Device for adjusting coaxiality in narrow space

Abstract

The utility model relates to a device for adjusting coaxiality in a narrow space, and belongs to the technical field of couplings. According to the utility model, the coaxial adjusting bracket is additionally arranged outside the coupling between the encoder and the motor shaft, and the coaxial adjusting bracket comprises the two detachable and spliced rotary bodies, so that the coaxiality among the coupling, the encoder and the motor shaft can be adjusted and corrected by adjusting the gap between the two rotary bodies; the coaxiality adjusting device is small in occupied space, can adapt to coaxiality adjustment in a narrow gap, overcomes the defect that a dial indicator cannot be installed, can accurately control coaxiality deviation, is convenient and fast to disassemble after adjustment, is light in overall structure, can perform adjustment operation only through an adjusting bolt, and improves the work efficiency of coaxiality adjustment.

Description

Technical Field

[0001] This utility model relates to a device for adjusting coaxial couplings in confined spaces, belonging to the field of coupling technology. Background Technology

[0002] Couplings are frequently used in the connection of motors with other equipment. A coupling is a medium that connects two types of shaft components, ensuring synchronous rotation during power or motion transmission while also protecting the equipment. When the coaxiality error between the coupling and the two ends of the equipment exceeds the tolerance, the bearings inside the equipment will be subjected to additional forces, causing unnecessary mechanical vibration and making parts prone to fatigue failure, thus severely reducing the service life of the equipment.

[0003] Currently, dial indicators are commonly used to check coaxiality in actual installations. However, the use of dial indicators is limited by the choice of equipment installation site and reference surface, as well as the operator's skill level, all of which affect the measurement of coaxiality. This can lead to a certain coaxiality deviation when the coupling is connected to the equipment at both ends.

[0004] Furthermore, in certain confined working environments, such as between an encoder and a motor, there is simply no space to install a dial indicator, and repeated measurements and adjustments are not feasible due to time constraints. Therefore, there is currently a lack of equipment capable of measuring coaxiality in confined spaces. Utility Model Content

[0005] To solve the above problems, this utility model provides a device for adjusting coaxiality in confined spaces, comprising:

[0006] A coupling that connects the encoder and the motor shaft;

[0007] A coaxial adjustment bracket is fitted onto the outside of the coupling and connected between the encoder and the motor. The coaxial adjustment bracket includes two identical rotating bodies, each of which includes two parallel and oppositely arranged top plates. The two top plates are connected by at least two columns to form a rectangular frame structure. The two rotating bodies are spliced ​​together to form the coaxial adjustment bracket. The coaxiality of the coupling and the encoder and motor shafts is adjusted by changing the splicing gap between the two rotating bodies.

[0008] Furthermore, the top plate is a crescent-shaped plate, and the outer perimeter of the top plate is formed by a semi-circular edge and a straight edge that are closed and connected. A notch is left on the straight edge. Two adjacent top plates are joined together by the straight edges to form a circular plate structure. The notches of the two straight edges are closed to form a shaft opening.

[0009] Further, at least two mounting holes are formed on each of the column bodies, and adjusting bolts are arranged in the mounting holes, and the gap between the two rotary bodies can be adjusted by rotating the adjusting bolts.

[0010] Further, a semicircular hole with a gap and a screw hole are arranged on the side of the top plate close to the encoder, and the semicircular hole and the screw hole are used for clamping the rotating shaft of the encoder.

[0011] Further, a semicircular hole with a gap and a screw hole are arranged on the side of the top plate close to the motor, and the semicircular hole and the screw hole are used for clamping the transmission shaft of the motor.

[0012] Further, the shaft coupling comprises two staggered half shaft couplings, and the two half shaft couplings are connected by a plurality of groups of diaphragms and bolts, each group of diaphragms is stacked by a plurality of stainless steel plates, and the relative displacement on both sides of the shaft coupling is compensated by the elastic deformation of the diaphragms.

[0013] Further, the coaxial adjusting bracket is made of aluminum alloy.

[0014] Further, a protective cover is arranged on each of the rotary bodies and crosses the two column bodies, and the protective cover can cover the shaft coupling.

[0015] Further, an observation hole is formed on the protective cover.

[0016] The utility model discloses a coaxial adjusting bracket and shaft coupling are arranged between the encoder and the motor shaft, and the coaxial degree between the shaft coupling, the encoder and the motor shaft can be adjusted and corrected by adjusting the gap between the two rotary bodies.

[0017] The utility model discloses a coaxial adjusting bracket and shaft coupling are arranged between the encoder and the motor shaft, and the coaxial degree between the shaft coupling, the encoder and the motor shaft can be adjusted and corrected by adjusting the gap between the two rotary bodies. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the schematic view of coaxial adjusting bracket and shaft coupling of an embodiment of the utility model and is installed on the encoder and the motor shaft.

[0019] Figure 2 It is the structural schematic diagram of coaxial adjusting bracket of an embodiment of the utility model.

[0020] In the drawing: 1, encoder;2, coaxial adjusting bracket;3, shaft coupling;4, motor;21, top plate;22, column body. DETAILED DESCRIPTION

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1

[0025] This utility model provides a device for adjusting coaxial components in a confined space, comprising:

[0026] Coupling 3 connects the encoder and the motor shaft;

[0027] A coaxial adjustment bracket 2 is sleeved on the outside of the coupling 3 and connected between the encoder 1 and the motor 4. The coaxial adjustment bracket 2 includes two rotating bodies with identical structures. Each rotating body includes two parallel and oppositely arranged top plates 21. The two top plates 21 are connected by at least two columns 22 to form a rectangular frame structure. The two rotating bodies are spliced ​​together to form the coaxial adjustment bracket 2. The coaxiality of the coupling 3 and the encoder 1 and motor shafts is adjusted by changing the splicing gap between the two rotating bodies.

[0028] Furthermore, the top plate 21 is a crescent-shaped plate, and the outer periphery of the top plate 21 is formed by a semi-circular edge and a straight edge that are closed and connected. A notch is left on the straight edge. Two adjacent top plates 21 are spliced ​​together by butt joint of the straight edges to form a circular plate structure. The notches of the two straight edges are closed to form a shaft through-hole. Each column 22 can be provided with at least two mounting holes as needed. An adjusting bolt is provided in the mounting hole. The size of the fit clearance between the two rotating bodies can be adjusted by rotating the adjusting bolt.

[0029] In addition, the top plate 21 may also be provided with a semi-circular hole with a gap and a screw connection hole on the side near the encoder 1. The encoder shaft is held in place by fasteners engaging with the semi-circular hole and the screw connection hole. Conversely, the top plate 21 may also be provided with a semi-circular hole with a gap and a screw hole on the side near the motor. The encoder shaft is held in place by fasteners engaging with the semi-circular hole and the screw connection hole.

[0030] Furthermore, the coupling 3 includes two staggered half-couplings, which are connected by multiple sets of diaphragms and bolts. Each set of diaphragms is composed of several stacked stainless steel plates, and the relative displacement on both sides of the coupling is compensated by the elastic deformation of the diaphragms.

[0031] Preferably, the coaxial adjustment bracket 2 is made of aluminum alloy.

[0032] When it is necessary to adjust the coaxiality of encoder 1, coupling, and motor shaft, two rotating bodies can be spliced ​​on the outside of coupling to form a coaxial adjustment bracket 2 that is sleeved on the outside of coupling 3 and connected between encoder 1 and motor 4. Then, the adjusting bolt is rotated to adjust the fit clearance between the two rotating bodies. By changing the splicing clearance between the two rotating bodies, the coaxiality of coupling 3, encoder 1, and motor shaft can be adjusted.

[0033] Furthermore, to protect the coupling, each of the rotating bodies may be provided with a protective cover spanning the two columns 22, the protective cover being able to enclose the coupling. Additionally, the protective cover may also have an observation hole for easy observation.

[0034] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A device for adjusting a coaxial axis in a confined space, characterized in that, include: A coupling that connects the encoder and the motor shaft; A coaxial adjustment bracket is fitted onto the outside of the coupling and connected between the encoder and the motor. The coaxial adjustment bracket includes two identical rotating bodies, each of which includes two parallel and oppositely arranged top plates. The two top plates are connected by at least two columns to form a rectangular frame structure. The two rotating bodies are spliced ​​together to form the coaxial adjustment bracket. The coaxiality of the coupling and the encoder and motor shafts is adjusted by changing the splicing gap between the two rotating bodies.

2. The device for adjusting coaxiality in a confined space according to claim 1, characterized in that, The top plate is a crescent-shaped plate. The outer perimeter of the top plate is formed by a semi-circular edge and a straight edge that are closed and connected. There is a notch on the straight edge. Two adjacent top plates are spliced ​​together by connecting the straight edges to form a circular plate structure. The notches of the two straight edges are closed to form a shaft opening.

3. The device for adjusting coaxiality in a confined space according to claim 2, characterized in that, Each of the columns has at least two mounting holes, and an adjusting bolt is installed in the mounting hole. The fit clearance between the two rotating bodies can be adjusted by rotating the adjusting bolt.

4. The device for adjusting coaxiality in a confined space according to claim 3, characterized in that, The top plate has a semi-circular hole with a gap and a screw connection hole on the side near the encoder.

5. The device for adjusting coaxiality in a confined space according to claim 3, characterized in that, The top plate has a semi-circular hole with a gap and a screw hole on the side near the motor.

6. The device for adjusting coaxiality in a confined space according to claim 1, characterized in that, The coupling includes two staggered half-couplings, which are connected by multiple sets of diaphragms and bolts. Each set of diaphragms is composed of several stacked stainless steel plates, and the elastic deformation of the diaphragms is used to compensate for the relative displacement on both sides of the coupling.

7. The device for adjusting coaxiality in a confined space according to claim 1 or 5, characterized in that, The coaxial adjustment bracket is made of aluminum alloy.

8. The device for adjusting coaxiality in a confined space according to claim 1 or 5, characterized in that, Each of the rotating bodies is provided with a protective cover that spans the two columns, and the protective cover can cover the coupling.

9. The device for adjusting coaxiality in a confined space according to claim 8, characterized in that, The protective cover has an observation hole.

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