Anti-overload rotating assembly and meat mincing device

Abstract

The application provides an anti-overload rotating assembly, which comprises a driving disc body connected with a driving motor, a ball, and a driven adjusting member connected with a tool; corresponding positions of the driving disc body and the driven adjusting member are respectively provided with a first ball hole and a second ball hole for accommodating the ball; the driven adjusting member is configured to press the ball on the first ball hole and the second ball hole so that the driving motor drives the tool; when the rotating torque of the driving motor exceeds a first preset value, the ball is separated from the first ball hole to disconnect the driving motor and the tool. Thus, the motor or the tool can be prevented from being damaged due to excessive torque.

Description

[Technical Field]

[0001] This application relates to the field of kitchen appliances, and more particularly to an overload-resistant rotating assembly and a meat grinder. [Background Technology]

[0002] Tools driven by a motor and operating through rotational motion, such as meat grinders, can break their handles or damage their heads if the input torque is too high or if they encounter excessive resistance during operation.

[0003] Unless there is sufficient evidence to support it, the prior art described herein does not imply an admission that such prior art was known to a person skilled in the art prior to the filing date of this application. [Summary of the Invention]

[0004] One objective of this application is to provide an overload-resistant rotating assembly and a meat grinder to address at least one of the above-mentioned technical problems and / or other possible technical problems not mentioned in this application.

[0005] One embodiment of this application relates to an overload protection rotation assembly, including a drive disc body connected to a drive motor, ball bearings, and a driven adjustment member connected to a tool. The drive disc body and the driven adjustment member are respectively provided with a first ball bearing hole and a second ball bearing hole to accommodate the ball bearings. The driven adjustment member is configured to press the ball bearings into the first ball bearing hole and the second ball bearing hole to cause the drive motor to drive the tool. When the rotational torque of the drive motor exceeds a first preset value, the ball bearings disengage from the first ball bearing hole to disconnect the drive motor from the tool. This prevents damage to the motor or tool due to excessive torque.

[0006] In one possible design, the driven adjustment member includes a disc spring bracket, a disc spring, and an adjustment bushing sequentially fitted onto the tool; the adjustment bushing is configured to press the disc spring toward the ball so that the disc spring bracket presses against the ball.

[0007] In one possible design, the ball bearing includes a first position accommodated in the first ball bearing hole and the second ball bearing hole, and a second position disengaged from the first ball bearing hole; when the ball bearing is in the first position, the disc spring is in a partially compressed state; when the rotational torque of the drive motor exceeds a first preset value, the ball bearing is in the second position and further compresses the disc spring.

[0008] In one possible design, the adjusting bushing is configured to be movable along the axial direction of the tool.

[0009] In one possible design, the disc spring support has a receiving cavity for accommodating the outer edge of the disc spring; the adjusting bushing has a tapered ring on the side near the disc spring that abuts against the inner edge of the disc spring.

[0010] In one possible design, a limiting disc is provided between the disc spring support and the drive disc body to restrict the non-axial movement of the ball along the tool.

[0011] In one possible design, the drive disc body also includes a disc body support that is connected to and rotates with the drive motor.

[0012] In one possible design, the anti-overload rotation component further includes a pressure sensing component for monitoring the rotational torque of the drive motor; when the rotational torque of the drive motor exceeds a second preset value, the drive motor is powered off; wherein the second preset value is less than a first preset value.

[0013] Another embodiment of this application relates to a meat grinder, including an overload-resistant rotation assembly as described in any of the preceding claims.

[0014] In one possible design, the meat grinder further includes a roller housing the tool; a fastener is provided at the end of the roller away from the drive motor; the tool, the roller, and the fastener are all made of stainless steel and coated with a ceramic layer.

[0015] It should be noted that the terms "first" and "second" appearing in this specification are for descriptive purposes only and are not used to indicate relative importance; moreover, they do not define the number of features they define; furthermore, they do not define the logical or sequential relationship between the features they define.

[0016] The above-described technical solutions in this application are not intended to describe all possible implementations of this application. Throughout the application, numerous examples are provided to offer guidance, and these examples can be used in various feasible combinations. [Attached Image Description]

[0017] The following figures are for illustrative purposes only and do not limit the scope of this application, wherein:

[0018] Figure 1 This is a perspective exploded view of one embodiment of an anti-overload rotation component according to this application;

[0019] Figure 2 This is another perspective exploded view of an embodiment of an anti-overload rotation component of this application;

[0020] Figure 3 This is a cross-sectional view of an embodiment of an anti-overload rotation component of this application in a first position;

[0021] Figure 4 This is a cross-sectional view of an embodiment of an anti-overload rotation component of this application in a second position;

[0022] Figure 5 This is a cross-sectional view of an embodiment of a meat grinder according to this application.

[0023] Figure label:

[0024] 1-Drive disc body, 10-First ball hole, 2-Ball, 3-Driven adjusting component, 30-Second ball hole, 31-Disc spring bracket, 311-Pressure surface, 312-Accommodating surface, 32-Disc spring, 33-Adjusting bushing, 331-Taper ring, 4-Tool, 40-Limiting disc, 401-Limiting hole.

Detailed Implementation Methods

[0025] To make the purpose, solution, and beneficial effects of this application clearer, the application will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0026] Figure 1 and Figure 2 Exploded perspective views of different angles are shown for an embodiment of an anti-overload rotation component according to this application. (Refer to...) Figure 1 and Figure 2 The overload protection rotation assembly includes a drive disc 1 connected to a drive motor, ball bearings 2, and a driven adjustment member 3 connected to a connecting tool 4. The drive disc 1 and the driven adjustment member 3 are respectively provided with a first ball hole 10 and a second ball hole 30 to accommodate the ball bearings 2. The driven adjustment member 3 is configured to press the ball bearings 2 into the first ball hole 10 and the second ball hole 30, such as... Figure 3 As shown, the drive disc 1 and the driven adjustment member 3 are connected to the ball bearing 2 through their respective ball holes, and the tool 4 also rotates when the drive motor is working.

[0027] Meanwhile, to prevent damage to the drive motor or tool 4 due to excessive torque, when the rotational torque of the drive motor exceeds a first preset value, such as... Figure 4 As shown, the ball 2 disengages from the first ball hole 10 to disconnect the drive motor and the tool 4.

[0028] According to an exemplary embodiment of this application, the driven adjustment member 3 includes a disc spring bracket 31, a disc spring 32, and an adjustment bushing 33 sequentially sleeved on the tool 4. Specifically, the aforementioned portion of the driven adjustment member 3 is sleeved on the end of the tool 4 near the drive motor. The adjustment bushing 33 is configured to press the disc spring 32 toward the ball 2, so that the disc spring bracket 31 presses the ball 2 against the drive disc body 1. The ball 2 is held in the position of the first ball hole 10 and the second ball hole 30, which enables the connection between the drive motor and the tool 4.

[0029] Specifically, the ball 2 includes a first position accommodated in the first bead hole 10 and the second bead hole 30, and a second position disengaged from the first bead hole 10. For example... Figure 3 As shown, when the ball bearing 2 is in the first position, in order to ensure that the disc spring bracket 31 can move away from the drive disc body 1 to make room for the ball bearing 2 to disengage from the first ball hole 10, the disc spring 32 should be in a partially compressed state. When the rotational torque of the drive motor exceeds the first preset value, such as Figure 4 As shown, the ball 2 is squeezed by the first ball hole 10 and disengages from the first ball hole 10, which is the second position. At this time, the drive motor and the tool 4 are disengaged, thus avoiding damage to the device due to excessive torque.

[0030] According to an exemplary embodiment of this application, the adjusting sleeve 33 is configured to be movable along the axial direction of the tool 4. Specifically, the adjusting sleeve 33 includes a third position closer to the drive disc 1 and a fourth position farther from the drive disc 1. When the adjusting sleeve 33 is in the third position, the disc spring 32 is already under greater compression compared to the fourth position, and the torque required to disengage the ball 2 from the first ball hole 10 is greater at this time. Thus, by changing the position of the adjusting sleeve 33 along the axial direction of the tool 4, the magnitude of the aforementioned first preset value can be adjusted, allowing the anti-overload rotation component to flexibly adapt to various needs.

[0031] According to an exemplary embodiment of this application, the disc spring support 31 includes a pressing surface 311 for pressing the ball 2 and a receiving surface 312 opposite to the pressing surface 311. A second ball hole 30 is provided on the pressing surface 311. The outer periphery of the receiving surface 312 has a protruding peripheral wall along the direction close to the adjusting sleeve 33 to form a receiving cavity for receiving the outer edge of the disc spring 32. Optionally, the outer edge of the disc spring 32 abuts against the aforementioned peripheral wall. Further, the adjusting sleeve 33 has a tapered ring 331 on the side near the disc spring 32 that abuts against the inner edge of the disc spring 32. Thus, both the inner and outer edges of the disc spring 32 have abutting positions, making the structure of the entire driven adjusting member 3 more stable.

[0032] According to an exemplary embodiment of this application, a limiting disk 40 is provided between the disc spring support 31 and the drive disk body 1. The limiting disk 40 is configured to allow the ball 2 to move axially along the tool 4, but restrict other non-axial movements. Specifically, the limiting disk 40 has limiting holes 401 corresponding to the first ball hole 10 and the second ball hole 30. The diameter of the limiting holes 401 is close to the diameter of the ball 2; at the same time, the thickness of the limiting disk 40 along the axial direction of the tool 4 should be significantly smaller than the diameter of the ball 2 to ensure that the ball 2 can be simultaneously accommodated in the first ball hole 10 and the second ball hole 30. Further, as... Figure 1 As shown, the limiting plate 40 can be integrally formed on the end of the tool 4 near the drive motor.

[0033] According to an exemplary embodiment of this application, the drive disc 1 further includes a disc support 11 connected to and rotating with the drive motor. The disc support 11 is connected to the output end of the drive motor and is used to transmit the rotational motion of the drive motor to the drive disc 1.

[0034] According to an exemplary embodiment of this application, the aforementioned overload protection rotation component further includes a pressure sensing component (not shown) for monitoring the rotational torque of the drive motor. When the rotational torque of the drive motor exceeds a second preset value, the drive motor is powered off. Optionally, the pressure sensing component can determine whether the load of the drive motor has reached a preset value by monitoring parameters such as current. Further, the aforementioned second preset value is less than the first preset value, thereby the judgment of the sensing component takes precedence over the mechanical forced disconnection. The mechanical disconnection will only be initiated under the premise of sensor failure, further protecting the firmware structure.

[0035] This application also proposes a meat grinder including any of the above-mentioned overload protection rotation components. For example... Figure 5 As shown, the meat grinder also includes a drum 5 that houses the tool 4, with a fastener 50 at the end of the drum 5 away from the drive motor. Specifically, the tool 4 is constructed as a screw structure, which rotates with the inner wall of the drum 5 to grind the meat, and the fastener 50 is used to fix the screw to the drum 5.

[0036] Furthermore, tool 4, roller 5, and fastener 50 are all made of stainless steel and coated with a ceramic layer. Therefore, these components of the meat grinder are dishwasher safe and resistant to corrosion.

[0037] The components of different embodiments can be combined with each other in any feasible manner to achieve the purpose of this application.

[0038] It should be further noted that this application should not be construed as limited to the embodiments described above, but rather as covering all possible implementations determined by the claims in conjunction with the disclosure in the specification. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from its scope are within the protection scope of this application.

Claims

1. An overload-resistant rotation component, characterized in that: Includes a drive disc body connected to the drive motor, ball bearings, and a driven adjustment component for connecting tools; The drive disc and the driven adjustment member are respectively provided with a first ball hole and a second ball hole to accommodate the ball; The driven adjustment member is configured to press the ball into the first ball hole and the second ball hole so that the drive motor drives the tool; When the rotational torque of the drive motor exceeds a first preset value, the ball disengages from the first ball hole to disconnect the drive motor from the tool.

2. The anti-overload rotation assembly according to claim 1, characterized in that: The driven adjustment component includes a disc spring bracket, a disc spring, and an adjustment shaft sleeve sequentially sleeved on the tool; The adjusting bushing is configured to press the disc spring toward the ball so that the disc spring support presses against the ball.

3. The anti-overload rotation assembly according to claim 2, characterized in that: The ball includes a first position received in the first bead hole and the second bead hole, and a second position disengaged from the first bead hole; When the ball is in the first position, the disc spring is in a partially compressed state; When the rotational torque of the drive motor exceeds a first preset value, the ball bearing is in the second position and further compresses the disc spring.

4. The anti-overload rotation assembly according to claim 2, characterized in that: The adjusting bushing is configured to move axially along the tool.

5. The anti-overload rotation assembly according to claim 2, characterized in that: The disc spring bracket is provided with a receiving cavity to accommodate the outer edge of the disc spring; The adjusting bushing has a tapered ring on the side near the disc spring that abuts against the inner edge of the disc spring.

6. The anti-overload rotation assembly according to claim 2, characterized in that: A limiting plate is provided between the disc spring bracket and the drive disc body to restrict the non-axial movement of the ball along the tool.

7. The anti-overload rotation assembly according to claim 1, characterized in that: The drive disc also includes a disc support that is connected to and rotates with the drive motor.

8. The anti-overload rotation assembly according to claim 1, characterized in that: It also includes a pressure sensing component for monitoring the rotational torque of the drive motor; When the rotational torque of the drive motor exceeds a second preset value, the drive motor is powered off; wherein the second preset value is less than the first preset value.

9. A meat grinding device, characterized in that: Includes the overload protection rotation assembly as described in any one of claims 1-8.

10. The meat grinding device according to claim 9, characterized in that: It also includes a roller for housing the tool; The end of the roller away from the drive motor is provided with a fastener; The tool, the roller, and the fastener are all made of stainless steel and coated with a ceramic layer.

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