CN219841945U - Detection tool for gear clearance of differential assembly - Google Patents
Detection tool for gear clearance of differential assembly Download PDFInfo
- Publication number
- CN219841945U CN219841945U CN202321112767.4U CN202321112767U CN219841945U CN 219841945 U CN219841945 U CN 219841945U CN 202321112767 U CN202321112767 U CN 202321112767U CN 219841945 U CN219841945 U CN 219841945U
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- detection
- differential assembly
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- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 238000009434 installation Methods 0.000 claims abstract description 79
- 238000006073 displacement reaction Methods 0.000 claims abstract description 24
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 7
- 239000004831 Hot glue Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model relates to a detection tool, in particular to a detection tool for a gear clearance of a differential assembly. Including the barrel, be provided with coaxial first installation cavity and second installation cavity in the barrel, the bottom in first installation cavity is provided with the installation piece, and the top in second installation cavity is provided with the detection piece, detects piece and installation piece fixed connection, is provided with the spring that can make the installation piece reciprocate in the first installation cavity, and the top in first installation cavity is provided with the apron, wears to be equipped with displacement sensor on the apron, and displacement sensor is connected with the display electricity. According to the utility model, the rotating shaft is placed in the second mounting cavity, the rotating shaft is in contact with the detection block, a worker moves the cylinder downwards, the lower surface of the cylinder is in contact with the shell of the differential mechanism, at the moment, the spring is compressed, the detection block pushes the rotating shaft to move downwards, the side gear is meshed with the planetary gear, the distance of the downward movement of the mounting block is measured by the displacement sensor, and data are displayed through the display.
Description
Technical Field
The utility model relates to a detection tool, in particular to a detection tool for a gear clearance of a differential assembly.
Background
An automotive differential is a mechanism that enables left and right (or front and rear) drive wheels to rotate at different speeds. When the automobile turns or runs on uneven road, the left and right wheels roll at different speeds, i.e. the pure rolling motion of the driving wheels at two sides is ensured. As shown in fig. 1, the differential assembly is composed of two oppositely disposed side gears 2, on which a rotating shaft 201 is mounted, two oppositely disposed planetary gears 3, and a housing 1; the center line of the side gear 2 is perpendicular to the center line of the planetary gear 3; the gap between the half shaft gear and the planetary gear is particularly important, if the gear meshing gap is larger, larger noise is generated in the whole transmission process, meanwhile, the gears are damaged due to knocking among the gears, so that the service life of the gears is shortened; if the gear meshing clearance is smaller, the gear is not stable in the transmission process, and the heat generated in the operation process is overlarge, so that the gear has bad working conditions such as ablation and the like, and therefore, the reasonable gear meshing clearance is very important for the whole transmission system.
In the traditional measurement mode, most of the dial indicators are used as measurement counting tools, so that insufficient measurement precision and poor precision are caused, manual measurement is poor in repeatability, repair rate is high, repeated measurement of a differential mechanism is not facilitated, manual measurement is slow, and manual labor intensity is high.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a detection tool for a gear clearance of a differential assembly, which is convenient for workers to measure the clearance between a differential side gear and a planetary gear.
The technical scheme adopted by the utility model for solving the technical problems is that the detection tool for the gear clearance of the differential mechanism assembly comprises a cylinder body, wherein a first installation cavity and a second installation cavity which are coaxial are arranged in the cylinder body, and the first installation cavity is communicated with the second installation cavity; the bottom of first installation chamber is provided with the installation piece, the top of second installation chamber is provided with the detection piece, detection piece and installation piece fixed connection, be provided with the spring that can make the installation piece reciprocate in the first installation chamber, the top of first installation chamber is provided with the apron, the one end and the installation piece fixed connection of spring, the other end and apron fixed connection, wear to be equipped with displacement sensor on the apron, displacement sensor and installation piece fixed connection, displacement sensor and display electricity are connected.
Further, a first guide piece is arranged in the first installation cavity, a second guide piece matched with the first guide piece for use is arranged on the installation block, and the second guide piece can move up and down relative to the first guide piece.
Further, an alarm system is arranged on the display.
Further, a plurality of operation grooves are provided in the circumferential direction of the cylinder.
Further, the cover plate is connected with the cylinder body through bolts.
Further, a sleeve is sleeved on the displacement sensor, and the lower end of the sleeve is connected with the cover plate through a bolt.
Further, a protective ring is arranged at the bottom of the cylinder body, and the protective ring is connected with the cylinder body through bolts.
Further, the lower extreme of detecting the piece is provided with wear-resisting circle, wear-resisting circle and detection piece bolted connection.
The beneficial effects of the utility model are as follows: through setting up first installation cavity and second installation cavity, when using, place the pivot in the second installation cavity, make pivot and detection piece contact, the workman moves down the barrel, make barrel lower surface and differential mechanism's casing contact, at this moment, the spring is compressed, and provide a decurrent power to the installation piece, make the detection piece promote the pivot and move down, and then make the side gear and planetary gear meshing, the distance of installation piece downwardly moving is side gear and planetary gear interdental clearance like this, utilize displacement sensor to measure the distance of installation piece downwardly moving, show data through the display, make the measurement of interdental clearance more convenient.
Drawings
FIG. 1 is a schematic structural view of a differential;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a cross-sectional view of FIG. 2;
fig. 4 is an enlarged view at a in fig. 3.
Reference numerals: 1-a housing; 2-side gears; 201-rotating shaft; 3-planetary gears; 4-a cylinder; 401-a first mounting cavity; 402-a second mounting cavity; 403-cover plate; 404-an operation slot; 405-guard rings; 5-mounting blocks; 501-a first guide; 502-a second guide; 6-a spring; 7-a detection block; 701-a wear ring; 8-a displacement sensor; 9-a sleeve; 10-display.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
As shown in the side gear 2 and fig. 3, the detection tool for the gear clearance of the differential assembly comprises a cylinder 4, wherein a first installation cavity 401 and a second installation cavity 402 which are coaxial are arranged in the cylinder 4, and the first installation cavity 401 and the second installation cavity 402 are communicated; the bottom of first installation cavity 401 is provided with installation piece 5, the top of second installation cavity 402 is provided with detection piece 7, detection piece 7 and installation piece 5 fixed connection, be provided with the spring 6 that can make installation piece 5 reciprocate in the first installation cavity 401, the top of first installation cavity 401 is provided with apron 403, the one end and the installation piece 5 fixed connection of spring 6, the other end and apron 403 fixed connection, wear to be equipped with displacement sensor 8 on the apron 403, displacement sensor 8 and installation piece 5 fixed connection, displacement sensor 8 and display 10 electricity are connected.
The cross sections of the first installation cavity 401 and the second installation cavity 402 are circular, the outline size of the first installation cavity 401 is larger than that of the second installation cavity 402, thus a step is formed at the joint of the first installation cavity 401 and the second installation cavity 402, the installation block 5 is arranged on the step, the installation block 5 is matched with the shape of the first installation cavity 401, and the installation block 5 is cylindrical; the detection block 7 is matched with the shape of the second installation cavity 402, and the detection block 7 is cylindrical; it should be noted that, the outer dimension of the second mounting cavity 402 needs to be larger than the outer dimension of the rotating shaft 201 of the differential, so that the rotating shaft 201 can be placed in the second mounting cavity 402; the outline size of the installation block 5 is larger than that of the detection block 7, the detection block 7 and the installation block 5 can be integrally formed or connected by bolts, the spring 6 is arranged in the first installation cavity 401, the number of the springs 6 can be one and is coaxial with the installation block 5, and the same number of the springs 6 can be multiple and are arranged along the circumferential direction of the installation block 5; the cover plate 403 is arranged at the top of the first installation cavity 401, the installation block 5 is limited, the installation block 5 is ensured to be positioned in the first installation cavity 401, the connection mode of the cover plate 403 and the cylinder 4 can be bonding, and if the cover plate 403 and the cylinder 4 are made of steel, the connection mode can also be welding; one end of the spring 6 is fixedly connected with the mounting block 5, the other end of the spring 6 is fixedly connected with the cover plate 403, the connection mode of the spring 6 and the mounting block 5 can be hot melt adhesive, the connection mode of the spring 6 and the cover plate 403 can also be hot melt adhesive, and if the cover plate 403, the mounting block 5 and the spring 6 are all made of steel, the connection mode can also be adopted for welding; a through hole is arranged on the cover plate 403, the displacement sensor 8 passes through the through hole, and the displacement sensor 8 is adhered to the mounting block 5 by using hot melt adhesive; the displacement sensor 8 is electrically connected with a display 10 through a wire, and the display 10 is used for displaying the indication of the displacement sensor 8.
The specific operation process of the utility model comprises the following steps:
placing the assembled differential assembly on an operation table, enabling the rotating shaft 201 to vertically upwards, enabling the second mounting cavity 402 of the cylinder 4 to be opposite to the rotating shaft 201, moving the cylinder 4 downwards, enabling the detection block 7 in the second mounting cavity 402 to be in contact with the rotating shaft 201, and opening the displacement sensor 8; the cylinder 4 is moved downwards, so that the cylinder 4 is in contact with the housing 1 of the differential mechanism, at the moment, the spring 6 can provide a downward force, so that the side gear 2 is moved downwards to be in contact with the planetary gear 3, the side gear 2 is moved downwards, the rotating shaft 201 is moved downwards, the mounting block 5 is driven to move downwards, the downward moving distance of the mounting block 5 is the gap between the side gear 2 and the planetary gear 3, and the display screen records the reading S of the displacement sensor 8 at the moment, wherein the reading S is the gap between the side gear 2 and the planetary gear 3.
In order to make the movement of the mounting block 5 smoother, further, referring to fig. 4, a first guide member 501 is disposed in the first mounting cavity 401, and a second guide member 502 matched with the first guide member 501 is disposed on the mounting block 5, where the second guide member 502 can move up and down relative to the first guide member 501. Wherein the first guide 501 may be a dovetail groove, and the second guide 502 is a dovetail block used in cooperation with the dovetail groove; or the first guide piece 501 is a dovetail block, and the second guide piece 502 is a dovetail groove matched with the dovetail block; the dovetail groove and the dovetail block are required to be vertically arranged, and the dovetail block can slide up and down in the dovetail groove;
the gap between the teeth of the side gear 2 and the planetary gears 3 needs to be in a proper range, and when the detected data is not in a specified range, a warning is needed to be given to the worker, and further, an alarm system is provided on the display 10. The alarm system can judge whether the detected data is in a specified range, and when the detected data is not in the specified range, the alarm system can emit red light or sound to remind workers that the detected differential assembly is unqualified.
In order to facilitate the worker to move the cylinder 4 downward, further, referring to the side gear 2 and fig. 3, the cylinder 4 is provided with a plurality of operation grooves 404 in the circumferential direction. The operation groove 404 is square and is communicated with the second installation cavity 402, and when in use, two thumbs of a worker are placed in the operation groove 404, and the rest fingers grasp the differential body and drive the cylinder 4 to move downwards by the thumbs.
In the process of detection, the spring 6 needs to be compressed for a plurality of times, and in order to facilitate replacement of the spring 6, the cover plate 403 is further connected with the cylinder 4 by bolts.
In order to protect the displacement sensor 8, further referring to the side gear 2 and fig. 3, a sleeve 9 is sleeved on the displacement sensor 8, and the lower end of the sleeve 9 is connected with a cover plate 403 through bolts.
Because the bottom of barrel 4 needs continuous contact with differential mechanism casing 1 in the use, causes wearing and tearing easily, further, see figure side gear 2 and figure 3, the bottom of barrel 4 is provided with guard ring 405, and guard ring 405 is high-speed steel, for the convenient guard ring 405 that changes, guard ring 405 and barrel 4 bolted connection.
Because the lower end of the detecting block 7 needs to be in continuous contact with the rotating shaft 201 in the use process, abrasion is easy to be caused, further referring to the side gear 2 and fig. 3, the lower end of the detecting block 7 is provided with a wear-resistant ring 701, the wear-resistant ring 701 is made of rubber, and the wear-resistant ring 701 is in bolted connection with the detecting block 7 for convenient replacement of the wear-resistant ring 701.
The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. The detection tool for the gear clearance of the differential assembly comprises a cylinder body (4), wherein a first installation cavity (401) and a second installation cavity (402) which are coaxial are arranged in the cylinder body (4), and the first installation cavity (401) and the second installation cavity (402) are communicated;
the method is characterized in that: the bottom of first installation cavity (401) is provided with installation piece (5), the top of second installation cavity (402) is provided with detection piece (7), detection piece (7) and installation piece (5) fixed connection, be provided with spring (6) that can make installation piece (5) reciprocate in first installation cavity (401), the top of first installation cavity (401) is provided with apron (403), the one end and installation piece (5) fixed connection of spring (6), the other end and apron (403) fixed connection, wear to be equipped with displacement sensor (8) on apron (403), displacement sensor (8) and installation piece (5) fixed connection, displacement sensor (8) are connected with display (10) electricity.
2. The detection tool for a differential assembly gear gap of claim 1, wherein: the first installation cavity (401) is internally provided with a first guide piece (501), the installation block (5) is provided with a second guide piece (502) matched with the first guide piece (501), and the second guide piece (502) can move up and down relative to the first guide piece (501).
3. The detection tool for a differential assembly gear gap of claim 1, wherein: an alarm system is arranged on the display (10).
4. The detection tool for a differential assembly gear gap of claim 1, wherein: a plurality of operation grooves (404) are formed in the circumferential direction of the cylinder (4).
5. The detection tool for a differential assembly gear gap of claim 1, wherein: the cover plate (403) is connected with the cylinder body (4) through bolts.
6. The detection tool for a differential assembly gear gap of claim 1, wherein: the displacement sensor (8) is sleeved with a sleeve (9), and the lower end of the sleeve (9) is connected with the cover plate (403) through bolts.
7. The detection tool for a differential assembly gear gap of claim 1, wherein: the bottom of barrel (4) is provided with guard ring (405), guard ring (405) and barrel (4) bolted connection.
8. The detection tool for a differential assembly gear gap of claim 1, wherein: the lower extreme of detection piece (7) is provided with wear-resisting circle (701), wear-resisting circle (701) and detection piece (7) bolted connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321112767.4U CN219841945U (en) | 2023-05-10 | 2023-05-10 | Detection tool for gear clearance of differential assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321112767.4U CN219841945U (en) | 2023-05-10 | 2023-05-10 | Detection tool for gear clearance of differential assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219841945U true CN219841945U (en) | 2023-10-17 |
Family
ID=88300176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321112767.4U Active CN219841945U (en) | 2023-05-10 | 2023-05-10 | Detection tool for gear clearance of differential assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219841945U (en) |
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2023
- 2023-05-10 CN CN202321112767.4U patent/CN219841945U/en active Active
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