotation of the lower grinding disc 2, the planetary gear set 3 of the upper grinding disc 1 can further grind the surface of the steel ball 100, further increase the contact area with the steel ball 100, increase the grinding area and improve the grinding efficiency.

[0032] The outer edge 21 of the lower grinding disc 2 is provided with a slide groove 211, and the upper grinding disc 1 is adapted to slide in the slide groove 211 on the outer edge 21 of the lower grinding disc 2 through a connecting pin 11 provided at the bottom thereof to fit the slide groove 211. Figure 2 -(1), the slide groove 211 on the outer edge 21 of the lower grinding disc 2 can be seen Figure 2 -(2) As shown in FIG. 1 , when the upper grinding disc 1 and the lower grinding disc 2 are rotating, the connecting pin 11 of the upper grinding disc 1 is adapted to rotate in the slide groove 211 on the outer edge 21 of the lower grinding disc 2. The specific connection method between the upper grinding disc 1 and the lower grinding disc 2 can be referred to in FIG. Figure 1 As shown, the design of the connecting pin 11 and the slide groove 211 can ensure that the upper grinding disc 1 and the lower grinding disc 2 are more stable during rotation, further reducing the possibility that the internal steel ball 100 will be separated from the groove 110 due to excessive shaking or offset angle of the upper grinding disc 1 or the lower grinding disc 2, affecting the grinding effect or even causing damage to the grinding ball structure, thereby further improving the operating stability and efficiency.

[0033] There are several groups of guide wheels rotatably arranged in the slide groove 211, and the several groups of guide wheels are distributed in a surrounding manner in the adaptation slide groove 211. The several groups of guide wheels can avoid direct contact between the connecting pin 11 of the upper grinding disc 1 and the surface of the slide groove 211, reduce the degree of wear, and play a certain guiding, buffering and shock-absorbing role, thereby improving the stability of the upper grinding disc 1 and the lower grinding disc 2 during the rotation process, and can appropriately reduce the noise generated during the rotation process.

[0034] The planetary gear set 3 in the upper grinding disc 1 is installed in the upper grinding disc 1 through a detachable structure, as shown in FIG. Figure 1 and Figure 3 As shown, an adaptor cover 12 is provided on the top of the upper grinding disc 1, and the cover 12 is adaptor-covered on the top of the upper grinding disc 1 through a bolt member 120. The cover 12 can be used to conveniently install and disassemble the internal planetary gear set 3 structure of the upper grinding disc 1, so as to facilitate timely adjustment and maintenance for abnormal problems and improve the convenience of operation.

[0035] A top plate 13 is provided below the upper grinding disc 1, and a groove 110 is adapted to be provided on the top plate 13. The top plate 13 is connected to the upper grinding disc 1 through a plurality of springs 5 ​​provided thereon. Figure 2 -(1) or Figure 4 As shown in the figure, when the upper grinding disc 1 above the steel ball 100 is fixed, the top plate 13 first contacts the surface of the steel ball 100 under the action of its multiple sets of springs 5, and during the movement of the upper grinding disc 1, the steel ball 100 is clamped in the adapting groove 110 provided on the top plate 13 and the lower grinding disc 2 under the pressure of the multiple sets of springs 5 ​​on the top plate 13 to roll. The top plate 13 provided by the multiple sets of springs 5 ​​can play a certain buffering and shock absorbing role, further slowing down the movement amplitude of the steel ball 100 during the grinding process, and appropriately reducing the stress generated by the direct contact of the upper grinding disc 1 with the surface of the steel ball 100, reducing the unnecessary influence of this grinding ball structure on the surface of the steel ball 100 during the grinding process, such as scratches or pits, thereby improving the grinding stability.

[0036] A plurality of filter holes are arranged in the adapting groove 110 on the lower grinding disc 2. The plurality of filter holes arranged in the groove 110 of the lower grinding disc 2 can further improve the efficiency of filtering and discharging the water required by the steel ball 100 or the waste residue generated during the grinding process, meet different grinding needs, reduce the probability of affecting the grinding effect due to excessive waste residue or even causing damage to the grinding ball structure, and improve the operation stability.

[0037] The above contents described in this specification are merely examples of the present utility model. Those skilled in the art of the present utility model may make various modifications or additions to the specific embodiments described, or replace them in similar ways, as long as they do not deviate from the contents of the present utility model specification or exceed the scope defined in the claims, they shall all fall within the protection scope of the present utility model.

Claims

1. A steel ball grinding ball structure, characterized in that: It comprises an upper grinding disc and a lower grinding disc, wherein a planetary gear set is arranged inside the upper grinding disc and is connected to a first driving component to drive the rotation, wherein the planetary gear set comprises a sun gear, a plurality of planetary gears and an outer gear ring, wherein the plurality of planetary gears are arranged inside the outer gear ring and are distributed in a circumferential manner on the circumference of the sun gear to mesh with the sun gear, wherein the sun gear and the plurality of planetary gears are arranged to be of the same size and are connected to a matching grinding assembly, wherein matching grooves are arranged on the upper grinding disc and the lower grinding disc, wherein an outer edge is arranged on the lower grinding disc and is connected to a matching second driving component to drive the lower portion of the upper grinding disc to rotate relative to the outer edge.

2. A steel ball grinding ball structure according to claim 1, characterized in that: The grinding components are provided in the form of a plurality of grinding sleeve structures which are sleeved on the adapting connecting rods provided on the sun gear and a plurality of planetary gears.

3. A steel ball grinding ball structure according to claim 2, characterized in that: The grinding sleeves are provided in different sizes and are adaptably provided in multiple groups.

4. The steel ball grinding ball structure according to claim 1, characterized in that: The inner wall of the outer edge of the lower grinding disc is arranged to be frosted.

5. The steel ball grinding ball structure according to claim 1, characterized in that: A slide groove is arranged on the outer edge of the lower grinding disc, and the upper grinding disc is adapted to slide in the slide groove on the outer edge of the lower grinding disc through a connecting pin with an adapted slide groove arranged at the bottom of the upper grinding disc.

6. A steel ball grinding ball structure according to claim 5, characterized in that: A plurality of guide wheels are rotatably arranged in the slide groove, and the plurality of guide wheels are distributed in the adapting slide groove in a surrounding manner.

7. The steel ball grinding ball structure according to claim 1, characterized in that: The planetary gear set in the upper grinding disc is installed in the upper grinding disc through a detachable structure.

8. The steel ball grinding ball structure according to claim 1, characterized in that: A top plate is arranged below the upper grinding disc, and a groove thereof is adapted to be arranged on the top plate. The top plate is connected with the upper grinding disc through a plurality of groups of springs arranged thereon.

9. The steel ball grinding ball structure according to claim 1, characterized in that: A plurality of filtering holes are arranged in the adapting groove on the lower grinding disc.

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