CN113483700B - Detection device suitable for shaft hole on positioning differential mechanism - Google Patents
Detection device suitable for shaft hole on positioning differential mechanism Download PDFInfo
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- CN113483700B CN113483700B CN202110737664.6A CN202110737664A CN113483700B CN 113483700 B CN113483700 B CN 113483700B CN 202110737664 A CN202110737664 A CN 202110737664A CN 113483700 B CN113483700 B CN 113483700B
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- differential mechanism
- detection
- receiving
- differential
- shaft hole
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
Abstract
The invention relates to a detection device suitable for positioning an axle hole on a differential, which comprises a shell and a detection assembly accommodated in the shell, wherein the detection assembly comprises: the carrier comprises two bearing parts which are arranged at intervals and used for supporting the differential mechanism; and a detection unit including a rotary table and a detection unit provided on a power output end of the rotary table; the inner wall of the differential mechanism is circumferentially provided with a shaft hole which is at least two-purpose and is connected with the gear rotating shaft, and meanwhile, the interior of the differential mechanism is hollow and forms an opening on at least one side surface; the detection portion is arranged between the two bearing portions, the detection unit stretches into the differential mechanism from the opening, and the rotation table drives the detection unit to rotate, so that the detection unit scans the shaft hole in the circumferential direction of the differential mechanism, and then whether the center of the shaft hole is on the same plane is detected.
Description
Technical Field
The invention relates to the field of nonstandard automatic detection, in particular to a detection device suitable for positioning an upper shaft hole of a differential mechanism.
Background
The differential mechanism can realize different rotational speed pivoted mechanisms, and the differential mechanism is through automatic adjustment so that two output shaft rotational speeds are different, and the inventor finds that there is at least the following problem in the in-process of detecting differential mechanism:
firstly, the differential consists of parts such as a planetary gear, a planetary gear carrier (differential shell), a half shaft gear and the like, the power of an engine enters the differential through a transmission shaft to directly drive the planetary gear carrier, and then the planetary gear drives a left half and a right half, wherein a shell body is contacted with a planetary gear gasket and the half shaft gear of the differential, a planetary gear shaft hole on the differential shell is in clearance fit with a planetary gear shaft, and a half shaft gear shaft neck is in clearance fit with a shell hole, so that no obvious loose feeling exists, and stable transmission among gears is avoided. At the same time, the shaft holes on the differential case are arranged on the same horizontal plane, and the gears can be engaged in an adaptive manner, so that the problem that the gear stability is affected due to the clearance of the gear engagement is avoided, and therefore, the size of the shaft holes and the position of the shaft holes need to be detected.
In view of the foregoing, it is necessary to develop a detecting device suitable for positioning the shaft hole on the differential mechanism to solve the above-mentioned problems.
Disclosure of Invention
In view of the shortcomings of the prior art, a primary object of the present invention is to provide a detection device suitable for positioning an axle hole on a differential, comprising a housing and a detection assembly accommodated in the housing, the detection assembly comprising:
the carrier comprises two bearing parts which are arranged at intervals and used for supporting the differential mechanism; and
a detection unit including a rotary table and a detection unit provided at a power output end of the rotary table;
the inner wall of the differential mechanism is circumferentially provided with a shaft hole which is at least two-purpose and is connected with the gear rotating shaft, and meanwhile, the interior of the differential mechanism is hollow and forms an opening on at least one side surface;
the detection part is arranged between the two bearing parts, the detection unit stretches into the differential mechanism from the opening, and the rotation table drives the detection unit to rotate, so that the detection unit scans the shaft hole in the circumferential direction of the differential mechanism, and then the center of the shaft hole is detected to be on the same plane.
Preferably, the receiving part is provided with a receiving groove; the two corresponding sides of the differential mechanism extend outwards to form output ends, and the two output ends are respectively embedded in the bearing grooves corresponding to the bearing parts.
Preferably, the detecting assembly further comprises a positioning part, which is positioned outside one receiving part;
the positioning part comprises a pushing unit, and the pushing unit is used for pushing the output end of the differential mechanism, so that the differential mechanism is pressed on the other receiving part.
Preferably, a positioning block is arranged at the power output end of the pushing unit; when the pushing unit pushes the differential mechanism, the positioning block stretches into the shaft hole of the output end.
Preferably, the positioning block is cone-shaped, and when the pushing unit pushes the differential mechanism, the positioning block is clamped in a shaft hole at the upper output end of the differential mechanism.
Preferably, the detection unit is detected by a point laser, and the detection unit is rotated to form a point circle image under the driving of the rotation table.
Preferably, the detection unit comprises a light source and a housing, and the housing is arranged outside the light source; meanwhile, the outer cover is provided with the light holes, and laser generated by the light source is converged on the inner wall of the differential mechanism through the light holes.
Preferably, the side surface of the receiving part extends out of a side expansion plate, which is used for respectively receiving the main body part and the pushing unit of the differential mechanism.
Preferably, the receiving portion includes a first receiving plate and a second receiving plate;
the pushing unit is arranged on one side of the second bearing plate in a close way, and a second side expansion plate formed by outwards extending on the side surface of the second bearing plate bears the pushing unit;
and a first side expansion plate formed on the side surface of the first bearing plate and used for bearing the main body part of the differential mechanism is positioned between the two bearing plates, and a gap for allowing the detection unit to pass through is arranged between the first side expansion plate and the second bearing plate.
Preferably, the housing comprises an operating table and an upper casing;
the detection assembly is placed on the workbench surface of the operation table, and the upper shell is arranged on the workbench surface of the operation table so as to cover the detection assembly therein.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a detection device suitable for positioning a shaft hole on a differential mechanism, which drives a detection unit to rotate through a rotary table, so that the detection unit rotates through the shaft hole in the circumferential direction of the differential mechanism in 360 degrees to determine whether the centers of the shaft holes are on the same plane.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings. Specific embodiments of the present invention are given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic perspective view of a detecting device according to an embodiment of the invention;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
FIG. 3 is a schematic perspective view of a first view of a detecting assembly according to an embodiment of the present invention;
FIG. 4 is a schematic view of a second perspective of a detecting assembly according to an embodiment of the present invention;
FIG. 5 is a schematic perspective view of a positioning portion according to an embodiment of the invention;
FIG. 6 is a cross-sectional view of a positioning block in an embodiment of the invention;
FIG. 7 is a schematic perspective view of a detecting portion according to an embodiment of the invention;
FIG. 8 is a top view of a detection assembly according to an embodiment of the present invention.
Reference numerals illustrate:
10. a detection assembly;
11. a carrier;
111. a first receiving plate; 1111. a first side extension board; 1112. a first receiving groove;
112. a second receiving plate; 1121. a second side extension plate; 1122. a second receiving groove;
12. a positioning part;
121. a pushing unit;
122. a positioning block; 1221. a groove; 1222. a pointed cone sensing end;
13. a detection unit;
131. a laser detection unit; 1311. a light source; 1312. an outer cover; 13121. a light hole;
132. a rotary table;
20. a housing;
21. an operation table;
22. an upper housing;
23. a control unit;
30. a differential; 31. a first output terminal; 32. a main body portion; 33. and a second output terminal.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other examples, which a person of ordinary skill in the art would obtain without undue burden based on the embodiments of the invention, are within the scope of the invention.
In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used in the description of the present patent application, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are defined with respect to the configuration shown in the drawings, and in particular, "height" corresponds to the top-to-bottom dimension, "width" corresponds to the left-to-right dimension, and "depth" corresponds to the front-to-back dimension, are relative concepts, and thus may vary accordingly depending on the location and use of the terms, and therefore these or other orientations should not be interpreted as limiting terms.
Terms (e.g., "connected" and "attached") referring to an attachment, coupling, etc., refer to a relationship wherein these structures are directly or indirectly secured or attached to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
As can be seen in fig. 1 and 2 in combination, the detection device for positioning an axle hole on a differential according to an embodiment of the present invention includes a housing 20 and a detection assembly 10 accommodated in the housing 20, wherein the detection assembly 10 is used for detecting the axle hole on the differential, the differential is used as a precise transmission component, a plurality of gears are engaged with each other in the differential, so that two output shafts of the differential rotate at different speeds, and in order to ensure stability of the differential, a loose feeling is avoided between a rotating shaft and the axle hole or between the gears, so that it is required to detect the size of the axle hole to ensure that the axle hole on the differential is matched with the rotating shaft, and at the same time, the axle hole is ensured to ensure that the gears are matched with the gears, referring to fig. 3 and 4, the detection assembly 10 includes:
a carrier 11 including two receiving portions arranged at intervals for supporting the differential 30; specifically, the bearing part is provided with a bearing groove; the two corresponding sides of the differential mechanism 30 extend outwards to form output ends, and the two output ends are respectively embedded in the bearing grooves of the corresponding bearing parts, so that the differential mechanism 30 is limited on the bearing parts; and
a detection unit 13 including a rotary table 132 and a detection unit 131 provided on a power output end of the rotary table 132, the detection unit 131 being rotated through a shaft hole in a circumferential direction of the 360 ° scanning differential 30 by driving of the rotary table 132;
wherein the differential 30 comprises a main body portion 32, the main body portion 32 of the differential 30 is hollow, so that the inner wall of the main body portion 32 is circumferentially provided with a shaft hole which is at least used for connecting with a gear rotating shaft, and meanwhile, the differential 30 is hollow and is formed with an opening on at least one side surface;
the detecting part 13 is arranged between the two bearing parts, the detecting unit 131 extends into the differential mechanism 30 from the opening, and the detecting unit 131 is driven to rotate by the rotary table 132, so that the detecting unit 131 scans the shaft hole in the circumferential direction of the differential mechanism 30, and further, whether the center of the shaft hole is on the same plane is detected; when the shaft holes are positioned on the same plane, the meshing between the gears does not have loose feeling, and the stability of gear transmission is ensured, so that the service life of the differential mechanism is prolonged.
In a preferred embodiment, the detecting assembly 10 further includes a positioning portion 12, which is located outside a receiving portion, and is pressed against the differential 30 by the positioning portion 12, so that the differential 30 is fixed on the receiving portion;
wherein, the receiving groove on the corresponding receiving portion penetrates through the receiving portion, the positioning portion 12 includes a pushing unit 121, and the pushing unit 121 pushes the output end on the differential mechanism 30, so that the differential mechanism 30 is pressed on the other receiving portion.
Specifically, the receiving portion includes a first receiving plate 111 and a second receiving plate 112, the positioning portion 12 is disposed on the second receiving plate 112, a second receiving groove 1122 is formed on the second receiving plate 112, and a first receiving groove 1112 is formed on the first receiving plate 111; the output ends at the two ends of the differential mechanism 30 are a first output end 31 and a second output end 33 respectively, wherein the first receiving groove 1112 receives the first output end 31, the second receiving groove 1122 is provided with the second output end 33, when the positioning portion 12 pushes the differential mechanism 30, the positioning portion 12 applies a pushing force to the second output end 33 so as to drive the differential mechanism 30 to move towards the first receiving plate 111, and the first output end 31 is pressed on the inner wall of the first receiving groove 1112, so that the differential mechanism 30 is fixed.
As shown in fig. 5, a positioning block 122 is mounted on the power output end of the pushing unit 121; wherein, the shaft hole on the differential mechanism 30 penetrates through the output end, and when the pushing unit 121 pushes the differential mechanism 30, the positioning block 122 extends into the shaft hole of the output end.
In a preferred embodiment, the positioning block 122 has a cone-shaped structure, when the pushing unit 121 pushes the differential mechanism 30, the positioning block 122 is clamped in the shaft hole of the output end on the differential mechanism 30, the cone tip of the positioning block 122 extends into the shaft hole of the output end, meanwhile, the detecting unit 131 corresponds to the cone tip of the positioning block 122 to adjust the detecting position of the detecting unit 131, and the detecting unit 131 scans the cone tip to realize positioning, so that when the detecting unit 131 rotates and scans, the detecting unit 131 accurately scans a horizontal plane, and whether the centers of other shaft holes are on the same horizontal plane of the cone tip is judged.
Further, the detecting unit 131 is detected by the spot laser, and the detecting unit 131 is rotated by the rotation table 132 to form a spot circle image.
Further, as shown in fig. 6, the cone tip of the positioning block 122 extending into the shaft hole is concave inwards, specifically, the positioning block 122 is in a frustum structure, a concave groove 1221 is formed in the bottom surface of the side of the positioning block 122 with small area, which is provided with a pointed cone sensing end 1222, and the pointed cone sensing end 1222 does not extend out of the groove 1221.
Meanwhile, referring to fig. 7, the detection unit 131 includes a light source 1311 and a housing 1312, the housing 1312 being provided outside the light source 1311; meanwhile, a light hole 13121 is formed in the outer cover 1312, laser generated by the light source 1311 is converged on the inner wall of the differential mechanism 30 through the light hole 13121, the outer cover 1312 and the light source 1311 slide relatively, specifically, the light source 1311 is mounted on a power output end of the rotary table 132, the outer cover 1312 and the light source 1311 are connected in a sliding manner, the outer cover 1312 can limit the light source 1311 to diverge, and accordingly the light source 1311 can form a bit of laser through the light hole 13121. Meanwhile, as the outer cover 1312 slides relative to the light source 1311, the position of the light hole 13121 relative to the light source 1311 can be changed, so that the position where light is converged on the inner wall of the differential mechanism 30 is changed, the position of the point laser can be adjusted conveniently, and the point laser corresponds to the pointed cone sensing end 1222 to ensure the detection accuracy.
As shown in fig. 3 and 8, in a preferred embodiment, a side expansion plate extends from a side of the receiving portion, and is configured to receive the main body 32 and the pushing unit 121 of the differential 30, respectively.
Wherein the pushing unit 121 is arranged near one side of the second bearing plate 112, and a second side expansion plate 1121 formed by outwards extending on the side surface of the second bearing plate 112 bears the pushing unit 121;
the first receiving plate 111 is formed on a side surface thereof to receive the main body 32 of the differential gear 30, the first side extension plate 1111 is located between the two receiving plates, the first side extension plate 1111 is used for receiving a portion of the main body 32 of the differential gear 30, and a gap for allowing the detection unit 131 to pass through is provided between the first side extension plate 1111 and the second receiving plate 112, so that the detection unit 131 extends into the main body 32 for detection.
On the other hand, the output end of the differential 30 is cylindrical, and when the positioning portion 12 limits the differential 30 to the receiving portion, the differential 30 can rotate around the axial direction of the output end, so that the detecting unit 131 is difficult to extend into the opening; in order to ensure that the detection unit 131 protrudes into the differential 30, the differential 30 is restricted from rotating about the output axis direction by the first side extension plate 1111.
As shown in fig. 1, in a preferred embodiment, the housing 20 includes an operating table 21 and an upper housing 22;
wherein, the detection assembly 10 is placed on the working surface of the operation table 21, and the upper shell 22 is arranged on the working surface of the operation table 21 so as to cover the detection assembly 10 therein.
The shell 20 is also provided with a control unit 23, the detection data of the differential mechanism 30 collected by the detection part 13 is transmitted to the control unit 23, and the data after calculation and/or conversion integration is displayed in a display module in the control unit 23; the control unit 23 extends out of the housing 20 to facilitate the control of the detection by the operator outside the detection device, and at the same time, facilitate the acquisition of detection data by the operator.
Although embodiments of the present invention have been disclosed above, it is not limited to the use of the description and embodiments, it is well suited to various fields of use for the invention, and further modifications may be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the particular details without departing from the general concepts defined in the claims and the equivalents thereof.
Claims (8)
1. Detection device suitable for location differential mechanism upper shaft hole, including shell (20) and accept in detection subassembly (10) in shell (20), its characterized in that, detection subassembly (10) include:
a carrier (11) comprising two receiving portions arranged at intervals for supporting the differential (30); and
a detection unit (13) that includes a rotary table (132) and a detection unit (131) provided at a power output end of the rotary table (132);
wherein, the inner wall of the differential mechanism (30) is circumferentially provided with a shaft hole which is at least used for connecting with a gear rotating shaft, and meanwhile, the differential mechanism (30) is hollow and forms an opening on at least one side surface;
the detection part (13) is arranged between the two bearing parts, the detection unit (131) stretches into the differential mechanism (30) from the opening, and the rotation table (132) drives the detection unit (131) to rotate, so that the detection unit (131) scans a shaft hole in the circumferential direction of the differential mechanism (30), and further detects whether the centers of the shaft holes are on the same plane;
the detection assembly (10) further comprises a positioning part (12), the positioning part (12) comprises a pushing unit (121), an output end on the differential mechanism (30) is pushed by the pushing unit (121), the differential mechanism (30) is pressed on the other receiving part, and a positioning block (122) is arranged on a power output end of the pushing unit (121);
the differential mechanism (30) comprises a pushing unit (121), a positioning block (122) and a conical positioning block (122), wherein the shaft hole on the differential mechanism (30) penetrates through an output end, when the pushing unit (121) pushes the differential mechanism (30), the positioning block (122) stretches into the shaft hole of the output end, an inwards concave groove (1221) is formed in the bottom surface of one side of the small area of the positioning block (122), a pointed cone sensing end (1222) is arranged in the groove (1221), the pointed cone sensing end (1222) does not stretch out of the groove (1221), and when the pushing unit (121) pushes the differential mechanism (30), the positioning block (122) is clamped in the shaft hole of the output end on the differential mechanism (30).
2. The detecting device according to claim 1, wherein the receiving portion is provided with a receiving groove; two corresponding sides of the differential mechanism (30) extend outwards to form output ends, and the two output ends are respectively embedded in the bearing grooves corresponding to the bearing parts.
3. The detection device according to claim 2, wherein the positioning portion (12) is located outside of one of the receiving portions;
wherein, the corresponding receiving groove on the receiving part penetrates through the receiving part.
4. The apparatus according to claim 1, wherein the detecting unit (131) is detected by a spot laser, and the detecting unit (131) is rotated by the rotation table (132) to form a spot circle image.
5. The detection device according to claim 4, wherein the detection unit (131) comprises a light source (1311) and a housing (1312), the housing (1312) being arranged outside the light source (1311); meanwhile, a light hole (13121) is formed in the outer cover (1312), and laser generated by the light source (1311) is converged on the inner wall of the differential mechanism (30) through the light hole (13121).
6. A testing device according to claim 3, wherein the receiving portion has a side extension plate extending from a side surface thereof for receiving the main body portion (32) and the pushing unit (121) of the differential (30), respectively.
7. The detection device according to claim 6, wherein the receiving portion comprises a first receiving plate (111) and a second receiving plate (112);
wherein the pushing unit (121) is arranged near one side of the second bearing plate (112), and a second side expansion plate (1121) formed by outwards extending on the side surface of the second bearing plate (112) bears the pushing unit (121);
a first side extension plate (1111) formed on the side surface of the first receiving plate (111) for receiving the main body (32) of the differential mechanism (30) is located between the two receiving plates, and a gap for allowing the detection unit (131) to pass through is formed between the first side extension plate (1111) and the second receiving plate (112).
8. The detection device according to any one of claims 1 to 7, wherein the housing (20) comprises an operating table (21) and an upper housing (22);
the detection assembly (10) is placed on the working table surface of the operation table (21), and the upper shell (22) is arranged on the working table surface of the operation table (21) so as to cover the detection assembly (10) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110737664.6A CN113483700B (en) | 2021-06-30 | 2021-06-30 | Detection device suitable for shaft hole on positioning differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110737664.6A CN113483700B (en) | 2021-06-30 | 2021-06-30 | Detection device suitable for shaft hole on positioning differential mechanism |
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| CN113483700A CN113483700A (en) | 2021-10-08 |
| CN113483700B true CN113483700B (en) | 2023-05-12 |
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