CN215338238U - Crank inspection tool - Google Patents
Crank inspection tool Download PDFInfo
- Publication number
- CN215338238U CN215338238U CN202121242657.0U CN202121242657U CN215338238U CN 215338238 U CN215338238 U CN 215338238U CN 202121242657 U CN202121242657 U CN 202121242657U CN 215338238 U CN215338238 U CN 215338238U
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- Prior art keywords
- crank
- bottom plate
- measuring
- shaft
- slider
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides a crank inspection tool. Relate to an verifying attachment, especially relate to a bicycle crank inspection frock's improvement. The crank inspection tool is rapid and accurate in measurement and small in error. The measuring device comprises a base plate, be equipped with the slider on the bottom plate, the slider is in slide on the bottom plate, still be equipped with the measuring spindle on the bottom plate, one side of measuring spindle is equipped with the magnetism gauge stand, be equipped with the location axle on the slider, the sprocket cover is located epaxial in the location, the slider drives the location axial the measuring spindle motion. Thereby the crank set all fixes on the location epaxial condition that thereby makes crank set can not appear rocking in the measurement process at whole in-process in the measurement process, therefore measuring error is little, and the result is more accurate.
Description
Technical Field
The utility model relates to a checking device, in particular to an improvement of a bicycle crank checking tool.
Background
The diameter jump value is one of important parameters in the sprocket test, and the current is generally directly detected manually through the detector, and because the crank sprocket can not carry out effectual hand with the operator and fix, therefore the error is big in the measurement process to lead to leaving the factory the product quality to differ, influence follow-up product quality.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides the crank inspection tool which is rapid and accurate in measurement and small in error.
The utility model is realized by adopting the following technical scheme: crank inspection frock, including the bottom plate, be equipped with the slider on the bottom plate, the slider is in slide on the bottom plate, still be equipped with the measuring spindle on the bottom plate, one side of measuring spindle is equipped with the magnetism gauge stand, be equipped with the location axle on the slider, the sprocket cover is located epaxial in the location, the slider drives the location axial the measuring spindle motion.
The sliding block is provided with a sliding groove, the measuring shaft is arranged in the sliding groove and slides in the sliding groove, and a bearing is arranged between the sliding groove and the measuring shaft.
The positioning shaft and the measuring shaft are both perpendicular to the bottom plate and are higher than the end face of the bottom plate.
Compared with the prior art, when the positioning core shaft is used, the sliding block is firstly pulled down to enable the positioning shaft and the measuring shaft to keep the maximum distance, and the crank set (namely the crank with the chain wheel at the top end) is placed in the positioning core shaft. And rotating the chain wheel to align the first measuring point with the measuring shaft, pushing the sliding block forwards to clamp the first measuring point on the measuring shaft, and adjusting the position of the magnetic gauge stand to compress the gauge needle by 1-2 mm. And reading a first point measured value, and repeating the two items to read the difference of the four measured points to obtain the diameter jump value of the chain wheel set. Thereby the crank set all fixes on the location epaxial condition that thereby makes crank set can not appear rocking in the measurement process at whole in-process in the measurement process, therefore measuring error is little, and the result is more accurate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. a base plate; 2. a slider; 3. positioning the shaft; 4. a measuring shaft; 5. a magnetic watch base.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
As shown in fig. 1, the crank inspection tool comprises a bottom plate 1, a sliding block 2 is arranged on the bottom plate 1, the sliding block 2 slides on the bottom plate 1, a measuring shaft 4 is further arranged on the bottom plate 1, a magnetic gauge stand 5 is arranged on one side of the measuring shaft 4, a positioning shaft 3 is arranged on the sliding block 2, a chain wheel is sleeved on the positioning shaft 3, and the sliding block 2 drives the positioning shaft 3 to move towards the measuring shaft 4. When the positioning core shaft is used, the sliding block 2 is firstly pulled down to enable the positioning shaft 3 and the measuring shaft 4 to keep the maximum distance, and a crank set (namely a crank with a chain wheel at the top end) is placed into the positioning core shaft. Rotating the chain wheel to make the first measuring point align with the measuring shaft 4, pushing the slide block 2 forward to make the first measuring point clamp on the measuring shaft 4, adjusting the position of the magnetic gauge stand 5, and compressing the gauge needle by 1-2 mm. And reading a first point measured value, and repeating the two items to read the difference of the four measured points to obtain the diameter jump value of the chain wheel set. Thereby the crank set all fixes on location axle 3 in whole in-process in the measurement process so that the condition that the crank set can not appear rocking in the measurement process, therefore measuring error is little, and the result is more accurate.
The slide block 2 is provided with a sliding groove, the measuring shaft 4 is arranged in the sliding groove and slides in the sliding groove, and a bearing is arranged between the sliding groove and the measuring shaft 4. The positioning shaft 3 and the measuring shaft 4 are both arranged perpendicular to the bottom plate 1 and are higher than the end face of the bottom plate 1. The positioning shaft 3 and the measuring shaft 4 are both perpendicular to the bottom plate 1 and are higher than the end face of the bottom plate 1, so that the crank set can be conveniently fixed and positioned.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (3)
1. Crank inspection frock, including the bottom plate, its characterized in that: the bottom plate is provided with a sliding block, the sliding block slides on the bottom plate, the bottom plate is further provided with a measuring shaft, one side of the measuring shaft is provided with a magnetic gauge stand, the sliding block is provided with a positioning shaft, a chain wheel sleeve is arranged on the positioning shaft, and the sliding block drives the positioning shaft to move towards the measuring shaft.
2. The crank inspection tool of claim 1, wherein: the sliding block is provided with a sliding groove, the measuring shaft is arranged in the sliding groove and slides in the sliding groove, and a bearing is arranged between the sliding groove and the measuring shaft.
3. The crank inspection tool of claim 2, wherein: the positioning shaft and the measuring shaft are both perpendicular to the bottom plate and are higher than the end face of the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121242657.0U CN215338238U (en) | 2021-06-04 | 2021-06-04 | Crank inspection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121242657.0U CN215338238U (en) | 2021-06-04 | 2021-06-04 | Crank inspection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215338238U true CN215338238U (en) | 2021-12-28 |
Family
ID=79551153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121242657.0U Active CN215338238U (en) | 2021-06-04 | 2021-06-04 | Crank inspection tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215338238U (en) |
-
2021
- 2021-06-04 CN CN202121242657.0U patent/CN215338238U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |