CN216407557U - Face gear locking device - Google Patents
Face gear locking device Download PDFInfo
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- CN216407557U CN216407557U CN202122440060.3U CN202122440060U CN216407557U CN 216407557 U CN216407557 U CN 216407557U CN 202122440060 U CN202122440060 U CN 202122440060U CN 216407557 U CN216407557 U CN 216407557U
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- main shaft
- gear
- face gear
- fixed
- cross
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Abstract
A face gear locking device comprises 2 symmetrically arranged face gear supports, a limiting groove is arranged on each face gear support, a main shaft is arranged between the 2 face gear supports, a flange structure is arranged on the outer side of the main shaft, the upper end of the flange structure is provided with a moving gear, the upper end of the moving gear is provided with a fixed gear, a main shaft retainer is arranged between the fixed gear and the main shaft, a main shaft steel ball is arranged in the main shaft retainer, the upper end of the main shaft retainer is provided with a main shaft end cover, the upper end of the fixed gear is fixed with a cross, the left end and the right end of the cross are respectively clamped in limiting grooves on 2 face gear supports through press plates, the upper end surfaces of the left and right ends of the cross are respectively provided with an end blind hole, a spring is arranged in the end blind hole, the upper end of the spring is provided with a gasket, and the pressure plate is provided with an adjusting screw hole corresponding to the blind hole at the end part, and the adjusting screw hole is provided with an adjusting screw. The utility model can realize the locking of the shafting and can also keep the positioning precision of the shafting.
Description
Technical Field
The utility model relates to a locking device, in particular to a normally closed face gear locking device.
Background
In some application occasions, impact force has great influence on the precision of a shaft system, and is not beneficial to realizing the precision of a precise angular position; for example, the vehicle-mounted equipment uses the test equipment in the traveling process, the ship-mounted equipment needs to use the test equipment under the condition of encountering severe sea conditions, the vehicle-mounted equipment uses the test equipment in the environment with engine vibration, and the precise shafting needs to be locked under the conditions.
The commonly used mechanical shafting locking mechanism comprises an electromagnetic locking brake, an expansion (compression) locking mechanism, a pin locking mechanism, an end gear locking mechanism and the like. Wherein move the tooth and all pass through precision finishing with the fixed tooth in the end gear locking mechanism, mechanical resolution ratio minimum can realize 1 degree, and positioning accuracy is 0.2 angular seconds, and the number of teeth of terminal surface movable tooth and fixed gear among the end gear locking mechanism of this case application is 72 teeth, and both intermeshing can realize that two shafting mechanical position resolutions are 5 degrees.
The existing solutions include: the method comprises the following steps of electromagnetic clutch application scene analysis, thin-wall sleeve application scene analysis and pin locking application scene analysis.
Analysis of electromagnetic clutch application scene: the mechanical locking mode is mainly an electromagnetic clutch after the rotating shaft is in place, the locking mode has noise, the position quantity can be changed after the locking, and the locking mode is not suitable for the working condition of less than +/-2 arc seconds.
Thin-wall sleeve application scene analysis: by means of the thin-wall sleeve, the thin-wall sleeve is expanded or compressed on the circumference, the rotating shaft is locked by means of deformation of the thin-wall sleeve, and the locking force is difficult to control in the mode.
And (3) analyzing an application scene of pin locking: a plurality of groups of holes are machined in specific positions on the rotary disc, and pins are inserted into the required positions to lock the shafting.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a face gear locking device to solve the above problems of the prior art.
The technical scheme adopted for achieving the purpose is that the face gear locking device comprises 2 symmetrically-arranged face gear supports, limiting grooves are formed in the face gear supports, a main shaft is arranged between the 2 face gear supports, a flange structure is arranged on the outer side of the main shaft, a movable gear is arranged at the upper end of the flange structure, a fixed gear is arranged at the upper end of the movable gear, a main shaft retainer is arranged between the fixed gear and the main shaft, a main shaft steel ball is installed in the main shaft retainer, a main shaft end cover is arranged at the upper end of the main shaft retainer, a cross is fixed at the upper end of the fixed gear, the left end and the right end of the cross are respectively installed in the limiting grooves in the 2 face gear supports through pressing plates, end blind holes are formed in the upper end faces of the left end and the right end of the cross, springs are arranged in the end blind holes, gaskets are arranged at the upper ends of the springs, adjusting screw holes corresponding to the end blind holes are formed in the pressing plates, and the adjusting screw hole is provided with an adjusting screw.
Further, the moving gear and the fixed gear are meshed with each other.
Furthermore, the pressing plate is positioned at the upper end of the limiting groove and is fixedly connected with the end face gear support through a fixing screw.
Furthermore, the front end and the rear end of the cross are located between the 2 face gear supports, lateral parts of the front end and the rear end of the cross are respectively provided with a lateral retainer, lateral steel balls are arranged in the lateral retainers, and lateral pressing plates for limiting the lateral retainers are fixed on the end faces of the front end and the rear end of the cross.
Furthermore, the main shaft is fixed at the upper end of the movable base, a fixed base is arranged on the outer side of the movable base, and 2 face gear supports are symmetrically fixed at the upper end of the fixed base.
Furthermore, the upper end faces of the front end and the rear end of the cross are provided with upper blind holes.
Advantageous effects
Compared with the prior art, the utility model has the following advantages.
1. The face gear locking assembly is designed to be a normally closed assembly and can be arranged at the tail end of a precision shaft system to realize precision mechanical positioning; in actual use, the external force is applied along the axial direction to realize disengagement, and the external force is cancelled to realize automatic locking;
2. the pretightening force between the fixed gear and the movable gear in the end face gear locking assembly can be adjusted according to actual requirements, and the end face gear locking assembly can be conveniently used in different application occasions, particularly occasions with external impact force;
3. the face gear locking assembly is designed according to a modularization method, so that pre-production is favorably realized, and the production efficiency is favorably improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a front view of a cross-sectional structure of the present invention;
FIG. 2 is a top view of a cross-sectional structure of the present invention;
FIG. 3 is a schematic of the three-dimensional structure of the present invention;
FIG. 4 is a structural elevation of the present invention;
FIG. 5 is a side view of the structure of the present invention;
FIG. 6 is a top view of the structure of the present invention;
FIG. 7 is a schematic structural view of a face gear carrier of the present invention;
FIG. 8 is a top plan view of the face gear carrier of the present invention;
FIG. 9 is a schematic view of the cross of the present invention;
FIG. 10 is a top view of the cross of the present invention;
FIG. 11 is a schematic view of the construction of the moving gear of the present invention;
FIG. 12 is a schematic view showing the construction of a fixed gear in the present invention;
fig. 13 is a schematic diagram of an application of the present invention.
Detailed Description
The utility model is further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1-13, a face gear locking device comprises 2 symmetrically arranged face gear supports 1, a limiting groove 8 is arranged on each face gear support 1, a main shaft 12 is arranged between 2 face gear supports 1, a flange structure 9 is arranged on the outer side of the main shaft 12, a moving gear 11 is arranged at the upper end of the flange structure 9, a fixed gear 10 is arranged at the upper end of the moving gear 11, a main shaft retainer 7 is arranged between the fixed gear 10 and the main shaft 12, a main shaft steel ball 6 is arranged in the main shaft retainer 7, a main shaft end cover 5 is arranged at the upper end of the main shaft retainer 7, a cross 4 is fixed at the upper end of the fixed gear 10, the left end and the right end of the cross 4 are respectively clamped in the limiting groove 8 on the 2 face gear supports 1 through a pressing plate 3, end blind holes 17 are arranged on the upper end faces at the left end and the right end of the cross 4, a spring 2 is arranged in the end blind hole 17, the upper end of the spring 2 is provided with a gasket 18, the pressure plate 3 is provided with an adjusting screw hole 16 corresponding to the end blind hole 17, and the adjusting screw hole 16 is provided with an adjusting screw 19.
The flange structure 9 is fixedly connected with the outer side wall of the lower end of the main shaft 12, the moving gear 11 sleeved on the main shaft 12 is fixed at the upper end of the flange structure 9, and the fixed gear 10 sleeved on the main shaft 12 is meshed at the upper end of the moving gear 11.
The pressing plate 3 is positioned at the upper end of the limiting groove 8 and is fixedly connected with the face gear support 1 through a fixing screw.
The front end and the rear end of the cross 4 are located between the 2 face gear supports 1, lateral parts of the front end and the rear end of the cross 4 are respectively provided with a lateral retainer 14, a lateral steel ball 13 is arranged in the lateral retainer 14, and lateral pressing plates 15 used for limiting the lateral retainers 14 are fixed on the end faces of the front end and the rear end of the cross 4.
The main shaft 12 is fixed at the upper end of the movable base 21, the fixed base 22 is arranged on the outer side of the movable base 21, and the end face gear supports 1 are symmetrically fixed at the upper end of the fixed base 22.
And the upper end faces of the front end and the rear end of the cross 4 are provided with upper blind holes 20.
In the utility model, the cross 4 drives the fixed gear 10 to slide up and down along the main shaft 12, and the main shaft 12 drives the gear 11 to rotate around the main shaft 12; all be equipped with tip blind hole 17 on the up end at both ends about cross 4, put into spring 2 in tip blind hole 17, 2 individual face gear support 1 is symmetrical arrangement's components of a whole that can function independently structure to 2 individual face gear support 1's lower terminal surface coplane can indirectly adjust the locking force of fixed gear 10 and moving gear 11 through the screw in volume of adjusting 2 adjusting screw 19.
The working principle of the utility model is that the face gear bracket 1 and the main shaft 12 are respectively connected with the fixed base 22 and the movable base 21 in actual use, external force is used for applying pulling force to the cross 4 along the axial direction, so that the fixed gear 10 and the movable gear 11 can be separated, at the moment, the main shaft 12 can be freely rotated, the external force can be removed after the main shaft is rotated to a specified position, the locking between the movable gear 11 and the fixed gear 10 is realized by the pressing force of the mechanism, and further the locking of the rotating shaft is realized; and the adjusting screw 19 is used for adjusting the telescopic length of the spring 2, so as to adjust the pretightening force between the fixed gear 10 and the movable gear 11, and the pretightening force aims to realize the locking of the shafting and keep the positioning precision of the shafting.
When the utility model is implemented, the mounting end faces for supporting the main shaft 12 and the face gear support 1 are two different end faces, the main shaft 12 is mounted on the end face of the movable base 21, the face gear support 1 is mounted on the end face of the fixed base 22, and the distance between the end faces of the movable base 21 and the fixed base 22 is 2.5 mm.
A main shaft 12 is used as a support, a moving gear 11 is fixed on a flange structure 9 on the side wall of the main shaft 12 through screws, a main shaft retainer 7 is installed on the outer cylindrical surface of the main shaft 12, a main shaft steel ball 6 is embedded in the main shaft retainer 7, a main shaft end cover 5 is fixed at the upper end of the main shaft 12 through screws and used for axially fixing the main shaft retainer 7, a fixed gear 10 is sleeved into the main shaft 12 and matched with the main shaft steel ball 6 in the radial direction, and the fixed gear 10 moves downwards to be meshed with the moving gear 11.
Fixing 2 end face gear supports 1 which are symmetrically arranged in a split mode on a fixed base 22 through screws, wherein the inner cylindrical surface of each end face gear support 1 is concentric with the outer cylindrical surface of a fixed gear 10; the cross 4 is inserted into the limiting groove 8 on the face gear bracket 1 in sequence, a pair of side retainers 14 are respectively arranged at two ends of the split part of the 2 face gear brackets 1, side steel balls 13 are arranged in the side retainers 14, side pressing plates 15 are fixed at the front end and the rear end of the cross 4 by screws, and after the installation is finished, the cross 14 is ensured to slide smoothly along the axial direction.
A spring 2 and a gasket 18 are sequentially arranged in blind holes 17 at the left end and the right end of the cross 4, the upper end of the gasket 18 is pressed by a pressing plate 3, an adjusting screw hole 16 on the pressing plate 3 is screwed into an adjusting screw 19, and the pressing plate 3 is fixed on the face gear bracket 1 by screws;
the cross 4 is fixed on the upper end face of the fixed gear 10 by using a screw, external force is applied to the cross 4 along the axial direction to realize the disengagement of the fixed gear 10 and the moving gear 11, and after the external force is removed, the fixed gear 10 and the moving gear 11 are automatically locked by depending on the self characteristics.
After the fixed gear 10 and the moving gear 11 are disengaged, the moving gear 11 is driven by the main shaft 12 to rotate around the axis; the fixed gear 10 is inhibited from sliding downward during the rotation of the moving gear 11, which may otherwise deteriorate the accuracy of the external teeth, and the fixed gear 10 may slowly slide downward when the moving gear 11 reaches a fixed position.
The end face gear locking assembly can increase or decrease the number of teeth according to the actual resolution requirement in practical application so as to meet different application occasions.
The face gear locking assembly is a normally closed assembly and can be arranged at the tail end of a precision shaft system to realize precision mechanical positioning; in actual use, the external force is applied along the axial direction to realize disengagement, and the external force is cancelled to realize automatic locking; the pretightening force between the fixed gear and the movable gear in the end face gear locking assembly can be adjusted according to actual requirements, and the end face gear locking assembly can be conveniently used in different application occasions, particularly occasions with external impact force; the face gear locking assembly is designed according to a modularization method, so that pre-production is favorably realized, and the production efficiency is favorably improved.
Claims (6)
1. An end face gear locking device comprises 2 end face gear supports (1) which are symmetrically arranged, and is characterized in that limiting grooves (8) are formed in the end face gear supports (1), a main shaft (12) is arranged between the 2 end face gear supports (1), a flange structure (9) is arranged on the outer side of the main shaft (12), a moving gear (11) is arranged at the upper end of the flange structure (9), a fixed gear (10) is arranged at the upper end of the moving gear (11), a main shaft retainer (7) is arranged between the fixed gear (10) and the main shaft (12), a main shaft steel ball (6) is installed in the main shaft retainer (7), a main shaft end cover (5) is arranged at the upper end of the main shaft retainer (7), a cross (4) is fixed at the upper end of the fixed gear (10), and the left end and the right end of the cross (4) are respectively clamped in the limiting grooves (8) in the 2 end face gear supports (1) through pressing plates (3), the cross is characterized in that end part blind holes (17) are formed in the upper end faces of the left end and the right end of the cross (4), springs (2) are arranged in the end part blind holes (17), gaskets (18) are arranged at the upper ends of the springs (2), adjusting screw holes (16) corresponding to the end part blind holes (17) are formed in the pressing plate (3), and adjusting screws (19) are installed on the adjusting screw holes (16).
2. A face gear locking device as claimed in claim 1, wherein the flange structure (9) is fixedly connected with the outer side wall of the lower end of the main shaft (12), the upper end of the flange structure (9) is fixed with a movable gear (11) sleeved on the main shaft (12), and the upper end of the movable gear (11) is engaged with a fixed gear (10) sleeved on the main shaft (12).
3. A face gear locking arrangement as claimed in claim 1, characterised in that the pressure plate (3) is located at the upper end of the limit groove (8) and is fixedly connected to the face gear carrier (1) by means of fixing screws.
4. A face gear locking device according to claim 1, characterized in that the front and back ends of the cross (4) are located between 2 face gear brackets (1), the side parts of the front and back ends of the cross (4) are respectively provided with a side retainer (14), the side retainer (14) is internally provided with a side steel ball (13), and the end surfaces of the front and back ends of the cross (4) are respectively fixed with a side pressing plate (15) for limiting the side retainer (14).
5. A face gear locking device as claimed in claim 1, wherein the main shaft (12) is fixed on the upper end of a movable base (21), a fixed base (22) is arranged on the outer side of the movable base (21), and 2 face gear supports (1) are symmetrically fixed on the upper end of the fixed base (22).
6. A face gear locking arrangement as claimed in claim 1, characterised in that the cross (4) is provided with blind upper holes (20) in its upper faces at the front and rear ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122440060.3U CN216407557U (en) | 2021-10-11 | 2021-10-11 | Face gear locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122440060.3U CN216407557U (en) | 2021-10-11 | 2021-10-11 | Face gear locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216407557U true CN216407557U (en) | 2022-04-29 |
Family
ID=81294459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122440060.3U Active CN216407557U (en) | 2021-10-11 | 2021-10-11 | Face gear locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216407557U (en) |
-
2021
- 2021-10-11 CN CN202122440060.3U patent/CN216407557U/en active Active
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