CN204123293U - A kind of location structure of tooth bar - Google Patents
A kind of location structure of tooth bar Download PDFInfo
- Publication number
- CN204123293U CN204123293U CN201420421943.7U CN201420421943U CN204123293U CN 204123293 U CN204123293 U CN 204123293U CN 201420421943 U CN201420421943 U CN 201420421943U CN 204123293 U CN204123293 U CN 204123293U
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- China
- Prior art keywords
- tooth bar
- elongated slot
- waist
- location structure
- circular apertures
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- 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.)
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Abstract
The utility model provides a kind of location structure of tooth bar, comprise mainframe, tooth bar, it is characterized in that: on described mainframe, be provided with the elongated slot for installing described tooth bar, be provided with a circular apertures for locating described tooth bar and two waist-shaped holes at the middle part of described elongated slot side, described waist-shaped hole centered by described circular apertures along symmetrical on elongated slot length direction; Described tooth bar is provided with the cylinder boss for locate corresponding with described circular apertures and waist-shaped hole position; Described elongated slot and tooth bar correspondence position arrange at least one screw hole for the equal number of stationary rack.Beneficial effect: a kind of location structure of tooth bar, the cylinder boss of tooth bar is positioned on circular apertures and waist-shaped hole, re-use screw to be fixed by the screw hole of tooth bar and elongated slot, tooth bar is fixed on mainframe accurately, and waist-shaped hole provides space for two ends Light deformation, can effectively prevent from expanding with heat and contract with cold the severe bends problem caused due to tooth bar.
Description
Technical field
The utility model relates to a kind of structure of tooth bar, particularly relates to a kind of location structure of tooth bar.
Background technology
Along with the reach of science, gear slowly changes plastic gear into by metal gear.Because plastic gear has more lubricity and wearability.Can noise be reduced, reduce costs, reduce friction.Seem most important when use gear to the location of tooth bar, in prior art, often just the simple screw that uses positions and fixes, and the easy like this tooth bar that causes misplaces when assembling and distortion; And the impact that the tooth bar of plastics is easily expanded with heat and contract with cold, easily causes bending, thus has an impact to whole tooth bar.
Utility model content
The location structure structure that the utility model provides a kind of tooth bar is comparatively simple, solves tooth bar location and fixing and effectively prevent from expanding with heat and contract with cold the problem brought due to tooth bar.
In order to solve the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of location structure of tooth bar, comprise mainframe, tooth bar, it is characterized in that: on described mainframe, be provided with the elongated slot for installing described tooth bar, be provided with a circular apertures for locating described tooth bar and two waist-shaped holes at the middle part of described elongated slot side, described waist-shaped hole centered by described circular apertures along symmetrical on elongated slot length direction; Described tooth bar is provided with the cylinder boss for locate corresponding with described circular apertures and waist-shaped hole position.
Further, described mainframe bilateral symmetry be provided with two elongated slots.
Further, described elongated slot and tooth bar correspondence position are arranged at least one screw hole for the equal number of stationary rack.
Further, the screw hole quantity of described tooth bar is five.
Again further, the material of described tooth bar is plastics.
Further, described elongated slot and horizontal plane angled.
Further, described elongated slot becomes 45 degree or 60 degree with horizontal plane
The location structure of a kind of tooth bar that the utility model provides, the cylinder boss of tooth bar is positioned on circular apertures and waist-shaped hole, re-use screw to be fixed by the screw hole of tooth bar and elongated slot, tooth bar is fixed on mainframe accurately, and waist-shaped hole provides space for two ends Light deformation, can effectively prevent from expanding with heat and contract with cold the severe bends problem caused due to tooth bar.
Accompanying drawing explanation
Fig. 1 is the structural representation of the location structure of a kind of tooth bar in the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model specific embodiment is described.
The location structure of the tooth bar in mainframe 1 side as shown in Figure 1, a kind of location structure of tooth bar, comprise mainframe 1, tooth bar 6, it is characterized in that: on described mainframe 1, be provided with the elongated slot 2 for installing described tooth bar 6, be provided with the circular apertures 4 for locating described tooth bar 6 and two waist-shaped holes 3 at the middle part of described elongated slot 2 side, described waist-shaped hole 3 centered by described circular apertures 4 along symmetrical on elongated slot 2 length direction; Described tooth bar 6 is provided with the cylinder boss 7 for locate corresponding with described circular apertures 4 and waist-shaped hole 3 position; Described elongated slot 2 and tooth bar 6 correspondence position arrange at least one screw hole 5 for the equal number of stationary rack 6.According to specific design requirement, the bilateral symmetry of described mainframe 1 can be provided with two elongated slots 2.In the present embodiment, screw hole 5 quantity of described tooth bar 6 is five.The material of described tooth bar 6 is plastics.Described elongated slot 2 is angled with horizontal plane.Described elongated slot 2 becomes 45 degree or 60 degree with horizontal plane.
The location structure of a kind of tooth bar that the utility model provides, the cylinder boss of tooth bar is positioned on circular apertures and waist-shaped hole, re-use screw to be fixed by the screw hole of tooth bar and elongated slot, tooth bar is fixed on mainframe accurately, and waist-shaped hole provides space for two ends Light deformation, can effectively prevent from expanding with heat and contract with cold the severe bends problem caused due to tooth bar.
Above disclosedly be only preferred embodiment of the present utility model, rights protection scope of the present utility model can not be limited with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (7)
1. the location structure of a tooth bar, comprise mainframe, tooth bar, it is characterized in that: on described mainframe, be provided with the elongated slot for installing described tooth bar, be provided with a circular apertures for locating described tooth bar and two waist-shaped holes at the middle part of described elongated slot side, described waist-shaped hole centered by described circular apertures along symmetrical on elongated slot length direction; Described tooth bar is provided with the cylinder boss for locate corresponding with described circular apertures and waist-shaped hole position.
2. the location structure of a kind of tooth bar according to claim 1, is characterized in that: described mainframe bilateral symmetry be provided with two elongated slots.
3. the location structure of a kind of tooth bar according to claim 1, is characterized in that: on described elongated slot and tooth bar correspondence position, arrange at least one screw hole for the equal number of stationary rack.
4. the location structure of a kind of tooth bar according to claim 3, is characterized in that: the screw hole quantity of described tooth bar is five.
5. the location structure of a kind of tooth bar according to any one of claim 1-4, is characterized in that: the material of described tooth bar is plastics.
6. the location structure of a kind of tooth bar according to claim 1, is characterized in that: described elongated slot and horizontal plane angled.
7. the location structure of a kind of tooth bar according to claim 5, is characterized in that: described elongated slot becomes 45 degree or 60 degree with horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420421943.7U CN204123293U (en) | 2014-07-29 | 2014-07-29 | A kind of location structure of tooth bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420421943.7U CN204123293U (en) | 2014-07-29 | 2014-07-29 | A kind of location structure of tooth bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204123293U true CN204123293U (en) | 2015-01-28 |
Family
ID=52379682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420421943.7U Active CN204123293U (en) | 2014-07-29 | 2014-07-29 | A kind of location structure of tooth bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204123293U (en) |
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2014
- 2014-07-29 CN CN201420421943.7U patent/CN204123293U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |