CN212410064U - Gear meshing parameter adjusting and measuring device and system - Google Patents
Gear meshing parameter adjusting and measuring device and system Download PDFInfo
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- CN212410064U CN212410064U CN202021848793.XU CN202021848793U CN212410064U CN 212410064 U CN212410064 U CN 212410064U CN 202021848793 U CN202021848793 U CN 202021848793U CN 212410064 U CN212410064 U CN 212410064U
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Abstract
The utility model provides a gear engagement parameter is transferred and is surveyed device and system, the device includes: the box body comprises a first side wall and a second side wall which are oppositely arranged and provided with mounting holes; the loading shaft assembly comprises a loading shaft and two first fixing pieces, the two first fixing pieces are respectively arranged in the two mounting holes, two ends of the loading shaft are respectively in rotary connection with the two first fixing pieces, and the driven gear is arranged on the loading shaft; the driving shaft assembly comprises a driving shaft and two second fixing pieces, the two second fixing pieces are respectively arranged in the two mounting holes, two ends of the driving shaft are respectively in rotary connection with the two second fixing pieces, and the driving gear is arranged on the driving shaft; and a fine adjustment component for adjusting the center distance and/or the parallelism between the driving shaft and the driving shaft. The utility model provides a can carry out the gear engagement parameter of analysis to gear engagement NVH influence law to at least one gear engagement factor and transfer and survey the device, can give the improvement of derailleur assembly NVH performance and greatly help.
Description
Technical Field
The utility model relates to a derailleur technical field, in particular to gear engagement parameter is transferred and is surveyed device and system.
Background
The comfort of the passenger car is highly valued by customers, the noise, vibration and harshness (NVH) of the transmission assembly of the passenger car are the key points for control, and the meshing of the gears is the key point for generating the NVH of the transmission assembly.
Existing manufacturing techniques have incorporated meshing factors for gears: the tooth direction error, the tooth shape error, the radial run-out error, the center distance variation error and the parallelism error are controlled to be in micron-scale precision. The prior art is also well established: a key factor contributing to transmission NVH is the meshing of the gears.
The existing test method and analysis software for NVH of the passenger car transmission are also mature. But the existing technical problems are as follows: even if the measured gear meshing NVH does not accord with the measured gear meshing NVH, the meshing factors are controlled within micron-scale precision, and particularly, which specific factor of the gear meshing is the key of influence is difficult to determine; this brings difficulty in improvement of the problem. The reason for this is lack of an analysis device suitable for the rule of influence of the meshing factors on the gear meshing NVH.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at providing a can carry out the gear engagement parameter of analysis to at least one gear engagement factor to gear engagement NVH influence law and transfer survey device and system.
A gear mesh parameter tuning device for testing a pair of meshed gears including a drive gear and a driven gear, the device comprising:
the box body comprises a first side wall and a second side wall which are oppositely arranged, and mounting holes are formed in the opposite positions of the first side wall and the second side wall;
the loading shaft assembly comprises a loading shaft and two first fixing pieces, the two first fixing pieces are respectively arranged in the mounting holes of the first side wall and the second side wall, two ends of the loading shaft are respectively in rotary connection with the two first fixing pieces, and the driven gear is arranged on the loading shaft;
the driving shaft assembly comprises a driving shaft and two second fixing pieces, the two second fixing pieces are respectively arranged in the mounting holes of the first side wall and the second side wall, two ends of the driving shaft are respectively in rotary connection with the two second fixing pieces, and the driving gear is arranged on the driving shaft; and
and the fine adjustment component is connected between the driving shaft assembly and the loading shaft assembly so as to adjust the center distance and/or the parallelism between the driving shaft and the driving shaft.
Further, the fine adjustment part is connected between the first fixing piece and the second fixing piece in the two mounting holes.
Further, the fine adjustment component is a micrometer screw rod, and the micrometer screw rod is rotatably arranged on the second fixing piece and is in threaded connection with the first fixing piece.
Furthermore, lubricating oil is arranged at the inner bottom of the box body and contacts the pair of meshing gears, and the bottom of the mounting hole is higher than the liquid level of the lubricating oil.
Furthermore, the loading shaft and the driving shaft are respectively provided with a gear detachable fixing structure, and the driving gear and the driven gear are fixed through the corresponding gear detachable fixing structures.
Further, the detachable gear fixing structure is a spline.
Furthermore, the first fixing piece and the second fixing piece are both detachably and fixedly connected with the box body through bolts.
Further, an assembly gap is arranged between the first fixing piece and the second fixing piece, and the assembly gap is larger than the design tolerance of the center distance and/or the parallelism of the driving gear and the driven gear.
Furthermore, an adjusting guide structure is arranged between the first fixing piece and the second fixing piece.
Further, the adjusting and guiding structure comprises a sliding groove and a sliding block which are matched with each other.
The embodiment of the utility model provides a gear engagement parameter is transferred and is surveyed system is still provided, including NVH detection device, still include foretell gear engagement parameter and transfer and survey the device, NVH detection device monitors the driving gear of gear engagement parameter transfer and survey the device and driven gear meshing's NVH performance.
Compared with the prior art: through setting up loading axle and drive shaft, and make loading axle and drive shaft dress in the box, make driving gear and driven gear install respectively on loading axle and drive shaft, in addition still set up fine setting part between drive shaft subassembly and loading axle subassembly, in order to utilize fine setting part to finely tune centre-to-centre spacing and the depth of parallelism between drive shaft and the loading axle, and then finely tune centre-to-centre spacing and the depth of parallelism of driving gear and driven gear, in order to explore the influence law of analysis centre-to-centre spacing change error and depth of parallelism error to gear engagement NVH, thereby the analysis goes out the more key factor of NVH performance influence and influences law, thereby improve very big help for the improvement of derailleur assembly NVH performance.
Drawings
Fig. 1 is a perspective view of an external structure of a gear engagement parameter adjusting and measuring device according to a first embodiment of the present invention;
fig. 2 is a perspective view of the internal structure of the gear meshing parameter adjusting and measuring device according to the first embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is an enlarged view at I in fig. 3.
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example one
Referring to fig. 1-4, a gear engagement parameter adjusting and measuring device according to a first embodiment of the present invention is shown, for testing a pair of engaged gears (i.e. gear pair) including a driving gear 201 and a driven gear 202, the device includes a box 10, and a loading shaft assembly 20, a driving shaft assembly 30 and a fine adjustment component 40 disposed on the box 10, wherein:
the box 10 includes a first side wall 11 and a second side wall 12 which are oppositely arranged, the first side wall 11 and the second side wall 12 are both provided with mounting holes 13 at opposite positions, and the mounting holes 13 are specifically through holes. The loading shaft assembly 20 includes a loading shaft 21 and two first fixing members 22, the two first fixing members 22 are respectively disposed in the mounting holes 13 of the first side wall 11 and the second side wall 12, that is, one first fixing member 22 is respectively disposed in the mounting holes 13 on both sides of the box 10, both ends of the loading shaft 21 are respectively rotatably connected with the two first fixing members 22 through first bearings 211, and the driven gear 202 is disposed on the loading shaft 21. The driving shaft assembly 30 includes a driving shaft 31 and two second fixing members 32, the two second fixing members 32 are respectively disposed in the mounting holes 13 of the first side wall 11 and the second side wall 12, that is, one second fixing member 32 is respectively disposed in the mounting holes 13 at two sides of the box body 10, so that a first fixing member 22 and one second fixing member 32 are disposed in each mounting hole 13, two ends of the driving shaft 31 are respectively rotatably connected with the two second fixing members 32 through second bearings 311, and the driving gear 201 is disposed on the driving shaft 31. The fine adjustment unit 40 is connected between the driving shaft 31 assembly 30 and the loading shaft 21 assembly 20 to adjust the center distance and/or the parallelism between the driving shaft 31 and the loading shaft 21, thereby adjusting the center distance and the parallelism of the driving gear 201 and the driven gear 202. Wherein the first fixing member 22 and the second fixing member 32 are both fixing plates.
Specifically, in the present embodiment, two fine adjustment parts 40 are connected between the first fixing part 22 and the second fixing part 32 in the two mounting holes 13, and one fine adjustment part 40 is connected up and down, and when the fine adjustment part 40 is connected between the middle parts of the first fixing part 22 and the second fixing part 32, only one fine adjustment part 40 may be connected. The fine adjustment component 40 is located outside the box body for adjustment, and the fine adjustment component 40 may be a bolt, a micrometer screw, and the like, and the embodiment is preferably a micrometer screw, and the micrometer screw is rotatably disposed on the second fixing member 32 and is screwed with the first fixing member 22. The distance between first mounting 22 and the second mounting 32 is finely tuned through rotating the thousandth screw rod promptly, and then center-to-center spacing and the depth of parallelism of adjustment driving gear 201 and driven gear 202, specifically be when the thousandth screw rod of box 10 both sides rotates the same number of turns, because the distance that both sides were adjusted is the same, then realize adjusting the center-to-center spacing of driving gear 201 and driven gear 202, when the thousandth screw rod rotation number of turns of box 10 both sides is inequality, because the distance that both sides were adjusted is inequality, then realize adjusting the depth of parallelism of driving gear 201 and driven gear 202, and then explore the influence law of the change (being the error) of center-to-center spacing and depth of parallelism to gear engagement NVH performance. Due to the fact that the dial screw is adopted for adjustment, the adjustment requirement of the meshing factors under micron-sized accuracy can be met, and therefore the influence rule of the meshing factors on the NVH of the gear under the micron-sized manufacturing accuracy control condition is analyzed.
Wherein, the inner bottom of the box 10 is provided with a lubricating oil (not shown), the lubricating oil contacts a pair of meshing gears, namely at least one of the driving gear 201 and the driven gear 202 contacts the lubricating oil, in order to avoid the leakage of the lubricating oil, the bottom of the mounting hole 13 is higher than the liquid level of the lubricating oil, and two ends of the loading shaft 21 are also connected with two first fixing parts 22 through first oil seals 212 respectively, two ends of the driving shaft 31 are rotatably connected with two second fixing parts 32 through second oil seals 312 respectively, and the mounting hole 13 where the first fixing part 22 and the second fixing part 32 are located is blocked after combination. The driving gear 201 and the driven gear 202 are arranged in the box body 10 to be tested, gear lubricating oil is added into the box body 10, the actual operation environment of the gears in the gear box is simulated, and the reliability of test analysis is guaranteed.
In addition, in order to make the testing device have higher universality and realize the exploration and analysis of the NVH influence rule of more gear meshing factors, the testing device is also designed as follows: the first fixing member 22 and the second fixing member 32 are both detachably and fixedly connected to the housing 10 through bolts, so that the first fixing member 22 and the second fixing member 32 are both convenient to detach and replace, and meanwhile, an assembly gap is formed between the first fixing member 22 and the second fixing member 32, and the assembly gap needs to be larger than the design tolerance of the center distance and the parallelism of the driving gear 201 and the driven gear 202. Because the design tolerances of the center distance and the parallelism of the driving gear 201 and the driven gear 202 are both micron-sized, and the assembly clearance of bolt assembly is much larger than the design tolerance, the micron-sized adjustment requirement can still be met after the first fixing piece 22 and the second fixing piece 32 are fixed by the bolts. The loading shaft 21 and the driving shaft 31 are both provided with a detachable gear fixing structure, and the driving gear 201 and the driven gear 202 are fixed by the corresponding detachable gear fixing structure, wherein the detachable gear fixing structure is specifically a spline, that is, the driving gear 201 and the driven gear 202 are fixed by the spline.
It should be noted that, because the first fixing member 22, the second fixing member 32, the driving gear 201 and the driven gear 202 are all convenient to disassemble and replace, for a plurality of pairs of meshed gears with the same center distance (i.e. the same model), the pairs of meshed gears can be sequentially installed on the driving gear 201 and the driven gear 202 to be explored and analyzed one by one, and then the influence rule of the tooth direction error, the tooth shape error and the radial run-out error on the gear meshing NVH is explored and analyzed; and a plurality of pairs of meshed gears with different center distances (namely different models) can realize universal test by replacing the first fixing part 22 and the second fixing part 32.
In addition, in order to make the adjustment more accurate, an adjustment guide structure 23 is disposed between the first fixing member 22 and the second fixing member 32, the adjustment guide structure 23 includes a sliding slot 231 and a sliding block 232, which are engaged with each other, in this embodiment, the sliding slot 231 is disposed on the second fixing member 32, the sliding block 232 is disposed on the first fixing member 22, and the sliding block 232 is embedded in the sliding slot 231 along the center distance direction of the driving gear 201 and the driven gear 202 and is slidably engaged with the sliding slot 231 to form the guide.
In the specific test: one end of the driving shaft 31 is connected with a power source (such as an engine, not shown in the figure), the driving shaft 31 runs under the driving of the power source according to set test parameters (including input rotating speed and loading torque) so as to drive the driving gear 201 and the driven gear 202 to run, and the NVH performance of the current gear meshing is monitored; then, the center distance and the parallelism of the driving gear 201 and the driven gear 202 are finely adjusted through the fine adjustment component 40, and further, the influence rule of the center distance variation error and the parallelism error on the gear engagement NVH is explored and analyzed; and then the other pair of meshed gears of the same model can be replaced, the test is carried out in the same mode, and because manufacturing deviation (including tooth direction error, tooth shape error and radial run-out error) exists between the two pairs of meshed gears of the same model, in the process of repeatedly testing a plurality of pairs of meshed gears of the same model, the influence rule of the tooth direction error, the tooth shape error and the radial run-out error on the gear meshing NVH can be explored and analyzed. During specific implementation, the traditional NVH detection device for testing the NVH of the gearbox can be adopted to monitor the NVH performance of gear meshing of the device, specifically, a vibration sensor is arranged on the box body 10, and a noise sensor or a noise meter is arranged around the box body 10, so that the vibration condition and the noise condition during gear meshing are collected, and therefore NVH detection is carried out.
To sum up, the gear meshing parameter adjusting and measuring device according to the above embodiment of the present invention is provided with the loading shaft 21 and the driving shaft 31, and the loading shaft 21 and the driving shaft 31 are installed in the housing 10, so that the driving gear 201 and the driven gear 202 are installed on the loading shaft 21 and the driving shaft 31, respectively, and further a fine adjustment component 40 is installed between the driving shaft 31 component 30 and the loading shaft 21 component 20, so as to adjust the center distance and the parallelism between the driving shaft 31 and the loading shaft 21 by using the fine adjustment component 40, and further adjust the center distance and the parallelism between the driving gear 201 and the driven gear 202, so as to explore and analyze the influence rules of the center distance variation error and the parallelism error on the gear meshing NVH, and to realize the exploration and analysis of the influence rules of the tooth direction error, the tooth shape error, and the radial runout error on the gear meshing NVH, so as to analyze the most critical factors and influence rules on the NVH performance among various meshing factors, thereby greatly contributing to the improvement of the NVH performance of the transmission assembly.
Example two
The utility model discloses the second embodiment still provides a gear engagement parameter modulation system, including NVH detection device and above-mentioned first embodiment gear engagement parameter modulation device, NVH detection device is used for monitoring the driving gear 201 and the NVH performance of driven gear 202 meshing of gear engagement parameter modulation device.
Wherein, NVH detection device can select for use the NVH testing arrangement of tradition to gearbox NVH test, specifically can be for setting up vibration sensor on box 10 and arranging noise sensor or noise meter around box 10 to vibration condition and noise condition when meshing the gear are gathered, thereby can carry out the NVH and detect.
To sum up, the gear meshing parameter adjusting and measuring system of the above embodiment of the present invention is provided with the loading shaft 21 and the driving shaft 31, and the loading shaft 21 and the driving shaft 31 are installed in the box 10, so that the driving gear 201 and the driven gear 202 are installed on the loading shaft 21 and the driving shaft 31, and further a fine adjustment component 40 is installed between the driving shaft 31 component 30 and the loading shaft 21 component 20, so as to adjust the center distance and the parallelism between the driving shaft 31 and the loading shaft 21 by using the fine adjustment component 40, and further adjust the center distance and the parallelism of the driving gear 201 and the driven gear 202, so as to explore and analyze the influence rules of the center distance variation error and the parallelism error on the gear meshing NVH, and can realize the exploration and analysis of the influence rules of the tooth direction error, the tooth shape error and the radial runout error on the gear meshing NVH by replacing different meshing gears, thereby being able to analyze the most critical factors and influence rules on the NVH performance among various meshing factors, thereby greatly contributing to the improvement of the NVH performance of the transmission assembly.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A gear meshing parameter adjusting and testing device is used for testing a pair of meshing gears, wherein the pair of meshing gears comprises a driving gear and a driven gear, and the device comprises:
the box body comprises a first side wall and a second side wall which are oppositely arranged, and mounting holes are formed in the opposite positions of the first side wall and the second side wall;
the loading shaft assembly comprises a loading shaft and two first fixing pieces, the two first fixing pieces are respectively arranged in the mounting holes of the first side wall and the second side wall, two ends of the loading shaft are respectively in rotary connection with the two first fixing pieces, and the driven gear is arranged on the loading shaft;
the driving shaft assembly comprises a driving shaft and two second fixing pieces, the two second fixing pieces are respectively arranged in the mounting holes of the first side wall and the second side wall, two ends of the driving shaft are respectively in rotary connection with the two second fixing pieces, and the driving gear is arranged on the driving shaft; and
and the fine adjustment component is connected between the driving shaft assembly and the loading shaft assembly so as to adjust the center distance and/or the parallelism between the driving shaft and the driving shaft.
2. The gear mesh parameter adjusting and measuring device according to claim 1, wherein the fine adjustment member is connected between the first fixing member and the second fixing member in each of the two mounting holes.
3. The gear engagement parameter adjusting and measuring device according to claim 2, wherein the fine adjustment component is a micrometer screw, and the micrometer screw is rotatably arranged on the second fixing member and is in threaded connection with the first fixing member.
4. The gear engagement parameter adjusting and measuring device according to claim 1, wherein a lubricant is provided at an inner bottom portion of the case, the lubricant contacts the pair of the engagement gears, and a bottom portion of the mounting hole is higher than a liquid level of the lubricant.
5. The device for adjusting and measuring gear engagement parameters according to claim 1, wherein a gear detachable fixing structure is arranged on each of the loading shaft and the driving shaft, and the driving gear and the driven gear are fixed through the corresponding gear detachable fixing structures.
6. The gear engagement parameter adjusting and measuring device according to claim 5, wherein the gear detachable fixing structure is a spline.
7. The gear engagement parameter adjusting and measuring device according to claim 1, wherein the first fixing member and the second fixing member are detachably and fixedly connected to the box body through bolts.
8. The device for adjusting and measuring gear meshing parameters of claim 7, wherein an assembly gap is arranged between the first fixing piece and the second fixing piece, and the assembly gap is larger than the design tolerance of the center distance and/or the parallelism of the driving gear and the driven gear.
9. The gear engagement parameter adjusting and measuring device according to any one of claims 1 to 3, wherein an adjusting guide structure is arranged between the first fixing member and the second fixing member, and the adjusting guide structure comprises a sliding groove and a sliding block which are matched with each other.
10. A gear meshing parameter adjusting and testing system comprises an NVH detection device and is characterized by further comprising the gear meshing parameter adjusting and testing device according to any one of claims 1 to 9, wherein the NVH detection device monitors the NVH performance of meshing between a driving gear and a driven gear of the gear meshing parameter adjusting and testing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848793.XU CN212410064U (en) | 2020-08-28 | 2020-08-28 | Gear meshing parameter adjusting and measuring device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848793.XU CN212410064U (en) | 2020-08-28 | 2020-08-28 | Gear meshing parameter adjusting and measuring device and system |
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| Publication Number | Publication Date |
|---|---|
| CN212410064U true CN212410064U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021848793.XU Active CN212410064U (en) | 2020-08-28 | 2020-08-28 | Gear meshing parameter adjusting and measuring device and system |
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| Country | Link |
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| CN (1) | CN212410064U (en) |
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2020
- 2020-08-28 CN CN202021848793.XU patent/CN212410064U/en active Active
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Address after: No. 169, Meilin street, economic and Technological Development Zone, Nanchang City, Jiangxi Province Patentee after: Magna powertrain (Jiangxi) Co.,Ltd. Address before: No. 169, Meilin street, economic and Technological Development Zone, Nanchang City, Jiangxi Province Patentee before: GETRAG (JIANGXI) TRANSMISSION Co.,Ltd. |
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