A speed reducer testing device

Abstract

A speed reducer testing device relates to the technical field of harmonic speed reducer installation testing, and comprises a mounting seat for fixing a speed reducer, a driving motor fixed on the mounting seat, a connecting piece comprising coaxially arranged first and second connecting parts, the first connecting part being fixedly connected with a motor shaft of the driving motor, the second connecting part being provided with a first insertion hole for inserting an input shaft of the speed reducer, a side wall of the second connecting part being provided with an elastic deformation structure, the elastic deformation structure comprising first and second deformation parts, end portions of the first and second deformation parts being oppositely and spacedly arranged, and a locking piece connected between the end portions of the first and second deformation parts and used for providing an acting force for making the first and second deformation parts close to each other to tightly hold the input shaft. The speed reducer is simple to install and dismount, and the testing efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of harmonic reducer installation and testing, and specifically to a reducer testing device. Background Technology

[0002] Harmonic reducers have an input shaft. The movement of the input shaft drives the relative movement of a rigid wheel and a flexible wheel, thus achieving speed reduction. Harmonic reducers sometimes exhibit problems such as excessive vibration and abnormal noise. Directly assembling them onto products necessitates replacing the reducer, which is inconvenient and reduces production efficiency. To address this issue, one approach is to use a fixture equipped with a drive motor. This allows for pre-installation testing of the reducer, preventing the installation of reducers with problems such as excessive vibration and abnormal noise onto products. However, installing and removing the reducer from the fixture is difficult, further reducing testing efficiency. Utility Model Content

[0003] This application provides a speed reducer testing device, which can solve the problem of difficult installation and disassembly of speed reducers during testing.

[0004] According to one aspect of this application, one embodiment provides a speed reducer testing device, comprising:

[0005] Mounting bracket, used to fix the speed reducer;

[0006] The drive motor is fixed on the mounting base;

[0007] The connector includes a first connecting part and a second connecting part arranged coaxially. The first connecting part is fixedly connected to the motor shaft of the drive motor. The second connecting part is provided with a first insertion hole for the input shaft of the reducer to be inserted. The side wall of the second connecting part is provided with an elastic deformation structure. The elastic deformation structure includes a first deformation part and a second deformation part. The end of the first deformation part and the end of the second deformation part are opposite to each other and spaced apart.

[0008] And a locking member, connected between the end of the first deformable portion and the end of the second deformable portion, for providing a force that brings the first deformable portion and the second deformable portion closer together to hold the input shaft.

[0009] In one embodiment, the elastic deformation structure includes a first groove extending axially along the first socket and a second groove extending circumferentially along the first socket, with one end of the first groove penetrating into the first socket and the other end penetrating into the middle of the second groove to form a through structure.

[0010] In one embodiment, the sidewall of the second connecting portion is provided with two sets of symmetrically distributed elastic deformation structures, each set of elastic deformation structures including the first deformation portion and the second deformation portion.

[0011] In one embodiment, the width of both the first deformable portion and the second deformable portion in the axial direction is greater than 2 / 3 of the axial length of the first insertion hole.

[0012] In one embodiment, the end of the first deformable part is provided with a mounting hole, the end of the second deformable part is provided with a first threaded hole, and the locking member includes a first screw, which passes through the mounting hole and is threadedly connected to the first threaded hole.

[0013] In one embodiment, the first connecting part is provided with a second socket that communicates with the first socket, and the output end of the motor shaft is inserted into the second socket and the connecting part is circumferentially limited by a key.

[0014] In one embodiment, the diameter of the second socket is smaller than the diameter of the first socket to form a step between the first socket and the second socket. A washer is provided on the step, and a second screw is installed on the output end of the motor shaft. The second screw passes through the washer and connects to a second threaded hole at the end of the motor shaft.

[0015] In one embodiment, the connector is a circular sleeve, and the outer diameter of the first connector is smaller than the outer diameter of the second connector.

[0016] In one embodiment, a first mounting portion and a second mounting portion are respectively provided on opposite sides of the mounting base. The first mounting portion is provided with a first through hole and is fixedly connected to the drive motor.

[0017] The second mounting part is provided with a second through hole, and the second mounting part is used to be fixedly connected to the reducer; the first through hole, the second through hole, the motor shaft, and the first insertion hole are arranged coaxially.

[0018] In one embodiment, the second mounting part is located above the first mounting part, and the lower side of the first mounting part is provided with a support foot. The mounting base also includes a first support part and a second support part. The first support part is located on one side of the mounting base, and the upper and lower ends of the first support part are respectively connected to the second mounting part and the first mounting part. The second support part is located on the other side of the mounting base, and the upper and lower ends of the second support part are respectively connected to the second mounting part and the first mounting part.

[0019] According to the speed reducer testing device of the above embodiment, the drive motor is fixed on the mounting base. The connecting part includes a first connecting part and a second connecting part. The first connecting part is fixedly connected to the motor shaft of the drive motor, and the second connecting part is provided with a first insertion hole for the input shaft of the speed reducer to be inserted. During installation, the input shaft of the speed reducer is inserted into the first insertion hole of the connecting part, and the locking member provides a force that brings the first deformable part and the second deformable part closer together, thus clamping and fixing the input shaft inserted in the first insertion hole. During disassembly, the locking member is adjusted to reduce or eliminate the force that brings the first deformable part and the second deformable part closer together, thereby releasing the clamping lock, and then the speed reducer can be removed. The installation and disassembly of the speed reducer are simple, which helps to improve testing efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a speed reducer testing device according to one embodiment;

[0021] Figure 2 As one embodiment Figure 1 Enlarged view of A in the image;

[0022] Figure 3 This is a schematic diagram of the structure of a mounting base according to one embodiment;

[0023] Figure 4 This is a schematic diagram of the structure of a connector according to one embodiment;

[0024] Explanation of reference numerals in the attached figures:

[0025] Mounting base, 101-first mounting part, 102-second mounting part, 103-support foot, 104-first through hole, 105-third threaded hole, 106-second through hole, 107-fourth threaded hole, 108-first support part, 109-second support part;

[0026] Drive motor, 201 - motor shaft;

[0027] Connector, 301-first insertion hole, 302-second insertion hole, 303-step, 304-first connecting part, 305-second connecting part, 306-first groove, 307-second groove, 308-mounting hole, 309-first deformable part, 310-second deformable part;

[0028] 5 - First screw; 6 - Second screw;

[0029] Gearbox, 701 - Input Shaft;

[0030] 8-bond. Detailed Implementation

[0031] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0032] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0033] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0034] In related technologies, harmonic reducers sometimes exhibit problems such as excessive vibration and abnormal noise. Directly assembling them on products necessitates the replacement of the reducer, which is inconvenient and reduces production efficiency. To address this issue, one approach is to use a fixture equipped with a drive motor to power the harmonic reducer. This allows for pre-installation testing of the reducer, preventing the assembly of reducers with issues like excessive vibration and abnormal noise onto products. However, the installation and removal of the harmonic reducer from the fixture is difficult, further reducing testing efficiency.

[0035] The connector in this application includes a first connecting part and a second connecting part. The first connecting part is fixedly connected to the motor shaft of the drive motor, and the second connecting part has a first insertion hole for inserting the input shaft of the reducer. During installation, the input shaft of the reducer is inserted into the first insertion hole of the connector, and a locking device provides a force that brings the first and second deformable parts closer together, thus clamping and fixing the input shaft inserted into the first insertion hole. During disassembly, adjusting the locking device reduces or eliminates the force that brings the first and second deformable parts closer together, thereby releasing the clamping lock, and then the reducer can be removed. The installation and disassembly of the reducer are simple, which helps to improve testing efficiency.

[0036] The following describes some embodiments of the speed reducer testing device provided in this application with reference to the accompanying drawings.

[0037] Please see Figures 1 to 4 This application provides a speed reducer testing device, including a mounting base 1, a drive motor 2, a connector 3, a locking member 4, and other functional components as needed, which are described in detail below.

[0038] In this embodiment, the mounting base 1 is used to fix the reducer 7; the drive motor 2 is fixed on the mounting base 1; the connecting member 3 includes a first connecting part 304 and a second connecting part 305 coaxially arranged. The first connecting part 304 is fixedly connected to the motor shaft 201 of the drive motor 2. The second connecting part 305 is provided with a first insertion hole 301 for the input shaft 701 of the reducer 7 to be inserted. The side wall of the second connecting part 305 is provided with an elastic deformation structure, which includes a first deformation part 309 and a second deformation part 310. The end of the first deformation part 309 and the end of the second deformation part 310 are opposite to each other and spaced apart. The locking member is connected between the end of the first deformation part 309 and the end of the second deformation part 310 to provide a force that brings the first deformation part 309 and the second deformation part 310 closer to each other, so as to hold the input shaft 701 tightly.

[0039] It is understood that in this embodiment, the mounting base 1 and the connector 3 can both be made of metal. The motor shaft 201 of the drive motor 2 is connected and fixed to the first connecting part 304 of the connector 3, and the second connecting part 305 of the connector 3 is used to connect and fix to the input shaft 701 of the reducer 7. Thus, the motor shaft 201 of the drive motor 2 can drive the input shaft 701 of the reducer 7 to rotate through the connector 3, that is, the drive motor 2 drives the reducer 7 to work. In this embodiment, the reducer 7 to be tested can be, but is not limited to, a harmonic reducer. In this embodiment, the first connecting part 304 and the second connecting part 305 of the connector 3 can be directly connected, or there can be other structures between the first connecting part 304 and the second connecting part 305. In some embodiments, the first connecting part 304 and the second connecting part 305 can be an integral structure. In this embodiment, the first insertion hole 301 and the motor shaft 201 can be arranged coaxially, that is, the central axis of the first insertion hole 301 coincides with the central axis of the motor shaft 201. In some embodiments, due to the influence of assembly accuracy, the central axis of the first insertion hole 301 and the central axis of the motor shaft 201 may also be slightly misaligned. The first insertion hole 301 is used for the input shaft 701 of the reducer 7 to be inserted. The shape of the first insertion hole 301 can match the shape of the input end of the input shaft 701. For example, the first insertion hole 301 can be a circular hole, and the diameter of the first insertion hole 301 can be adapted to the diameter of the input end of the input shaft 701. In some embodiments, the first deformable part 309 and the second deformable part 310 extend circumferentially along the first insertion hole 301, that is, the first deformable part 309 and the second deformable part 310 can both be arc-shaped. The first deformable part 309 and the second deformable part 310 extend towards each other. The distance between the extended ends provides space for deformation, and the first deformable part 309 and the second deformable part 310 have good radial deformation capability. The locking member 4 is connected between the end of the first deformable part 309 and the end of the second deformable part 310. When the distance between the two ends is reduced by the locking member 4, the first deformable part 309 and the second deformable part 310 are forced to move closer to each other. When the first deformable part 309 and the second deformable part 310 move closer to each other, they can form a radial tightening to hold the input shaft 701 of the reducer 7. After the holding is tightened, the synchronous rotation of the connecting member 3 and the input shaft 701 can be realized. When disassembling, the distance between the two ends is increased by the locking member 4, and the first deformable part 309 and the second deformable part 310 move away from each other. At this time, the holding on the input shaft 701 of the reducer 7 can be released. After release, the reducer 7 is removed and the input shaft 701 is moved out of the first insertion hole 301 to prepare for the testing of the next reducer 7. The installation and disassembly of the reducer 7 are simple.

[0040] In this embodiment, the drive motor 2 is fixed on the mounting base 1. The connector 3 includes a first connecting part 304 and a second connecting part 305. The first connecting part 304 is fixedly connected to the motor shaft 201 of the drive motor 2. The second connecting part 305 is provided with a first insertion hole 301 for the input shaft 701 of the reducer 7 to be inserted. During installation, the input shaft 701 of the reducer 7 is inserted into the first insertion hole 301 of the connector 3, and the locking member 4 provides a force that brings the first deformable part 309 and the second deformable part 310 closer together, thus clamping and fixing the input shaft 701 inserted in the first insertion hole 301. During disassembly, the locking member 4 is adjusted to reduce or eliminate the force that brings the first deformable part 309 and the second deformable part 310 closer together, thereby releasing the clamping lock, and then the reducer 7 can be removed. The installation and disassembly of the reducer 7 are simple, which is beneficial to improving testing efficiency.

[0041] In one embodiment, such as Figure 4As shown, the elastic deformation structure includes a first groove 306 extending axially along the first insertion hole 301 and a second groove 307 extending circumferentially along the first insertion hole 301. One end of the first groove 306 penetrates into the first insertion hole 301, and the other end of the first groove 306 penetrates into the middle of the second groove 307 to form a through structure. In this embodiment, one end of the first groove 306 can penetrate into the opening of the first insertion hole 301. At this time, the first deformable part 309 and the second deformable part 310 are located between the opening of the first insertion hole 301 and the second groove 307. The width of the first groove 306 is the size of the distance between the end of the first deformable part 309 and the end of the second deformable part 310. The first groove 306 provides space for the deformation of the first deformable part 309 and the second deformable part 310. The second groove 307 cuts the first deformable part 309 and the second deformable part 310 from other parts of the sidewall, so that the first deformable part 309 and the second deformable part 310 have good radial deformation capability. The other end of the first groove 306 extends to the middle of the second groove 307, forming a T-shaped groove on the side wall of the second connecting part 305. In this embodiment, the width of the second groove 307 is not specifically limited; it can simply separate the first deformed part 309 and the second deformed part 310 from other parts of the side wall. In some embodiments, the first groove 306 and the second groove 307 can be formed by cutting. During processing, the first groove 306 is formed by cutting the side wall of the second connecting part 305 along the axial direction of the first insertion hole 301, and the second groove 307 is formed by cutting the side wall of the second connecting part 305 along the circumferential direction of the first insertion hole 301. After the first groove 306 and the second groove 307 are processed, the first deformed part 309 and the second deformed part 310, which extend circumferentially from the first insertion hole 301 on the side wall of the second connecting part 305, are formed. The processing of the first deformed part 309 and the second deformed part 310 is simple and quick. In some embodiments, the first deformed portion 309 and the second deformed portion 310 can also be manufactured in other ways. For example, an annular member can be connected and fixed to the second connecting portion 305 by means of connection. The annular member has a notch, and the two sides of the notch are the first deformed portion 309 and the second deformed portion 310.

[0042] In one embodiment, the sidewall of the second connecting portion 305 is provided with two sets of symmetrically distributed elastic deformation structures, each set of elastic deformation structures including a first deformation portion 309 and a second deformation portion 310. In each set of elastic deformation structures, the end of the first deformation portion 309 and the end of the second deformation portion 310 are opposite to each other and spaced apart. During assembly, the deformation portions on both sides are radially tightened, at which time the positioning accuracy of the second connecting portion 305 on the motor shaft 201 is better. During manufacturing, both sets of deformation portions can be formed by machining the first groove 306 and the second groove 307 to form the first deformation portion 309 and the second deformation portion 310. In some embodiments, when there are two sets of deformation portions, the first deformation portion 309 and the second deformation portion 310 on both sides can be symmetrically arranged, in which case the second groove 307 on one side and the second groove 307 on the other side are located in the same axial position. In some application scenarios, the dimensions of the first deformable portion 309 and the second deformable portion 310 on both sides may be different. For example, the second groove 307 on one side and the second groove 307 on the other side may be axially misaligned. In this case, the width of the deformable portion on one side is smaller than the width of the deformable portion on the other side. In this embodiment, the first deformable portion 309 and the second deformable portion 310 may also be provided only on one side of the sidewall of the second connecting portion 305. The input shaft 701 of the reducer 7 can also be clamped and fixed by a set of first deformable portions 309 and second deformable portions 310.

[0043] In one embodiment, the axial widths of both the first deformable portion 309 and the second deformable portion 310 are greater than 2 / 3 of the axial length of the first insertion hole 301. Sufficiently wide widths of the first deformable portion 309 and the second deformable portion 310 improve the positioning accuracy of the second connecting portion 305 for the input shaft 701 of the reducer 7, and improve the coaxiality between the motor shaft 201 and the input shaft 701. In some embodiments, the axial widths of the first deformable portion 309 and the second deformable portion 310 of the first insertion hole 301 may be less than or equal to 2 / 3 of the axial length of the first insertion hole 301, as needed.

[0044] In one embodiment, the end of the first deformable portion 309 is provided with a mounting hole 308, and the end of the second deformable portion 310 is provided with a first threaded hole. The locking member 4 includes a first screw, which passes through the mounting hole 308 and is threadedly connected to the first threaded hole. The axes of the mounting hole 308 and the first threaded hole are both perpendicular to the axis of the first insertion hole 301. At this time, the direction of the force provided by the first screw that brings the first deformable portion 309 and the second deformable portion 310 closer to each other is also perpendicular or approximately perpendicular to the axis of the first insertion hole 301. This allows the first deformable portion 309 and the second deformable portion 310 to form a circumferential tightening, resulting in better deformation of the first deformable portion 309 and the second deformable portion 310. Tightening the first screw reduces the distance between the two ends, forcing the first deformable part 309 and the second deformable part 310 closer together to grip the input shaft 701 of the reducer 7. Loosening the first screw increases the distance between the two ends, gradually reducing the tension of the first screw, which may even become a thrust. The first deformable part 309 and the second deformable part 310 move away from each other, thus releasing the grip on the input shaft 701 of the reducer 7. In some embodiments, mounting holes may be provided at the ends of the first deformable part 309 and the second deformable part 310. After the first screw passes through the mounting holes at both ends, it is locked in place by a nut. In this case, the ends of the first deformable part 309 and the second deformable part 310 can still be connected by the first screw.

[0045] In one embodiment, such as Figure 1 , Figure 2 As shown, the first connecting part 304 is provided with a second insertion hole 302 that communicates with the first insertion hole 301. The output end of the motor shaft 201 is inserted into the second insertion hole 302 and is circumferentially limited by the key 8 to the connecting member 3. In this embodiment, the second insertion hole 302 can be coaxially arranged with the first insertion hole 301. The connecting member 3 and the motor shaft 201 are circumferentially limited by the key 8, which improves the power transmission between the connecting member 3 and the motor shaft 201. The axial limitation by the second screw 5 helps to prevent axial movement of the connecting member 3. In this embodiment, the diameter of the second insertion hole 302 can be adapted to the diameter of the output end of the motor shaft 201. The coaxial arrangement of the second insertion hole 302 and the first insertion hole 301 helps to improve the coaxiality between the motor shaft 201 and the input shaft 701, thereby improving the power transmission efficiency. In some embodiments, a through groove penetrating both ends of the second socket 302 can be provided on the wall of the second socket 302, and a keyway can be provided on the outer side wall of the output end of the motor shaft 201. The key 8 is assembled in the keyway and protrudes from the keyway. During the process of inserting the motor shaft 201 into the second socket 302, the key 8 is also inserted into the through groove. After it is in place, part of the key 8 is located in the through groove and part is located in the keyway, thereby forming a circumferential limit. In some embodiments, the first connecting part 304 can also fix the motor shaft 201 in the second socket 302 by other means, such as bonding, interference fit, etc.

[0046] In one embodiment, the diameter of the second socket 302 is smaller than the diameter of the first socket 301, forming a step 303 between the first socket 301 and the second socket 302. A washer 6 is provided on the step 303. A second screw 5 is installed on the output end of the motor shaft 201. The second screw 5 passes through the washer and connects to the second threaded hole at the end of the motor shaft 201. This axially limits the connection member 3, and the assembly of the second screw 5 is simple and quick. In this embodiment, the second threaded hole can be located at the center of the motor shaft 201. In this case, after the connection member 3 is fixed to the motor shaft 201 by the second screw 5, the second screw 5 is also located at the center of the motor shaft 201, which helps to improve the rotational balance of the overall structure. The washer 6 is placed between the second screw 5 and the connection member 3. Through the friction of the washer 6, the stability of the connection between the connection member 3 and the motor shaft 301 is improved. In some embodiments, the motor shaft 201 may be provided with a radially extending threaded hole, the first connecting part 304 may be provided with a radially penetrating through hole, and the second screw 5 may pass through the through hole of the first connecting part 304 and cooperate with the radially extending threaded hole to fix the connector 3 on the motor shaft 201.

[0047] In one embodiment, the connector 3 is a circular sleeve, and the outer diameter of the first connecting portion 304 is smaller than the outer diameter of the second connecting portion 305. The circular sleeve improves rotational balance. The diameter of the second insertion hole 302 is smaller than the diameter of the first insertion hole 301, and the outer diameter of the first connecting portion 304 is smaller than the outer diameter of the second connecting portion 305, thereby reducing the wall thickness of the first connecting portion 304 and saving material. In some embodiments, the connector 3 may also be cylindrical, meaning the outer diameter of the first connecting portion 304 may be equal to the outer diameter of the second connecting portion 305. In some embodiments, the connector 3 may also be a rectangular sleeve.

[0048] In one embodiment, such as Figure 3As shown, the mounting base 1 has a first mounting part 101 and a second mounting part 102 on opposite sides. The first mounting part 101 has a first through hole 104 and is fixedly connected to the drive motor 2. The second mounting part 102 has a second through hole 106 and is used to fixally connect to the reducer 7. The first through hole 104, the second through hole 106, the motor shaft 201, and the first insertion hole 301 are arranged coaxially. In some embodiments, the outer periphery of the first through hole 104 has at least two third threaded holes 105. The drive motor 2 is fixed to the first mounting part 101 by screws engaging with the third threaded holes 105. The motor shaft 201 of the drive motor 2 passes through the first through hole 104 and is connected and fixed to the first connecting part 304. The outer periphery of the second through hole 106 has at least two fourth threaded holes 107. The second mounting part 102 is used to fix the reducer 7 by screws engaging with the fourth threaded holes 107. The second through hole 106 is used for the input shaft 701 of the reducer 7 to pass through. The first through hole 104, the second through hole 106, the motor shaft 201, and the first insertion hole 301 are arranged coaxially, meaning that the central axes of the first through hole 104, the second through hole 106, the motor shaft 201, and the first insertion hole 301 coincide. In some embodiments, due to the influence of assembly precision, the central axes of the first through hole 104, the second through hole 106, the motor shaft 201, and the first insertion hole 301 may also have a certain degree of misalignment. The drive motor 2 is fixed at the first through hole 104, and the reducer 7 is fixed at the second through hole 106, which facilitates the coaxial arrangement of the motor shaft 201 and the input shaft 701.

[0049] In one embodiment, the second mounting portion 102 is located above the first mounting portion 101. A support foot 103 is provided on the lower side of the first mounting portion 101. The mounting base 1 also includes a first support portion 108 and a second support portion 109. The first support portion 108 is located on one side of the mounting base 1, and its upper and lower ends are respectively connected to the second mounting portion 102 and the first mounting portion 101. The second support portion 109 is located on the other side of the mounting base 1, and its upper and lower ends are respectively connected to the second mounting portion 102 and the first mounting portion 101. In this embodiment, the second mounting portion 102 is located above the first mounting portion 101, thereby allowing the drive motor 2 and the reducer 7 to be arranged vertically. This vertical arrangement is more conducive to improving the rotational balance and the accuracy of the test. In this embodiment, the height of the support foot 103 can be greater than the axial length of the drive motor 2. With the first support portion 108 and the second support portion 109 respectively provided on both sides, the resulting mounting base 1 has higher structural stability, is less prone to shaking, and also helps to improve the accuracy of the test. In some embodiments, the first support portion 108, the first mounting portion 101, the second support portion 109, and the second mounting portion 102 can be enclosed to form a rectangular frame structure. In some embodiments, the second mounting portion 102 and the first mounting portion 101 can also be arranged laterally.

[0050] The speed reducer testing device provided in the above embodiment has a drive motor 2 fixed on a mounting base 1. The connecting member 3 includes a first connecting part 304 and a second connecting part 305. The first connecting part 304 is fixedly connected to the motor shaft 201 of the drive motor 2. The second connecting part 305 has a first insertion hole 301 for inserting the input shaft 701 of the speed reducer 7. During installation, the input shaft 701 of the speed reducer 7 is inserted into the first insertion hole 301 of the connecting member 3, and the locking member 4 provides a force that brings the first deformable part 309 and the second deformable part 310 closer together, thus securing the input shaft 701 inserted in the first insertion hole 301. During disassembly, adjusting the locking member 4 reduces or eliminates the force that brings the first deformable part 309 and the second deformable part 310 closer together, thereby releasing the locking mechanism and allowing the speed reducer 7 to be removed. The installation and disassembly of the speed reducer 7 are simple, which helps improve testing efficiency.

[0051] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A speed reducer testing device, characterized in that, include: Mounting bracket, used to fix the speed reducer; The drive motor is fixed on the mounting base; The connector includes a first connecting part and a second connecting part arranged coaxially. The first connecting part is fixedly connected to the motor shaft of the drive motor. The second connecting part is provided with a first insertion hole for the input shaft of the reducer to be inserted. The side wall of the second connecting part is provided with an elastic deformation structure. The elastic deformation structure includes a first deformation part and a second deformation part. The end of the first deformation part and the end of the second deformation part are opposite to each other and spaced apart. And a locking member, connected between the end of the first deformable portion and the end of the second deformable portion, for providing a force that brings the first deformable portion and the second deformable portion closer together to hold the input shaft.

2. The speed reducer testing device as described in claim 1, characterized in that, The elastic deformation structure includes a first groove extending axially along the first socket and a second groove extending circumferentially along the first socket. One end of the first groove passes through the first socket, and the other end passes through the middle of the second groove to form a through structure.

3. The speed reducer testing device as described in claim 1, characterized in that, The sidewall of the second connecting part is provided with two sets of symmetrically distributed elastic deformation structures, each set of elastic deformation structures including the first deformation part and the second deformation part.

4. The speed reducer testing device as described in claim 1, characterized in that, The width of both the first deformed portion and the second deformed portion in the axial direction is greater than 2 / 3 of the axial length of the first insertion hole.

5. The speed reducer testing device as described in claim 1, characterized in that, The first deformable part has a mounting hole at its end, the second deformable part has a first threaded hole at its end, and the locking member includes a first screw, which passes through the mounting hole and is threadedly connected to the first threaded hole.

6. The speed reducer testing device as described in claim 1, characterized in that, The first connecting part is provided with a second insertion hole that communicates with the first insertion hole. The output end of the motor shaft is inserted into the second insertion hole and the connecting part is circumferentially limited by a key.

7. The speed reducer testing device as described in claim 6, characterized in that, The diameter of the second socket is smaller than that of the first socket, so as to form a step between the first socket and the second socket. A washer is provided on the step. A second screw is installed on the output end of the motor shaft. The second screw passes through the washer and connects to the second threaded hole at the end of the motor shaft.

8. The speed reducer testing device as described in claim 7, characterized in that, The connector is a circular sleeve, and the outer diameter of the first connector is smaller than the outer diameter of the second connector.

9. The speed reducer testing device as described in claim 1, characterized in that, The mounting base has a first mounting part and a second mounting part on opposite sides, the first mounting part has a first through hole and is fixedly connected to the drive motor; The second mounting part is provided with a second through hole, and the second mounting part is used to be fixedly connected to the reducer; the first through hole, the second through hole, the motor shaft, and the first insertion hole are arranged coaxially.

10. The speed reducer testing device as described in claim 9, characterized in that, The second mounting part is located above the first mounting part, and the lower side of the first mounting part is provided with a support foot. The mounting base also includes a first support part and a second support part. The first support part is located on one side of the mounting base, and the upper and lower ends of the first support part are respectively connected to the second mounting part and the first mounting part. The second support part is located on the other side of the mounting base, and the upper and lower ends of the second support part are respectively connected to the second mounting part and the first mounting part.

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