Gear detection equipment

Abstract

The utility model discloses a gear detection device which comprises a frame body, a standard component mechanism, a test piece mechanism and a plane sliding table mechanism, the standard component mechanism comprises a standard gear piece and a load element, and the load element is connected to the standard gear piece to provide load torque for the standard gear piece. The test piece mechanism comprises a test assembly and a detection device, the test assembly is installed on the frame body and is used for fixing a test gear piece, the detection device is installed on the test assembly so as to collect and analyze data in the operation process of the test assembly, and the plane sliding table mechanism is installed on the frame body. According to the gear detection equipment provided by the technical scheme of the utility model, the torsional vibration sensor is adopted to measure torsional vibration, and the circular grating is adopted to measure transmission errors, so that single-meshing detection of a gear with a load can be realized, and the accuracy of a detection result can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear detection, in particular to a gear detection device. Background Art

[0002] In the process of gear manufacturing, the inspection of gear processing quality is a very important link. At present, there are various gear inspection equipment in the gear manufacturing industry, but most of the equipment is noise measurement or runout measurement. These measurement methods have poor accuracy and take up more time. There are also some double meshing tests, in which both tooth surfaces of the two gears are in contact, and the gears are detected by the change of the center distance during the test. However, with the continuous development of electric vehicle technology today, the market share of electric vehicles is getting higher and higher, and the manufacturing of high-speed gears in electric vehicle drive systems has also attracted more and more attention. The difference between high-speed gears and traditional automotive gears is that the speed is higher when used. Generally, the input shaft has exceeded 10,000 revolutions per minute, and the transmission has only undergone a maximum of two reductions, and the transmission torque is large. Therefore, the manufacturing accuracy requirements of high-speed gears used in electric vehicles are much higher than those of general automotive gears, and it is difficult to meet the measurement requirements using general noise measuring instruments or double meshing instruments. Therefore, the automotive gear manufacturing industry generally adopts a single meshing instrument measurement method for automotive high-speed gears.

[0003] Although the single meshing measurement technology of gears is relatively mature, the common single meshing instruments currently have several disadvantages. First, the mechanical structure is relatively complex, and friction wheels or differential structures must be used to achieve high-precision measurements. Second, there are many no-load tests, and the traditional no-load meshing test cannot well reflect the NVH performance affected by gear manufacturing deviations during gear transmission. Utility Model Content

[0004] The main purpose of the utility model is to provide a gear detection equipment, aiming to solve the problem that traditional gear single meshing test machinery generally uses friction wheels or differential structures to achieve this. This measurement method has a relatively complex structure. At the same time, traditional testing methods mostly use no-load tests. Traditional no-load meshing tests cannot well reflect the NVH performance problem affected by gear manufacturing deviations during gear transmission.

[0005] In order to achieve the above-mentioned purpose, the gear detection device proposed in the utility model is used for single meshing detection of gears, and the gear detection device comprises:

[0006] Frame;

[0007] A standard component mechanism, comprising a standard gear component and a load element, wherein the load element is connected to the standard gear component to provide a load torque to the standard gear component;

[0008] A test piece mechanism, comprising a test assembly and a detection device, wherein the test assembly is mounted on the frame, the test assembly is used to fix the test gear piece, and the detection device is mounted on the test assembly to collect and analyze data during the operation of the test assembly; and

[0009] A plane slide mechanism is installed on the frame, the standard gear part and the load element are both installed on the plane slide mechanism, and the plane slide mechanism is used to drive the standard gear part to engage with the test gear part so that the test component drives the standard gear part to move.

[0010] Preferably, a second mounting frame is provided on the frame body;

[0011] The planar slide mechanism comprises:

[0012] A slide body, slidably mounted on the second mounting frame;

[0013] A grating ruler is mounted on a downward end surface of the second mounting frame to monitor the position of the slide body; and

[0014] The second motor is mounted on the frame, the frame is provided with a screw rod rotatably connected thereto, one end of the screw rod is connected to the second motor, the screw rod is provided with a slider threadedly matched therewith, the slider is provided with a guide portion, the guide portion is provided with a sliding portion slidably connected thereto, a first spring is provided between the sliding portion and the slider, and the slide body is connected to the sliding portion.

[0015] Preferably, the test component comprises:

[0016] A first sleeve is vertically mounted on the second mounting frame along its axis;

[0017] A driving shaft is rotatably mounted on the inner wall of the first sleeve, and a fixing piece is provided at one end of the driving shaft to fix the test gear piece; and

[0018] A first motor is fixedly mounted on the second mounting frame, and an output end of the first motor is connected to one end of the driving shaft to drive the driving shaft to rotate horizontally; and / or,

[0019] The second mounting frame is provided with a slide rail, and the slide platform body is slidably mounted on the slide rail.

[0020] Preferably, a second sleeve is vertically mounted on the slide body, a driven shaft rotatably connected thereto is provided on the inner wall of the second sleeve, the standard gear member is mounted on an upward end of the driven shaft, the load element is mounted on the slide body, and the output end of the load element is connected to a downward end of the driven shaft.

[0021] Preferably, a dustproof sealing structure is provided between the first sleeve and the driving shaft;

[0022] The dustproof sealing structure comprises:

[0023] A bead sleeve installed between the driving shaft and the fixing member;

[0024] A flange member, comprising a first flange and a second flange, wherein the first flange and the second flange are respectively mounted on the upper and lower ends of the first sleeve; and,

[0025] A bearing group, comprising four bearing members arranged between the first sleeve and the driving shaft, wherein the four bearing members are divided into two groups, the upper and lower groups, the ends of the upper and lower groups of bearing members are respectively attached to one end of the first flange and the second flange, and a spacer support is arranged between the two groups of bearing members;

[0026] A dustproof ring is further provided on a side of the second flange corresponding to the driving shaft; and / or,

[0027] The driving shaft is provided with a connecting flange, and the fixing member is installed on the connecting flange.

[0028] Preferably, the detection device comprises:

[0029] The circular grating sensor comprises a circular grating reading head and a circular grating disk, the second flange is provided with a bracket, the circular grating reading head is mounted on the bracket, and the circular grating disk is fixedly mounted on the driving shaft corresponding to the circular grating reading head;

[0030] The torsional vibration sensor comprises a torsional vibration reading head and a torsional vibration disk, wherein the bracket is provided with a connecting plate, the torsional vibration reading head is mounted on the connecting plate, and the torsional vibration disk is fixedly mounted on the driving shaft; and

[0031] The host computer system is connected to the torsional vibration reading head and the circular grating reading head to collect and analyze the motion data of the driving shaft.

[0032] Preferably, the second mounting frame is further provided with a top positioning mechanism:

[0033] The top positioning mechanism comprises:

[0034] top notch;

[0035] A guide installation structure, wherein the guide installation mechanism comprises an L-shaped slide and a counterweight block, a guide rail is provided on a vertical side of the second mounting frame facing outward, the L-shaped slide is slidably installed on the guide rail, a limit block is provided at a vertical end of the L-shaped slide, the counterweight block is connected to the limit block, and the top is fixedly installed on the L-shaped slide in a vertical shape corresponding to the end of the driving shaft; and

[0036] A driving device is installed on the second mounting frame, and one end of the driving device is connected to the L-shaped slide to drive the L-shaped slide to move on the guide rail.

[0037] Preferably, an adjustment component is provided on a downward horizontal end portion of the second mounting frame:

[0038] The adjustment assembly comprises a plurality of threaded support rods mounted on a lower end of the second mounting frame, and a buffer pad is provided on an end of the plurality of threaded support rods that contacts the frame body; and / or,

[0039] The second mounting frame is provided with a first locking cylinder to lock and limit the L-shaped slide, and the slide rail is provided with a second locking cylinder to lock the slide body.

[0040] Preferably, an oil injection assembly is provided on the slide body to lubricate the standard gear part and the detection gear.

[0041] Preferably, a protective cover is provided on the frame, a safety door and a start button for controlling the start and stop of the entire device are provided on the protective cover, and a safety lock is provided on the safety door.

[0042] In the technical solution of the present utility model, a torsional vibration sensor is used to measure torsional vibration, and a circular grating is used to measure transmission error, so that single meshing detection of gears with load and single meshing detection of gears that meet the requirements of automotive high-speed gears can be realized. Among them, after increasing the load torque, the NVH performance affected by the gear manufacturing deviation during gear transmission can be better reflected, and the detection results can be made more accurate and reliable. Traditional single meshing gear detection equipment can detect gears with a precision of 6 to 7 levels, and the equipment provided in this solution can detect gears with a precision of 4 to 5 levels.

[0043] Compared with traditional single-meshing gear testing equipment, the mechanism testing process proposed in this scheme is fully automatic, the equipment has a simple structure and compact space, and the operator only needs to perform loading and unloading operations, making the equipment more convenient and safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0045] Figure 1 This is a schematic diagram of the overall appearance of the gear detection device provided by the utility model;

[0046] Figure 2 for Figure 1 Internal schematic diagram of the ;

[0047] Figure 3 for Figure 1 Schematic diagram of the installation of the load element;

[0048] Figure 4 for Figure 1 Schematic diagram of the overall appearance structure of the top positioning mechanism;

[0049] Figure 5 for Figure 1 Schematic diagram of the driving shaft installation structure;

[0050] Figure 6 for Figure 1 A schematic diagram of the matching structure between the middle slide body and the second mounting frame;

[0051] Figure 7 for Figure 1 A schematic diagram of the installation structure of the second motor in the mid-plane slide mechanism;

[0052] Figure 8 for Figure 1 Schematic diagram of the driving component structure in FIG.

[0053] Fig. 9 for Figure 1 Schematic diagram of the structure of the fixing parts.

[0054] Description of Figure Numbers:

[0055]

[0056]

[0057] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0059] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0060] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0061] Although the single meshing measurement technology of gears is relatively mature, the common single meshing instruments currently have several disadvantages. First, the mechanical structure is relatively complex, and friction wheels or differential structures must be used to achieve high-precision measurements. Second, there are many no-load tests, and the traditional no-load meshing test cannot well reflect the NVH performance problems affected by gear manufacturing deviations during gear transmission.

[0062] In order to solve the above problems, the utility model proposes a gear detection device. Figures 1 to 9 This is a schematic structural diagram of an embodiment of a gear detection device 1000 provided by the present invention.

[0063] Please refer to Figures 1 to 9 The utility model proposes a gear detection device 1000. Different from the conventional detection device, in this embodiment, a load element 42 is added to the mounting structure of the standard gear part 2 to increase the load torque for the standard gear part 2 during the meshing and rotation of the standard gear part 2 and the test gear part. After the load torque is increased, the NVH performance affected by the gear manufacturing deviation during gear transmission can be better reflected. Specifically, the load element 42 and the standard gear part 2 mentioned above together constitute a standard part mechanism. In the actual detection process, the test gear part is first fixed on the test assembly, and then the standard gear part 2 is driven to mesh with the test gear part through the plane slide mechanism on the frame 1, and the test assembly drives the above meshing gear pair to rotate. In this process, the load element 42 provides a torque in the opposite direction to the test assembly. At the same time, the detection device installed on the test assembly will collect and analyze data such as the rotation speed and torsional vibration of the test gear part during the movement.

[0064] Among them, when the standard gear part 2 is meshed with the test gear part, the second motor 14 drives the lead screw 15 to rotate, and the slider 16 drives the slide body 12 to slide horizontally on the second mounting frame 11 when it moves. When the standard gear part 2 is fed to the working position with the slide body 12, if the standard gear part 2 and the test gear part are not correctly meshed, that is, the two gear tooth tops are in contact with the tooth tops, instead of the tooth tops being correctly meshed into the tooth grooves, the standard gear will be blocked and stop feeding, and the first motor 33 will not stop rotating as a result. This will cause the first spring 163 to be compressed by the distance that should ensure the correct meshing of the tooth tops and the tooth grooves, so as to avoid the collision between the standard gear and the gear being tested, causing damage to parts and equipment. If the first spring 163 is compressed due to the incorrect meshing, If it is compressed, the slide body 12 will not move to the preset position, so that the grating ruler 13 will feedback incorrect position information. The slide body 12 will move backward a short distance at this time, rotate the test gear part and the standard gear part 2 by a small angle, and repeat the feeding action until the standard gear part 2 and the test gear part are correctly engaged. When the two are correctly engaged, the first spring 163 is not compressed, the slide body 12 will move to the preset position, and the grating ruler 13 will feedback correct position information, and the equipment starts the subsequent detection process, wherein a linear bearing is provided between the guide part 161 and the sliding part 162, and the guide part 161 and the linear bearing are set to two pairs, and their function is to prevent rotation and guide.

[0065] In this embodiment, when performing the detection operation, the test gear part is first fixed on the fixing part 32. It should be noted that a connecting flange 56 is provided between the upward end of the main shaft and the fixing part 32. When the type of the test gear part is changed, the connecting flange 56 can be disassembled and the corresponding fixing part 32 can be replaced. After the test gear part is fixed, the first motor 33 starts working and drives the main shaft to rotate on the inner wall of the first sleeve 3.

[0066] In addition, a slide rail 34 is provided on the second mounting frame 11, and the slide body 12 is slidably installed on the slide rail 34. A second locking cylinder 83 is also provided on one side of the slide rail 34. After the position adjustment of the slide body 12 is completed, the second locking cylinder 83 works, and its end can fix and limit the slide body 12.

[0067] The standard gear component 2 is mounted on the second sleeve 4 on the slide body 12. Specifically, a driven shaft 41 rotatably connected thereto is provided on the inner wall of the second sleeve 4. The standard gear component 2 is fixedly mounted on one end of the driven shaft 41 before testing. After the test gear component is meshed with the standard gear component 2, the first motor 33 drives the standard gear component 2 to rotate. The load element 42 mounted on the slide body 12 applies a load torque to the driven shaft 41 to improve the test effect. In this embodiment, the load element 42 is preferably configured as a servo motor, and its output shaft is directly connected to the downward end of the driven shaft 41.

[0068] Among them, the driving shaft 31 and the first sleeve 3 are main components for testing, and their processing accuracy is relatively high. At the same time, in order to ensure the fit and sealing of the two after installation, a dustproof sealing structure is provided between the first sleeve 3 and the driving shaft 31.

[0069] Specifically, the dustproof sealing structure includes a bead sleeve 5, a flange and a bearing group. The bead sleeve 5 is installed between the active shaft 31 and the fixing member 32. The bead sleeve 5 can ensure the centering installation of the fixing member 32 on the upper end of the active shaft 31. The flange includes a first flange 51 and a second flange 52 respectively installed at the upper and lower ends of the active shaft 31. The bearing group has a total of four bearing members 53, two of which are stacked together to form a group of bearing structures, one group of the bearing members 53 rests on the first flange 51, and the other group of the bearing members 53 rests on the upward end of the second flange 52. The two groups of the bearing members 53 are separated by a spacer 54. Due to the torsional vibration measurement in the single meshing test The test is relatively sensitive to the rotational friction of the active shaft 31 structure. The rotational friction torque of the entire active shaft 31 structure must be small enough. Therefore, the dustproof of the active shaft 31 does not use an oil seal but a labyrinth dustproof. A pulley is provided at the upward end of the active shaft 31 and is connected to the output end of the first motor 33. The first flange 51 and the pulley form a dustproof maze. Similarly, a dustproof spacer 55 and a second flange 52 together form a labyrinth dustproof structure at the downward end of the active shaft 31. A labyrinth structure is provided at both ends of the active shaft 31 for dustproofing, which can effectively prevent floating dust in the air from entering between the active shaft 31 and the first sleeve 3, thereby ensuring the reliability of the entire active shaft 31 during the test.

[0070] In addition, such as Figure 5The figure shows a schematic diagram of the installation structure of the driving shaft 31. In order to further improve the reliability of the test data of the entire test equipment, the main structures of the driving shaft 31 and the driven shaft 41 and the installation and sealing structures of the two are basically the same. The specific installation structure of the driven shaft 41 is also provided with a labyrinth dustproof structure like the driving shaft 31, which ensures the stability of the driving shaft 31 and the driven shaft 41 during movement. The difference is that there is no pulley on one end of the driven shaft 41, but a dustproof ring is used instead. The dustproof ring and the first flange 51 form a dustproof labyrinth structure. At the same time, since the present scheme is a single meshing test, the torsional vibration data of the driven shaft 41 is not required, so no detection device is provided on the driven shaft 41 to monitor the data of the driven shaft 41 during operation. At the same time, since the standard gear part 2 does not need to be frequently disassembled during the test, when installing the standard gear part 2, it is only necessary to use bolts to fix the standard gear part 2 to one end of the driven shaft 41.

[0071] During the rotation of the driving shaft 31, the circular grating disk 61 rotates together with the driving shaft 31, and the circular grating reading head 6 on the bracket 62 is fixed to collect the speed signal of the circular grating disk 61. At the same time, the torsional vibration disk 65 rotates together with the driving shaft 31, and the torsional vibration reading head 64 on the connecting plate 63 collects the angular velocity and related torsional vibration data of the driving shaft 31 during the rotation process. Then, the torsional vibration reading head 64 and the circular grating reading head 6 transmit the relevant data to the host computer system, and the host computer system collects, analyzes and stores the relevant data.

[0072] In order to enable the entire equipment to simultaneously detect long shaft parts such as gear shafts, a top 7 positioning mechanism is also provided on the second mounting frame 11. When working, the top 7 in the top 7 positioning mechanism is used to center the detection gear part. Specifically, the centering device in the top 7 positioning mechanism drives the L-shaped slide 71 to slide on the guide rail 73 on the second mounting frame 11. When the end of the top 7 on the L-shaped slide 71 is fully in contact with the upper center hole on the test gear, the driving device 75 stops moving. At the same time, the first locking cylinder 82 on the second mounting frame 11 will lock the L-shaped slide 71 to ensure the stability of the vertical position of the top 7. A limit block 74 is provided on one side of the L-shaped slide 71 to limit the up and down displacement of the L-shaped slide 71. At the same time, a counterweight block 72 is provided on the limit block 74, so that the top 7 on the L-shaped slide 71 can have sufficient downward pressure in the vertical direction, so that the centering point of the top 7 is better.

[0073] In order to ensure the stability of the horizontal position of the second mounting frame 11 on the frame body 1, a plurality of adjustment components are provided on the lower end of the second mounting frame 11, and the adjustment components include a support rod threadedly matched with the second mounting frame 11 and a flexible pad installed on the end of the support rod. Before the entire equipment starts working, the threaded rod can be rotated to adjust the downward end of the second mounting frame 11 to a horizontal state, which can ensure the stability of the driving shaft 31 and the driven shaft 41 during movement as much as possible. At the same time, the top 7 moving in the vertical direction can also have a good centering effect. During the operation of the entire device, the flexible pad can absorb part of the vibration generated by the frame body 1, thereby ensuring the reliability of the test results of the entire equipment as much as possible.

[0074] During the entire device testing process, the oil spray assembly 84 sprays mist spray onto the standard gear part 2 to lubricate the meshing standard gear part 2 and the detection gear part. At the same time, in order to ensure the installability during the entire equipment testing process, the entire detection equipment is in a closed detection mode. Specifically, the outside world and the inside of the test equipment are relatively isolated by the protective cover 85 on the frame 1, and a safety lock 861 is added to the safety door for automatic control. During the detection process, the safety lock 861 is locked. After the detection process is completed, the safety lock 861 is opened. After the installation door is opened, the tested gear part can be removed from the fixing part 32.

[0075] The fixing member 32 is used to fix the test gear member, and can be set to be detachably fixed by bolts or fixed by a traditional gear fixture. In traditional gear testing equipment, there are many fixtures used to clamp and fix the gear, which are mainly divided into internal expansion fixtures and external expansion fixtures. The internal expansion fixture is used in this solution. Figure 8 and Fig. 9The fixing member 32 includes: a sliding rod 701, a connecting bracket 702, a spring 703, a tensioning sleeve 704, a centering shaft 705 and a base 706. The downward end of the base 706 is installed on the inner side of the dense bead sleeve 5. The sliding rod 701 is slidably installed on the inner wall of the base 706. The connecting bracket 702 and the tensioning sleeve 704 are all installed in the base 706, and the connecting bracket 702, the tensioning sleeve 704 and the sliding rod 701 can slide up and down within a certain range. There is a conical contact between the tensioning sleeve 704 and the centering shaft 705. The spring 703 is arranged between the centering shaft 705 and the connecting bracket 702. The tensioning sleeve 704 slides down to tighten the detection gear part, and the tensioning sleeve 704 moves up to loosen the detection gear part. The centering shaft 705 and the base 706 are connected. The base 706 is fixed to the main shaft by bolts. A driving member is provided that can drive the sliding rod 701 to slide up and down on the inner wall of the active shaft 31, thereby driving the tensioning sleeve 704 to tighten and loosen, thereby realizing the fixation and release of the detection gear member. Specifically, the driving member includes a cylinder member 9 rotatably mounted on the second frame 1 and a push rod 92 slidably mounted inside the active shaft 31. The second frame 1 is provided with a mounting seat 95, and the mounting seat 95 is provided with a rocker rod 91 rotatably connected thereto. One end of the rocker rod 91 is rotatably connected to one end of the cylinder member 9, and the other end of the rocker rod 91 is rotatably connected to the downward end portion of the push rod 92. When the cylinder member 9 is working, it drives the rocker rod 91 to rotate on the mounting seat 95. During the rotation of the rocker rod 91, the push rod 92 is driven to move up and down, thereby driving the sliding rod 701 in the internal tensioning clamp to move up and down, thereby realizing the fixation and release of the detection gear member.

[0076] The specific detection process of the gear parts by the above-mentioned gear detection equipment is as follows:

[0077] The operator correctly places the test gear to be tested on the fixing member 32 for fixing, then closes the safety door 86, the safety lock 861 is automatically locked, and presses the start button 862;

[0078] If the test gear part is a long shaft part of the gear shaft type, the driving device 75 is activated first after startup, and the L-shaped slide 71 slides downward from the original position until the top 7 is fully in contact with the center hole above the test gear part. After the contact, the L-shaped slide 71 stops. If the workpiece to be tested is not a long shaft workpiece but a disc workpiece, the top 7 is not required to shape and position the test gear part, and this step is skipped;

[0079] The slide body 12 slides under the action of the second motor 14, so that the test gear part and the standard gear part 2 are correctly meshed. After meshing, the slide body 12 stops. If it is not correctly meshed, the slide body 12 retreats a short distance, and the test gear part rotates a small angle driven by the first motor 33, and the slide body 12 returns to the previous position. After repeating this process and correctly meshing, the slide body 12 stops, and the second locking cylinder 83 locks the guide rail 73. If the test gear part is a long-axis workpiece, the first locking cylinder 82 on the L-shaped slide 71 in S2 is also locked synchronously;

[0080] The oil spraying assembly 84 on the slide body 12 sprays lubricating oil mist onto the standard gear part 2;

[0081] The single meshing detection process starts, the first motor 33 drives the test gear part on the driving shaft 31 to move, and the load motor on the driven shaft 41 provides a reverse load torque. First, the driving shaft 31 rotates clockwise and counterclockwise and drives the test gear part, the standard gear part 2 and the load motor to rotate. During the rotation process, the torsional vibration sensor installed on the driving shaft 31 records the angular acceleration change value, and then the driving shaft 31 slows down and rotates clockwise and counterclockwise again. During the rotation process, the circular grating sensor installed on the driving shaft 31 records the transmission error value. The data acquisition card collects the data and transmits it to the host computer system for analysis to determine the test gear part detection result;

[0082] After the single meshing detection process is completed, the second motor 14 drives the slide body 12 to reset. At this time, the safety door lock is unlocked, and the operator opens the safety door and removes the test gear member on the fixing member 32, and the detection is completed.

[0083] In the above steps, a torsional vibration sensor is used to measure torsional vibration, and a circular grating is used to measure transmission error, so that single meshing detection of gears with load can be realized, as well as gear single meshing detection equipment and methods that meet the needs of automotive high-speed gears. Traditional single meshing gear detection equipment can detect gears with 6 to 7 levels of precision, and the equipment provided in this solution can detect gears with 4 to 5 levels of precision.

[0084] Compared with traditional single-meshing gear testing equipment, the mechanism testing process proposed in this scheme is fully automatic, the equipment has a simple structure, compact space, and easy maintenance. The operator only needs to perform loading and unloading operations. The equipment operation is simple, convenient and safe.

[0085] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A gear detection device for single meshing detection of gears, characterized in that: The gear detection device comprises: Frame; A standard component mechanism, comprising a standard gear component and a load element, wherein the load element is connected to the standard gear component to provide a load torque to the standard gear component; A test piece mechanism, comprising a test assembly and a detection device, wherein the test assembly is mounted on the frame, the test assembly is used to fix the test gear piece, and the detection device is mounted on the test assembly to collect and analyze data during the operation of the test assembly; and A plane slide mechanism is installed on the frame, the standard gear part and the load element are both installed on the plane slide mechanism, and the plane slide mechanism is used to drive the standard gear part to engage with the test gear part so that the test component drives the standard gear part to move.

2. The gear detection device according to claim 1, characterized in that: The frame body is provided with a second mounting frame; The planar slide mechanism comprises: A slide body, slidably mounted on the second mounting frame; A grating ruler is mounted on a downward end surface of the second mounting frame to monitor the position of the slide body; and The second motor is mounted on the frame, the frame is provided with a screw rod rotatably connected thereto, one end of the screw rod is connected to the second motor, the screw rod is provided with a slider threadedly matched therewith, the slider is provided with a guide portion, the guide portion is provided with a sliding portion slidably connected thereto, a first spring is provided between the sliding portion and the slider, and the slide body is connected to the sliding portion.

3. The gear detection device according to claim 2, characterized in that: The test components include: A first sleeve is vertically mounted on the second mounting frame along its axis; A driving shaft is rotatably mounted on the inner wall of the first sleeve, and a fixing piece is provided at one end of the driving shaft to fix the test gear piece; and A first motor is fixedly mounted on the second mounting frame, and an output end of the first motor is connected to one end of the driving shaft to drive the driving shaft to rotate horizontally; and / or, The second mounting frame is provided with a slide rail, and the slide platform body is slidably mounted on the slide rail.

4. The gear detection device according to claim 2, characterized in that: A second sleeve is vertically mounted on the slide body, a driven shaft rotatably connected thereto is disposed on the inner wall of the second sleeve, the standard gear member is mounted on an upward end of the driven shaft, the load element is mounted on the slide body, and an output end of the load element is connected to a downward end of the driven shaft.

5. The gear detection device according to claim 3, characterized in that: A dustproof sealing structure is provided between the first sleeve and the driving shaft; The dustproof sealing structure comprises: A bead sleeve installed between the driving shaft and the fixing member; A flange member, comprising a first flange and a second flange, wherein the first flange and the second flange are respectively mounted on the upper and lower ends of the first sleeve; and, A bearing group, comprising four bearing members arranged between the first sleeve and the driving shaft, wherein the four bearing members are divided into two groups, the upper and lower groups, the ends of the upper and lower groups of bearing members are respectively attached to one end of the first flange and the second flange, and a spacer support is arranged between the two groups of bearing members; A dustproof ring is further provided on a side of the second flange corresponding to the driving shaft; and / or, The driving shaft is provided with a connecting flange, and the fixing member is installed on the connecting flange.

6. The gear detection device according to claim 5, characterized in that: The detection device comprises: The circular grating sensor comprises a circular grating reading head and a circular grating disk, the second flange is provided with a bracket, the circular grating reading head is mounted on the bracket, and the circular grating disk is fixedly mounted on the driving shaft corresponding to the circular grating reading head; The torsional vibration sensor comprises a torsional vibration reading head and a torsional vibration disk, wherein the bracket is provided with a connecting plate, the torsional vibration reading head is mounted on the connecting plate, and the torsional vibration disk is fixedly mounted on the driving shaft; and The host computer system is connected to the torsional vibration reading head and the circular grating reading head to collect and analyze the motion data of the driving shaft.

7. The gear detection device according to claim 6, characterized in that: The second mounting frame is also provided with a top positioning mechanism: The top positioning mechanism comprises: top notch; A guide installation structure, wherein the guide installation mechanism comprises an L-shaped slide and a counterweight block, a guide rail is provided on a vertical side of the second mounting frame facing outward, the L-shaped slide is slidably installed on the guide rail, a limit block is provided at a vertical end of the L-shaped slide, the counterweight block is connected to the limit block, and the top is fixedly installed on the L-shaped slide in a vertical shape corresponding to the end of the driving shaft; and A driving device is installed on the second mounting frame, and one end of the driving device is connected to the L-shaped slide to drive the L-shaped slide to move on the guide rail.

8. The gear detection device according to claim 7, characterized in that: An adjustment component is provided on a downward horizontal end portion of the second mounting frame: The adjustment assembly comprises a plurality of threaded support rods mounted on a lower end of the second mounting frame, and a buffer pad is provided on an end of the plurality of threaded support rods that contacts the frame body; and / or, The second mounting frame is provided with a first locking cylinder to lock and limit the L-shaped slide, and the slide rail is provided with a second locking cylinder to lock the slide body.

9. The gear detection device according to claim 8, characterized in that: The slide body is provided with an oil injection assembly to lubricate the standard gear parts and the detection gear.

10. The gear detection device according to claim 8, characterized in that: The frame is provided with a protective cover, the protective cover is provided with a safety door and a start button for controlling the start and stop of the entire device, and the safety door is provided with a safety lock.

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