CN218266835U - Surveying instrument is with rotating main shaft - Google Patents
Surveying instrument is with rotating main shaft Download PDFInfo
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- CN218266835U CN218266835U CN202222138253.8U CN202222138253U CN218266835U CN 218266835 U CN218266835 U CN 218266835U CN 202222138253 U CN202222138253 U CN 202222138253U CN 218266835 U CN218266835 U CN 218266835U
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- main part
- pivot
- pearl
- surveying instrument
- axle sleeve
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Abstract
The utility model provides a surveying instrument is with rotating main shaft belongs to surveying instrument technical field. The utility model discloses a pivot, axle sleeve and dense pearl cage, pivot include connecting portion, and downwardly extending has the pivot main part in the middle of the connecting portion, and the pivot main part rotates the cover to be established in the inside centre of axle sleeve, and dense pearl cage includes pearl cage main part, and pearl cage main part cover is established between pivot main part and axle sleeve, and pearl cage main part both ends are provided with a plurality of ball along the even roll of circumference, and the ball runs through pearl cage main part and is connected with pivot main part and axle sleeve contact, the utility model discloses effectively improved surveying instrument's regulation precision, improved surveying instrument's measurement accuracy, and installed simple structure, low in manufacturing cost.
Description
Technical Field
The utility model relates to a surveying instrument is with rotating main shaft belongs to surveying instrument technical field.
Background
The engineering measuring instrument is a measuring instrument for various aspects of orientation, distance measurement, angle measurement, height measurement, mapping, photogrammetry and the like required by measurement in planning design, construction and operation management stages of engineering construction.
Laser measuring instruments are various measuring instruments equipped with a laser transmitter. The common point of many instruments is that a helium-neon laser is connected with a telescope, and a laser beam is guided into a telescope tube and is superposed with a collimation axis. By utilizing the advantages of good directivity, small emission angle, high brightness, red visibility and the like of the laser beam, a clear quasi-straight line is formed and is used as the basis of directional positioning. The method is widely applied to engineering measurement such as large-scale building construction, ditch and tunnel excavation, large-scale machine installation, deformation observation and the like.
Common laser measurement instruments are: (1) laser collimators and laser pointers. The two structures are similar, and the device is used for ditch, tunnel or pipeline construction, large-scale mechanical installation and building deformation observation. The laser collimation precision reaches 10 < -5 > to 10 < -6 >. (2) Laser plumb line appearance. An instrument that vertically collimates a laser beam by placing the beam in a vertical direction. The device is used for vertical positioning and subsequent inclination observation in the construction process of high-rise buildings, chimneys, elevators and the like, and the precision can reach 0.5 multiplied by 10 < -4 >. (3) Laser theodolite. The device is used for routing, positioning and measuring and setting known angles in construction and equipment installation. Typically with a deviation of less than 1 cm within 200 meters. (4) Laser level. Besides the function of a common level, the device can also be used for collimation and guidance. If the automatic tracking photoelectric receiving target is arranged on the leveling rod, laser leveling measurement can be carried out. (5) Laser planimeter.
Generally all have adjusting device among the surveying instrument, adjusting device includes angle modulation, horizontal position control and altitude mixture control etc. and wherein angle modulation mainly adopts the pivot to connect, and rotating shaft and axle sleeve clearance fit in current surveying instrument have certain deflection owing to the existence in clearance when the main shaft rotates, and surveying instrument is high-precision instrument, and a bit deflects and will lead to the measured data deviation.
SUMMERY OF THE UTILITY MODEL
In view of the above prior art's shortcoming, the utility model aims to provide a surveying instrument is with rotating main shaft for rotating shaft and axle sleeve clearance fit in the surveying instrument that solves among the prior art, because the existence in clearance has certain deflection when the main shaft rotates, and surveying instrument is high-precision instrument, and the problem that will lead to the measured data deviation of deflecting a bit.
In order to realize above-mentioned purpose and other relevant mesh, the utility model provides a surveying instrument is with rotating main shaft, including pivot, axle sleeve and pearl ball cage, the pivot includes connecting portion, and downwardly extending has the pivot main part in the middle of the connecting portion, and the pivot main part rotates the cover to be established in the middle of the axle sleeve is inside, pearl ball cage includes pearl cage main part, and pearl cage main part cover is established between pivot main part and axle sleeve, and pearl cage main part both ends are provided with a plurality of ball along the even roll of circumference, and the ball runs through pearl cage main part and is connected with pivot main part and axle sleeve contact.
In an embodiment of the present invention, the end of the rotating shaft main body is provided with a locking portion, and the locking portion is detachably connected to a locking ring.
By adopting the technical scheme: the locking portion is connected to the locking circle, and the shaft sleeve is spacing to the locking circle, with shaft sleeve and pivot zonulae occludens.
In an embodiment of the present invention, two rows of balls are respectively disposed at two ends of the ball cage main body.
In an embodiment of the present invention, the ball is in interference fit with the gap between the rotating shaft main body and the shaft sleeve.
By adopting the technical scheme: the ball and the clearance interference fit between pivot main part and the axle sleeve, the pivot main part ball plays the supporting role to the pivot main part when rotating, when reducing frictional force between pivot main part and the axle sleeve, the ball supports the pivot main part, prevents that the pivot main part from rotating the deflection in the process of rotating.
In an embodiment of the present invention, the dense bead flat pad is disposed between the connecting portion and the upper end surface of the shaft sleeve, and the dense bead flat pad includes a flat pad main body, and a plurality of balls are disposed on the middle surface of the flat pad main body along the circumferential uniform interval.
By adopting the technical scheme: the dense bead flat pad between the connecting part and the upper end face of the shaft sleeve also plays a role in supporting and reducing friction between the connecting part and the shaft sleeve.
As above, the utility model discloses a surveying instrument is with rotating main shaft has following beneficial effect:
the utility model discloses in set up the flat pad of dense pearl rotating cage and dense pearl between pivot and axle sleeve, be provided with the ball on dense pearl rotating cage and the flat pad of dense pearl, through the clearance interference fit between ball and pivot and the axle sleeve, when reducing frictional force between pivot and the axle sleeve, the ball plays the supporting role to the pivot, prevent that the pivot from rotating deflection in the process of rotating, avoided the pivot to rotate the in-process when improving the pivot and rotate the compliance and deflect, thereby effectively improved surveying instrument's regulation precision, surveying instrument's measurement accuracy has been improved, and install simple structure, low in manufacturing cost.
Drawings
Fig. 1 is a schematic front view of a rotating spindle for a surveying instrument according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating an internal structure of a rotating spindle for a surveying and mapping instrument according to an embodiment of the present invention.
Fig. 3 is a schematic view of a main shaft of a rotating spindle for a surveying instrument according to an embodiment of the present invention.
Fig. 4 is a schematic view illustrating an internal structure of a rotating shaft of a rotating spindle for a surveying and mapping instrument according to an embodiment of the present invention.
Wherein, 1, a rotating shaft; 2. a shaft sleeve; 3. a bead cage; 4. a locking ring; 5. a connecting portion; 6. dense bead flat mats; 7. a bead cage body; 8. a rotating shaft main body; 9. a ball bearing; 10. a locking portion.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1-2. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Please refer to fig. 1 to 4, the utility model provides a surveying instrument is with rotating main shaft, including pivot 1, axle sleeve 2 and dense pearl cage 3, pivot 1 includes connecting portion 5, downwardly extending has pivot main part 8 in the middle of the connecting portion 5, pivot main part 8 rotates the cover and establishes in the middle of axle sleeve 2 is inside, dense pearl cage 3 includes pearl cage main part 7, the cover of pearl cage main part 7 is established between pivot main part 8 and axle sleeve 2, 7 both ends of pearl cage main part are provided with a plurality of ball 9 along the even roll of circumference, 7 both ends of pearl cage main part respectively set up two rows of ball 9, ball 9 runs through pearl cage main part 7 and is connected with pivot main part 8 and axle sleeve 2 contact, ball 9 and pivot main part 8 and the clearance interference fit between axle sleeve 2, 8 end of pivot main part sets up locking portion 10, can dismantle on the locking ring 4 is connected with on the locking portion 10, set up dense pearl plain cushion 6 between connecting portion 5 and the axle sleeve 2 up the up end, dense pearl plain cushion 6 includes the plain cushion main part, plain cushion main part middle surface is provided with a plurality of ball 9 along the even interval of circumference.
The working principle of the rotating main shaft for the surveying and mapping instrument is as follows: connecting portion 5 of pivot 1 is connected with surveying instrument, axle sleeve 2 and surveying instrument pedestal connection, when adjusting surveying instrument's angle, pivot main part 8 rotates at axle sleeve 2 is inside, ball cage main part 7 sets up between 8 surplus axle sleeves of pivot main part 2, because ball 9 and ball cage main part 7 roll connection at ball cage main part 7 both ends, and the clearance interference fit between ball 9 and pivot main part 8 and the axle sleeve 2, pivot main part 8 ball 9 plays supporting role to pivot main part 8 when rotating, when reducing frictional force between pivot main part 8 and the axle sleeve 2, ball 9 supports pivot main part 8, prevent that pivot main part 8 from rotating the well deflection, thereby improve pivot main part 8's rotation precision, the flat pad 6 of dense pearl between the terminal surface of connection portion 5 and axle sleeve 2 also plays the effect of supporting and reducing friction between connection portion 5 and the axle sleeve 2, thereby avoided pivot 1 to rotate the in-process when improving pivot 1 and rotating the compliance, thereby effectively improved surveying instrument's adjustment precision, surveying instrument's measurement precision has been improved.
To sum up, the utility model discloses in set up close pearl rotating cage and the flat pad of close pearl between pivot and axle sleeve, be provided with the ball on close pearl rotating cage and the flat pad of close pearl, through the clearance interference fit between ball and pivot and the axle sleeve, when reducing frictional force between pivot and the axle sleeve, the ball plays the supporting role to the pivot, prevent that the pivot from rotating the deflection in the process of rotating, avoided the pivot to rotate the in-process when improving pivot rotation compliance and deflected, thereby effectively improved surveying instrument's regulation precision, surveying instrument's measurement accuracy has been improved, and device simple structure, low in manufacturing cost. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. The utility model provides a surveying instrument is with rotating main shaft, its characterized in that, includes pivot (1), axle sleeve (2) and pearl ball cage (3), pivot (1) is including connecting portion (5), and downwardly extending has pivot main part (8) in the middle of connecting portion (5), and pivot main part (8) are rotated the cover and are established in axle sleeve (2) inside centre, pearl ball cage (3) are established between pivot main part (8) and axle sleeve (2) including pearl cage main part (7), pearl cage main part (7) cover, and pearl cage main part (7) both ends are provided with a plurality of ball (9) along the even roll of circumference, and ball (9) run through pearl cage main part (7) and are connected with pivot main part (8) and axle sleeve (2) contact.
2. A rotating spindle for a surveying instrument according to claim 1, characterized in that: the end of the rotating shaft main body (8) is provided with a locking part (10), and the locking part (10) is detachably connected with a locking ring (4).
3. A rotating spindle for a surveying instrument according to claim 1, characterized in that: two rows of balls (9) are respectively arranged at two ends of the ball cage main body (7).
4. A rotating spindle for a surveying instrument according to claim 1, characterized in that: and the ball (9) is in interference fit with a gap between the rotating shaft main body (8) and the shaft sleeve (2).
5. A rotating spindle for a surveying instrument according to claim 1, characterized in that: set up between connecting portion (5) and axle sleeve (2) the up end dense pearl flat bed (6), dense pearl flat bed (6) are including flat pad main part, and the even interval in circumference is provided with a plurality of ball (9) on the flat pad main part middle surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222138253.8U CN218266835U (en) | 2022-08-15 | 2022-08-15 | Surveying instrument is with rotating main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222138253.8U CN218266835U (en) | 2022-08-15 | 2022-08-15 | Surveying instrument is with rotating main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218266835U true CN218266835U (en) | 2023-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222138253.8U Active CN218266835U (en) | 2022-08-15 | 2022-08-15 | Surveying instrument is with rotating main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218266835U (en) |
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2022
- 2022-08-15 CN CN202222138253.8U patent/CN218266835U/en active Active
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