Tool apron bearing double-sealing structure and stirrer

Abstract

The tool apron bearing double-sealing structure comprises a tool apron, a tool shaft, an oil-retaining bearing, a bearing sleeve, an end face sealing ring and a radial sealing ring, the tool shaft is installed in the oil-retaining bearing, the oil-retaining bearing is installed in the bearing sleeve, the bearing sleeve is installed on the tool apron, the end face sealing ring is connected to the top face of the bearing sleeve in a sealed mode, and the radial sealing ring is connected to the top face of the bearing sleeve. Liquid and impurities are prevented from entering the inner hole surface of the oil bearing from the end face, and lubricating oil is prevented from leaking from the end face; the radial sealing ring is located between the inner top face of the bearing sleeve and the top face of the oil bearing, an inner hole of the radial sealing ring is in sealed connection with the outer circle of the cutter shaft, and the periphery of the radial sealing ring is in sealed connection with the inner wall of the bearing sleeve. The radial sealing ring can prevent liquid and impurities from entering the surface of the inner hole of the oil bearing in the radial direction and prevent lubricating oil from leaking in the radial direction. Liquid and impurities in a container can be effectively prevented from seeping into the inner hole of the oil bearing, the service life of the oil bearing is prolonged, and the use feeling of a user is improved.

Description

Technical Field

[0001] This application relates to the field of cutter shaft sealing technology, and in particular to a double-seal structure for a cutter holder bearing and a mixer. Background Art

[0002] Currently, existing oil-impregnated bearings for tool holders on the market have a single sealing structure and poor sealing effect. During product use, when the sealing surface of the sealing ring wears down, liquid and impurities in the container will seep into the inner surface of the oil-impregnated bearing, affecting the precipitation and lubrication of the bearing oil. This can lead to grinding and enlargement of the inner bore of the oil-impregnated bearing, ultimately affecting the performance of the product. To address this, this utility model proposes a double-sealed structure for tool holder bearings and a mixer. Utility Model Content

[0003] This application provides a double-seal structure for a tool holder bearing and a mixer, which effectively prevents liquid and impurities in the container from seeping into the inner hole of the oil-impregnated bearing, greatly improving the service life of the oil-impregnated bearing and the user's experience.

[0004] The first aspect of this application provides a double-seal structure for a tool holder bearing, comprising: a tool holder, a tool shaft, an oil-impregnated bearing, a bearing sleeve, an end face seal ring, and a radial seal ring;

[0005] The cutter shaft is mounted in the oil-impregnated bearing;

[0006] The oil-impregnated bearing is installed inside the bearing sleeve;

[0007] The bearing sleeve is mounted on the tool holder;

[0008] The end face sealing ring is sealed to the top surface of the bearing sleeve to prevent liquid and impurities from entering the inner surface of the oil-impregnated bearing from the end face and to prevent lubricating oil from leaking from the end face.

[0009] The radial sealing ring is located between the inner top surface of the bearing sleeve and the top surface of the oil-impregnated bearing. The inner hole of the radial sealing ring is sealed to the outer circle of the cutter shaft, and the outer circumference of the radial sealing ring is sealed to the inner wall of the bearing sleeve. This allows the radial sealing ring to prevent liquid and impurities from entering the inner surface of the oil-impregnated bearing radially and to prevent lubricating oil from leaking in the radial direction.

[0010] Optionally, the top surface of the bearing sleeve is provided with a sealing groove for installing the end face sealing ring.

[0011] Optionally, the radial sealing ring is interference-fitted onto the cutter shaft.

[0012] Optionally, the radial sealing ring is interference-fitted with the inner wall of the bearing sleeve.

[0013] Optionally, it also includes: a glass and a base;

[0014] The glass cup is nested and connected within the cup holder;

[0015] The knife holder is installed inside the cup holder.

[0016] Optionally, a glass sealing ring is provided between the glass and the glass base.

[0017] Optionally, a knife holder sealing ring is provided between the knife holder and the cup holder.

[0018] A second aspect of this application provides a mixer that includes the aforementioned double-seal structure for the cutter head bearing.

[0019] As can be seen from the above technical solutions, the embodiments of this application have the following advantages: This double-seal structure of the tool holder bearing, by setting an end face seal ring and a radial seal ring, and using a double-seal structure of end face sealing and radial sealing, can effectively prevent liquid and impurities in the container from seeping into the inner hole of the oil-impregnated bearing, affecting the service life of the oil-impregnated bearing. At the same time, it can prevent the oil of the oil-impregnated bearing from seeping into the container and contaminating the food, thereby greatly improving the user experience and the service life of the product. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the double-seal structure of the tool holder bearing in the embodiments of this application;

[0021] The attached figures are labeled as follows:

[0022] 1-Glass cup, 2-End face seal ring, 3-Bearing sleeve, 4-Oil-impregnated bearing, 5-Radial seal ring, 6-Cutter shaft, 7-Cutter holder, 8-Glass cup seal ring, 9-Cutter holder seal ring, 10-Cup holder. DETAILED DESCRIPTION

[0023] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] This application provides an embodiment of a double-seal structure for a tool holder bearing. Please refer to the following for details. Figure 1 .

[0027] The double-sealed structure of the tool holder bearing in this embodiment includes: a tool holder 7, a tool shaft 6, an oil-impregnated bearing 4, a bearing sleeve 3, an end face sealing ring 2, and a radial sealing ring 5. The tool shaft 6 is installed in the oil-impregnated bearing 4, which is installed inside the bearing sleeve 3. The bearing sleeve 3 is installed on the tool holder 7. The end face sealing ring 2 is sealed to the top surface of the bearing sleeve 3 to prevent liquid and impurities from entering the inner surface of the oil-impregnated bearing 4 from the end face and to prevent lubricating oil from leaking from the end face. The radial sealing ring 5 is located between the inner top surface of the bearing sleeve 3 and the top surface of the oil-impregnated bearing 4. The inner hole of the radial sealing ring 5 is sealed to the outer circle of the tool shaft 6, and the outer circumference of the radial sealing ring 5 is sealed to the inner wall of the bearing sleeve 3. This allows the radial sealing ring 5 to prevent liquid and impurities from entering the inner surface of the oil-impregnated bearing 4 radially and to prevent lubricating oil from leaking radially.

[0028] It should be noted that the double-seal structure of this tool holder bearing, by setting an end face seal ring 2 and a radial seal ring 5, uses a double sealing structure of end face sealing and radial sealing, which can effectively prevent liquid and impurities in the container from seeping into the inner hole of the oil-impregnated bearing 4 and affecting the service life of the oil-impregnated bearing 4. At the same time, it can prevent the oil of the oil-impregnated bearing 4 from seeping into the container and contaminating the food, thereby greatly improving the user experience and the service life of the product.

[0029] The above is Embodiment 1 of a double-seal structure for a tool holder bearing provided in this application. The following is Embodiment 2 of a double-seal structure for a tool holder bearing provided in this application. Please refer to the following for details. Figure 1 .

[0030] The double-sealed structure of the tool holder bearing in this embodiment includes: a tool holder 7, a tool shaft 6, an oil-impregnated bearing 4, a bearing sleeve 3, an end face sealing ring 2, and a radial sealing ring 5. The tool shaft 6 is installed in the oil-impregnated bearing 4, which is installed inside the bearing sleeve 3. The bearing sleeve 3 is installed on the tool holder 7. The end face sealing ring 2 is sealed to the top surface of the bearing sleeve 3 to prevent liquid and impurities from entering the inner surface of the oil-impregnated bearing 4 from the end face and to prevent lubricating oil from leaking from the end face. The radial sealing ring 5 is located between the inner top surface of the bearing sleeve 3 and the top surface of the oil-impregnated bearing 4. The inner hole of the radial sealing ring 5 is sealed to the outer circle of the tool shaft 6, and the outer circumference of the radial sealing ring 5 is sealed to the inner wall of the bearing sleeve 3. This allows the radial sealing ring 5 to prevent liquid and impurities from entering the inner surface of the oil-impregnated bearing 4 radially and to prevent lubricating oil from leaking radially.

[0031] Understandably, the end face seal 2 can prevent liquid and impurities from seeping into the outer surface of the cutter shaft 6; the radial seal 5, as a reinforced seal, can prevent liquid from seeping into the inner surface of the oil-impregnated bearing 4 in the event of failure of the end face seal 2, and can also prevent the lubricating oil of the oil-impregnated bearing 4 from leaking outward.

[0032] Specifically, the top surface of the bearing sleeve 3 may be provided with a sealing groove for installing the end face sealing ring 2.

[0033] The radial seal ring 5 can be interference-fitted onto the cutter shaft 6; the radial seal ring 5 can be interference-fitted with the inner wall of the bearing sleeve 3.

[0034] It also includes: a glass cup 1 and a cup holder 10, with the glass cup 1 nested and connected inside the cup holder 10, and the knife holder 7 installed inside the cup holder 10.

[0035] Specifically, a glass cup sealing ring 8 is provided between the glass cup 1 and the cup base 10. Its function is to prevent external impurities from entering the glass cup 1 and also to prevent the liquid inside the glass cup 1 from leaking to the outside through the gap between the glass cup 1 and the cup base 10. A knife holder sealing ring 9 is provided between the knife holder 7 and the cup base 10. It can prevent the liquid inside the glass cup 1 from leaking to the outside through the gap between the knife holder 7 and the cup base 10 and also prevent external impurities from entering the glass cup 1.

[0036] Understandably, because the bottom of the end face seal ring 2 is tightly sealed with the top surface of the bearing sleeve 3, the liquid in the glass cup 1 cannot enter the outer surface of the cutter shaft 6 through the bottom of the end face seal ring 2 and the top surface of the bearing sleeve 3. During use, if the tight seal between the bottom of the end face seal ring 2 and the top surface of the bearing sleeve 3 fails, the liquid in the glass cup 1 will enter the upper surface of the radial seal ring 5 through the gap between the bottom of the end face seal ring 2 and the top surface of the bearing sleeve 3, and the gap between the outer circle of the cutter shaft 6 and the inner hole of the bearing sleeve 3. At this time, because the inner hole of the radial seal ring 5 is tightly sealed with the outer circle of the cutter shaft 6, the liquid still cannot enter the inner surface of the oil-impregnated bearing 4 through the gap between the inner hole of the oil-impregnated bearing 4 and the cutter shaft 6. The dual sealing effect of the end face seal and the radial seal greatly improves the reliability of the seal and enhances the user experience.

[0037] When the gap between the outer circle of the cutter shaft 6 and the inner hole of the bearing sleeve 3 enters the upper surface of the radial seal ring 5, the liquid cannot enter the inner surface of the oil-impregnated bearing 4 through the gap between the inner hole of the oil-impregnated bearing 4 and the cutter shaft 6 because the inner hole of the radial seal ring 5 is tightly fitted and sealed with the outer circle of the cutter shaft 6.

[0038] This application also provides a mixer that includes the above-described double-seal structure for the cutter head bearing.

[0039] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A double-seal structure for a tool holder bearing, characterized in that, include: Tool holder, tool shaft, oil-impregnated bearing, bearing sleeve, end face seal ring and radial seal ring; The cutter shaft is mounted in the oil-impregnated bearing; The oil-impregnated bearing is installed inside the bearing sleeve; The bearing sleeve is mounted on the tool holder; The end face sealing ring is sealed to the top surface of the bearing sleeve to prevent liquid and impurities from entering the inner surface of the oil-impregnated bearing from the end face and to prevent lubricating oil from leaking from the end face. The radial sealing ring is located between the inner top surface of the bearing sleeve and the top surface of the oil-impregnated bearing. The inner hole of the radial sealing ring is sealed to the outer circle of the cutter shaft, and the outer circumference of the radial sealing ring is sealed to the inner wall of the bearing sleeve. This allows the radial sealing ring to prevent liquid and impurities from entering the inner surface of the oil-impregnated bearing radially and to prevent lubricating oil from leaking in the radial direction.

2. The double-seal structure of the tool holder bearing according to claim 1, characterized in that, The top surface of the bearing sleeve is provided with a sealing groove for installing the end face sealing ring.

3. The double-seal structure of the tool holder bearing according to claim 1, characterized in that, The radial sealing ring is interference-fitted onto the cutter shaft.

4. The double-seal structure of the tool holder bearing according to claim 1, characterized in that, The radial sealing ring is interference-fitted with the inner wall of the bearing sleeve.

5. The double-seal structure of the tool holder bearing according to claim 1, characterized in that, Also includes: Glass and stand; The glass cup is nested and connected within the cup holder; The knife holder is installed inside the cup holder.

6. The double-seal structure of the tool holder bearing according to claim 5, characterized in that, A glass sealing ring is provided between the glass and the glass base.

7. The double-seal structure of the tool holder bearing according to claim 5, characterized in that, A sealing ring for the knife holder is provided between the knife holder and the cup holder.

8. A mixer, characterized in that, include: The tool holder bearing with double sealing structure as described in any one of claims 1-7.

Images