A cycloidal diamond roller for RV reducer

Abstract

The utility model discloses a cycloidal diamond roller for an RV reducer, which relates to the technical field of diamond rollers and comprises a wheel body, wherein the outer ring side of the wheel body is provided with an annular grinding surface, diamond abrasive grains are evenly arranged on the grinding surface, and an annular groove is provided in the middle of the grinding surface; a plurality of grooves are evenly arranged on the grinding surface, and at least one end of the grooves extends to the edge of the grinding surface; the diamond roller grinding surface of the utility model has grooves, which is beneficial to heat dissipation and chip removal when the diamond roller is working, thereby effectively improving the dressing efficiency and smoothing the workload.

Description

Technical Field

[0001] The utility model relates to the technical field of diamond rollers, in particular to a cycloid diamond roller for an RV reducer. Background Art

[0002] Diamond rollers are high-efficiency, long-life, low-cost grinding wheel dressing tools used in special machine tools and gear grinders for large-scale profile grinding.

[0003] The working principle of the diamond roller is: by installing it on the dressing device of the grinder, the diamond roller dresses the ordinary ceramic grinding wheel or CBN grinding wheel, and then grinds the parts after the grinding wheel is formed, so that the outer contour, accuracy and size of the diamond roller are copied to the surface of the processed part through the grinding wheel.

[0004] Cycloid gear is one of the main components of RV reducer, such as the planetary cycloid micro RV reducer with the utility model patent publication number CN211231450U. During the cycloid gear grinding process, the grinding wheel needs to be frequently trimmed with a diamond roller.

[0005] The utility model patent with publication number CN209598890U discloses a diamond roller for dressing cycloidal gears. The diamond roller has an annular grinding surface with arc grooves and diamond particles, which can be used to dress the grinding wheel online so that the grinding wheel can grind the cycloidal gears. However, the diamond roller grinding surface has no grooves, which is not conducive to chip removal and heat dissipation of the diamond roller. Utility Model Content

[0006] The purpose of the utility model is to provide a cycloidal diamond roller for an RV reducer in order to solve the above-mentioned problems in the prior art.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A cycloidal diamond roller for an RV reducer comprises a wheel body, an outer ring side of the wheel body having an annular grinding surface, diamond abrasive grains are evenly arranged on the grinding surface, and an annular groove is provided in the middle of the grinding surface; a plurality of grooves are evenly arranged on the grinding surface, and at least one end of the groove extends to the edge of the grinding surface.

[0009] Furthermore, an axial hole is provided at the center of the wheel body, and an annular protrusion is provided on both sides of the wheel body, and the annular protrusion surrounds the axial hole; and a plurality of mounting through holes are evenly arranged on the circumference of the wheel body.

[0010] Furthermore, one end of the groove is located in the middle of the grinding surface, and the other end extends to the edge of the grinding surface.

[0011] Furthermore, the grooves are all arranged obliquely.

[0012] Furthermore, the axial span of the groove is not less than half of the axial width of the grinding surface.

[0013] Furthermore, the grooves are divided into two groups, the two groups of grooves are inclined in opposite directions and extend to two edges of the grinding surface respectively.

[0014] Furthermore, the depth of the groove gradually becomes shallower from one end of the grinding surface edge to the other end of the groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The diamond roller grinding surface of the utility model has grooves, which are beneficial to heat dissipation and chip removal when the diamond roller is working, thereby effectively improving the dressing efficiency and easing the workload;

[0017] The utility model has two inclined groups of grooves, which discharge chips to both sides of the roller respectively, and the groove span is not less than half of the width of the grinding surface, which is beneficial to the comprehensive chip discharge and comprehensive heat dissipation of the grinding surface; the groove depth gradually deepens from the middle of the grinding surface to the edge, that is, the groove bottom is inclined, which is beneficial to the rapid discharge of grinding debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic side view of the annular grinding surface of the utility model.

[0020] Figure 3 It is a schematic side view of the end face of the utility model.

[0021] Figure 4 It is an enlarged schematic diagram of the groove of the utility model.

[0022] In the figure: 1, wheel body; 2, grinding surface; 3, diamond abrasive grains; 4, annular groove; 5, groove; 6, annular protrusion; 7, mounting through hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" that may appear 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] The present invention is further described in detail below in conjunction with the embodiments.

[0027] The specific embodiment of the cycloidal diamond roller of the RV reducer provided by the utility model is as follows:

[0028] See also Figure 1-4 The RV reducer cycloidal diamond roller comprises a steel wheel body 1, a shaft hole is arranged at the center of the wheel body 1, annular protrusions 6 are arranged on both sides of the wheel body 1, the centers of the annular protrusions 6 on both sides correspond to and concentrically surround the shaft hole; a plurality of mounting through holes 7 are evenly arranged on the circumference of the wheel body 1, the mounting through holes 7 pass through the annular protrusions 6, that is, the ends of the mounting through holes 7 are located at the annular protrusions 6; through the mounting through holes 7, the diamond roller can be mounted on the dressing device of the grinding machine by using external structures such as bolts or clamps.

[0029] The outer ring side of the wheel body 1 has an annular grinding surface 2, on which diamond abrasive grains 3 are evenly arranged, and an annular groove 4 is arranged in the middle of the grinding surface 2; the cross section of the annular groove 4 is arc-shaped, and the arc edge of the cross section smoothly transitions with the outer grinding surface 2 of the annular groove 4. The annular groove 4, as a part of the grinding surface 2, is also provided with diamond abrasive grains 3, and the diamond abrasive grains 3 are embedded in the grinding surface 2. The grinding wheel is trimmed by the grinding surface 2 with the diamond abrasive grains 3, and the contour of the annular groove 4 of the diamond roller is copied to the tooth surface of the cycloidal gear through the grinding wheel.

[0030] A plurality of grooves 5 are evenly arranged on the grinding surface 2, and at least one end of the groove 5 extends to the edge of the grinding surface 2; in this embodiment, one end of the groove 5 is located in the middle of the grinding surface 2, and the other end extends to the edge of the grinding surface 2; the groove 5 is used to improve the heat dissipation and chip removal capabilities of the roller, and the inner wall thereof does not need to be inlaid with diamond abrasive grains 3. The groove 5 can significantly improve the heat dissipation and chip removal capabilities of the diamond roller, improve the stability of the continuous operation of the diamond roller, and is conducive to improving the dressing efficiency and quality assurance.

[0031] In this embodiment, the grooves 5 are all arranged at an angle; and the grooves 5 are divided into two groups, the two groups of grooves 5 are inclined in opposite directions and extend to the two edges of the grinding surface 2 respectively; the two groups of grooves 5 are evenly distributed along the circumference of the annular grinding surface 2, and the two groups of grooves 5 are alternately distributed, so that the debris formed on the grinding surface 2 is evenly discharged from the two side edges of the grinding surface 2.

[0032] The inner end of the groove 5, ie the end close to the middle of the grinding surface 2, corresponds to the direction of rotation of the diamond roller, which is conducive to chip removal. In some other embodiments, the shape of the groove 5 can be set to an arc.

[0033] In this embodiment, the axial span of each groove 5 is not less than one half of the axial width of the grinding surface 2; the inner end of the groove 5 extends at least to the middle of the annular groove 4, ensuring that the annular groove 4 of the grinding surface 2 has a certain heat dissipation and chip removal capacity, reducing the retention of debris in the annular groove 4, promoting heat dissipation in the annular groove 4, and thus ensuring the quality of grinding wheel dressing and cycloid gear processing.

[0034] In this embodiment, the depth of the groove 5 gradually becomes shallower from one end of the edge of the grinding surface 2 to the other end of the groove 5; that is, the cross-section of the groove 5 at the edge of the grinding surface 2 is larger, and the cross-section of the groove 5 in the middle of the grinding surface 2 is smaller, so that the chip removal channel formed by the groove 5 on the grinding surface 2 gradually becomes larger from the inside to the outside, which is conducive to the rapid discharge of debris to the outside and avoids the retention of debris.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cycloidal diamond roller for an RV reducer, comprising a wheel body (1), the outer ring side of the wheel body (1) having an annular grinding surface (2), diamond abrasive grains (3) being evenly arranged on the grinding surface (2), and an annular groove (4) being provided in the middle of the grinding surface (2); characterized in that: A plurality of grooves (5) are evenly arranged on the grinding surface (2), and at least one end of the groove (5) extends to the edge of the grinding surface (2).

2. The cycloid diamond roller for RV reducer according to claim 1, characterized in that: The wheel body (1) has an axial hole at its center, and an annular protrusion (6) is provided on both sides of the wheel body (1), the annular protrusion (6) surrounding the axial hole; and a plurality of mounting through holes (7) are evenly arranged on the circumference of the wheel body (1).

3. The cycloid diamond roller for RV reducer according to claim 1, characterized in that: One end of the groove (5) is located in the middle of the grinding surface (2), and the other end extends to the edge of the grinding surface (2).

4. The cycloid diamond roller for RV reducer according to claim 1 or 3, characterized in that: The grooves (5) are all arranged at an angle.

5. The cycloid diamond roller for RV reducer according to claim 1 or 3, characterized in that: The axial span of the groove (5) is not less than half the axial width of the grinding surface (2).

6. The cycloid diamond roller for RV reducer according to claim 4, characterized in that: The grooves (5) are divided into two groups, the two groups of grooves (5) are inclined in opposite directions and extend to two edges of the grinding surface (2) respectively.

7. The cycloid diamond roller for RV reducer according to claim 3, characterized in that: The depth of the groove (5) gradually decreases from one end of the edge of the grinding surface (2) to the other end of the groove (5).

Images