Rotary base with double limiting function

Abstract

The utility model discloses a revolving base with double limit function, relates to oil gas drilling equipment technical field, including outer ring, inner gear ring, inductance style stopper, physical style stopper, turning block and mounting plate, the inner gear ring is rotatablely provided in the outer ring, the inner side of inner gear ring is fixed with the mounting plate, and the mounting plate is fixed with the inductance style stopper, the physical style stopper, turning block and mounting plate. The two physical limiters are arranged on the mounting plate, the two inductance type limiters are arranged between the two physical limiters, the rotating block is arranged on the inner side wall of the inner gear ring, and the rotating block can abut against the physical limiters. And through the arrangement of the inductance type limiting device and the physical type limiting device, double limiting of the inner gear ring can be achieved, and the phenomenon that the service life of the rotary base is affected due to excessive angle rotation of the inner gear ring can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas drilling equipment, in particular to a rotary base with a double limiting function. Background Art

[0002] In the process of traditional drilling rig pipe string processing, the catway transports the pipe string to the drilling table, the grabbing equipment grabs the pipe string, hands it to the disconnecting equipment for disconnection, and then hands it to the second-level pipe laying machine for discharge. In this process, many related equipment and related operators are required. The manipulator of the existing drilling robot includes a main arm and a secondary arm, which are connected by a rotating base.

[0003] The rotary base in the prior art includes an inner gear ring and an outer ring. The inner gear ring is driven to rotate by a motor. An inductive limiter is provided on the inner side of the inner gear ring to limit the rotation angle of the inner gear ring.

[0004] However, the inner gear ring is generally connected to the external auxiliary arm, and the auxiliary arm itself is heavy. During the rotation process, due to inertia, the rotation angle of the inner gear ring is likely to exceed the angle limited by the inductive limiter, which will affect the service life of the rotary base for a long time. Utility Model Content

[0005] The purpose of the utility model is to provide a rotary base with a dual limiting function to solve the above technical problems.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] A rotary base with a dual limiting function comprises an outer ring, an inner gear ring, an inductive limiter, a physical limiter, a rotating block and a mounting plate, wherein the inner gear ring is rotatably arranged in the outer ring, the mounting plate is fixedly arranged on the inner side of the inner gear ring, two physical limiters are arranged on the mounting plate, two inductive limiters are arranged between the two physical limiters, a rotating block is arranged on the inner side wall of the inner gear ring, and the rotating block can be offset against the physical limiter.

[0008] Preferably, it further includes a first turntable, and the first turntable is provided on one side of the outer ring.

[0009] Preferably, the system further includes a second turntable connected to the inner gear ring.

[0010] Preferably, it further includes a servo motor and a reducer, the reducer is provided on one side of the first turntable, the servo motor is provided on one side of the reducer, the output end of the servo motor is connected to the reducer, the output end of the reducer is provided with a gear, and the gear is meshed with the inner ring gear.

[0011] As a further preference, the gear is eccentrically arranged on the inner side of the inner gear ring.

[0012] Preferably, the physical limiter includes a fixed block, which is connected to the mounting plate and is located on the rotation path of the rotating block.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] In the present invention, by providing an inductive limiter and a physical limiter, dual limiting of the inner gear ring can be achieved, which can effectively prevent the inner gear ring from rotating excessively and affecting the service life of the rotary base. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the rotary base with dual limiting functions in the utility model;

[0016] Figure 2 This is a side view of the rotary base with dual limiting functions in the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the rotary base with dual limit functions in the utility model;

[0018] Figure 4 yes Figure 2 Cross-sectional view along the AA axis.

[0019] In the figure: 1. Outer ring; 2. Inner ring gear; 3. Inductive limiter; 4. Physical limiter; 5. Rotating block; 6. Mounting plate; 7. First turntable; 8. Second turntable; 9. Servo motor; 10. Reducer; 11. Gear. DETAILED DESCRIPTION

[0020] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like are used to indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of this utility model and to simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] Figure 1 This is the main view of the rotary base with dual limiting functions in the utility model; Figure 2 This is a side view of the rotary base with dual limiting functions in the utility model; Figure 3 This is a schematic diagram of the internal structure of the rotary base with dual limit functions in the utility model; Figure 4 yes Figure 2 For the cross-sectional view in the AA direction, see Figures 1 to 4 As shown, a preferred embodiment is shown, which shows a rotary base with a dual limiting function, including an outer ring 1, an inner gear ring 2, an inductive limiter 3, a physical limiter 4, a rotating block 5 and a mounting plate 6. The inner gear ring 2 is rotatably arranged in the outer ring 1, and a mounting plate 6 is fixedly arranged on the inner side of the inner gear ring 2. Two physical limiters 4 are arranged on the mounting plate 6, and two inductive limiters 3 are arranged between the two physical limiters 4. A rotating block 5 is arranged on the inner side wall of the inner gear ring 2, and the rotating block 5 can offset the physical limiter 4. In this embodiment, see Figure 1 and Figure 4As shown, a first turntable 7 is provided on one side of the outer ring 1. The outer ring 1 and the first turntable 7 are fixed together by bolts. A second turntable 8 is provided on the side of the inner ring 2 away from the first turntable 7. The second turntable 8 is connected to the inner ring 2. Specifically, the second turntable 8 is fixed to the inner ring 2 by bolts and can rotate with the inner ring 2. During use, the first turntable 7 is connected and fixed to the main arm, and the second turntable 8 is connected and fixed to the auxiliary arm. When the inner ring 2 rotates, the auxiliary arm can also rotate. During the rotation of the inner ring 2, when the rotating block 5 approaches the inductive limiter 3, the external PLC controller automatically controls the servo motor 9 to stop. If the inner ring 2 cannot stop rotation in time due to the auxiliary arm, the rotating block 5 will directly press against the physical limiter 4, forcing the inner ring 2 to stop rotation. This can protect the servo motor 9 and avoid affecting the service life of the rotating base.

[0024] The inductive limiter 3 in this embodiment may also be an inductive sensor, which is mainly used to detect the position of the rotating block 5 .

[0025] In this embodiment, the two physical limiters 4 are symmetrically arranged, and the two inductive limiters 3 are symmetrically arranged. Figure 4 shown.

[0026] The mounting plate 6 can be connected to the first turntable 7 by bolts.

[0027] Furthermore, as a preferred embodiment, a servo motor 9 and a reducer 10 are further included. The reducer 10 is provided on one side of the first turntable 7, and the servo motor 9 is provided on one side of the reducer 10. The output end of the servo motor 9 is connected to the reducer 10, and the output end of the reducer 10 is provided with a gear 11, which meshes with the inner ring gear 2. The servo motor 9 can be connected to an external PLC controller to control the operation of the servo motor 9 through the PLC controller. The reducer 10 is an RV reducer that can control the stable rotation of the inner ring gear 2.

[0028] Furthermore, as a preferred embodiment, the gear 11 is eccentrically arranged on the inner side of the inner gear ring 2. Figure 1 As shown, the gear 11 is eccentrically arranged and is on the same straight line as the rotating block 5. The gear 11 and the rotating block 5 are located on both sides of the diameter direction of the inner ring gear 2, and combined with the setting of the physical limiter 4, the rotating block 5 can avoid contact between the gear 11.

[0029] Furthermore, as a preferred embodiment, the physical limiter 4 includes a fixed block connected to the mounting plate 6 and located in the rotation path of the rotating block 5. The fixed block is bolted to the outer edge of the mounting plate 6, while the rotating block 5 is bolted to the inner wall of the inner gear ring 2. When the rotating block 5 contacts the fixed block, the inner gear ring 2 is forced to stop rotating.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary base with dual limit function, characterized in that: It includes an outer ring, an inner gear ring, an inductive limiter, a physical limiter, a rotating block and a mounting plate. The inner gear ring is rotatably arranged in the outer ring. The mounting plate is fixedly arranged on the inner side of the inner gear ring. Two physical limiters are arranged on the mounting plate. Two inductive limiters are arranged between the two physical limiters. A rotating block is arranged on the inner side wall of the inner gear ring, and the rotating block can be offset against the physical limiter.

2. The rotary base with dual limiting function according to claim 1, characterized in that: It also includes a first turntable, which is provided on one side of the outer ring.

3. The rotary base with dual limiting function according to claim 1, characterized in that: It also includes a second turntable connected to the inner gear ring.

4. The rotary base with dual limiting function according to claim 2, characterized in that: It also includes a servo motor and a reducer. The reducer is provided on one side of the first turntable, and the servo motor is provided on one side of the reducer. The output end of the servo motor is connected to the reducer. The output end of the reducer is provided with a gear, and the gear is meshed with the inner ring gear.

5. The rotary base with dual limiting function according to claim 4, characterized in that: The gear is eccentrically arranged on the inner side of the inner gear ring.

6. The rotary base with dual limiting function according to claim 1, characterized in that: The physical limiter includes a fixed block connected to the mounting plate and located on a rotation path of the rotating block.

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