CN212329902U - Double-sided gear's gear hobbing frock for engineering elevator - Google Patents
Double-sided gear's gear hobbing frock for engineering elevator Download PDFInfo
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- CN212329902U CN212329902U CN202020235245.3U CN202020235245U CN212329902U CN 212329902 U CN212329902 U CN 212329902U CN 202020235245 U CN202020235245 U CN 202020235245U CN 212329902 U CN212329902 U CN 212329902U
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Abstract
The utility model discloses a double-sided gear's for engineering elevator gear hobbing frock, include by the lower supreme tool base that sets gradually, the positioning seat, gasket and inflation cover, tool base middle part, positioning seat middle part and inflation cover middle part all are equipped with the through-hole that is used for tensioning screw to pass, the tool base upper end is equipped with the groove that is used for holding engineering elevator double-sided gear center pin, the gasket, the positioning seat all sets up at the inslot, the gasket middle part be equipped with the inflation cover under the shoulder hole of tip shape adaptation, the gasket, the positioning seat passes through bolt fixed connection with tool base, inflation cover upper end is inserted and is established in the shaft hole of double-sided gear center pin. The utility model discloses simple structure, installation and easy and simple to handle, the gear rocks when avoiding the gear hobbing, ensures the machining precision of gear to can follow the supplementary taut of frock base side when can be not hard up to the screw rod of tightening after the installation.
Description
Technical Field
The utility model relates to an engineering is double-sided gear's gear hobbing frock for elevator.
Background
Hobbing is the principle of generating processes to machine gears. The hobbing cutter is used for processing the opposite wheel and is equivalent to the meshing of a helical gear pair. The hobbing gear belongs to a generating method, and can be regarded as a gear without meshing clearance and a rack for transmission. When the hobbing cutter rotates for one circle, the rack is equivalent to move a cutter tooth in the normal direction, and the hobbing cutter continuously transmits the gear as if an infinitely long rack continuously moves. When the hob and the gear hobbing blank are in forced meshing transmission according to the transmission ratio of the gear to the rack strictly, the envelope curves of the hob teeth on a series of positions form the involute tooth profile of a workpiece. With the vertical feeding of the hob, the required involute tooth profile can be rolled out. And during gear hobbing, the gear precision that can guarantee the gear hobbing and process should guarantee that the gear does not rock, and to some gear hobbing frocks in addition, the frock base is blockked after installing, if the taut screw rod is not hard up then there is no way this moment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect that exists among the prior art, provide a double-sided gear's for engineering elevator gear hobbing frock, its simple structure, installation and easy and simple to handle, the gear rocks when avoiding the gear hobbing, ensures the machining precision of gear to can follow the supplementary taut of frock base side when not hard up to the screw rod of straining after the installation.
For realizing above-mentioned mesh, the technical scheme of the utility model a design a double-sided gear's for engineering elevator gear hobbing frock, include by the lower supreme frock base that sets gradually, the positioning seat, gasket and inflation cover, frock base middle part, positioning seat middle part and inflation cover middle part all are equipped with the through-hole that is used for tensioning screw to pass, frock base upper end is equipped with the groove that is used for holding engineering elevator double-sided gear center pin, the gasket, the positioning seat all sets up at the inslot, the gasket middle part be equipped with the shoulder hole of tip shape adaptation under the inflation cover, the gasket, the positioning seat passes through bolt fixed connection with frock base, inflation cover upper end is inserted and is established in the shaft hole of double-sided.
The further technical scheme is that a groove formed in the upper end of the tool base is a circular groove, the gasket and the positioning seat are disc-shaped, and the outer diameters of the gasket and the positioning seat are equivalent to the inner diameter of the circular groove.
The further technical scheme is that the lower end of the expansion sleeve is in a stepped cylindrical shape with a small upper part and a large lower part, and the diameter of the large-size cylinder at the lower end of the expansion sleeve is larger than the aperture of the through hole in the middle of the positioning seat. This scheme simple structure, simple to operate, put the positioning seat to fixture base's groove, embolia the back from the inflation cover upper end with the gasket and make the shoulder hole of gasket and inflation cover lower extreme to close and insert the upper end of inflation cover in the shaft hole of engineering elevator double-sided gear center pin, and insert the shaft hole with take-up screw from the upper end, then place fixture base's groove with engineering elevator double-sided gear center pin and inflation cover, then from the taut take-up screw in fixture base bottom and fix tightly, later fix fixture base to the machine mesa on just can carry out the gear hobbing work.
The tool base is provided with a tool hole which is vertical to and communicated with the through hole and used for assisting tensioning, an auxiliary tensioning mechanism which can be inserted into the tool hole is matched with the tool hole, and the surface of the middle part of the tensioning screw rod is provided with a rack which is engaged with the auxiliary tensioning mechanism in a matching manner.
The further technical scheme is that the auxiliary tensioning mechanism comprises an auxiliary rod, a gear meshed with the toothed surface of the tensioning screw is fixedly arranged at the end part of the auxiliary rod positioned in the tool hole, an external thread is arranged at the end part of the auxiliary rod positioned outside the tool hole, and an internal thread matched with the external thread is arranged on the inner side wall of the tool hole close to the orifice. After the arrangement, the problem that the tightening screw cannot be fastened when the tightening screw is loosened after the tool base is fixed on the table top is solved, the tightening screw can be driven to move downwards by the gear by inserting the auxiliary rod to enable the gear to be meshed with the rack-shaped surface of the tightening screw and then screwing the tightening screw, and the tool hole is provided with a section of internal thread matched with the auxiliary rod, so that after screwing, auxiliary tightening can be realized by arranging a nut at the exposed end of the auxiliary rod in a matched mode (namely the tightening screw is lowered to the condition that the expansion sleeve is tightly pulled downwards) to fix and keep the tightening fixing state at the moment, the gear is better meshed with the surface of the tightening screw, a square rod can be arranged in the middle of the tightening screw, and the two ends of the tightening screw are still round rods.
The utility model has the advantages and the beneficial effects that: simple structure, installation and easy and simple to handle, the gear rocks when avoiding the gear hobbing, ensures the machining precision of gear to can follow the supplementary taut of frock base side when not hard up to the screw rod of straining after the installation. This scheme simple structure, simple to operate, put the positioning seat to fixture base's groove, embolia the back from the inflation cover upper end with the gasket and make the shoulder hole of gasket and inflation cover lower extreme to close and insert the upper end of inflation cover in the shaft hole of engineering elevator double-sided gear center pin, and insert the shaft hole with take-up screw from the upper end, then place fixture base's groove with engineering elevator double-sided gear center pin and inflation cover, then from the taut take-up screw in fixture base bottom and fix tightly, later fix fixture base to the machine mesa on just can carry out the gear hobbing work. The problem that the tightening screw cannot be fastened when the tightening screw is loosened after the tool base is fixed on the table top is solved, the tightening screw can be driven to move downwards through the gear by inserting the auxiliary rod to enable the gear to be meshed with the rack-shaped surface of the tightening screw and then screwing the tightening screw, and the tool hole is provided with a section of internal thread matched with the auxiliary rod, so that after screwing, auxiliary tightening can be achieved by arranging a nut at the exposed end of the auxiliary rod in a matched mode (namely the tightening screw descends to the condition that the expansion sleeve is tightly pulled downwards) and the tightening and fixing state at the moment is kept.
Drawings
Fig. 1 is a schematic view of a hobbing tool for a double-sided gear for an engineering elevator of the present invention;
fig. 2 is an exploded view of the tooling base and auxiliary tensioning mechanism of fig. 1.
In the figure: 1. a tooling base; 2. positioning seats; 3. a gasket; 4. an expansion sleeve; 5. tensioning the screw rod; 6. a groove; 7. a bolt; 8. a central shaft; 9. a tool hole; 10. an auxiliary lever; 11. a gear; 12. an external thread; 13. an internal thread.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-2 (for convenience of illustration, supplementary straining device is not shown in fig. 1), the utility model relates to a double-sided gear's gear hobbing frock for engineering elevator, include by lower supreme frock base 1 that sets gradually, positioning seat 2, gasket 3 and inflation cover 4, frock base 1 middle part, positioning seat 2 middle part and inflation cover 4 middle part all are equipped with the through-hole that is used for tensioning screw 5 to pass, frock base 1 upper end is equipped with the groove 6 that is used for holding engineering elevator double-sided gear center pin 8, gasket 3, positioning seat 2 all sets up in groove 6, gasket 3 middle part be equipped with the shoulder hole of the tip shape adaptation under the inflation cover 4, gasket 3, positioning seat 2 passes through bolt 7 fixed connection with frock base 1, inflation cover 4 upper end is inserted and is established in the shaft hole of double-sided gear center pin 8. The groove 6 that the upper end of fixture base 1 set up is the circular slot, and gasket 3 and positioning seat 2 are discoid, and the external diameter of gasket 3, positioning seat 2 is equivalent with the internal diameter of circular slot. The lower end of the expansion sleeve 4 is in a stepped cylindrical shape with a small upper part and a big lower part, and the diameter of the large-size cylinder at the lower end of the expansion sleeve 4 is larger than the aperture of the through hole in the middle of the positioning seat 2. The tool base 1 is provided with a tool hole 9 which is vertical to and communicated with the through hole and used for assisting tensioning, an auxiliary tensioning mechanism which can be inserted into the tool hole 9 is arranged in cooperation with the tool hole 9, and the surface of the middle part of the tensioning screw rod 5 is provided with a rack shape which is in fit engagement with the auxiliary tensioning mechanism. The auxiliary tensioning mechanism comprises an auxiliary rod 10, a gear 11 meshed with the rack surface of the tensioning screw 5 is fixedly arranged at the end part of the auxiliary rod 10 positioned in the tool hole 9, an external thread 12 is arranged at the end part of the auxiliary rod 10 positioned outside the tool hole 9, and an internal thread 13 matched with the external thread 12 is arranged on the inner side wall of the tool hole 9 close to the hole opening.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides an engineering is double sided gear's for elevator gear hobbing frock, a serial communication port, include by the lower supreme frock base that sets gradually, the positioning seat, gasket and inflation cover, frock base middle part, positioning seat middle part and inflation cover middle part all are equipped with the through-hole that is used for taut screw to pass, the frock base upper end is equipped with the groove that is used for holding engineering elevator double sided gear center pin, the gasket, the positioning seat all sets up at the inslot, the gasket middle part be equipped with the inflation cover under the shoulder hole of tip shape adaptation, the gasket, the positioning seat passes through bolt fixed connection with frock base, the inflation cover upper end is inserted and is established in the shaft hole of.
2. The hobbing tool for the double-sided gear for the engineering elevator as claimed in claim 1, wherein the groove formed in the upper end of the tool base is a circular groove, the gasket and the positioning seat are disc-shaped, and the outer diameters of the gasket and the positioning seat are equal to the inner diameter of the circular groove.
3. The hobbing tool for the double-sided gear of the engineering elevator as claimed in claim 2, wherein the lower end of the expansion sleeve is in a stepped cylindrical shape with a small upper part and a large lower part, and the diameter of the large-size cylinder at the lower end of the expansion sleeve is larger than the aperture of the through hole in the middle of the positioning seat.
4. The hobbing tool for the double-sided gear for the engineering elevator as claimed in claim 1 or 3, wherein a tool hole perpendicular to and communicated with the through hole and used for assisting tensioning is formed in the tool base, an auxiliary tensioning mechanism capable of being inserted into the tool hole is arranged in cooperation with the tool hole, and a rack shape in fit engagement with the auxiliary tensioning mechanism is arranged on the surface of the middle of the tensioning screw.
5. The hobbing tool for the double-sided gear of the engineering elevator as claimed in claim 4, wherein the auxiliary tensioning mechanism comprises an auxiliary rod, a gear meshed with the rack-shaped surface of the tensioning screw is fixedly arranged at the end part of the auxiliary rod in the tool hole, an external thread is arranged at the end part of the auxiliary rod outside the tool hole, and an internal thread matched with the external thread is arranged on the inner side wall of the tool hole close to the hole opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020235245.3U CN212329902U (en) | 2020-03-02 | 2020-03-02 | Double-sided gear's gear hobbing frock for engineering elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020235245.3U CN212329902U (en) | 2020-03-02 | 2020-03-02 | Double-sided gear's gear hobbing frock for engineering elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212329902U true CN212329902U (en) | 2021-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020235245.3U Active CN212329902U (en) | 2020-03-02 | 2020-03-02 | Double-sided gear's gear hobbing frock for engineering elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212329902U (en) |
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2020
- 2020-03-02 CN CN202020235245.3U patent/CN212329902U/en active Active
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