CN204154262U - Gear piece testing flatness device - Google Patents
Gear piece testing flatness device Download PDFInfo
- Publication number
- CN204154262U CN204154262U CN201420534164.8U CN201420534164U CN204154262U CN 204154262 U CN204154262 U CN 204154262U CN 201420534164 U CN201420534164 U CN 201420534164U CN 204154262 U CN204154262 U CN 204154262U
- Authority
- CN
- China
- Prior art keywords
- front apron
- backboard
- pad
- millimeters
- gear piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of gear piece testing flatness device, comprise front apron (1), pad (2), backboard (3) and holding screw (4), pad (2) is provided with between front apron (1) and backboard (3), pad (2) is positioned at four corner position places of front apron (1), front apron (1), pad (2) is connected by holding screw (4) successively with backboard (3), front apron (1) is concordant with the lower end of backboard (3), the length that the upper part of backboard (3) exceeds front apron (1) is 30 millimeters ~ 50 millimeters, the thickness of pad (2) is 2.1 millimeters.The utility model structure is simple, is easy to operation, detects required time short, without the need to periodic maintenance, effectively can reduce production cost, can meet the needs of large-scale production.
Description
Technical field
The utility model relates to a kind of testing flatness device, and specifically a kind of gear piece testing flatness device, belongs to testing flatness technical field.
Background technology
Bicycle freewheel is the critical component of whole bicycle, and the quality of its quality directly affects the overall performance of bicycle.According to investigations in current bicycle trade, the Problem of Failure of flywheel has been very distinct issues.Especially for mountain bike and special bicycle of competing, higher to the quality requirements of flywheel.Element the most basic in flywheel is gear piece, the gear piece of varying number can superpose by the different purposes according to bicycle, so for bicycle producer, just need to produce a large amount of gear pieces, and the quality of bicycle will be ensured, just must improve the performance of flywheel, thus must test the flatness of gear piece, because the gear piece quantity of large-scale production is more, if carry out testing with complicated detecting instrument, consuming time more, the needs of large-scale production cannot be met, and need to carry out timing maintenance and maintenance to detecting instrument, virtually production cost can be increased, so be difficult to realize in daily production.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of gear piece testing flatness device, and structure is simple, and detect required time short, service free, can meet the needs of large-scale production.
To achieve these goals, the utility model is achieved through the following technical solutions: a kind of gear piece testing flatness device, comprise front apron, pad, backboard and holding screw, pad is provided with between front apron and backboard, pad is positioned at four corner position places of front apron, front apron, pad are connected by holding screw successively with backboard, front apron is concordant with the lower end of backboard, the length that the upper part of backboard exceeds front apron is 30 millimeters ~ 50 millimeters, and the thickness of pad is 2.1 millimeters.
Preferably, described front apron and backboard are high-strength abrasion-proof steel plate, not easily cause wearing and tearing because detecting for a long time, and thickness changes, and can ensure the accuracy detected, and can reduce the frequency changing front apron and backboard simultaneously.
Preferably, described front apron and the thickness of backboard are 10 millimeters ~ 15 millimeters, if find that in long production run thickness is less than 10 millimeters, the steadiness of front and rear baffle is poor, after using a period of time, because a large amount of gear pieces rubs to it, be easier to make the gap between front and rear baffle become large; If thickness is greater than 15 millimeters, then cause device total quality comparatively large, more difficult when installing replacing.
Preferably, described pad adopts 304 stainless steels, not easily oxidation and rusting, and not yielding, and the gap between front apron and backboard can be kept constant, thus ensures the accuracy of testing result.
The beneficial effects of the utility model are: by arranging suitable spacing between front apron and backboard, the gear piece needing to detect is passed through this gap, just can detect the flatness of gear piece, structure is simple, easy operation, saves time, and is suitable for use of large-scale production; And this pick-up unit is convenient to mobile and installs, can according to production site need change position, flexible and convenient to use; Because front apron, pad and backboard are stainless steel, not easily oxidation and rusting, without the need to periodic maintenance, so effectively can reduce production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, front apron, 2, pad, 3, backboard, 4, holding screw.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, a kind of gear piece testing flatness device, comprise front apron 1, pad 2, backboard 3 and holding screw 4, pad 2 is provided with between front apron 1 and backboard 3, pad 2 is positioned at four corner position places of front apron 1, front apron 1, pad 2 is connected by holding screw 4 successively with backboard 3, front apron 1 is concordant with the lower end of backboard 3, the length that the upper part of backboard 3 exceeds front apron 1 is 30 millimeters ~ 50 millimeters, that conveniently gear piece is put in the gap of front apron 1 and backboard 3 like this, the thickness of pad 2 is 2.1 millimeters, because the thickness requirement of standard gear piece is 1.75 millimeters, the flatness error scope allowed is+0.35 millimeter.
Preferably, front apron 1 and backboard 3 are high-strength abrasion-proof steel plate, not easily cause wearing and tearing because detecting for a long time, and thickness changes, and can ensure the accuracy detected, and can reduce the frequency changing front apron 1 and backboard 2 simultaneously.
Preferably, the thickness of front apron 1 and backboard 3 is 10 millimeters ~ 15 millimeters, if find that in long production run thickness is less than 10 millimeters, the steadiness of front apron 1 and backboard 3 is poor, after using a period of time, because a large amount of gear pieces rubs to it, the gap between front apron 1 and backboard 3 is easily made to become large; If thickness is greater than 15 millimeters, then cause device total quality comparatively large, more difficult when installing replacing.
Preferably, described pad 2 adopts 304 stainless steels, not easily oxidation and rusting, and not yielding, and the gap between front apron 1 and backboard 3 can be kept constant, thus ensures the accuracy of testing result.
Test process is: proving installation is fixed on the convenient position producing inspection such as support or wall, by holding screw 4, front apron 1, pad 2 and backboard 3 are fixed successively, gear piece to be measured is fallen above the gap between front apron 1 and backboard 3, if this gear piece can pass through gap, fall in the collecting box of below, illustrate that the flatness of this gear piece meets standard; If contrary not by gap, then illustrate that flatness is not up to standard, need to return again to process, the utility model structure is simple, easily operates, saves time, be suitable for use of large-scale production.
Claims (4)
1. a gear piece testing flatness device, it is characterized in that, comprise front apron (1), pad (2), backboard (3) and holding screw (4), pad (2) is provided with between front apron (1) and backboard (3), pad (2) is positioned at four corner position places of front apron (1), front apron (1), pad (2) is connected by holding screw (4) successively with backboard (3), front apron (1) is concordant with the lower end of backboard (3), the length that the upper part of backboard (3) exceeds front apron (1) is 30 millimeters ~ 50 millimeters, the thickness of pad (2) is 2.1 millimeters.
2. a kind of gear piece testing flatness device according to claim 1, is characterized in that, described front apron (1) and backboard (3) are high-strength abrasion-proof steel plate.
3. a kind of gear piece testing flatness device according to claim 1, is characterized in that, described front apron (1) and the thickness of backboard (3) are 10 millimeters ~ 15 millimeters.
4. a kind of gear piece testing flatness device according to claim 1, is characterized in that, described pad (2) adopts 304 stainless steels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420534164.8U CN204154262U (en) | 2014-09-17 | 2014-09-17 | Gear piece testing flatness device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420534164.8U CN204154262U (en) | 2014-09-17 | 2014-09-17 | Gear piece testing flatness device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204154262U true CN204154262U (en) | 2015-02-11 |
Family
ID=52512367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420534164.8U Expired - Fee Related CN204154262U (en) | 2014-09-17 | 2014-09-17 | Gear piece testing flatness device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204154262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036705A (en) * | 2017-12-15 | 2018-05-15 | 平湖市海特合金有限公司 | Slim leaf flatness inspection instrument |
-
2014
- 2014-09-17 CN CN201420534164.8U patent/CN204154262U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036705A (en) * | 2017-12-15 | 2018-05-15 | 平湖市海特合金有限公司 | Slim leaf flatness inspection instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20180917 |