Reduction gear gap measuring device and method

Abstract

The application discloses a kind of reducer gap measuring device and method.Therein, the device includes: workbench, for placing reducer;Fixed component, for fixing reducer on workbench by various fixing methods, wherein different fixing methods are used to fix different expansion sleeve clamps with workbench;Multiple expansion sleeve clamps are respectively connected with spline on input end and spline on output end of reducer;Torque sleeve is installed on the expansion sleeve clamp connected with spline on input end, for torque operation on input end;Multiple measuring devices are respectively placed on multiple expansion sleeve clamps, for measuring the rotation angle of input end and output end under different fixing methods.The application solves the technical problem of large measurement error in related art for measuring the gap of reducer.

Description

Gearbox Clearance Measurement Device and Method Technical Field

[0001] This invention relates to the field of automotive component measurement, and more specifically, to a device and method for measuring reducer clearance. Background Technology

[0002] With the development of the automotive industry, people have increasingly higher demands for vehicle performance while also hoping for lower energy consumption. Based on the demand for new energy sources, electric vehicles are gradually becoming the main development direction of the future automotive industry. However, due to the "underdamped" dynamic characteristics of electric vehicles, easily perceptible abnormal noises (clunks) are prone to occur during the transient transition between positive and negative torque. This noise is believed to originate from speed oscillations caused by transient impacts, which in turn cause vehicle vibration. It is generally believed that ensuring reasonable reducer clearance can avoid this noise characteristic.

[0003] However, in the existing technology for measuring the assembly clearance, the test bench occupies a large area and requires professional workers to install it, which leads to inconvenience in operation and inaccurate installation, resulting in inaccurate measurement of the reducer assembly clearance and causing a large error in the reducer clearance.

[0004] There is currently no effective solution to the above problems. Summary of the Invention

[0005] This invention provides a reducer clearance measuring device and method to at least solve the technical problem of large measurement error in reducer clearance measurement in related technologies.

[0006] According to one aspect of the present invention, a reducer clearance measuring device is provided, comprising: a worktable for placing a reducer; a fixing component for fixing the reducer to the worktable by a variety of fixing methods, wherein different fixing methods are used to fix different expansion sleeve clamps to the worktable; a plurality of expansion sleeve clamps respectively connected to the spline at the input end and the spline at the output end of the reducer; a torque sleeve mounted on the expansion sleeve clamp connected to the spline at the input end for applying torque to the input end; and a plurality of measuring devices respectively placed on the plurality of expansion sleeve clamps for measuring the rotation angle of the input end and the output end under different fixing methods.

[0007] Optionally, each expansion sleeve clamp includes: a sleeve for holding the measuring device; an expansion sleeve fixed to one end of the sleeve for connecting with the spline at the input end and the spline at the output end; and a fastener fixed to the other end of the sleeve for mounting the torque sleeve.

[0008] Optionally, the fastener includes: a screw, fixed to the other end of the sleeve; and a nut, threadedly connected to the screw.

[0009] Optionally, the fixing components include: a flange for fixing the reducer; and at least one fixing support for fixing the target expansion sleeve clamp corresponding to various fixing methods among the multiple expansion sleeve clamps to the worktable.

[0010] Optionally, at least one fixed support includes: a first fixed support for fixing the spline-connected expansion sleeve clamp at the input end to the worktable; and a second fixed support for fixing the spline-connected expansion sleeve clamp at the output end of the rear shell to the worktable.

[0011] Optionally, at least one fixed support includes: a second fixed support for fixing the spline-connected expansion sleeve clamp at the output end of the rear housing to the worktable; and a third fixed support for fixing the spline-connected expansion sleeve clamp at the output end of the front housing to the worktable.

[0012] Optionally, a slidable slot is provided at at least one position on the worktable corresponding to at least one fixed support, and at least one fixed support is fixed in the slot.

[0013] According to another aspect of the present invention, a method for measuring the clearance of a reducer is also provided, comprising: applying torque to the input end through a torque sleeve and obtaining the rotation angles of the input end and the output end under multiple fixed conditions output by multiple measuring devices; obtaining the clearance corresponding to each fixed condition based on the rotation angles of the input end and the output end under each fixed condition; and obtaining the target clearance of the reducer based on the clearances corresponding to multiple fixed conditions.

[0014] Optionally, applying torque to the input end using a torque sleeve and obtaining the rotation angles of the input and output ends under multiple fixed conditions from multiple measuring devices includes: applying torque to the input end in a first direction using a torque sleeve and obtaining the first rotation angles of the input and output ends under multiple fixed conditions; and applying torque to the input end in a second direction using a torque sleeve and obtaining the second rotation angles of the input and output ends under multiple fixed conditions.

[0015] Optionally, based on the rotation angles of the input and output terminals under each fixing method, the corresponding gap under each fixing method is obtained, including: determining the processing method corresponding to each fixing method; and adjusting the first and second rotation angles of the input and output terminals under each fixing method according to the processing method corresponding to each fixing method to obtain the corresponding gap under each fixing method.

[0016] Optionally, the target clearance of the reducer is obtained based on the clearances corresponding to various fixing methods, including: obtaining the difference between the clearances corresponding to various fixing methods to obtain the target clearance.

[0017] According to another aspect of the present invention, a processor is also provided, which is used to run a program, wherein the program executes the reducer clearance measurement method of any one of the above embodiments.

[0018] In this embodiment of the invention, the reducer clearance measuring device may include a worktable for placing the reducer; a fixing component for fixing the reducer to the worktable using various fixing methods, wherein different fixing methods are used to fix different expansion sleeve clamps to the worktable; multiple expansion sleeve clamps, respectively connected to the spline at the input end and the spline at the output end of the reducer; a torque sleeve, mounted on the expansion sleeve clamp connected to the spline at the input end, for applying torque to the input end; and multiple measuring devices, respectively placed on the multiple expansion sleeve clamps, for measuring the rotation angles at the input and output ends under different fixing methods. It is readily apparent that by fixing the expansion sleeve clamps to the worktable using different fixing methods with the fixing component, the purpose of flexibly installing the reducer measuring device is achieved. Furthermore, the multiple measuring devices placed on the multiple expansion sleeve clamps can flexibly measure the reducer clearance, achieving the goal of accurately measuring the reducer clearance. This achieves the technical effect of improving the measurement error of the reducer clearance, thereby solving the technical problem of large measurement errors in reducer clearance measurement in related technologies. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 is a schematic diagram of a speed reducer clearance measuring device according to an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of an optional rear shell output terminal fixed according to an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the fixing of an optional front shell output end according to an embodiment of the present invention;

[0023] Figure 4 is a schematic diagram of an optional expansion sleeve clamp according to an embodiment of the present invention;

[0024] Figure 5 is a flowchart of a method for measuring the clearance of a reducer according to an embodiment of the present invention. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] Example 1

[0028] According to one aspect of the present invention, a speed reducer clearance measuring device is provided.

[0029] Figure 1 is a schematic diagram of a reducer clearance measuring device according to an embodiment of the present invention. As shown in Figure 1, the reducer clearance measuring device includes the following parts: a worktable 10, a fixing component 12, multiple expansion sleeve clamps 14, a torque sleeve 16, and multiple measuring devices 18.

[0030] The workbench 10 is used to place the reducer 110; the fixing component 12 is used to fix the reducer 110 to the workbench in various ways, wherein different fixing methods are used to fix different expansion sleeve clamps 14 to the workbench 10; multiple expansion sleeve clamps 14 are respectively connected to the spline at the input end and the spline at the output end of the reducer; the torque sleeve 16 is installed on the expansion sleeve clamp 14 connected to the spline at the input end, and is used to apply torque to the input end; multiple measuring devices 18 are respectively placed on multiple expansion sleeve clamps 14, and are used to measure the rotation angle of the input end and the output end under different fixing methods.

[0031] It should be noted that the multiple fixing methods include: First fixing method: fixing the expansion sleeve clamp connected to the spline of the input end and the expansion sleeve clamp connected to the spline of the output end of the rear shell to the worktable by fixing the support column respectively; Second fixing method: fixing the expansion sleeve clamp connected to the spline of the output end of the rear shell and the expansion sleeve clamp connected to the spline of the output end of the front shell to the worktable by fixing the support column.

[0032] Optionally, as shown in FIG1, the fixing component 12 includes: a flange 121 for fixing the reducer 110; and at least one fixing support 122 for fixing the target expansion clamp 14 corresponding to various fixing methods among the multiple expansion clamps 14 to the worktable 10.

[0033] Optionally, FIG2 is a schematic diagram of an optional rear housing output end fixing according to an embodiment of the present invention. As shown in FIG1 and FIG2, when the reducer is fixed using the first fixing method, at least one fixing support 122 includes: a first fixing support 122-1 for fixing the spline-connected expansion sleeve clamp 143 of the input end to the worktable 10; and a second fixing support 122-2 for fixing the spline-connected expansion sleeve clamp 142 of the rear housing output end to the worktable 10. Multiple measuring devices 18 include: a measuring device 181 placed on the expansion sleeve clamp 141 for measuring the rotation angle of the reducer 110 output end; a measuring device 182 placed on the expansion sleeve clamp 142 for measuring the rotation angle of the reducer 110 rear housing output end; and a measuring device 183 placed on the expansion sleeve clamp 143 for measuring the rotation angle of the reducer 110 front housing output end.

[0034] In an alternative embodiment, as shown in Figures 1 and 2, in response to the reducer 110 being fixed on the workbench 10 via flange 121, first fixed support 122-1 and second fixed support 122-2, the rotation angles of the input end, rear housing output end and front housing output end of the reducer 110 can be measured by first measuring device 181, second measuring device 182 and third measuring device 183, respectively. The first fixed support column 122-1 is used to fix the expansion sleeve clamp 141, which is splined to the input end of the reducer 110, on the worktable. The second fixed support column 122-2 is used to fix the expansion sleeve clamp 142, which is splined to the output end of the rear housing of the reducer 110, on the worktable. The expansion sleeve clamp 141 is splined to the input end of the reducer 110, the expansion sleeve clamp 142 is splined to the output end of the rear housing of the reducer 110, and the expansion sleeve clamp 143 is splined to the output end of the front housing of the reducer 110. The first measuring device 181 is placed on the expansion sleeve clamp 141, the second measuring device 182 is placed on the expansion sleeve clamp 142, and the third measuring device 183 is placed on the expansion sleeve clamp 143.

[0035] Optionally, FIG3 is a schematic diagram of an optional front housing output end fixing according to an embodiment of the present invention. As shown in FIG2 and FIG3, when the reducer is fixed using the second fixing method, at least one fixing support further includes: a second fixing support 122-2 for fixing the spline-connected expansion sleeve clamp 142 of the rear housing output end to the worktable 10; and a third fixing support 122-3 for fixing the spline-connected expansion sleeve clamp 143 of the front housing output end to the worktable 10. Multiple measuring devices 18 include: a first measuring device 181 placed on the expansion sleeve clamp 141 for measuring the rotation angle of the reducer 110 output end; a second measuring device 182 placed on the expansion sleeve clamp 142 for measuring the rotation angle of the reducer 110 rear housing output end; and a third measuring device 183 placed on the expansion sleeve clamp 143 for measuring the rotation angle of the reducer 110 front housing output end.

[0036] In an alternative embodiment, as shown in Figures 2 and 3, in response to the reducer 110 being fixed on the workbench 10 by the flange 121, the second fixed support 122-2 and the third fixed support 122-3, the rotation angles of the input end, the rear housing output end and the front housing output end of the reducer 110 can be measured by the first measuring device 181, the second measuring device 182 and the third measuring device 183, respectively. The second fixed support column 122-2 is used to fix the expansion sleeve clamp 142, which is splined to the output end of the rear housing of the reducer 110, on the worktable. The third fixed support column 122-3 is used to fix the expansion sleeve clamp 143, which is splined to the output end of the front housing of the reducer 110, on the worktable. The expansion sleeve clamp 141 is splined to the input end of the reducer 110, the expansion sleeve clamp 142 is splined to the output end of the rear housing of the reducer 110, and the expansion sleeve clamp 143 is splined to the output end of the front housing of the reducer 110. The first measuring device 181 is placed on the expansion sleeve clamp 141, the second measuring device 182 is placed on the expansion sleeve clamp 142, and the third measuring device 183 is placed on the expansion sleeve clamp 143.

[0037] It should be noted that in this embodiment, it is not limited to fixing the reducer first in the first fixing method and then fixing it in the second fixing method. It is also possible to fix the reducer first in the second fixing method and then fix it in the first fixing method. The user can set the specific fixing method priority according to the actual measurement needs.

[0038] Optionally, multiple slidable slots are provided at various positions on the worktable corresponding to at least one fixed support, and at least one fixed support is fixed in each slot.

[0039] As shown in Figure 3, a sliding slot 30 is provided at at least one position on the workbench corresponding to at least one fixed support. At least one fixed support is fixed in the corresponding slot. By setting multiple sliding slots 30, the user can adjust the position of the fixed support according to the actual measurement needs, and then measure the rotation angle of multiple input ends, rear housing output end and front housing output end of the reducer based on multiple measuring devices with different fixed angles.

[0040] Optionally, FIG4 is a schematic diagram of an optional expansion sleeve clamp according to an embodiment of the present invention. As shown in FIG4, each expansion sleeve clamp 14 includes: a sleeve 14-1 for placing a measuring device; an expansion sleeve 14-2 fixed to one end of the sleeve 14-1 for connecting with the spline of the input end and the spline of the output end; and a fastener 14-3 fixed to the other end of the sleeve 14-1 for mounting the sleeve 14-1.

[0041] Optionally, as shown in Figure 4, the fastener 14-3 includes: a screw 14-3-1, fixed to the other end of the sleeve 14-1; and a nut 14-3-2, threadedly connected to the screw 14-3-1. It should be noted that, as shown in Figure 4, the screw 14-3-1 also includes a threaded hole, through which the corresponding fixing support can be connected to the expansion sleeve clamp, thereby fixing the expansion sleeve clamp to the worktable via the fixing support.

[0042] This invention designs a static clearance measurement workbench specifically for speed reducers and introduces its usage and measurement methods. Compared with existing solutions, this solution considers a certain degree of versatility in its design and eliminates the influence of spline clearance on the angular clearance results through the expansion sleeve tie rod assembly. This solution is easier to build a test bench, occupies less space, and can be measured by manual loading or automatic loading using a stepper motor, offering greater flexibility and versatility. In terms of measurement methods, by measuring the angular clearance at three points—the input end, the front housing output end, and the rear housing output end—the measurement data is corrected to ensure accuracy. By changing the position of the fixed support, the internal clearance of the differential assembly within the speed reducer assembly can be measured separately, allowing for further decomposition of the measurement results.

[0043] The reducer clearance measuring device in this solution includes two fixing methods:

[0044] The first fixing method is used to measure the clearance of the differential assembly. As shown in Figures 1 and 2, the reducer assembly is placed on the workbench using pads and fixed to the flange with bolts. Both the input and output ends are equipped with the expansion sleeve tie rod assembly shown in Figure 4, so that this fixture is interference-fitted with the spline on the reducer. An input end level, a front housing output end level, and a rear housing output end level are placed on the sleeve of the expansion sleeve tie rod assembly. The input end fixture and the rear housing output end fixture are fixed to the workbench via the input end fixing support and the rear housing output end fixing support, respectively.

[0045] The second fixing method is used to measure the clearance of the reducer assembly, as shown in Figures 2 and 3. The reducer assembly is placed on the workbench using pads and fixed to the flange with bolts. Both the input and output ends are equipped with the expansion sleeve tie rod assembly shown in Figure 4, so that this fixture is interference-fitted with the spline on the reducer. An input end level, a front housing output end level, and a rear housing output end level are placed on the sleeve of the expansion sleeve tie rod assembly. A torque sleeve is installed on the input end fixture, and the two output ends are fixed using the front housing output end fixing support and the rear housing output end fixing support, respectively. The fixing supports are all bolted to the workbench and fixture.

[0046] It should be noted that the fixing method of the expansion sleeve tie rod assembly used in this invention can be adapted to shafts and teeth of similar size in terms of versatility; the worktable is designed with a sliding slot, which can adjust the position of the support column as needed; the flange can be replaced according to different reducer assemblies to ensure stable installation.

[0047] The reducer clearance measuring device proposed in this invention has a workbench installation method that can simultaneously measure the reducer assembly clearance X and the differential assembly clearance Y, and can calculate the reducer gear clearance Z from these two values; the level is only a simple way of setting up the workbench provided in this solution, and can be replaced by angle sensors, magnetoelectric sensors, photoelectric sensors, etc.; the fixing of the support column and clamp is only a simple way of setting up the workbench, and can be replaced by welding, riveting, tenoning, etc.

[0048] Example 2

[0049] According to an embodiment of the present invention, an embodiment of a method for measuring reducer clearance is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0050] Figure 5 is a flowchart of a method for measuring reducer clearance according to an embodiment of the present invention. As shown in Figure 5, the method includes the following steps:

[0051] Step S502: Apply torque to the input end using a torque sleeve, and obtain the rotation angles of the input and output ends under multiple fixed conditions from multiple measuring devices.

[0052] Optionally, applying torque to the input end using a torque sleeve and obtaining the rotation angles of the input and output ends under multiple fixed conditions from multiple measuring devices includes: applying torque to the input end in a first direction using a torque sleeve and obtaining the first rotation angles of the input and output ends under multiple fixed conditions; and applying torque to the input end in a second direction using a torque sleeve and obtaining the second rotation angles of the input and output ends under multiple fixed conditions.

[0053] The first direction mentioned above can be to the right, and the second direction can be to the left, but it is not limited to these. It can also be that the first direction is to the left and the second direction is to the right. In this embodiment, we will use the example of the first direction being to the right and the second direction being to the left. The first angle mentioned above can be the angle between the input and output terminals measured by multiple measuring devices in the first direction, and the second angle mentioned above can be the angle between the input and output terminals measured by multiple measuring devices in the second direction.

[0054] In one alternative embodiment, under the first fixing method, torque can first be applied to the input end in the right direction using a torque sleeve. In response to the torque value reaching a first preset value, the first rotation angle α1 of the input end is measured by a first measuring device, the first rotation angle β1 of the rear shell output end is measured by a second measuring device, and the first rotation angle θ1 of the front shell output end is measured by a third measuring device.

[0055] In another alternative embodiment, under the first fixing method, the input end can first be subjected to torque in the left direction by a torque sleeve. In response to the torque value reaching the first preset value, the second rotation angle α2 of the input end is measured by the first measuring device, the second rotation angle β2 of the rear shell output end is measured by the second measuring device, and the second rotation angle θ2 of the front shell output end is measured by the third measuring device.

[0056] In another alternative embodiment, under the second fixing method, the input end can first be subjected to torque in the right direction by a torque sleeve. In response to the torque value reaching the second preset value, the first rotation angle α1 of the input end is measured by the first measuring device, the first rotation angle β1 of the rear shell output end is measured by the second measuring device, and the first rotation angle θ1 of the front shell output end is measured by the third measuring device.

[0057] In another alternative embodiment, under the second fixing method, the input end can first be subjected to torque in the left direction by a torque sleeve. In response to the torque value reaching the first preset value, the second rotation angle α2 of the input end is measured by the first measuring device, the second rotation angle β2 of the rear shell output end is measured by the second measuring device, and the second rotation angle θ2 of the front shell output end is measured by the third measuring device.

[0058] It should be noted that the above preset values ​​can be set by the user according to the actual measurement needs. In this embodiment, the first preset value can be the torque value with a rotation angle of 0.3 degrees measured by the first measuring device, and the second preset value can be the torque value of 10, but it is not limited to these.

[0059] Step S504: Based on the rotation angles of the input and output terminals under each fixing method, obtain the corresponding gap for each fixing method;

[0060] Optionally, based on the rotation angles of the input and output terminals under each fixing method, the gap corresponding to each fixing method is obtained, including: determining the processing method corresponding to each fixing method; and adjusting the first and second rotation angles of the input and output terminals under each fixing method according to the processing method corresponding to each fixing method to obtain the gap corresponding to each fixing method.

[0061] In one optional embodiment, after obtaining the first and second rotation angles α1 and α2 of the input terminal, the first and second rotation angles β1 and β2 of the rear shell output terminal, and the first and second rotation angles θ1 and θ2 of the front shell output terminal under the first fixed method, the differences between the second and first rotation angles of the input terminal, the rear shell output terminal, and the front shell output terminal can be obtained respectively, resulting in the rotation angle difference of the input terminal being (α2-α1) and the rotation angle difference of the rear shell output terminal being (β1-α2). 2- β1), the angle difference at the output end of the front shell is (θ2-θ1), then the quotient of (α2-α1) and the third preset value i can be obtained to get (α2-α1) / i, and finally (θ2-θ1) and (β1) can be obtained. 2- The difference between β1) and (α2-α1) / i yields the first gap X under the first fixed method. The specific calculation formula is as follows:

[0062]

[0063] Where i is the speed ratio of the reducer.

[0064] In another optional embodiment, after obtaining the first and second rotation angles α1 and α2 of the input terminal, the first and second rotation angles β1 and β2 of the rear shell output terminal, and the first and second rotation angles θ1 and θ2 of the front shell output terminal under the second fixed method, the differences between the second and first rotation angles of the input terminal, the rear shell output terminal, and the front shell output terminal can be obtained respectively, resulting in the rotation angle difference of the input terminal being (α2-α1) and the rotation angle difference of the rear shell output terminal being (β1-α2-α2). 2- β1), the angle difference at the output end of the front shell is (θ2-θ1), and then (β) can be obtained. 2- The sum of β1 and (θ2-θ1) gives (β) 2- β1)+(θ2-θ1), then we can obtain the first quotient value by taking the quotient of (α2-α1) and i, and (β) 2- The quotient of β1) + (θ2 - θ1) and the fourth preset value yields the second quotient value. Finally, the difference between the first and second quotient values ​​can be obtained to get the second gap Y under the second fixed method. The specific calculation formula is as follows:

[0065]

[0066] Where i is the speed ratio of the reducer, and 2 is the fourth preset value.

[0067] Step S506: Based on the clearances corresponding to various fixing methods, the target clearance of the reducer is obtained.

[0068] Optionally, the target clearance of the reducer is obtained based on the clearances corresponding to various fixing methods, including: obtaining the difference between the clearances corresponding to various fixing methods to obtain the target clearance.

[0069] In one optional embodiment, the target gap Z can be obtained by measuring the difference between the second gap and the first gap, and the specific calculation formula is as follows:

[0070] Z = YX.

[0071] In the first fixing method of the above embodiment, the output end of the front housing of the reducer is in an active state, while the input end and the output end of the rear housing are fixed. At this time, a torque wrench or other method can be used to apply right-hand torque to the input end via the torque sleeve 3. The specific value of the input torque is based on a rotation angle of approximately 0.3° produced by the level gauge at the input end. Assuming this torque value is a Nm, the rotation angles of the level gauges at the input end, the front housing output end, and the rear housing output end are recorded as α1, β1, and θ1 when the torque is applied in the forward direction a. Subsequently, a reverse torque of -a Nm is applied to the torque sleeve at the front housing end, and the three level gauge values ​​are recorded as α2, β2, and θ2. Then, by calculation, the angular clearance X of the differential assembly is X = (β... 2-β1)-(θ2-θ1)-(α2-α1) / i, where i is the speed ratio of the reducer.

[0072] In the second fixing method of the above embodiment, the input end of the reducer is in an active state, while the output end is fixed. At this time, a torque wrench or other method can be used to apply right-hand torque to the input end via the torque sleeve 3. The input torque should be no greater than 10 Nm, specifically based on a rotation angle of approximately 0.3° produced by the output end level gauge. Assuming this torque value is b Nm, record the forward input torque b, and the rotation angles of the input end level gauge 6, the front housing output end level gauge 2, and the rear housing output end level gauge 11, respectively, as α1, β1, and θ1. Then, apply a reverse torque of -b Nm to the input end torque sleeve, and record the three level gauge values ​​as α2, β2, and θ2. Then, by calculation, the angular clearance Y of the reducer assembly can be obtained as Y = (α2 - α1) / i - [(β...] 2- β1)+(θ2-θ1)] / 2, where i is the speed ratio of the reducer.

[0073] After completing the above two measurements, the differential assembly clearance can be obtained as X, the reducer assembly clearance as Y, and then the clearance of the reduction gear in the reducer can be calculated as Z = YX.

[0074] The measurement and calculation methods in this scheme are equivalent to the clearance value of the reducer assembly at the output end position acting on the wheel, which can be multiplied by the speed ratio to obtain the angular clearance at the input end position of the reducer.

[0075] Example 3

[0076] According to another aspect of the present invention, a processor is also provided, which is used to run a program, wherein the program executes the reducer clearance measurement method of any one of the above embodiments.

[0077] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0078] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0079] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0080] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0081] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0082] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0083] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A speed reducer clearance measuring device, characterized in that, include: A workbench is used to place the reducer; a fixing component is used to fix the reducer to the workbench in various ways, wherein different fixing methods are used to fix different expansion sleeve clamps to the workbench; multiple expansion sleeve clamps are respectively connected to the spline at the input end and the spline at the output end of the reducer; a torque sleeve is installed on the expansion sleeve clamp connected to the spline at the input end for applying torque to the input end; multiple measuring devices are respectively placed on the multiple expansion sleeve clamps for measuring the rotation angle of the input end and the output end under different fixing methods; wherein, the fixing component includes: at least one fixing support column, used for... The target expansion sleeve clamps corresponding to the various fixing methods among the plurality of expansion sleeve clamps are fixed to the worktable; the first fixing method is: the at least one fixing support includes: a first fixing support for fixing the expansion sleeve clamp with spline connection at the input end to the worktable; a second fixing support for fixing the expansion sleeve clamp with spline connection at the output end of the rear shell to the worktable; the second fixing method is: the at least one fixing support includes: a second fixing support for fixing the expansion sleeve clamp with spline connection at the output end of the rear shell to the worktable; a third fixing support for fixing the expansion sleeve clamp with spline connection at the output end of the front shell to the worktable.

2. The reducer clearance measuring device according to claim 1, characterized in that, Each expansion sleeve clamp includes: a sleeve for holding the measuring device; an expansion sleeve fixed to one end of the sleeve for connecting with the spline of the input end and the spline of the output end; and a fastener fixed to the other end of the sleeve for mounting the torque sleeve.

3. The reducer clearance measuring device according to claim 2, characterized in that, The fastener includes: a screw, fixed to the other end of the sleeve; and a nut, threadedly connected to the screw.

4. The reducer clearance measuring device according to claim 1, characterized in that, The mounting component also includes a flange for securing the reducer.

5. A method for measuring the clearance of a speed reducer, characterized in that, The reducer clearance measurement method is applied to the reducer clearance measuring device according to any one of claims 1 to 4. The reducer clearance measurement method includes: applying torque to the input end through the torque sleeve and obtaining the rotation angles of the input end and the output end under multiple fixed conditions output by the multiple measuring devices; obtaining the clearance corresponding to each fixed condition based on the rotation angles of the input end and the output end under each fixed condition; and obtaining the target clearance of the reducer based on the clearances corresponding to the multiple fixed conditions.

6. The method according to claim 5, characterized in that, Applying torque to the input end through the torque sleeve and obtaining the rotation angles of the input end and the output end under the multiple fixed modes output by the multiple measuring devices includes: applying torque to the input end in a first direction through the torque sleeve and obtaining the first rotation angle of the input end and the output end under the multiple fixed modes; applying torque to the input end in a second direction through the torque sleeve and obtaining the second rotation angle of the input end and the output end under the multiple fixed modes.

7. The method according to claim 6, characterized in that, Based on the rotation angles of the input and output terminals under each fixing method, the gap corresponding to each fixing method is obtained, including: determining the processing method corresponding to each fixing method; and adjusting the first and second rotation angles of the input and output terminals under each fixing method according to the processing method corresponding to each fixing method to obtain the gap corresponding to each fixing method.

8. The method according to claim 5, characterized in that, The target clearance of the reducer is obtained based on the clearances corresponding to the various fixing methods, including: obtaining the difference between the clearances corresponding to the various fixing methods to obtain the target clearance.

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