Torque measuring mechanism and torque measuring device

Abstract

This application provides a torque measuring mechanism and a torque measuring device, relating to the field of torque testing technology. The torque measuring device includes a housing and a measuring component; the housing includes a first cavity and a second cavity coaxial and connected along a first direction, the first cavity being used to at least partially accommodate a motor; the measuring component is used to measure the stall torque of the motor and is at least partially engaged in the second cavity, with one end of the measuring component facing the first cavity being detachably connected to the motor.

Description

Technical Field

[0001] This application relates to the field of torque testing technology, and in particular to a torque measuring mechanism and a torque measuring device. Background Technology

[0002] To ensure the high efficiency of industrial robots, the motors at each joint of the industrial robot must be able to overcome static friction and rapidly accelerate the load during startup to ensure production safety. Therefore, it is necessary to accurately measure the stall torque of the motor to help analyze the motor's performance. Utility Model Content

[0003] The purpose of this application is to provide a torque measuring mechanism and a torque measuring device, the technical solution of which is as follows:

[0004] The first aspect of this application provides a torque measuring mechanism, comprising:

[0005] The housing includes a first cavity and a second cavity that are coaxial and connected along a first direction, the first cavity being used to at least partially accommodate the motor;

[0006] A measuring component is used to measure the stall torque of the motor and is at least partially engaged in the second cavity. One end of the measuring component facing the first cavity is used for detachable connection with the motor.

[0007] In some embodiments, the aforementioned torque measuring mechanism includes a measuring component comprising a transmission member, a stop member, and a measuring member. The transmission member is at least partially inserted through the second cavity. The first end of the transmission member facing the first cavity is detachably connected to a motor to transmit the stall torque of the motor. The second end of the transmission member away from the first cavity is fixedly connected to a measuring member capable of measuring the stall torque. The stop member is sleeved and fixed to the transmission member and engaged with the second cavity.

[0008] In some embodiments, the aforementioned torque measuring mechanism includes a plurality of mounting holes at the first end of the transmission member, which are arranged in a circumferential array for detachable connection with the motor assembly.

[0009] In some embodiments, the aforementioned torque measuring mechanism includes a second cavity having a regular hexagonal inner edge in a cross-section in a second direction, the second direction being perpendicular to the first direction; a first cavity having a circular inner edge in a cross-section in a second direction, the circular inner edge being used to match the outer edge of the motor; and the outer edge of the stop being regular hexagonal.

[0010] In some embodiments, the aforementioned torque measuring mechanism has an opening on the sidewall of the first cavity away from the second cavity, the opening forming a skirt on the sidewall, the skirt protruding from the inner edge of the circle toward the axis of the motor.

[0011] In some embodiments, the aforementioned torque measuring mechanism includes a housing comprising a hinged first and second sub-housing; wherein the first sub-housing engages with the second sub-housing to form a first cavity and a second cavity.

[0012] In some embodiments, the aforementioned torque measuring mechanism includes a first sub-shell and a second sub-shell connected along a first direction, and a second sub-shell including a third sub-shell and a fourth sub-shell connected along the first direction. The first sub-shell is engaged with the third sub-shell to form a first cavity, and the second sub-shell is engaged with the fourth sub-shell to form a second cavity.

[0013] In some embodiments, the aforementioned torque measuring mechanism includes a first latching member at one end of the first housing opposite to the hinged connection position with the second housing, and a second latching member matching the first latching member at one end of the second housing opposite to the hinged connection position, wherein the first latching member is used to engage with the second latching member.

[0014] In some embodiments, the aforementioned torque measuring mechanism has a snap-fit ​​structure protruding from the outer edge of the housing.

[0015] A second aspect of this application provides a torque measuring device, comprising:

[0016] Support section;

[0017] A torque measuring mechanism is slidably connected to a support portion, wherein the torque measuring mechanism includes:

[0018] The housing includes a first cavity and a second cavity that are coaxial and connected along a first direction, the first cavity being used to at least partially accommodate the motor;

[0019] A measuring component is used to measure the stall torque of the motor and is at least partially engaged in the second cavity. One end of the measuring component facing the first cavity is used for detachable connection with the motor.

[0020] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure 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 only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1This schematic diagram illustrates an isometric structure of a torque measuring mechanism provided in this application.

[0023] Figure 2 This schematic diagram illustrates an isometric structure of a torque measuring mechanism housing a motor, as provided in this application.

[0024] Figure 3 This schematic diagram illustrates the structure of the hexagonal inner edge of the second cavity of a torque measuring mechanism provided in this application;

[0025] Figure 4 This schematic diagram illustrates a cross-sectional view of the first cavity of a torque measuring mechanism provided in this application.

[0026] Figure 5 The schematic diagram shows the isometric structure of the first and second housings of a torque measuring mechanism provided in this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Shell; 11. First cavity; 12. Second cavity; 13. First sub-shell; 14. Second sub-shell; 15. Snap-fit ​​structure; 111. Circular inner edge; 112. Opening; 113. Skirt; 121. Regular hexagonal inner edge; 131. First sub-shell; 132. Second sub-shell; 133. First snap-fit ​​component; 141. Third sub-shell; 142. Fourth sub-shell; 143. Second snap-fit ​​component;

[0029] 2. Measuring component; 21. Transmission component; 22. Stop component; 23. Measuring component; 211. Assembly hole;

[0030] 3. Motor;

[0031] A. First direction; B. Second direction. Detailed Implementation

[0032] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0033] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0034] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0036] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0037] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as having idealized or highly formalized meanings, unless expressly defined herein.

[0038] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0039] Example 1

[0040] like Figure 1 and Figure 2As shown, the first aspect of this application provides a torque measuring mechanism, including a housing 1 and a measuring component 2; the housing 1 includes a first cavity 11 and a second cavity 12 coaxial and connected along a first direction A, the first cavity 11 is used to at least partially accommodate a motor 3; the measuring component 2 is used to measure the stall torque of the motor 3 and is at least partially engaged in the second cavity 12, and one end of the measuring component 2 facing the first cavity 11 is used to be detachably connected to the motor 3.

[0041] Specifically, this application configures the housing 1 as a first cavity 11 and a second cavity 12 coaxial and connected along a first direction A, where the first direction A can be the axial direction of the motor 3. The first cavity 11 is used to at least partially accommodate the motor 3, and the measuring component 2 is at least partially engaged within the second cavity 12. The first cavity 11 and the second cavity 12 provide placement space and support for the motor 3 and the measuring component 2, respectively, ensuring precise alignment between the motor 3 and the measuring component 2 and facilitating direct connection for measuring the stall torque of the motor 3. The specific structural shape of the first cavity 11 and the second cavity 12 can be matched with the outer edge of the motor 3 to be measured and the measuring component 2, and is not specifically limited.

[0042] This application, by setting the measuring component 2 to be directly connected to the motor 3, can measure the stall torque value at the instant the motor 3 starts, avoiding the lag of indirect measurement and also avoiding energy loss or stress concentration caused by other links in non-direct measurement, thus improving the accuracy of the measurement results and helping to accurately analyze the performance of the motor 3. In order to transmit the stall torque of the motor 3, the measuring component 2 of this application may include a coupling, splined shaft, or other structures directly connected to the motor 3 to transmit torque. The end of the coupling, splined shaft, or other structures facing away from the motor 3 may be equipped with a strain gauge torque sensor, magnetoelectric torque sensor, capacitive torque sensor, piezoelectric torque sensor, or other measuring devices to obtain the stall torque value, and the specific type is not limited.

[0043] Furthermore, during the transmission of stall torque of motor 3, in order to ensure the accuracy of the measurement results of the measuring device at the other end, clamping or locking structures can be set for the coupling, spline shaft and other structures directly connected to motor 3 to clamp or lock them securely. Alternatively, a stop structure can be set to fix the coupling, spline shaft and other structures in the second cavity 12. The specific structure is not limited, as long as it can provide support and prevent the measuring component 2 from shifting when subjected to large torque, thus ensuring the accuracy of the measurement results.

[0044] In one embodiment, the measurement operation can be performed using the following process: First, align the pin of motor 3 with the pin hole of measuring component 2. Then, slightly twist motor 3 at a certain angle so that motor 3 is aligned and inserted into the first cavity 11. At the same time, measuring component 2 is also slightly rotated to be inserted into the second cavity 12. Measuring component 2 and motor 3 can be directly and rigidly connected. At the moment motor 3 starts, measuring component 3 can measure the value of stall torque.

[0045] This application provides a torque measuring mechanism, including a housing 1 and a measuring component 2. The housing 1 includes a first cavity 11 and a second cavity 12 coaxial and connected along a first direction A. The first cavity 11 is used to at least partially accommodate a motor 3. The measuring component 2 is used to measure the stall torque of the motor 3 and is at least partially engaged within the second cavity 12. One end of the measuring component 2 facing the first cavity 11 is used for detachable connection with the motor 3. The torque measuring mechanism provided by this application accommodates the motor 3 (to be measured stall torque) and the measuring component 2 respectively through the first cavity 11 and the second cavity 12 of the housing 1, allowing the measuring component 2 and the motor 3 to be directly and rigidly connected. It can measure the stall torque value at the instant the motor 3 starts, avoiding the lag of indirect measurement, improving the accuracy of the measurement results, and helping to accurately analyze the performance of the motor 3.

[0046] like Figure 1 As shown, in some embodiments, the measuring component 2 includes a transmission member 21, a stop member 22, and a measuring member 23. The transmission member 21 is at least partially inserted through the second cavity 12. The first end of the transmission member 21 facing the first cavity 11 is used to be detachably connected to the motor 3 to transmit the stall torque of the motor 3. The second end of the transmission member 21 away from the first cavity 11 is fixedly connected to the measuring member 23, which is capable of measuring the stall torque. The stop member 22 is sleeved and fixed to the transmission member 21 and engaged in the second cavity 12.

[0047] Specifically, to achieve direct and accurate testing of the stall torque of motor 3, the measuring component 2 of this application includes a transmission component 21, a stop component 22, and a measuring component 23. The transmission component 21 transmits at least partially through the second cavity 12. The first end of the transmission component 21 facing the first cavity 11 is detachably connected to the motor 3 to transmit the stall torque of the motor 3. The second end of the transmission component 21 facing away from the first cavity 11 is fixedly connected to the measuring component 23, which can measure the stall torque. The transmission component 21 enables the stall torque generated by the motor 3 to be transmitted to the measuring component 23 without loss, thereby directly obtaining the numerical result of the stall torque from the output end of the motor 3 through the measuring component 23, avoiding measurement errors caused by intermediate steps such as interval measurements. The transmission component 21 can be a coupling, splined shaft, or other structural forms, with no specific limitation, as long as it can stably transmit the stall torque generated by the motor 3. The measuring component 23 can be a strain gauge torque sensor, magnetoelectric torque sensor, capacitive torque sensor, piezoelectric torque sensor, or other similar types, with no specific limitation, as long as it can accurately measure the numerical result of the stall torque.

[0048] To provide support for the transmission component 21 and prevent it from shifting under high torque, thus affecting the accuracy of the measurement results, the measuring assembly 2 of this application is also provided with a stop 22. The stop 22 is sleeved and fixed to the transmission component 21 and engaged with the second cavity 12 to achieve a tight fit with the second cavity 12, thereby improving the stability of the measuring assembly 2 during the test and ensuring measurement accuracy. The stop 22 may have an outer edge that mates with the inner wall of the second cavity 12 to achieve a proper engagement.

[0049] like Figure 1 As shown, in some embodiments, the first end of the transmission member 21 is provided with a plurality of mounting holes 211, which are arranged in a circumferential array for detachable connection with the mounting parts of the motor 3.

[0050] Specifically, to improve the stability of the connection between the motor 3 and the transmission component 21 and ensure the accurate transmission of stall torque, this application provides multiple mounting holes 211 at the first end of the transmission component 21. These mounting holes 211 are arranged in a circumferential array for detachable connection with the motor 3's mounting components. The arrangement of these circumferentially arrayed mounting holes 211 ensures a uniform distribution of the connection points between the motor 3 and the transmission component 21, thereby evenly distributing the force borne at the connection point, avoiding stress concentration at a single point, and improving the overall stability of the structure. It also provides a multi-point fixing method to increase the friction generated at the connection point, preventing loosening due to vibration or other external forces, ensuring reliability during use, and thus improving the accuracy of stall torque measurement results. The mounting holes 211 are detachably connected to the motor 3's mounting components. These components can be threaded holes, pin holes, keyways, or other structures opened on the motor 3 shaft or mounting flange. The detachable connection can be achieved through bolt connections, pin connections, keyway fittings, etc., and is not limited to any specific method.

[0051] like Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, the second cavity 12 has a regular hexagonal inner edge 121 in the cross section of the second direction B, and the second direction B is perpendicular to the first direction A; the first cavity 11 has a circular inner edge 111 in the cross section of the second direction B, and the circular inner edge 111 is used to match the outer edge of the motor 3; the outer edge of the stop 22 is regular hexagonal.

[0052] Specifically, to effectively limit the rotation or displacement of the stop 22 and its connected transmission component 21 during measurement, this application designs the second cavity 12 to have a regular hexagonal inner edge 121 in a cross-section perpendicular to the first direction A in the second direction B, and the outer edge of the stop 22 is also regular hexagonal. This hexagonal structure design provides more contact points and stronger mechanical constraint between the stop 22 and the second cavity 12, reducing vibration interference and relative sliding, and improving the overall stability of the torque measuring mechanism. Simultaneously, the regular hexagonal structure design facilitates the operator's positioning and installation of the stop 22 into the second cavity 12, simplifying operation and improving work efficiency.

[0053] Furthermore, this application sets the first cavity 11 to have a circular inner edge 111 in the cross section of the second direction B, so that the circular inner edge 111 of the first cavity 11 can match the outer edge of the motor 3, ensuring accurate alignment and stable installation. The specific size of the circular outer edge can be adjusted to adapt to different specifications of motor 3. When the outer edge of the motor 3 to be measured is convex or concave, the inner edge of the first cavity 11 can also be adaptively adjusted to match the corresponding outer edge of the motor 3. The specific adjustment is not limited, as long as the first cavity 11 can stably and reliably accommodate the motor 3.

[0054] like Figure 1 and Figure 4 As shown, in some embodiments, the first cavity 11 has an opening 112 on its side wall away from the second cavity 12. The opening 112 causes the side wall to form a skirt 113, which protrudes from the inner circular edge 111 toward the axis of the motor 3.

[0055] Specifically, to improve the mechanical stability and safety of the motor 3 within the first cavity 11, this application provides an opening 112 on the side wall of the first cavity 11 opposite to the second cavity 12. The opening 112 forms a skirt 113 on the side wall, which protrudes from the inner circular edge 111 towards the axis of the motor 3. This skirt 113 wraps around the outer edge of the motor 3 on one side of the first cavity 11, increasing the contact area between the motor 3 and the first cavity 11, thus improving mechanical stability during stall torque measurement. It also prevents the motor 3 from shifting or sliding out of the first cavity 11 during high-speed operation or impact, improving stability during operation. Furthermore, the skirt 113 acts as a buffer and protector between the operator and the motor 3, enhancing safety. Additionally, the opening 112 within the skirt 113 on the side wall of the first cavity 11 opposite to the second cavity 12 allows the operator to directly observe the operating status of the motor 3 within the first cavity 11, facilitating early warning and troubleshooting during measurement.

[0056] like Figure 5 As shown, in some embodiments, the housing 1 includes a hinged first shell 13 and a second shell 14; wherein the first shell 13 is fastened to the second shell 14 to form a first cavity 11 and a second cavity 12.

[0057] Specifically, this application provides a housing 1 comprising a hinged first sub-shell 13 and a second sub-shell 14. The first sub-shell 13 is fastened to the second sub-shell 14 to form a first cavity 11 and a second cavity 12. This allows the first sub-shell 13 and the second sub-shell 14 to be opened or closed as needed, simplifying the installation and disassembly of the motor 3 and the measuring component 2. This facilitates operator work and better adapts to scenarios where the measured motor 3 needs to be replaced, reducing downtime and improving work efficiency. Furthermore, the hinged design enhances the structural strength and operational convenience of the connection between the first sub-shell 13 and the second sub-shell 14. The hinge between the first sub-shell 13 and the second sub-shell 14 can be achieved using a hinged joint, spring hinge, magnetic hinge, etc., as long as stable opening and closing between them is ensured.

[0058] like Figure 5As shown, in some embodiments, the first sub-shell 13 includes a first sub-shell 131 and a second sub-shell 132 connected along the first direction A, and the second sub-shell 14 includes a third sub-shell 141 and a fourth sub-shell 142 connected along the first direction A. The first sub-shell 131 is fastened to the third sub-shell 141 to form a first cavity 11, and the second sub-shell 132 is fastened to the fourth sub-shell 142 to form a second cavity 12.

[0059] Specifically, in one embodiment of this application, the first sub-shell 13 includes a first sub-shell 131 and a second sub-shell 132 connected along a first direction A, and the second sub-shell 14 includes a third sub-shell 141 and a fourth sub-shell 142 connected along the first direction A. By subdividing the housing 1 into multiple sub-shells, each sub-shell has a clearly defined mating surface, ensuring high-precision alignment of the motor 3 and the measuring component 2 during assembly, reducing positional deviations due to assembly errors, and thus improving the accuracy of measurement results. Furthermore, the independent connection points between the sub-shells help to evenly distribute the stress applied to the overall housing 1, avoiding local overload phenomena, preventing deformation or damage to the housing 1 during high-torque testing, and improving the overall structural stability. In addition, the design division of the first sub-shell 131, second sub-shell 132, third sub-shell 141, and fourth sub-shell 142 makes it easier for operators to identify and operate, avoiding the risk of misoperation and improving structural safety.

[0060] like Figure 5 As shown, in some embodiments, the first shell 13 is provided with a first fastener 133 at one end away from the hinged connection position with the second shell 14, and the second shell 14 is provided with a second fastener 143 matching the first fastener 133 at one end away from the hinged connection position. The first fastener 133 is used to engage with the second fastener 143.

[0061] Specifically, this application provides a first latching member 133 at one end of the first housing 13 away from the hinged connection position with the second housing 14, and a second latching member 143 matching the first latching member 133 at one end of the second housing 14 away from the hinged connection position. When the first housing 13 and the second housing 14 need to be fastened together for measurement, the first latching member 133 and the second latching member 143 are engaged to make the housings fit tightly together, so that the motor 3 and the measuring component 2 are stably housed in the first cavity 11 and the second cavity 12, avoiding shaking or displacement that would affect the stability of the measurement results. In some embodiments, the first latching member 133 may be a pin or dowel structure, and the second latching member 143 may have a hole or slot with an adapted design, so as to achieve locking by inserting the pin or dowel structure into the hole or slot; the first latching member 133 may also have an elastic tongue, and the second latching member 143 may be provided with a corresponding slot or protrusion, so as to achieve locking by inserting the elastic tongue into the slot or passing over the protrusion through its elastic restoring force; the first latching member 133 and the second latching member 143 may also be magnetic structures, so as to achieve locking and docking between the two by magnetic force; the specific structural settings of the first latching member 133 and the second latching member 143 in this application are not limited to the above, as long as they can be engaged during the process of the first shell 13 being fastened to the second shell 14 to ensure the stable connection of the structure.

[0062] like Figure 1 , Figure 4 and Figure 5 As shown, in some embodiments, the outer edge of the housing 1 is provided with a snap-fit ​​structure 15.

[0063] Specifically, in order to facilitate the quick and stable installation of the torque measuring mechanism in the guide rail, slide rail, or groove provided by the torque measuring device, and to adapt to different measurement scenarios, this application provides a snap-fit ​​structure 15 protruding from the outer edge of the housing 1. The snap-fit ​​structure 15 can be adapted and connected to the aforementioned guide rail, slide rail, or groove. The snap-fit ​​structure 15 allows the operator to complete the installation or disassembly of the housing 1 through a simple push-pull action. The snap-fit ​​structure 15 can be a quick-release fastener such as a quick-release latch or a quick-install locking mechanism, etc., and is not limited to any specific type. Moreover, the specific structural form and size can be adapted to the guide rail, slide rail, or groove provided by the torque measuring device to meet different measurement needs.

[0064] Example 2

[0065] A second aspect of this application provides a torque measuring device, comprising: a support and a torque measuring mechanism; the torque measuring mechanism is slidably connected to the support, wherein the torque measuring mechanism includes: a housing 1 and a measuring component 2; the housing 1 includes a first cavity 11 and a second cavity 12 coaxial and connected along a first direction A, the first cavity 11 being used to at least partially accommodate a motor 3; the measuring component 2 is used to measure the stall torque of the motor 3 and is at least partially engaged in the second cavity 12, and one end of the measuring component 2 facing the first cavity 11 is used for detachable connection with the motor 3.

[0066] For a specific embodiment of the torque measuring mechanism, please refer to Embodiment 1, which will not be repeated here.

[0067] The torque measuring device provided in this application includes a support unit, which can be of various structures such as platform type, frame type, guide rail type or cantilever type, and is equipped with structures such as guide rails, slides or grooves to provide operators with a flexible and multifunctional measurement operation space. The torque measuring mechanism of this application is slidably connected to the support unit, so that operators can apply the torque measuring mechanism to various application scenarios such as changing the measured object, measuring data of multiple measured objects in groups, or measuring from multiple angles. The torque measuring mechanism can be equipped with structures such as quick-release fasteners with quick-installation latches or quick-install locking mechanisms, which cooperate with the guide rails, slides or grooves on the support unit to flexibly disassemble or replace it from the support unit, thereby improving the maintainability and scalability of the torque measuring device and improving testing efficiency.

[0068] A second aspect of this application provides a torque measuring device, comprising: a support and a torque measuring mechanism; the torque measuring mechanism is slidably connected to the support, wherein the torque measuring mechanism includes: a housing 1 and a measuring component 2; the housing 1 includes a first cavity 11 and a second cavity 12 coaxial and connected along a first direction A, the first cavity 11 being used to at least partially accommodate a motor 3; the measuring component 2 is used to measure the stall torque of the motor 3 and is at least partially engaged within the second cavity 12, the end of the measuring component 2 facing the first cavity 11 being used for detachable connection with the motor 3. The torque measuring mechanism provided by this application accommodates the motor 3 and the measuring component 2, respectively, through the first cavity 11 and the second cavity 12 of the housing 1, allowing the measuring component 2 and the motor 3 to be directly and rigidly connected. It can measure the stall torque value at the instant the motor 3 starts, avoiding the lag of indirect measurement, improving the accuracy of the measurement results, and helping to accurately analyze the performance of the motor 3.

[0069] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0070] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A torque measuring mechanism characterized by, include: A housing, the housing comprising a first cavity and a second cavity coaxial and communicating along a first direction, the first cavity being used to at least partially accommodate a motor; A measuring component for measuring the stall torque of a motor and at least partially engaged within the second cavity, wherein one end of the measuring component facing the first cavity is detachably connected to the motor.

2. The torque measuring mechanism according to claim 1, characterized in that, The measuring component includes a transmission component, a stop component, and a measuring component. The transmission component is at least partially inserted through the second cavity. The first end of the transmission component facing the first cavity is used for detachable connection with a motor to transmit the stall torque of the motor. The second end of the transmission component away from the first cavity is fixedly connected to the measuring component capable of measuring the stall torque. The stop component is sleeved and fixed to the transmission component and engaged in the second cavity.

3. The torque measuring mechanism according to claim 2, characterized in that, The first end of the transmission component has multiple mounting holes, which are arranged in a circumferential array for detachable connection with the motor's mounting parts.

4. The torque measuring mechanism according to claim 2, characterized in that, The second cavity has a regular hexagonal inner edge in its cross-section in the second direction, which is perpendicular to the first direction. The first cavity has a circular inner edge in the cross section in the second direction, and the circular inner edge is used to match the outer edge of the motor; The outer edge of the stop is a regular hexagon.

5. The torque measuring mechanism according to claim 4, characterized in that, The first cavity has an opening on its side wall away from the second cavity, and the opening forms a skirt on the side wall. The skirt protrudes from the inner edge of the circle toward the axis of the motor.

6. The torque measuring mechanism according to claim 1, characterized in that, The housing includes a hinged first and second sub-shells; The first shell is fastened to the second shell to form the first cavity and the second cavity.

7. The torque measuring mechanism according to claim 6, characterized in that, The first sub-shell includes a first sub-shell and a second sub-shell connected along the first direction, and the second sub-shell includes a third sub-shell and a fourth sub-shell connected along the first direction. The first sub-shell is fastened to the third sub-shell to form the first cavity, and the second sub-shell is fastened to the fourth sub-shell to form the second cavity.

8. The torque measuring mechanism according to claim 6, characterized in that, The first shell is provided with a first fastener at one end away from the hinged connection position with the second shell, and the second shell is provided with a second fastener at one end away from the hinged connection position, which matches the first fastener. The first fastener is used to engage with the second fastener.

9. The torque measuring mechanism according to claim 1, characterized in that, The outer edge of the housing is provided with a snap-fit ​​structure.

10. A torque measuring device characterized by, include: Support section; A torque measuring mechanism is slidably connected to the support portion, wherein the torque measuring mechanism includes: A housing comprising a first cavity and a second cavity coaxial and in communication along a first direction, the first cavity for at least partially housing a motor; A measuring assembly for measuring a stall torque of the motor and at least partially engaged within the second cavity, the measuring assembly towards one end of the first cavity for detachable connection with the motor.

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