CN210664502U - Permanent flat ring mounting structure of magnetic compass - Google Patents
Permanent flat ring mounting structure of magnetic compass Download PDFInfo
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- CN210664502U CN210664502U CN201921761004.6U CN201921761004U CN210664502U CN 210664502 U CN210664502 U CN 210664502U CN 201921761004 U CN201921761004 U CN 201921761004U CN 210664502 U CN210664502 U CN 210664502U
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- flat ring
- shaft
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- external thread
- optical axis
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Abstract
The utility model discloses a magnetic compass permanent flat ring mounting structure, which comprises a permanent flat ring, a compass shaft and a first positioning nut; two internal thread through holes are formed in the upper edge of the permanent flat ring along the diameter of the permanent flat ring and used for mounting the cone shaft; the cone roller shaft comprises an external thread shaft section and an optical axis section, wherein the external thread shaft section is in threaded fit with an internal thread through hole in the perpetual flat ring, the optical axis section is rotatably mounted with the cone roller, the external thread shaft section is coaxial with the optical axis section, the diameter of the external thread shaft section is larger than that of the optical axis section, the external thread shaft section and the optical axis section are of an integrated structure, and a screwing part for applying screwing acting force is arranged on the outer end face of the external thread shaft section; the first positioning nut is installed on the external thread shaft section of the rib basin shaft, and during installation, the first positioning nut is tightly propped against the inner wall of the permanent flat ring, so that the installation positions of the rib basin shaft and the permanent flat ring are fixed, and the rib basin shaft is prevented from moving.
Description
Technical Field
The utility model belongs to the technical field of the magnetism compass device, concretely relates to magnetic compass is flat ring mounting structure forever.
Background
Magnetic compass, also known as magnetic compass, is a device for determining a directional reference for determining a heading and an orientation of an observed object. The instrument is an instrument which is made by utilizing the characteristic that the magnetic needle stably points to the north under the action of the geomagnetism and indicates the geographical direction. The magnetic compass mainly comprises a compass basin and a compass cabinet, wherein the compass basin is a bowl-shaped copper basin or a bowl-shaped object made of other non-magnetic materials for installing a compass pointing system.
The permanent flat ring is a component of the magnetic compass connecting compass bowl and the compass housing, and has the function of keeping the pointing system in the horizontal direction during the navigation of the ship. At present, the permanent flat ring of the magnetic compass is connected in a way that two grooves are processed in the 180-degree direction of the permanent flat ring, then a sliding bearing is placed in the grooves, and the grooves are connected with two cone shafts of a cone through a pressing plate and a screw fastening method. The processing process of the permanent flat ring comprises casting an aluminum blank and then machining.
The traditional mounting structure for the perpetual flat ring is old in processing mode, and the precision after assembly has superposition errors.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a permanent plain ring mounting structure of magnetic compass, this mounting structure is easy and simple to handle, the assembly precision is high.
The utility model discloses a realize through following technical scheme:
a magnetic compass permanent flat ring mounting structure comprises a permanent flat ring, a compass shaft and a first positioning nut;
two internal thread through holes are formed in the upper edge of the permanent flat ring along the diameter of the permanent flat ring and used for mounting the cone shaft;
the cone roller shaft comprises an external thread shaft section and an optical axis section, wherein the external thread shaft section is in threaded fit with an internal thread through hole in the perpetual flat ring, the optical axis section is rotatably mounted with the cone roller, the external thread shaft section is coaxial with the optical axis section, the diameter of the external thread shaft section is larger than that of the optical axis section, the external thread shaft section and the optical axis section are of an integrated structure, and a screwing part for applying screwing acting force is arranged on the outer end face of the external thread shaft section;
the first positioning nut is installed on the external thread shaft section of the rib basin shaft, and during installation, the first positioning nut is tightly propped against the inner wall of the permanent flat ring, so that the installation positions of the rib basin shaft and the permanent flat ring are fixed, and the rib basin shaft is prevented from moving.
In the above technical solution, the screwing portion of the outer end face of the cone shaft is a straight groove, a cross groove or an inner hexagonal structure.
In the technical scheme, the outer end of the optical shaft section of the compass bowl shaft is provided with a 45-degree chamfer, so that the compass bowl can be conveniently arranged in the corresponding shaft hole.
In the technical scheme, the permanent flat ring is further provided with two permanent flat ring shafts used for being connected with the compass shell, the two permanent flat ring shafts are arranged along the diameter of the permanent flat ring, and an included angle between the permanent flat ring shafts and the compass shaft is 90 degrees.
In the technical scheme, the perpetual flat ring shaft comprises a second external thread shaft section and a second optical axis section, the second external thread shaft section is used for being in threaded installation with the perpetual flat ring, and the second optical axis section is used for being in rotary connection with the compass housing; the second external thread shaft section and the second optical axis section are coaxial.
In the above technical scheme, a circle of positioning boss is arranged between the second external thread shaft section and the second optical axis section, and the second external thread shaft section, the positioning boss and the second optical axis section are of an integrated structure.
In the above-described aspect, the second optical axis segment outer end surface is provided with a screw portion for applying a screw force.
In the technical scheme, the second positioning nut is arranged on the second external thread shaft section of the permanent flat ring shaft, and the second positioning nut is tightly propped against the inner wall of the permanent flat ring, so that the permanent flat ring shaft is fixed.
The utility model discloses an advantage and beneficial effect do:
the utility model discloses a rib basin axle, set nut of special design are connected fixedly with directional system (promptly the rib basin), easy and simple to handle, assembly accuracy height.
Drawings
Fig. 1 is a top view of the mounting structure of the permanent flat ring of magnetic compass.
Fig. 2 is a sectional view taken along the line a in fig. 1.
Wherein:
1: permanent flat ring, 2: cone shaft, 3: first positioning nut, 4: permanent flat ring shaft, 5: and a second positioning nut.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical field person understand the solution of the present invention better, the technical solution of the present invention is further described below with reference to the specific embodiments.
Example one
Referring to the attached drawings, the magnetic compass permanent flat ring mounting structure comprises a permanent flat ring 1, a compass shaft 2 and a first positioning nut 3.
Two internal thread through holes are arranged on the permanent flat ring 1 along the diameter of the permanent flat ring and used for installing the cone shaft 2.
The cone roller shaft 2 comprises two sections, namely an external thread shaft section 2-1 used for being in threaded fit with an internal thread through hole in the perpetual flat ring and an optical axis section 2-2 used for being rotatably mounted with the cone roller, the external thread shaft section is coaxial with the optical axis section, the diameter of the external thread shaft section 2-1 is slightly larger than that of the optical axis section 2-2, the external thread shaft section and the optical axis section are of an integrated structure, and a screwing part 2-3 used for applying screwing acting force is arranged on the outer end face of the external thread shaft section; during installation, the optical axis section of the compass bowl shaft penetrates into the internal thread through hole on the perpetual flat ring inwards, then the external thread shaft section of the compass bowl shaft is continuously installed in the internal thread through hole, the external thread shaft section is completely installed in the internal thread through hole by screwing the screwing part (by using a screwdriver), and the optical axis section of the compass bowl shaft enters into the shaft hole corresponding to the compass bowl (the compass bowl is not drawn in the figure).
The first positioning nut 3 is arranged on the external thread shaft section 2-1 of the cone roller shaft, and during installation, the first positioning nut 3 is tightly propped against the inner wall of the permanent flat ring 1, so that the installation positions of the cone roller shaft and the permanent flat ring are fixed, and the cone roller shaft is prevented from moving.
Further, the screwing part 2-3 on the outer end face of the cone shaft can be a straight groove, a cross groove or an inner hexagonal structure.
Furthermore, the outer end of the optical axis section of the compass basin shaft is provided with a 45-degree chamfer, so that the compass basin shaft can be conveniently arranged in the corresponding shaft hole.
Example two
On the basis of the first embodiment, the permanent flat ring is further provided with two permanent flat ring shafts 4 used for being connected with the compass shell, the two permanent flat ring shafts are arranged along the diameter of the permanent flat ring, and an included angle between the permanent flat ring shafts 4 and the compass shaft 2 is 90 degrees.
The perpetual flat ring shaft 4 comprises a second external thread shaft section 4-1 and a second optical axis section 4-2, the second external thread shaft section is used for being in threaded installation with the perpetual flat ring, and the second optical axis section is used for being in rotary connection with the compass housing; the second external thread shaft section is coaxial with the second optical axis section, a circle of positioning boss 4-3 is arranged between the second external thread shaft section and the second optical axis section, and the second external thread shaft section, the positioning boss and the second optical axis section are of an integrated structure; the outer end face of the second optical axis section is provided with a screwing portion for applying screwing force. During installation, the second external thread shaft section of the permanent flat ring shaft is inwards installed into the permanent flat ring, then the second positioning nut 5 is installed on the second external thread shaft section 4-1, and the second positioning nut 5 is tightly propped against the inner wall of the permanent flat ring 1, so that the permanent flat ring shaft 4 is fixed.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The invention has been described above by way of example, and it should be noted that any simple variants, modifications or other equivalent substitutions by a person skilled in the art without spending creative effort may fall within the scope of protection of the present invention without departing from the core of the present invention.
Claims (8)
1. The utility model provides a permanent plain ring mounting structure of magnetic compass which characterized in that: comprises a permanent flat ring, a cone shaft and a first positioning nut;
two internal thread through holes are formed in the upper edge of the permanent flat ring along the diameter of the permanent flat ring and used for mounting the cone shaft;
the cone roller shaft comprises an external thread shaft section and an optical axis section, wherein the external thread shaft section is in threaded fit with an internal thread through hole in the perpetual flat ring, the optical axis section is rotatably mounted with the cone roller, the external thread shaft section is coaxial with the optical axis section, the diameter of the external thread shaft section is larger than that of the optical axis section, the external thread shaft section and the optical axis section are of an integrated structure, and a screwing part for applying screwing acting force is arranged on the outer end face of the external thread shaft section;
the first positioning nut is arranged on the external thread shaft section of the cone roller shaft, and during installation, the first positioning nut is tightly propped against the inner wall of the permanent flat ring, so that the installation positions of the cone roller shaft and the permanent flat ring are fixed.
2. The magnetic compass permanently flat ring mounting structure of claim 1, wherein: the screwing part on the outer end face of the cone shaft is a straight groove or a cross groove or an inner hexagonal structure.
3. The magnetic compass permanently flat ring mounting structure of claim 1, wherein: the outer end of the smooth shaft section of the cone shaft is provided with a 45-degree chamfer.
4. The magnetic compass permanently flat ring mounting structure of claim 1, wherein: the permanent flat ring is also provided with two permanent flat ring shafts which are used for being connected with the compass shell, the two permanent flat ring shafts are arranged along the diameter of the permanent flat ring, and the included angle between the permanent flat ring shafts and the compass pot shaft is 90 degrees.
5. The magnetic compass permanently flat ring mounting structure of claim 4, wherein: the perpetual flat ring shaft comprises a second external thread shaft section and a second optical shaft section, the second external thread shaft section is used for being in threaded installation with the perpetual flat ring, and the second optical shaft section is used for being in rotary connection with the compass housing; the second external thread shaft section and the second optical axis section are coaxial.
6. The magnetic compass permanently flat ring mounting structure of claim 5, wherein: a circle of positioning boss is arranged between the second external thread shaft section and the second optical axis section, and the second external thread shaft section, the positioning boss and the second optical axis section are of an integrated structure.
7. The magnetic compass permanently flat ring mounting structure of claim 5, wherein: the outer end face of the second optical axis section is provided with a screwing portion for applying screwing force.
8. The magnetic compass permanently flat ring mounting structure of claim 5, wherein: and a second positioning nut is arranged on a second external thread shaft section of the perpetual flat ring shaft, and the second positioning nut is tightly propped against the inner wall of the perpetual flat ring, so that the perpetual flat ring shaft is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921761004.6U CN210664502U (en) | 2019-10-18 | 2019-10-18 | Permanent flat ring mounting structure of magnetic compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921761004.6U CN210664502U (en) | 2019-10-18 | 2019-10-18 | Permanent flat ring mounting structure of magnetic compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210664502U true CN210664502U (en) | 2020-06-02 |
Family
ID=70818360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921761004.6U Active CN210664502U (en) | 2019-10-18 | 2019-10-18 | Permanent flat ring mounting structure of magnetic compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210664502U (en) |
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2019
- 2019-10-18 CN CN201921761004.6U patent/CN210664502U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230904 Address after: Unit 2001, No.1, Chengyi North Street, phase III, software park, Xiamen City, Fujian Province, 361000 Patentee after: XINNUO BEIDOU HANGKE INFORMATION TECHNOLOGY (XIAMEN) CO.,LTD. Address before: Unit E2, Floor 6, Building AB, Xinmao Science Park, Huayuan Industrial Zone, Nankai District, Tianjin, 300000 Patentee before: TIANJIN LINGJIN INDUSTRY & TRADE DEVELOPMENT Co.,Ltd. |