CN213543434U - Miniature double-row angular contact ball bearing preload measuring instrument - Google Patents
Miniature double-row angular contact ball bearing preload measuring instrument Download PDFInfo
- Publication number
- CN213543434U CN213543434U CN202023142875.5U CN202023142875U CN213543434U CN 213543434 U CN213543434 U CN 213543434U CN 202023142875 U CN202023142875 U CN 202023142875U CN 213543434 U CN213543434 U CN 213543434U
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- base
- pull rod
- hole
- bearing
- base plate
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- Expired - Fee Related
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- 230000036316 preload Effects 0.000 title claims abstract description 17
- 125000006850 spacer group Chemical group 0.000 abstract description 16
- 238000009434 installation Methods 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a miniature double-row angular contact ball bearing preload measuring instrument, including the base frame, the base frame installation table frame, the table frame installation amesdial, the upper portion of base frame installation horizontal base plate, horizontal base plate installation lateral position adjustable bearing loads the subassembly, bearing loads the subassembly and includes the base, the base has vertical through-hole, be equipped with the pull rod with vertical through-hole clearance fit in the vertical through-hole, the upper portion ring pull rod of base is equipped with the lower support part, the upper end of pull rod is installed and is loaded the piece, the lower extreme of loading the piece is equipped with the upper support part that is equipped with the ring pull rod, the lower extreme of pull rod connects the lower load piece; the base is installed on a horizontal base plate through a flat key, the horizontal base plate is provided with a groove hole which is the same as the extension direction of the flat key, and the pull rod penetrates through the groove hole. The measuring instrument can measure the gap between the inner rings of the bearing in a preload state, accurately measure the difference value after the spacer bush is installed, process the spacer bush according to the difference value, ensure the processing precision of the spacer bush and improve the bearing quality.
Description
Technical Field
The utility model belongs to the technical field of the bearing check out test set, especially, relate to a miniature double row angular contact ball bearing preload measuring instrument.
Background
With continuous progress of science, industrial product miniaturization develops rapidly, an ultra-micro bearing is widely adopted, an ultra-micro double-row (double-half inner ring or double-half outer ring) angular contact ball bearing with an inner hole of less than 2-4 mm is widely adopted in a micro compressor and a precision instrument, and the key technology of the product is the pairing of the preload (protrusion amount) of the bearing, namely the preload of the bearing is determined by the size of a gap (protrusion amount) between the end surfaces of two inner rings (or outer rings) of the bearing, the preload is large when the gap is large, and the preload is small when the gap is small. The spacer bush is a sleeve body arranged between two inner rings of the bearing, and the spacer bush limits the distance between the inner rings. At present, the length of a shaft sleeve needs to be processed according to a preset load, and at present, a device for measuring the distance between two inner rings according to the preset load is complex in structure and machining precision of a spacer bush is inaccurate.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a miniature double row angular contact ball bearing preload measuring instrument, this instrument easy operation, measured repeatability is high, has satisfied the actual production needs.
The utility model discloses a realize like this, a miniature double row angular contact ball bearing preload measuring instrument, its characterized in that: the bearing loading assembly is positioned below the dial indicator and comprises a base, a horizontal base plate is mounted on the upper portion of the base, a bearing loading assembly with an adjustable transverse position is mounted on the horizontal base plate, the base is provided with a vertical through hole, a pull rod in clearance fit with the vertical through hole is arranged in the vertical through hole, a lower supporting portion is arranged on the upper portion of the base in a ring mode, an upper load block is mounted at the upper end of the pull rod, the upper end face of the upper load block is a horizontal plane, an upper supporting portion provided with a ring pull rod is arranged at the lower end of the upper load block, and the lower end of the pull rod is connected with the lower load block; the base is installed on the horizontal base plate through a flat key, the horizontal base plate is provided with a groove hole which is the same as the extension direction of the flat key, and the pull rod penetrates through the groove hole.
The measuring instrument can measure the gap between the inner rings of the bearing in a preload state, accurately measure the difference after the spacer bush is installed, and perform secondary processing treatment on the spacer bush according to the difference, so that the processing precision of the spacer bush is ensured, and the bearing quality is improved.
In the above technical solution, preferably, the positioning plate is fixed to a side portion of the base, the positioning plate is provided with a sliding groove having the same extending direction as the flat key, a positioning screw capable of locking the position of the base is installed in the sliding groove, and the substrate is provided with a positioning screw hole combined with the positioning screw.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view showing a state in which a bearing is mounted;
fig. 3 is a schematic structural view of a mounted state of the spacer.
In the figure, 1, a base frame; 2. a watch frame; 3. a dial indicator; 4. loading a load block; 4-1, an upper supporting part; 5. a base; 5-1, a lower supporting part; 6. a pull rod; 7. a flat bond; 8. a horizontal substrate; 9. a lower load block; 10. positioning a plate; 11. a bearing; 12. and (4) a spacer bush.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model particularly provides a miniature double row angular contact ball bearing preload measuring instrument, this instrument easy operation, measured repeatability is high, has satisfied the actual production needs. For further explanation of the structure of the present invention, the following detailed description is made with reference to the accompanying drawings:
referring to fig. 1, a miniature double-row angular contact ball bearing preload measuring instrument includes a base frame 1, wherein the base frame 1 is formed by fixing an upper plate and a lower plate into an instrument frame by four pillars using bolts. The base frame 1 is provided with a meter frame 2, and the meter frame 2 is an L-shaped metal frame fixed on the base frame 1 by bolts. The dial indicator 3 is installed on the dial indicator frame, the dial indicator 3 is fixed on the upper portion of the dial indicator frame and located above the base frame, and a probe of the dial indicator 3 is vertically downward. A horizontal base plate 8 is mounted on the upper part of the base frame 1, and the upper end surface of the horizontal base plate 8 is a horizontal plane. The horizontal base plate 8 mounts a bearing loading assembly that is adjustable in lateral position. The bearing loading assembly is positioned below the dial indicator 3.
The bearing loading assembly comprises a base 5, the base 5 having a vertical through hole. A pull rod 6 in clearance fit with the vertical through hole is arranged in the vertical through hole, a lower supporting part 5-1 is arranged on the upper ring pull rod 6 of the base 5, and the lower supporting part 5-1 is used for supporting the lower part of the inner ring and surrounds the pull rod 6. The upper end of the pull rod 6 is provided with an upper load block 4, the upper end surface of the upper load block 4 is a horizontal plane, the lower end of the upper load block 4 is provided with an upper support part 4-1 provided with a ring pull rod 6, and the upper support part 4-1 is used for jacking the upper part of the inner ring.
The lower end of the pull rod 6 is connected with a lower load block 9. The base 5 is installed on the horizontal base plate 8 through a flat key 7, the flat key 7 and the horizontal base plate 8 are provided with groove holes with the same extending direction as the flat key 7, and the pull rod 6 penetrates through the groove holes.
A positioning plate 10 is fixed on the side portion of the base 5, a sliding groove which is the same as the extending direction of the flat key 7 is formed in the positioning plate 10, a positioning screw capable of locking the position of the base is installed in the sliding groove, and the base plate 8 is provided with a positioning screw hole combined with the positioning screw.
The working operation steps are as follows:
1) the bearing loading assembly is horizontally moved out of the lower part of the dial indicator, namely, the positioning screw is rotated, so that the locking and fixing between the positioning plate 10 and the base plate 8 are invalid, and the base 5 is pulled out.
2) The bearing 11 is placed between the lower support 5-1 and the upper support 4-1 as shown in fig. 2.
3) The upper end of a pull rod 6 with a lower load block 9 penetrates through a base frame 1, a base plate 8, a flat key 7 and a base 5 and then is connected with an upper load block 4 through internal threads, and the upper load block 4, a bearing 11, the base 5 and the lower load block 9 are connected into a whole through the pull rod 6.
4) The bearing loading assembly with the bearing 11 is moved to the lower part of the dial indicator 3, namely the base 5 is horizontally pushed, and the probe of the dial indicator 3 is in contact with the central point of the upper load block 4.
5) The dial indicator 3 pointer is set to the zero position.
6) And horizontally moving the bearing loading assembly out of the lower part of the dial indicator, namely pulling out the base 5, detaching the upper load block 4, taking down the bearing 11, and taking out the two inner rings.
7) The spacer 12 is placed between the two inner rings and together between the lower support 5-1 and the upper support 4-1 as shown in figure 3.
8) Repeat step 3).
9) And (5) repeating the step 4), observing the deflection and the direction of the pointer of the dial indicator 3, and recording the numerical value indicated by the pointer of the dial indicator 3.
10) The bearing loading assembly is moved horizontally out of the position below the dial indicator, i.e. the base 5 is pulled out, the upper load block 4 is removed and the spacer 12 is taken out.
11) And determining the grinding amount according to the numerical value indicated by the pointer of the dial indicator 3 in the step 9) to grind the end surface of the spacer 12.
12) And (4) placing the ground spacer bush 12 between the two inner circles, and repeating the steps 7) and 8) until the pointer of the dial indicator 3 points to zero.
13) And (3) installing the inner ring and the spacer bush 12 in the bearing to finish the pre-load pairing.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (2)
1. A miniature double row angular contact ball bearing preload measuring instrument which characterized in that: the bearing loading device comprises a base frame (1), wherein a gauge frame (2) is installed on the base frame (1), a dial indicator (3) is installed on the gauge frame (2), a horizontal base plate (8) is installed on the upper portion of the base frame (1), a bearing loading assembly with an adjustable transverse position is installed on the horizontal base plate (8), the bearing loading assembly is located below the dial indicator (3), the bearing loading assembly comprises a base (5), the base (5) is provided with a vertical through hole, a pull rod (6) in clearance fit with the vertical through hole is arranged in the vertical through hole, a lower supporting portion (5-1) is arranged on an upper annular pull rod (6) of the base (5), an upper load block (4) is installed at the upper end of the pull rod (6), the upper end face of the upper load block (4) is a horizontal plane, an upper supporting portion (4-1) provided with an annular pull rod (6) is arranged at the lower end of the upper load block (, the lower end of the pull rod (6) is connected with a lower load block (9); the base (5) is installed on the horizontal base plate (8) through a flat key (7), the horizontal base plate (8) is provided with a groove hole which is the same as the extension direction of the flat key (7), and the pull rod (6) penetrates through the groove hole.
2. The miniature double row angular contact ball bearing preload measuring instrument according to claim 1, wherein: the locating plate (10) is fixed to the side portion of the base (5), a sliding groove which is the same as the flat key (7) in the extending direction is formed in the locating plate (10), a locating screw capable of locking the position of the base (5) is installed in the sliding groove, and a locating screw hole combined with the locating screw is formed in the base plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023142875.5U CN213543434U (en) | 2020-12-22 | 2020-12-22 | Miniature double-row angular contact ball bearing preload measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023142875.5U CN213543434U (en) | 2020-12-22 | 2020-12-22 | Miniature double-row angular contact ball bearing preload measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213543434U true CN213543434U (en) | 2021-06-25 |
Family
ID=76485988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023142875.5U Expired - Fee Related CN213543434U (en) | 2020-12-22 | 2020-12-22 | Miniature double-row angular contact ball bearing preload measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213543434U (en) |
-
2020
- 2020-12-22 CN CN202023142875.5U patent/CN213543434U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210625 |
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| CF01 | Termination of patent right due to non-payment of annual fee |