High-precision laser swinger easy to assemble and assembling method thereof

Abstract

The invention belongs to the technical field of laser swingers, and particularly relates to a high-precision laser swinger easy to assemble and an assembling method thereof. The instrument comprises a laser, a driving motor and a rotating head, wherein the driving motor is used for driving the rotating head to rotate; the rotating head is installed over the driving motor, and an output shaft of the driving motor directly acts on the rotating head. The laser emits laser upwards from the position under the driving motor and penetrates through the driving motor to reach the rotating head. The design that the motor serves as a driving part is creatively adopted, any undulation phenomenon cannot be generated in the working process, the working state is stable, the laser reflected finally can be presented as a static wire harness due to the high rotating speed of the laser, and the high-precision requirement in the construction design process is met; the whole structure is simplified, the number of parts is greatly reduced, disassembly, assembly and maintenance are more convenient, the parts are tightly matched, and the stability of the whole structure is high.

Description

Technical Field

[0001] The invention belongs to the technical field of laser levelers, and in particular relates to a high-precision easy-to-assemble laser leveler and an assembling method thereof. Background Art

[0002] Most of the existing laser levelers on the market use belt drive or gear drive to drive the rotating head to rotate, so as to perform tasks such as finding the horizontal height during the construction of large squares and farmlands.

[0003] For example, the invention patent application "Laser Sweeper" with publication number CN116007593A and the invention patent "Laser Rotary Sweeper System" with publication number CN114370858B both use the traditional gear method. As can be seen from the drawings of these two public documents, a big problem with such a laser sweeper structure is that the overall structural design is very complicated, especially the laser and rotating head near the top, which leads to high production and maintenance costs.

[0004] In addition, such a structure is also complicated to assemble, and after a long period of use, the belts and gears are very prone to wear, resulting in frequent maintenance and replacement of parts. During use, the belt and gear transmission structure cannot maintain the stability of the rotating head, and will produce ups and downs during rotation, causing the emitted wire harness to be unable to remain stationary, and to a certain extent, it is actually unable to meet the needs of modern and intelligent construction design. Summary of the invention

[0005] In view of the above problems existing in the prior art, the object of the present invention is to provide a high-precision, easy-to-assemble laser leveling instrument and an assembly method thereof which have simple overall structural design, convenient assembly, high stability in use and high precision.

[0006] In order to solve the above problems, the technical solution adopted by the present invention is as follows: A high-precision easy-to-assemble laser leveler, comprising a laser, a driving motor and a rotating head, wherein the driving motor is used to drive the rotating head to rotate; The rotating head is installed directly above the driving motor, and the output shaft of the driving motor directly acts on the rotating head; The laser emits laser light upward from just below the drive motor and passes through the drive motor to reach the rotation head.

[0007] Furthermore, the positions of the laser, the drive motor and the rotating head in the horizontal plane can be adjusted synchronously.

[0008] Furthermore, the laser, the driving motor and the rotating head are synchronously adjusted in position in a horizontal plane through a driving member; The laser leveling instrument further comprises a base, wherein the laser is arranged inside the base and is interference-fitted with an inner wall of the base; A spherical bearing is sleeved on the outside of the base, the spherical bearing is located in the middle of the base and the spherical bearing is partially supported on the base; A die casting is sleeved on the outer side of the spherical bearing, the spherical bearing is also partially supported on the die casting and the spherical bearing is fixed in the die casting in an interference fit manner, and the driving member is fixedly connected to the die casting; A special-shaped piece is also sleeved on the outside of the base, and the special-shaped piece presses the joint bearing downward from the top of the joint bearing, and the special-shaped piece is also transmission-connected with the driving member; A pressing piece is also sleeved on the outside of the base, and the pressing piece presses the special-shaped piece downward from the top of the special-shaped piece, and the driving motor is arranged above the pressing piece.

[0009] Furthermore, the laser forms an interference fit with the inner wall of the base by means of a threaded connection; The outer wall of the laser is provided with a protruding portion protruding outward, and the inner wall of the base is provided with a groove matching the protruding portion.

[0010] Furthermore, the protrusion and the groove are both annular and surround the outer wall of the laser.

[0011] Furthermore, the rotating head, the driving motor and the pressing piece are arranged in close contact with each other.

[0012] An assembly method of the high-precision easy-to-assemble laser leveling device comprises the following steps: (1) First, press the spherical bearing onto the die casting; (2) Pass the base through the spherical bearing from bottom to top; (3) Pressing the special-shaped part onto the spherical bearing from top to bottom; (4) Fixedly connecting the drive motor to the pressing piece; (5) Pressing the pressing piece onto the special-shaped piece from top to bottom; (6) Install the rotating head onto the driving motor.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention innovatively adopts a motor as a driving part, which does not produce any ups and downs during operation, has a stable working state, and its own high speed can make the final reflected laser appear as a static beam, meeting the high-precision requirements of construction design; (2) The present invention simplifies the overall structure and greatly reduces the number of parts, making disassembly, assembly and maintenance more convenient. The parts fit closely together and the overall structure is highly stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the swinging device of the present invention; Figure 2 Schematic diagram of the internal structure of the swinging instrument of the present invention; In the figure: 1-instrument platform; 2-base; 21-groove; 3-laser; 31-protrusion; 4-spherical bearing; 5-die casting; 6-special-shaped part; 7-pressing part; 8-driving motor; 9-rotating head; 10-driving part. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with specific embodiments.

[0016] like Figure 1-2 As shown, the high-precision easy-to-assemble laser leveling instrument described in the present invention includes an instrument platform 1 as a base, a base 2 is provided on the instrument platform 1, a cylindrical cavity penetrating from top to bottom is opened inside the base 2, and a laser 3 is arranged in the cavity.

[0017] It should be noted that the laser 3 is installed in the cavity in an interference fit with the inner wall of the base 2. In this embodiment, a threaded connection is specifically adopted. It can be seen that the laser 3 is provided with an external thread near the top, and a corresponding internal thread is provided on the inner wall of the base 2, thereby forming a threaded connection between the two. In addition, a protrusion 31 is provided on the outer wall of the laser 3, and a corresponding matching groove 21 is also provided on the inner wall of the base 2, so that when the two are tightly matched by a threaded connection, as the protrusion 31 is stuck in the groove 21, it means that it is installed in place, and the two form an interference tight fit. The protrusion 31 and the groove 21 are both arranged in a ring form around the outer wall of the laser 3, which can further improve the stability of the tight connection.

[0018] As can be seen from the figure, an annular plane is provided on the outer surface of the base 2, and a spherical bearing 4 is installed on this plane. The bottom surface of the spherical bearing 4 is supported on this annular plane, and it is sleeved in the middle of the base 2.

[0019] A die-casting 5 is sleeved on the outer side of the spherical bearing 4 , and the bottom surface of the spherical bearing 4 is also partially supported on an annular plane formed on the die-casting 5 , thereby ensuring the stability of the spherical bearing 4 .

[0020] Then upward, a special-shaped part 6 is sleeved on the outside of the base 2, and the special-shaped part 6 presses the joint bearing 4 downward from the top of the joint bearing 4. Also, on the outside of the base 2, on the top of the special-shaped part 6, a pressing piece 7 is provided, and the pressing piece 7 presses the special-shaped part 6 downward from the top of the special-shaped part 6, and on the top of the pressing piece 7, a driving motor 8 is provided, and on the top of the driving motor 8, a rotating head 9 is provided. Here, the output shaft of the driving motor 8 directly acts on the rotating head 9, and the rotating head 9, the driving motor 8, and the pressing piece 7 are tightly fitted.

[0021] In the above structural design, the laser 3 emits laser light directly upward, and corresponding holes are opened on the pressing piece 7 and the driving motor 8, so that the laser light can pass through the pressing piece 7 and the driving motor 8 and finally reach the rotating head 9 in a straight line.

[0022] The most obvious effect that can be achieved through the above-mentioned technical solution is the driving method, which abandons the traditional belt or gear transmission method and adopts the direct motor drive method in a pioneering way. It should be noted that although the motor is already a very mature technology, its application in the field of sweepers has never been seen before. It is easier to think of replacing the belt drive or gear drive with a motor, which may be obvious to those skilled in the art, but the technical difficulties overcome by this solution lie in the overall structural design, that is, the overall structural design serves the use of motor drive, or in other words, serves the ultimate purpose of this solution.

[0023] Among them, the most notable is the use of a structure such as a joint bearing 4. From the two prior arts mentioned in the background technology part, the current sweepers on the market have complex structures and numerous installation parts. Therefore, when considering replacing the drive mechanism with a motor, it is necessary to consider the impact of its own drive mode on the overall structure. At the same time, in order to meet the need to simplify the complexity of the overall structure, the present application uses a joint bearing 4 as the intermediate component, which simplifies the overall structural design as much as possible and ensures the stability problem brought by the drive mode of the motor.

[0024] So where are the advantages of using motor drive? First, the belt or gear transmission structures commonly used in the market are contact transmission structures, which will inevitably cause ups and downs when two objects come into contact. The distance of use of the leveling instrument is usually hundreds of meters, so the error caused by contact will increase due to the long distance of use. Therefore, under the same circumstances, when the cumulative error continues to increase, the solution of using a motor is more stable.

[0025] Second, due to the limitations of the belt and gear transmission structure, the rotation speed of the leveling instruments on the market is basically around 600~800 rpm. When the leveling instrument needs to be used at close range, the speed of 600 rpm will cause the laser line to flicker, which often causes visual fatigue and discomfort to the staff when observing with the naked eye, and is prone to misjudgment. The drive motor solution can achieve a high rotation speed, so that the laser line appears static, making it easier for staff to judge the position when using it at close range, and not easy to cause visual fatigue.

[0026] It should also be noted that the assembly method of this instrument includes the following steps: (1) Press the spherical plain bearing onto the die casting first; (2) Pass the base through the spherical bearing from bottom to top; (3) Press the special-shaped part onto the spherical bearing from top to bottom; (4) Fixedly connecting the drive motor to the pressing piece; (5) Pressing the pressing piece onto the special-shaped piece from top to bottom; (6) Install the rotating head onto the drive motor.

[0027] Such assembly steps are designed in accordance with the requirements of the structural design mentioned above. The main purpose is to maintain the tight fit between the laser 3 and the base 2, the tight fit between the joint bearing 4 and the die casting 5, and the tight fit between the special-shaped part 6, and the tight fit between the pressing piece 7 and the special-shaped part 6. Only by ensuring such tight fit can the overall structure be stabilized and the high-precision requirements of the construction design be met.

[0028] In this embodiment, the rotating head 9, the driving motor 8 and the laser 3 are synchronously adjusted in the horizontal plane through the driving member 10, which can facilitate the staff to quickly adjust the irradiation position and improve the practical performance. In terms of structure, the driving member 10 is connected to the special-shaped member 6 by transmission, and moves in the X and Y axis directions through two screw rods and a motor. A position sensor is also provided on the instrument platform 1, and the real-time position of the rotating head 9 can be obtained through the sensor, so as to facilitate the staff to make adjustments.

Claims

1. A high-precision, easy-to-assemble laser leveler, comprising a laser, characterized in that: It also includes a driving motor and a rotating head, wherein the driving motor is used to drive the rotating head to rotate; The rotating head is installed directly above the driving motor, and the output shaft of the driving motor directly acts on the rotating head; The laser emits laser light upward from just below the drive motor and passes through the drive motor to reach the rotation head.

2. The high-precision easy-to-assemble laser leveling instrument according to claim 1, characterized in that: The positions of the laser, the driving motor and the rotating head in the horizontal plane can be adjusted synchronously.

3. The high-precision easy-to-assemble laser leveling instrument according to claim 2, characterized in that: The laser, the driving motor and the rotating head are synchronously adjusted in position in a horizontal plane through a driving member; The laser leveling instrument further comprises a base, wherein the laser is arranged inside the base and is interference-fitted with an inner wall of the base; A spherical bearing is sleeved on the outside of the base, the spherical bearing is located in the middle of the base and the spherical bearing is partially supported on the base; A die casting is sleeved on the outer side of the spherical bearing, the spherical bearing is also partially supported on the die casting and the spherical bearing is fixed in the die casting in an interference fit manner; A special-shaped piece is also sleeved on the outside of the base, and the special-shaped piece presses the joint bearing downward from the top of the joint bearing, and the special-shaped piece is also transmission-connected with the driving member; A pressing piece is also sleeved on the outside of the base, and the pressing piece presses the special-shaped piece downward from the top of the special-shaped piece, and the driving motor is arranged above the pressing piece.

4. The high-precision easy-to-assemble laser leveling instrument according to claim 3, characterized in that: The laser forms an interference fit with the inner wall of the base by means of threaded connection; The outer wall of the laser is provided with a protruding portion protruding outward, and the inner wall of the base is provided with a groove matching the protruding portion.

5. The high-precision easy-to-assemble laser leveling instrument according to claim 4, characterized in that: The protrusion and the groove are both annular and surround the outer wall of the laser.

6. The high-precision easy-to-assemble laser leveling instrument according to claim 3, characterized in that: The rotating head, the driving motor and the pressing piece are arranged in close contact with each other.

7. An assembly method of the high-precision easy-to-assemble laser leveling instrument according to claim 6, characterized in that: The following steps are involved: (1) First, press the spherical bearing onto the die casting; (2) Pass the base through the spherical bearing from bottom to top; (3) Pressing the special-shaped part onto the spherical bearing from top to bottom; (4) Fixedly connecting the drive motor to the pressing piece; (5) Pressing the pressing piece onto the special-shaped piece from top to bottom; (6) Install the rotating head onto the driving motor.

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