CN111366062A - Cylindrical gear helix angle detection device and detection calculation method - Google Patents
Cylindrical gear helix angle detection device and detection calculation method Download PDFInfo
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- CN111366062A CN111366062A CN202010357339.2A CN202010357339A CN111366062A CN 111366062 A CN111366062 A CN 111366062A CN 202010357339 A CN202010357339 A CN 202010357339A CN 111366062 A CN111366062 A CN 111366062A
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- 238000001514 detection method Methods 0.000 title claims abstract description 45
- 238000004364 calculation method Methods 0.000 title claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 210000003781 tooth socket Anatomy 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
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Abstract
The invention discloses a cylindrical gear helix angle detection device, which belongs to the technical field of gears and comprises a rotating body, an axial positioning block, a turning rod, at least two tooth socket positioning rods and steel balls with the same number as the tooth socket positioning rods; the rotating body is contacted with the top circle of the gear to be measured, the axial positioning block is contacted with one end face of the gear to be measured, and the axial positioning block is arranged on the rotating body in a planar sliding connection mode and can be fixed on the rotating body when sliding to any position; the steering rod is rotationally arranged on the rotating body, so that different included angles are formed between the steering rod and the axial positioning block when the steering rod rotates on the surface of the rotating body; the tooth space positioning rod penetrates through the rotating body and then is fixedly connected to the rotating rod, and the steel ball capable of being inserted between two adjacent gear teeth of the gear to be detected is installed at one end, facing the gear to be detected, of the tooth space positioning rod. The device is convenient, efficient and accurate in detection.
Description
Technical Field
The invention belongs to the technical field of cylindrical gears, and particularly relates to a cylindrical gear helix angle detection device and a detection calculation method.
Background
The spiral angle is an important parameter of the gear, the existing simple measuring method of the spiral angle is to measure the tooth mark of the tooth top rolling on the paper through a protractor, and then the pitch circle spiral angle is obtained by the gear calculation formula and the conversion calculation of the tooth top circle spiral angle. With the conventional method, the operation is complicated and rigid, the spiral angle detection efficiency is extremely low, and the measured gear spiral angle has poor precision, so that the high precision requirement of the spiral angle of the gear meshed with the gear cannot be met, and therefore a new measuring device and a measuring method for the spiral angle of the cylindrical gear are urgently needed to be designed.
Disclosure of Invention
The invention aims to solve the technical problems and provides a cylindrical gear helix angle detection device and a detection calculation method.
The technical scheme of the invention is as follows: the invention discloses a cylindrical gear helical angle detection device which comprises a rotating body, an axial positioning block, a turning rod, at least two tooth socket positioning rods and steel balls, wherein the number of the steel balls is consistent with that of the tooth socket positioning rods; wherein
The rotating body is in contact with the top circle of the gear to be measured, the axial positioning block is in contact with one end face of the gear to be measured, and the axial positioning block is installed on the rotating body in a planar sliding connection mode and can be fixed on the rotating body when sliding to any position; the steering rod is rotationally arranged on the rotating body, so that different included angles are formed between the steering rod and the axial positioning block when the steering rod rotates on the surface of the rotating body; the tooth space positioning rod penetrates through the rotating body and then is fixedly connected to the rotating rod, and the steel ball capable of being inserted between two adjacent gear teeth of the gear to be detected is installed at one end, facing the gear to be detected, of the tooth space positioning rod.
Based on the detection device, the invention also provides a detection and calculation method of the pitch angle of the reference circle of the cylindrical gear, which is carried out according to the following steps:
s1, measuring the spiral angle at the contact point of the steel ball by using a cylindrical gear spiral angle detection device, which comprises the following specific steps:
1) placing a rotating body on the top of a gear to be measured, and then adjusting the installation position of an axial positioning block on the rotating body, wherein the axial positioning block is required to be attached to one end face of the gear during position adjustment; or adjusting the positions of the axial positioning block and the axial positioning auxiliary block to enable the axial positioning auxiliary block to be attached to one end face of the gear;
2) rotating the turning rod on the rotating body so that the steel balls on all the tooth space positioning rods are all inserted into the same tooth space of the gear to be measured, and then fixing the turning rod on the rotating body;
3) after the cylindrical gear helical angle detection device is taken down from a gear to be detected, an included angle between an axial positioning block and a turning rod is measured by adopting a universal angle ruler, and the included angle is the helical angle at the contact point between a steel ball and the gear;
s2, calculation of the pitch helix angle of the cylindrical gear:
and calculating according to the previously measured spiral angle at the steel ball contact point, the actual value of the common normal line length of the gear to be measured, the number of the cross-measuring teeth and the diameter of the steel ball to obtain the pitch circle spiral angle of the gear to be measured.
The invention has the beneficial effects that: the helical angle detection device for the cylindrical gear provided by the invention has the advantages that the helical angle at the steel ball contact point on the cylindrical gear is directly selected for detection to obtain the helical angle at the contact point, then the conversion is carried out according to the relationship between the helical angles on different circumferences of the cylindrical gear and the helical angle of the gear reference circle to indirectly obtain the helical angle of the reference circle of the cylindrical gear, and the helical angle value at one steel ball contact point can be detected through the detection device. Therefore, compared with the existing detection equipment and method, the spiral angle detection device is simple and easy to operate, environment-friendly and clean, under the condition of ensuring the accuracy of the spiral angle, a large amount of manpower and material resources and detection cost of a machine tool are saved, an operator saves labor and time, and the processing efficiency is improved in a multiplied way.
Drawings
Fig. 1 is a top view of a cylindrical gear helix angle detection device with a universal angle ruler in the embodiment of the invention.
FIG. 2 is a front view of the helical angle detecting device of a cylindrical gear with a universal angle ruler in the embodiment of the invention.
FIG. 3 is a bottom view of the helical angle detecting device of the cylindrical gear with the universal angle ruler in the embodiment of the invention.
FIG. 4 is a left side view of the helical angle detecting device of a cylindrical gear with a universal angle ruler in the embodiment of the present invention.
FIG. 5 is a right side view of the helical angle detecting device of a cylindrical gear with a universal angle ruler in the embodiment of the present invention.
Fig. 6 is a perspective view of a helical angle detection device of a spur gear in an embodiment of the present invention.
Fig. 7 is a perspective view of a cylindrical gear helix angle detection device with a universal angle ruler in the embodiment of the invention.
Fig. 8 is a schematic view of the helical angle detection device for a cylindrical gear according to the embodiment of the present invention when measuring a gear on a gear shaft.
Fig. 9 is a front view of the spur gear helix angle detection apparatus according to the embodiment of the present invention when measuring a thin gear.
Fig. 10 is a schematic view of a cylindrical gear helix angle detection device according to an embodiment of the present invention when measuring a thin gear.
Element number description: 1. a rotating body; 2. axial positioning blocks; 3. a hexagon socket head cap screw; 4. a steering rod; 5. a rotating positioning block; 6. connecting a screw rod; 7. fastening a nut; 8. a centering screw; 9. sleeving; 10. a butterfly nut; 11. a seam positioning rod; 12. a tooth socket positioning rod; 13. an anti-drop nut; 14. a universal angle ruler; 15. an axial positioning auxiliary block; 16. a steel ball; 17. and (4) a boss.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
the embodiment discloses a cylindrical gear helix angle detection device, the structural principle of which is shown in fig. 1 to 5, and the cylindrical gear helix angle detection device mainly comprises a rotating body 1, wherein the rotating body 1 is of a plate-shaped structure, and a protruding end on one side of a plate similar to a cam can be flattened during specific manufacturing. The rotating body 1 of the embodiment is provided with the axial positioning block 2, and the axial positioning block 2 is slidably mounted on the side surface of the flattened side of the rotating body 1, so that the axial positioning block 2 is perpendicular to the rotating body 1 to better adapt to the end surface reference positioning of the cylindrical gear; in order to adjust the position of the axial positioning block 2 more flexibly to adapt to cylindrical gears with different structures and sizes, the axial positioning block 2 can be slidably connected and installed on the side surface of the rotating body 1 in two mutually perpendicular directions, as shown in fig. 4 and 6 in particular, the axial positioning block 2 is fastened with the rotating body 1 through the hexagon socket head cap screw 3, the hexagon socket head cap screw 3 is provided with a plurality of screw holes on the axial positioning block 2 and is arranged in a line, the axial positioning block 2 can slide in one direction on the rotating body 1 by changing the screw holes on the axial positioning block 2 through the hexagon socket head cap screw 3, and is fastened through the hexagon socket head cap screw 3 after sliding in place. Furthermore, the rotary body 1 and the axial positioning block 2 may be respectively provided with a T-shaped sliding slot (not shown) and a T-shaped bolt (not shown) to realize the sliding of the axial positioning block 2 in one linear direction, and the sliding may be fixed by the T-shaped bolt to any position. Of course, the present embodiment has other ways to realize the sliding connection and fixation of the axial positioning block 2 on the rotating body 1, and those skilled in the art can select the connection method adaptively, and the present invention is not limited in particular. Similarly, in another direction perpendicular to the aforementioned linear direction, i.e. the vertical direction in fig. 4, the axial positioning block 2 is provided with a vertical sliding groove, which is used to cooperate with the bolt to realize the vertical sliding and fixing of the axial positioning block 2 on the rotating body 1. For thinner gears, an axial positioning auxiliary block 15 may be further added on the axial positioning block 2, and the axial positioning auxiliary block 15 may be slidably connected to a surface of the axial positioning block 2 facing the rotating body 1 through the sliding groove and the bolt.
Meanwhile, as shown in fig. 1, the rotating body 1 of the present embodiment is oppositely provided with two fan-shaped holes, and the two fan-shaped holes are oppositely arranged to form a butterfly wing-shaped symmetrical structure. The surface of the rotating body 1 is rotatably provided with a turning rod 4, the turning rod 4 is of a rectangular strip-shaped structure, one end of the turning rod 4 faces the axial positioning block 2 and the turning rod 4 cannot be in interference contact with the axial positioning block 2 when rotating, and the turning rod 4 rotates around a certain point of the turning rod 4 on the surface of the rotating body 1, so that different included angles are formed between the turning rod 4 and the axial positioning block 2 when the surface of the rotating body 1 rotates, and the included angles directly relate to the measurement of the spiral angle. Further, as shown in fig. 6, the turning rod 4 has two bosses 17 protruding toward one side surface of the rotating body 1, the two bosses 17 are respectively arranged at two ends of the turning rod 4 and extend into the fan-shaped hole, one end surface of the boss 17 in the length direction of the turning rod 4 is a curved surface in sliding fit with the arc-shaped hole wall of the fan-shaped hole, and the other end of the boss 17 in the length direction of the turning rod 4 is in a sharpened isosceles triangle shape so as to play a certain guiding role in the rotating motion of the turning rod 4, so that the rotating motion is more stable and reliable. In addition, the turning rod 4 can realize locking connection through a centering screw 8, a sleeve 9, a butterfly nut 10 and a seam-riding positioning rod 11, the centering screw 8 is fixedly connected to the rotating body 1, the turning rod 4 is sleeved on the centering screw 8 and can rotate around the axis of the centering screw 8, the sleeve 9 is directly sleeved on the centering screw 8 exposed out of the turning rod 4 and then is pressed by the butterfly nut 10 screwed on the centering screw 8, and the turning rod 4 is fixed.
In addition, the turning rod 4 of the present embodiment is further provided with a turning positioning block 5 slidably mounted on the turning rod 4, specifically, at least one strip hole is formed in the length direction of the turning rod 4, the strip hole penetrates through the boss 17 on the turning rod 4, at least two turning positioning blocks 5 are slidably disposed in the strip hole, the turning positioning blocks 5 can be fixed on the turning rod 4 when sliding to any position so as to adjust the positions of the two steel balls 16, and the tooth space positioning rod 12 is mounted on the turning positioning block 5. During specific manufacturing, one end of the turning positioning block 5 is connected with the turning rod 4 into a whole through the connecting screw rod 6 and the fastening nut 7, the specific connecting structure can be various, technicians can design and select the connecting structure in an adaptive manner, and how the connecting screw rod 6 is fixedly connected is not described in detail in the embodiment. Specifically, as shown in fig. 2, the other end of the turning positioning block 5 is provided with a tooth space positioning rod 12 parallel to the turning rod 4, the tooth space positioning rod 12 is provided with a steel ball 16 capable of being inserted between two adjacent gear teeth towards one end of the gear to be measured, an anti-dropping nut 13 is installed at one end of the tooth space positioning rod 12 departing from the steel ball 16, and the tooth space positioning rod 12 can be designed adaptively by a person skilled in the art in the mode of fixing the tooth space positioning rod 12 by the anti-dropping nut 13, and the description. As a specific implementation detail, preferably, the universal angle ruler 14 takes the axial positioning blocks 2 as one reference and the axial positioning blocks 2 as the other reference, and measures, when the measured value is 0 degree, the turning rod 4 is perpendicular to the axial positioning blocks 2, and the direction of the connecting line between the centers of the two steel balls 16 on the turning rod 4 is also perpendicular to the axial positioning blocks 2, so as to facilitate the detection and observation of the reading.
The specific detection steps for the gear helix angle at the contact point of the steel ball 16 are as follows:
1. this detection device inserts between the adjacent two flank profiles (the teeth of a cogwheel) of cylindrical gear through two steel balls 16 on the tooth's socket locating lever 12, reaches the purpose of measuring the helical angle of steel ball 16 contact point department:
1) as shown in fig. 8, after the rotating body 1 is placed on the addendum circle (addendum), the axial positioning block 2 is attached to the axial reference end surface of the gear, i.e., to a reference surface parallel to the gear end surface.
2) When a thin gear with a relatively small thickness is measured, if the actual manufacturing size of the detection device is not enough to ensure that the thin gear is in full reliable contact positioning with the gear to be measured, the positions of the axial positioning block 2 and the axial positioning auxiliary block 15 can be adjusted according to fig. 9 to 10, and the axial positioning auxiliary block 15 is attached to the axial reference end face of the gear. Of course, the method is not only directed to the gear shown in fig. 9, but also can be applied to other gears for detection when the gear structure is appropriate in size.
3) The turning rod 4 of the rotator 1 is rotated to insert the steel balls 16 on the two tooth space positioning rods 12 into the tooth space between the two gear teeth. In order to ensure more accurate measurement, a certain movement amount is required to be reserved in the insertion direction of the steel ball 16 on the tooth socket positioning rod 12 in the tooth socket, that is, after the detection device is installed on the gear to be detected, the steel ball 16 on the tooth socket positioning rod 12 still has a space for further moving towards one side of the tooth root, so as to ensure that the tooth top of the gear to be detected is stably and reliably contacted with the rotating body 1.
4) Turning to pole 4 and passing through centring screw 8, cover 9 and butterfly nut 10 fastening back, the contained angle between turning to pole 4 and axial positioning piece 2 is fixed, furthermore, can also set up a perforation locating lever 11 that inserts simultaneously the axial in centring screw 8 and the rotator 1, perforation locating lever 11 prevents butterfly nut 10 process of compressing tightly, centring screw 8 skids in rotator 1, perforation locating lever 11 here is a common anti-rotation pin structural style promptly, mainly be in order to stop centring screw 8 rotation at the in-process of screwing butterfly nut 10, this embodiment does not detail its structure again, technical personnel in the field should know.
2. After the detection device is taken down from the gear, the position of the axial positioning block 2 is adjusted firstly according to the figure 7, the vertical position adjustment can be carried out, after the detection device is fastened by the hexagon socket head cap screw 3, the axial positioning block 2 and the turning rod 4 can be attached to the corresponding measuring datum plane of the universal angle ruler 14, the universal angle ruler 14 is used for measuring the included angle between the axial positioning block 2 and the turning rod 4, and the included angle is the spiral angle of the steel ball 16 at the contact point of the gear tooth profile. When the measured spiral angle is too small, the reference surface of the axial positioning block 2 interferes with the universal angle ruler 14, and when the measured spiral angle is too large, the universal angle ruler 14 may not measure the steering rod 4, in this case, as shown in fig. 7, the axial positioning block 2 can be properly shifted to the left or right and then fastened with the rotating body 1, and the included angle between the axial positioning block 2 and the steering rod 4 can be measured.
3. Calculation of pitch angle of cylindrical gear:
1) the spiral angle of the steel ball 16 of the detection device measured at the tooth profile contact point, the actual value of the common normal line length of the gear, the actual value of the cross-measurement tooth number and the diameter of the steel ball 16 on the tooth space positioning rod 12 are known parameters, and a person skilled in the art deduces and converts the spiral angle on the pitch circle according to the relation between the spiral angles on different circumferences on the same cylindrical gear and the spiral angle on the pitch circle. Preferably, for the convenience of normal detection, the calculation process can be written into a fixed program for calculation, that is, a "simple calculation program for the helical angle of the cylindrical gear" is designed according to the existing parameters such as the helical angle of the gear on a certain circumference, so that the helical angle can be directly input for calculation after each detection. However, for the calculation of the pitch angle of the pitch circle, there may be a plurality of algorithms based on the above-mentioned series of parameters, and this embodiment does not deduce in detail, and the present invention can be adopted in all the ways that the person skilled in the art can calculate the pitch angle of the pitch circle based on the above-mentioned measured parameters according to the internal correlation characteristics of the various parameters of the gear, and all the ways can be used for calculating the pitch angle of the pitch circle, for example, the calculation formula of one of the parameters of the pitch angle of the gear is:
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A cylindrical gear helix angle detection device is characterized in that: the device comprises a rotating body, an axial positioning block, a rotating direction rod, at least two tooth socket positioning rods and steel balls with the same number as the tooth socket positioning rods; wherein
The rotating body is in contact with the top circle of the gear to be measured, the axial positioning block is in contact with one end face of the gear to be measured, and the axial positioning block is installed on the rotating body in a planar sliding connection mode and can be fixed on the rotating body when sliding to any position; the steering rod is rotationally arranged on the rotating body, so that different included angles are formed between the steering rod and the axial positioning block when the steering rod rotates on the surface of the rotating body; the tooth space positioning rod penetrates through the rotating body and then is fixedly connected to the rotating rod, and the steel ball capable of being inserted between two adjacent gear teeth of the gear to be detected is installed at one end, facing the gear to be detected, of the tooth space positioning rod.
2. The spur gear helix angle detecting device according to claim 1, wherein: the rotating body and the axial positioning block are two plates which are vertical to each other.
3. The spur gear helix angle detecting device according to claim 2, wherein: two sector holes are oppositely formed in the rotating body, and the tooth socket positioning rod penetrates through the sector holes.
4. The spur gear helix angle detecting device according to claim 3, wherein: one end court of turning to the pole axial positioning piece sets up and must not interfere the contact with the axial positioning piece when turning to the pole rotation, and the turning to the pole has two bosss towards a side surface protrusion ground of rotator, and two bosss divide to be listed as the both ends of turning to the pole and stretch into in the fan-shaped hole, boss be turning to one end terminal surface on the pole length direction personally submit with the arc pore wall sliding fit's of fan-shaped hole curved surface, the boss is the isosceles triangle shape of having sharpened at the other end on turning to the pole length direction.
5. The spur gear helix angle detecting device according to claim 4, wherein: the turning rod is connected to the rotating body through a centering screw fixedly connected to the rotating body, and the turning rod rotates on the rotating body by taking the axis of the centering screw as a rotating shaft.
6. The cylindrical gear helix angle detecting device according to claim 5, wherein: the turning rod is pressed and fixed through a butterfly nut screwed on the centering screw rod.
7. The spur gear helix angle detecting device according to claim 1, wherein: be equipped with one at least hole on the length direction of turning to the pole, it is provided with at least two soon to the locating piece and revolves to the locating piece homoenergetic when sliding to the optional position and fix on turning to the pole to slide in the hole, install on the locating piece soon tooth's socket locating lever.
8. The spur gear helix angle detecting device according to claim 1, wherein: the axial positioning block is connected to the side face of the rotating body in a sliding mode along two mutually perpendicular directions.
9. The spur gear helix angle detecting device according to claim 1, wherein: the axial positioning piece has the auxiliary block of axial positioning towards slidable mounting on the surface of one side of rotator, the auxiliary block of axial positioning can slide along two mutually perpendicular's direction on the axial positioning piece, and the auxiliary block of axial positioning can laminate with one of them terminal surface of gear that awaits measuring towards the one side of rotator.
10. A detection and calculation method for the pitch angle of the reference circle of a cylindrical gear is characterized by comprising the following steps:
s1, measuring the spiral angle at the contact point of the steel ball by using a cylindrical gear spiral angle detection device, which comprises the following specific steps:
1) placing a rotating body on the top of a gear to be measured, and then adjusting the installation position of an axial positioning block on the rotating body, wherein the axial positioning block is required to be attached to one end face of the gear during position adjustment; or adjusting the positions of the axial positioning block and the axial positioning auxiliary block to enable the axial positioning auxiliary block to be attached to one end face of the gear;
2) rotating the turning rod on the rotating body so that the steel balls on all the tooth space positioning rods are all inserted into the same tooth space of the gear to be measured, and then fixing the turning rod on the rotating body;
3) after the cylindrical gear helical angle detection device is taken down from a gear to be detected, an included angle between an axial positioning block and a turning rod is measured by adopting a universal angle ruler, and the included angle is the helical angle at the contact point between a steel ball and the gear;
s2, calculation of the pitch helix angle of the cylindrical gear:
and calculating according to the previously measured spiral angle at the steel ball contact point, the actual value of the common normal line length of the gear to be measured, the number of the cross-measuring teeth and the diameter of the steel ball to obtain the pitch circle spiral angle of the gear to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010357339.2A CN111366062A (en) | 2020-04-29 | 2020-04-29 | Cylindrical gear helix angle detection device and detection calculation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010357339.2A CN111366062A (en) | 2020-04-29 | 2020-04-29 | Cylindrical gear helix angle detection device and detection calculation method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT141456B (en) * | 1933-08-14 | 1935-04-25 | Zahnradfabrik Friedrichshafen | Device for testing helical involute tooth flanks. |
| CN201081685Y (en) * | 2007-09-24 | 2008-07-02 | 中煤张家口煤矿机械有限责任公司 | Portable spur gear helix angle precision measuring device |
| CN101900520A (en) * | 2009-05-25 | 2010-12-01 | 阎涛 | Angle ruler for detecting helix angle of cylindrical gear and using method thereof |
| CN103075991A (en) * | 2012-12-24 | 2013-05-01 | 中国计量学院 | Measuring device for super-large type gear and measuring method thereof |
| CN204165482U (en) * | 2014-10-09 | 2015-02-18 | 浙江万达汽车方向机有限公司 | A kind of power steering stgear steering piston nut spiral shell road position-measurement device |
| CN205785032U (en) * | 2016-05-25 | 2016-12-07 | 中安重工自动化装备有限公司 | A kind of device measured for herringbone bear symmetry |
| CN211626361U (en) * | 2020-04-29 | 2020-10-02 | 重庆市江津区禾丰机械有限公司 | Cylindrical gear helical angle detection device |
-
2020
- 2020-04-29 CN CN202010357339.2A patent/CN111366062A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT141456B (en) * | 1933-08-14 | 1935-04-25 | Zahnradfabrik Friedrichshafen | Device for testing helical involute tooth flanks. |
| CN201081685Y (en) * | 2007-09-24 | 2008-07-02 | 中煤张家口煤矿机械有限责任公司 | Portable spur gear helix angle precision measuring device |
| CN101900520A (en) * | 2009-05-25 | 2010-12-01 | 阎涛 | Angle ruler for detecting helix angle of cylindrical gear and using method thereof |
| CN103075991A (en) * | 2012-12-24 | 2013-05-01 | 中国计量学院 | Measuring device for super-large type gear and measuring method thereof |
| CN204165482U (en) * | 2014-10-09 | 2015-02-18 | 浙江万达汽车方向机有限公司 | A kind of power steering stgear steering piston nut spiral shell road position-measurement device |
| CN205785032U (en) * | 2016-05-25 | 2016-12-07 | 中安重工自动化装备有限公司 | A kind of device measured for herringbone bear symmetry |
| CN211626361U (en) * | 2020-04-29 | 2020-10-02 | 重庆市江津区禾丰机械有限公司 | Cylindrical gear helical angle detection device |
Non-Patent Citations (1)
| Title |
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| （法）昂里奥（HENRIOT，G.）著，王兆义译: "《齿轮的理论与实》", 28 February 1986, pages: 37 * |
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