Measuring equipment for gear shaft system of speed reducer

Abstract

The invention discloses measuring equipment for a gear shaft system of a speed reducer. The measuring equipment comprises a rack assembly, a height measuring assembly and a bearing assembly, the rack assembly comprises a bottom frame; the top surface of the underframe is a supporting surface; the bearing assembly comprises a bearing seat; the bearing seat is arranged on the supporting surface, and the bearing seat is used for bearing the bottom surface of a shafting part to be tested; the height measuring assembly comprises a first lifting mechanism and a displacement sensor; the fixed end of the first lifting mechanism is arranged on the supporting face, and the free end of the first lifting mechanism can do reciprocating motion in the vertical direction. An abutting part is arranged at the free end of the first lifting mechanism; the fixed end of the displacement sensor is arranged on the supporting face, and the sensing end of the displacement sensor is located on the movement path of the abutting part. When the free end of the first lifting mechanism abuts against the top surface of the to-be-detected shafting part, the abutting part abuts against the sensing end so as to detect the height of the to-be-detected shafting part. According to the technical scheme, the measurement accuracy and efficiency can be improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a measuring device for a reducer gear shaft system. Background Technology

[0002] The height measurement of the gear shaft system in a reducer is a critical inspection item affecting the performance of the transmission system during vehicle development. It directly impacts the accuracy of gear meshing and the stability of shaft assembly, which in turn has a cascading effect on the efficiency of vehicle power transmission, operating noise, and smoothness. However, in current applications, most related measurement work in China still relies on traditional manual methods. The accuracy of manual measurement results is easily affected by the operator's experience and condition, resulting in certain error fluctuations, and the efficiency is relatively low. Summary of the Invention

[0003] This application proposes a measuring device for reducer gear shaft systems to improve measurement accuracy and efficiency.

[0004] To achieve the above objectives, this application discloses the following technical solutions:

[0005] One of the measuring devices includes: a frame assembly, a height measuring assembly, and a load-bearing assembly;

[0006] The rack assembly includes: a base frame; the top surface of the base frame is a support surface;

[0007] The bearing assembly includes: a bearing seat; the bearing seat is disposed on the support surface, and the bearing seat is used to support the bottom surface of the shaft system part to be tested;

[0008] The height measurement component includes: a first lifting mechanism and a displacement sensor;

[0009] The fixed end of the first lifting mechanism is disposed on the support surface, and the free end of the first lifting mechanism can reciprocate in the vertical direction; and the free end of the first lifting mechanism is provided with a pressing part.

[0010] The fixed end of the displacement sensor is disposed on the support surface, and the sensing end of the displacement sensor is located on the movement path of the pressing part;

[0011] When the free end of the first lifting mechanism presses against the top surface of the shaft component to be tested, the pressing part presses against the sensing end to detect the height of the shaft component to be tested.

[0012] In some embodiments, the height measuring component further includes: a second lifting mechanism, the fixed end of the second lifting mechanism being fixed to the support surface, and the free end of the second lifting mechanism being provided with the sensing end of the displacement sensor.

[0013] In some embodiments, there are multiple carriers and multiple sets of height measuring components; the number of carriers and the number of height measuring components correspond one-to-one.

[0014] In some embodiments, the measuring device further includes: a torque measuring component;

[0015] The free end of the first lifting mechanism is used to press against the top surface of the shaft system part to be tested and to engage with the outer ring of the shaft system part to be tested;

[0016] The torque measurement component includes: a pressing mechanism, a main shaft, a rotating mechanism, and a torque sensor;

[0017] The first part of the pressing mechanism is configured to engage the inner ring of the shaft part to be tested, and the first part is connected to the outer ring of the main shaft.

[0018] The rotating mechanism can drive the outer ring of the main shaft to rotate, and the torque sensor is disposed on the rotating mechanism to measure the output torque of the rotating mechanism.

[0019] In some embodiments, the pressing mechanism includes: a tensioning mechanism and a pressing cylinder;

[0020] The tensioning mechanism includes: a tensioning head and a tensioning element; the first end of the tensioning element is connected to the tensioning head, and the second end is connected to the pressing cylinder;

[0021] When the tensioner moves axially downward, the tensioning head expands radially to clamp the inner ring of the shaft part to be tested; a portion of the tensioner can be connected to the outer ring of the spindle.

[0022] In some embodiments, the tensioning element further includes: a tapered support, a tie rod, a tension sleeve mounting base, and a connecting rod;

[0023] The tensioning head, the tapered support, the tie rod, the expansion sleeve mounting base, and the connecting rod are connected in sequence. The tie rod has a radial through hole so that the cylindrical pin passes through the radial through hole and connects with the outer ring of the spindle.

[0024] In some embodiments, the inner ring of the spindle has an axial through hole, and the second end of the tensioner passes through the axial through hole and is connected to the pressure cylinder.

[0025] In some embodiments, the rotating mechanism includes: a rotary motor, a drive pulley, a belt, and a driven pulley;

[0026] The drive pulley is fitted onto the drive shaft of the rotary motor, and the driven pulley is fitted onto the outer ring of the main shaft; the belt is wound around the outer circumference of the drive pulley and the driven pulley;

[0027] The torque sensor is mounted on the drive shaft of the rotary motor.

[0028] In some embodiments, there are multiple bearing seats and multiple torque measuring components, wherein the number of bearing seats and the number of torque measuring components correspond one-to-one.

[0029] In some embodiments, the measuring device further includes: a positioning component;

[0030] The positioning component includes a positioning sleeve, wherein the free end of the first lifting mechanism presses against the top surface of the shaft system part to be tested through the positioning sleeve, and the positioning sleeve engages with the outer ring of the shaft system part to be tested.

[0031] As can be seen from the above technical solution, a measuring device for reducer gear shaft systems, through the synergistic effect of the frame assembly, height measuring assembly, and load-bearing assembly, can improve the accuracy and efficiency of measuring the shaft system parts under test. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application 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 merely some examples or embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort, and this application can be applied to other similar scenarios based on the provided drawings, all of which fall within the scope of protection of this invention. Unless obvious from the linguistic context or otherwise specified, the same reference numerals in the drawings represent the same structure or operation.

[0033] Figure 1 This is a schematic diagram of the overall structure of the measuring device provided in the embodiments of this application;

[0034] Figure 2 This is a partial structural schematic diagram of the measuring device provided in the embodiments of this application;

[0035] Figure 3 A front view of the torque measurement assembly and other structures;

[0036] Figure 4 A cross-sectional view of the torque measurement assembly and other structures;

[0037] Figure 5 This is a schematic diagram of the second lifting mechanism;

[0038] Figure 6 This is a schematic diagram of the tensioning mechanism;

[0039] Figure 7This is a schematic diagram showing the fit between the mounting base and the connecting rod;

[0040] Figure 8 A three-dimensional view of the support base;

[0041] Figure 9 This is a top view of the support base;

[0042] Figure 10 A cross-sectional view of the positioning component;

[0043] Figure 11 , Figure 12 and Figure 13 Schematic diagrams of different shaft system parts to be tested.

[0044] in:

[0045] 10 is the rack assembly, and 11 is the base frame;

[0046] 20 is a height measurement component, 21 is a first lifting mechanism, 22 is a displacement sensor, 23 is a second lifting mechanism, 231 is a cable chain, 232 is a servo module, and 233 is a sensor sleeve.

[0047] 30 is the load-bearing component, and 31 is the load-bearing base;

[0048] 40 represents the shaft system parts to be tested;

[0049] 50 is the torque measuring component; 51 is the pressing mechanism; 511 is the tensioning mechanism; 5111 is the tensioning head; 5112 is the tensioning element; 5113 is the tapered support; 5114 is the tie rod; 5115 is the expansion sleeve mounting base; 5116 is the connecting rod; 5117 is the radial through hole; 512 is the pressing cylinder; 52 is the main shaft; 53 is the rotating mechanism; 531 is the rotary motor; 532 is the drive pulley; 533 is the belt; 534 is the driven pulley; 535 is the coupling; 536 is the diaphragm coupling; 54 is the torque sensor; 55 is the torque calibration component.

[0050] 60 is the positioning component, 61 is the positioning sleeve, 62 is the base plate, 63 is the core sleeve, 64 is the mounting base, and 65 is the quick-release pin.

[0051] 70 is the control component. Detailed Implementation

[0052] Explanation of relevant terms:

[0053] Shaft height of the shaft system component under test: the distance between the bearing mounting surfaces at both ends of the shaft system, which affects the shaft system's lifespan and noise.

[0054] Shaft torque of the shaft components under test: i.e. rotational torque, which affects shaft life, noise, and overall vehicle fuel economy.

[0055] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. The described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0056] For the purposes of this application, the following structures are described in detail with reference to the accompanying drawings:

[0057] To improve the accuracy and efficiency of measurements, this application provides a measuring device for reducer gear shaft systems, such as... Figure 1 As shown, the measuring device includes a frame assembly 10, a height measuring assembly 20, and a load-bearing assembly 30;

[0058] like Figure 2 As shown, the rack assembly 10 may include: a base frame 11; the top surface of the base frame 11 is a support surface.

[0059] like Figure 2 As shown, the bearing assembly 30 may include: a bearing seat 31; the bearing seat 31 is disposed on the support surface and is used to support the bottom surface of the shaft system part 40 to be tested.

[0060] like Figure 2 As shown, the height measurement component 20 may include: a first lifting mechanism 21 and a displacement sensor 22.

[0061] The fixed end of the first lifting mechanism 21 is disposed on the support surface, and the free end of the first lifting mechanism 21 can reciprocate in the vertical direction; and the free end of the first lifting mechanism 21 is provided with a pressing part.

[0062] The fixed end of the displacement sensor 22 is disposed on the support surface, and the sensing end of the displacement sensor 22 is located on the movement path of the pressing part.

[0063] When the free end of the first lifting mechanism 21 presses against the top surface of the shaft part 40 to be tested, the pressing part presses against the sensing end to detect the height of the shaft part 40 to be tested.

[0064] In the above technical solutions, such as Figure 2 As shown, the bearing seat 31 is placed on the support surface, and then the first lifting mechanism 21 and the displacement sensor 22 are placed on the support surface; when measuring the height of the shaft system part 40 to be measured, the bottom surface of the shaft system part 40 to be measured is placed on the bearing seat 31, and when the free end of the first lifting mechanism 21 moves downward in the vertical direction, as shown... Figure 2As shown by the arrow, when the free end of the first lifting mechanism 21 presses against the top surface of the shaft system part 40 to be tested, the pressing part presses against the sensing end to detect the height of the shaft system part 40 to be tested.

[0065] In the above technical solution, the measurement principle of the displacement sensor 22 is as follows: the first lifting mechanism 21 moves down from its initial high position, and its free end first contacts the top surface of the shaft part 40 to be measured and then stops moving. The pressing part, which moves synchronously with the free end, will just touch the sensing end. The sensor converts the contact signal into an electrical signal, and the movement stroke of the lifting mechanism corresponding to this signal is used to detect the height of the shaft part 40 to be measured. In this technical solution, the displacement sensor 22 can be a spring-type sensor. The first lifting mechanism 21 moves down, and its free end contacts the top surface of the shaft part 40 to be measured and then stops. The pressing part, which moves synchronously, squeezes the sensing end of the spring-type sensor, compressing the spring inside the sensor. The deformation of the spring is converted into a corresponding electrical signal. The movement stroke of the lifting mechanism associated with this signal can be used to determine the height of the shaft part 40 to be measured. In this way, the detection efficiency can be improved, and the accuracy of the detection results can be guaranteed.

[0066] In order to adjust the position of the sensing end of the displacement sensor 22 so that it can better match the pressing part, such as Figure 2 As shown, the height measuring assembly 20 may further include: a second lifting mechanism 23, the fixed end of which is fixed to the support surface, and the free end of which is provided with the sensing end of a displacement sensor 22. In this technical solution, the relative height of the sensing end of the displacement sensor 22 can be adjusted as needed to adapt to the relative height of different shaft system parts 40 to be measured.

[0067] In the above technical solutions, it should be noted that, as Figure 5 As shown, the second lifting mechanism 23 may include a cable chain 231 and a servo module 232. The displacement sensor 22 is fixed to the movable section of the cable chain 231, which is connected to the moving end of the servo module 232. When the servo module 232 drives the moving end to rise or fall, it synchronously drives the movable section of the cable chain 231 to move, thereby causing the displacement sensor 22 to move synchronously. The cable chain 231 also protects the sensor's wiring, preventing the wiring from being pulled and affecting the detection. In addition, the second lifting mechanism 23 may also include a sensor sleeve 233, which effectively protects the sensing end of the displacement sensor 22 from accidental damage. It should also be noted that the first lifting mechanism 21 and the second lifting mechanism 23 may include existing components capable of achieving the above-mentioned lifting functions, which will not be discussed in detail here. In addition, the height measurement component 20 also includes a height calibration component, which is used to calibrate the displacement sensor 22 and improve the measurement accuracy.

[0068] In order to improve detection efficiency, such as Figure 1 and Figure 2As shown, there are multiple bearing seats 31 and multiple sets of height measuring components 20; the number of bearing seats 31 and the number of height measuring components 20 correspond one-to-one. In this way, multiple shaft parts 40 to be measured can be measured simultaneously.

[0069] In order to detect the torque of the shaft component 40 under test, such as Figure 3 and Figure 4 As shown, the measuring device may also include: torque measuring component 50.

[0070] The free end of the first lifting mechanism 21 is used to press against the top surface of the shaft system part 40 to be tested and to lock the outer ring of the shaft system part 40 to be tested. It should be noted that the shaft system part 40 to be tested includes an outer ring and an inner ring, and the outer ring rotates relative to the inner ring. The specific structure of the shaft system part 40 to be tested can be found in [reference needed]. Figure 11 , Figure 12 and Figure 13 As shown.

[0071] like Figure 3 As shown, the torque measurement assembly 50 may include: a pressing mechanism 51, a main shaft 52, a rotating mechanism 53, and a torque sensor 54;

[0072] The first part of the pressing mechanism 51 is configured to engage the inner ring of the receiving shaft part 40, and the first part is connected to the outer ring of the main shaft 52.

[0073] The rotating mechanism 53 can drive the outer ring of the spindle 52 to rotate. The torque sensor 54 is mounted on the rotating mechanism 53 to measure the output torque of the rotating mechanism 53. It should be noted that the spindle 52 includes an inner ring and an outer ring, and the inner ring can rotate relative to the outer ring.

[0074] In the above technical solution, during use, the rotating mechanism 53 is started, and the rotating mechanism 53 drives the outer ring of the main shaft 52 to rotate. At this time, the pressing mechanism 51 does not clamp the inner ring of the shaft part 40 to be tested. The torque sensor 54 measures the output torque of the rotating mechanism 53 at this time, which is the idle torque N1. Then, the pressing mechanism 51 clamps the inner ring of the shaft part 40 to be tested. Then, the rotating mechanism 53 is started, and the rotating mechanism 53 drives the outer ring of the main shaft 52 to rotate. While the outer ring of the main shaft 52 is rotating, it drives the inner ring of the shaft part 40 to be tested to rotate relative to the outer ring of the shaft part 40 through the pressing mechanism 51. At this time, the torque sensor 54 measures the output torque of the rotating mechanism 53 at this time, which is the load torque N2. Then, the load torque N2 is subtracted from the idle torque N1 to obtain the rotation torque N0 of the shaft part 40 when the inner ring is relative to the outer ring.

[0075] In the above technical solution, the torque measurement component 50 also includes a torque calibration component 55, which is connected to the sensor calibration ring of the torque sensor 54 via a pulley and a wire rope. The torque calibration component 55 can calibrate the output torque of the rotating mechanism 53 and reduce torque measurement errors.

[0076] Based on the above technical solution, in order to secure the inner ring of the shaft part 40 to be tested, such as... Figure 4 As shown.

[0077] The pressing mechanism 51 may include a tensioning mechanism 511 and a pressing cylinder 512.

[0078] like Figure 4 and Figure 6 As shown, the tensioning mechanism 511 may include: a tensioning head 5111 and a tensioning element 5112; the first end of the tensioning element 5112 is connected to the tensioning head 5111, and the second end is connected to the pressing cylinder 512.

[0079] When the tensioner 5112 moves downward along the axial direction, the tensioner head 5111 expands radially to clamp the inner ring of the shaft part 40 to be tested; a part of the tensioner 5112 can be connected to the outer ring of the main shaft 52.

[0080] In the above technical solution, when it is necessary to measure the torque of the shaft part 40 to be tested, the tensioning head 5111 is first inserted into the inner ring of the shaft part 40 to be tested. The pressing cylinder 512 drives the tensioning member 5112 to move downward along the axis, so that the tensioning head 5111 expands radially to clamp the inner ring of the shaft part 40 to be tested. The rotating mechanism 53 drives the inner and outer rings of the shaft part 40 to rotate relative to each other by passing through the outer ring of the main shaft 52, the tensioning member 5112, and the tensioning head 5111 in sequence. Then, the torque of the shaft part 40 to be tested is measured by the torque sensor 54. Furthermore, the tensioning head 5111 may include: an arc-shaped tensioning flap evenly distributed around its circumference, a fixed seat with an inner conical surface, and an outer conical truncated cone at the end of the tensioning member. When the tensioning member 5112 moves downward, the outer conical truncated cone compresses the tensioning flap, causing it to expand outward along the inner conical surface of the fixed seat. The outer side of the tensioning flap engages with the inner ring of the shaft part 40 to be measured, achieving a locking action. A return spring may also be configured for retraction and reset. Of course, the tensioning head 5111 may include existing conventional configurations, which will not be described in detail here. It should also be noted that the support surface has an axial through hole through which the tensioning head 5111 passes from bottom to top.

[0081] Based on the above technical solution, in order to make the movement of the tensioning mechanism 511 smoother, such as Figure 6 and Figure 7 As shown, the tensioning element 5112 may also include: a tapered support 5113, a tie rod 5114, a tension sleeve mounting base 5115, and a connecting rod 5116.

[0082] The tensioning head 5111, tapered support 5113, pull rod 5114, expansion sleeve mounting seat 5115 and connecting rod 5116 are connected in sequence. The pull rod 5114 has a radial through hole 5117 so that the cylindrical pin passes through the radial through hole 5117 and connects with the outer ring of the main shaft 52.

[0083] In the above technical solution, the diameter of the radial through hole 5117 is larger than the diameter of the cylindrical pin, allowing the cylindrical pin to pass through so that the tensioning mechanism 511 can be connected to the outer ring of the main shaft 52 via the cylindrical pin. It should be noted that a groove is provided at the connection point between the outer ring of the main shaft 52 and the cylindrical pin. When the tensioning member 5112 moves axially downwards, i.e., when the tensioning head 5111 engages with the outer ring of the main shaft 52, the cylindrical pin engages with the groove, allowing the tensioning mechanism 511 to be connected to the outer ring of the main shaft 52 via the cylindrical pin. At this time, the load torque N2 can be detected. If the tensioning head 5111 is not engaged with the outer ring of the main shaft 52, both ends of the cylindrical pin are located at the upper end of the groove, preventing the tensioning mechanism 511 from connecting to the outer ring of the main shaft 52. At this time, the idle torque N1 can be detected.

[0084] In the above technical solutions, such as Figure 7 As shown, a quincunx structure is provided between the expansion sleeve mounting base 5115 and the connecting rod 5116 to enable quick rotation of the expansion sleeve mounting base 5115 and the connecting rod 5116.

[0085] To achieve a compact structure for this measuring device, such as Figure 4 As shown, the inner ring of the main shaft 52 has an axial through hole, and the second end of the tensioning member 5112 passes through the axial through hole and is connected to the pressing cylinder 512.

[0086] To enable the rotating mechanism 53 to drive the outer ring of the main shaft 52 to rotate, such as Figure 4 As shown, the rotating mechanism 53 may include: a rotating motor 531, a drive pulley 532, a belt 533, and a driven pulley 534.

[0087] A drive pulley 532 is fitted on the drive shaft of the rotary motor 531, and a driven pulley 534 is fitted on the outer ring of the main shaft 52; a belt 533 is wound around the outer circumference of the drive pulley 532 and the driven pulley 534.

[0088] The torque sensor 54 is mounted on the drive shaft of the rotary motor 531.

[0089] In the above technical solutions, such as Figure 4As shown, the drive shaft of the rotary motor 531 drives the inner ring of the shaft system part 40 under test to rotate sequentially via the drive pulley 532, belt 533, driven pulley 534, outer ring of the main shaft 52, tensioner 5112, and tensioner head 5111. A torque sensor 54, mounted on the drive shaft of the rotary motor 531, is used to detect the rotational torque of the rotary motor 531. The belt 533 is a multi-wedge belt. The rotating mechanism 53 also includes a coupling 535 and a diaphragm coupling 536, with the torque sensor 54 positioned between the coupling 535 and the diaphragm coupling 536.

[0090] To improve the torque measurement efficiency of the shaft system part 40 under test, multiple bearing seats 31 and multiple torque measuring components 50 are used, with a one-to-one correspondence between the number of bearing seats 31 and torque measuring components 50. It should be noted that, in order to achieve the measurement of shaft system parts 40 of different sizes, such as… Figure 11 , Figure 12 and Figure 13 As shown, the dimensions of different support seats 31 can be different.

[0091] It should be noted that, as Figure 8 and Figure 9 As shown, the bearing seat 31 has a bolt U-groove, with one side of the U-groove having a larger diameter (larger than the outer diameter of the countersunk bolt) and the other side having a smaller diameter. When the bolt is loosened, the bearing seat 31 can be rotated at a certain angle and removed, thereby achieving quick replacement and facilitating the replacement of bearing seats 31 of different sizes.

[0092] like Figure 1 and Figure 10 As shown, in order to clamp the outer ring of the shaft part 40 to be measured, the measuring device may also include a positioning component 60.

[0093] The positioning component 60 includes a positioning sleeve 61, the free end of the first lifting mechanism 21 presses against the top surface of the shaft part 40 to be tested through the positioning sleeve 61, and the positioning sleeve 61 is engaged with the outer ring of the shaft part 40 to be tested.

[0094] In use, the positioning sleeve 61 is used to clamp the outer ring of the shaft part 40 to be tested, the first part of the pressing mechanism 51 is used to clamp the inner ring of the shaft part 40 to be tested, and the rotating mechanism 53 is used to drive the inner ring of the shaft part 40 to be tested to rotate relative to the outer ring, thereby measuring the torque of the shaft part 40 to be tested.

[0095] Based on the above technical solutions, such as Figure 10As shown, the positioning assembly 60 also includes: a base plate 62, a centering sleeve 63, a mounting base 64, and a quick-release pin 65. The base plate 62 is mounted on the free end of the first lifting mechanism 21. The centering sleeve 63 and the mounting base 64 are sequentially mounted on the base plate 62. The positioning sleeve 61 is detachably mounted on the mounting base 64 via the quick-release pin 65. By replacing the positioning sleeve 61 of different sizes, measurements of shaft parts 40 of different sizes can be performed.

[0096] In this technical solution, the measuring equipment also includes a control component 70, which comprises an electrical cabinet, a safety guardrail, a servo cylinder control panel, a workstation information display screen, a remote I / O module, and a PLC module. The measuring equipment is internally equipped with a MES traceability system to trace gear shaft height, torque, and other parameters, achieving accurate traceability and measurement result calculation. The remote I / O module is mounted on the base frame 11 and is mainly used to expand I / O interfaces and improve communication efficiency. The workstation information display screen can display the height and torque of the shaft part 40 to be measured.

[0097] In the above context, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0098] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone.

[0099] It should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0100] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. The scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A measuring device for a reducer gear shaft system, characterized in that, The measuring device includes: a frame assembly (10), a height measuring assembly (20), and a load-bearing assembly (30); The rack assembly (10) includes: a base frame (11); the top surface of the base frame (11) is a support surface; The bearing assembly (30) includes: a bearing seat (31); the bearing seat (31) is disposed on the support surface, and the bearing seat (31) is used to support the bottom surface of the shaft system part (40) to be tested; The height measurement component (20) includes: a first lifting mechanism (21) and a displacement sensor (22); The fixed end of the first lifting mechanism (21) is disposed on the support surface, and the free end of the first lifting mechanism (21) can reciprocate in the vertical direction; and the free end of the first lifting mechanism (21) is provided with a pressing part; The fixed end of the displacement sensor (22) is disposed on the support surface, and the sensing end of the displacement sensor (22) is located on the movement path of the pressing part; When the free end of the first lifting mechanism (21) presses against the top surface of the shaft part (40) to be tested, the pressing part presses against the sensing end to detect the height of the shaft part (40) to be tested.

2. The measuring device for the gear shaft system of the reducer as described in claim 1, characterized in that, The height measuring component (20) further includes: a second lifting mechanism (23), the fixed end of the second lifting mechanism (23) is fixed to the support surface, and the free end of the second lifting mechanism (23) is provided with the sensing end of the displacement sensor (22).

3. The measuring device for the gear shaft system of the reducer as described in claim 1, characterized in that, There are multiple bearing seats (31) and multiple sets of height measuring components (20); the number of bearing seats (31) and the number of height measuring components (20) correspond one-to-one.

4. The measuring device for the gear shaft system of a reducer as described in any one of claims 1-3, characterized in that, The measuring device further includes: a torque measuring component (50); The free end of the first lifting mechanism (21) is used to press against the top surface of the shaft system part (40) to be tested and to engage with the outer ring of the shaft system part (40) to be tested; The torque measurement assembly (50) includes: a pressing mechanism (51), a main shaft (52), a rotating mechanism (53), and a torque sensor (54). The first part of the pressing mechanism (51) is configured to engage the inner ring of the shaft part (40) to be tested, and the first part is connected to the outer ring of the main shaft (52). The rotating mechanism (53) can drive the outer ring of the main shaft (52) to rotate, and the torque sensor (54) is disposed on the rotating mechanism (53) for measuring the output torque of the rotating mechanism (53).

5. The measuring device for the gear shaft system of the reducer as described in claim 4, characterized in that, The pressing mechanism (51) includes: a tensioning mechanism (511) and a pressing cylinder (512); The tensioning mechanism (511) includes a tensioning head (5111) and a tensioning element (5112); the first end of the tensioning element (5112) is connected to the tensioning head (5111), and the second end is connected to the pressing cylinder (512). When the tensioner (5112) moves axially downward, the tensioner head (5111) expands radially to clamp the inner ring of the shaft part (40) to be tested; a portion of the tensioner (5112) can be connected to the outer ring of the main shaft (52).

6. The measuring device for the gear shaft system of the reducer as described in claim 5, characterized in that, The tensioning element (5112) further includes: a tapered support (5113), a tie rod (5114), a tension sleeve mounting base (5115), and a connecting rod (5116). The tensioning head (5111), the tapered support (5113), the pull rod (5114), the expansion sleeve mounting base (5115), and the connecting rod (5116) are connected in sequence. The pull rod (5114) has a radial through hole (5117) so that the cylindrical pin passes through the radial through hole (5117) and connects with the outer ring of the main shaft (52).

7. The measuring device for the gear shaft system of a reducer as described in claim 5, characterized in that, The inner ring of the main shaft (52) has an axial through hole, and the second end of the tensioner (5112) passes through the axial through hole and is connected to the pressure cylinder (512).

8. The measuring device for the gear shaft system of a reducer as described in claim 5, characterized in that, The rotating mechanism (53) includes: a rotary motor (531), a drive pulley (532), a belt (533), and a driven pulley (534). The drive pulley (532) is sleeved on the drive shaft of the rotary motor (531), and the driven pulley (534) is sleeved on the outer ring of the main shaft (52); the belt (533) is wound around the outer periphery of the drive pulley (532) and the driven pulley (534); The torque sensor (54) is mounted on the drive shaft of the rotary motor (531).

9. The measuring device for the gear shaft system of a reducer as described in claim 5, characterized in that, The number of the bearing seats (31) is multiple, and the number of the torque measuring components (50) is multiple, wherein the number of the bearing seats (31) and the number of the torque measuring components (50) correspond one-to-one.

10. The measuring device for the gear shaft system of a reducer as described in claim 5, characterized in that, The measuring device further includes: a positioning component (60); The positioning component (60) includes a positioning sleeve (61), the free end of the first lifting mechanism (21) presses against the top surface of the shaft part (40) to be tested through the positioning sleeve (61), and the positioning sleeve (61) engages with the outer ring of the shaft part (40) to be tested.

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