Device for preventing coupling barring shaft from shifting

Abstract

The invention relates to the technical field of mechanical equipment, in particular to a device for preventing shaft coupling barring shaft shifting, which comprises a base and a load shaft, a driving device is mounted on the base, the driving device is provided with a rotating shaft, and a shaft coupling is mounted on the rotating shaft and the load shaft; the driving device drives the coupler through the rotating shaft, and the coupler drives the load shaft to conduct barring. A limiting rod capable of moving up and down and positioning is arranged in the middle of the groove-shaped frame, and clamping rods capable of moving left and right and positioning are respectively arranged on two side frames of the groove-shaped frame. The lower end of the limiting rod is located between the two coupling pieces to prevent the two coupling pieces from being attached too tightly. The clamping rods are close to the outer side walls of the two pieces of the coupler respectively to prevent the coupler from moving. When the bearing bush is ground, a main shaft of a rotating unit and the bearing bush can be ensured to perform circumferential operation on a fixed contact surface, and the contact surface condition of the shaft and the bearing bush is accurately reflected; when a rotating unit is aligned, the problems that the data error is large and the center alignment accuracy is affected due to the fact that axial movement is too large are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical equipment, in particular to a device for preventing axle movement of a coupling plate. Background Art

[0002] When inspecting the generator set, it is necessary to grind the bearings of the rotating equipment and align the center of the rotating equipment. The rotating equipment is usually a motor or a water pump. The concentricity of the rotating equipment after operation is ensured by aligning the center of the rotating equipment. This process requires turning the main shaft of the rotating unit. Under the bearing support method, the main shaft of the rotating unit has axial movement during the turning process. Excessive shaft movement will lead to inaccurate reflection of the contact surface between the shaft and the bearing, and cannot accurately reflect the contact situation between the shaft and the bearing during the actual operation process. It will cause large errors in the end face and circumferential center data, which will affect the subsequent bearing scraping work; the center alignment error of the rotating unit main shaft is large, which affects the accuracy of center alignment.

[0003] The existing turning device can only make the two shaft couplings rotate at the same time. In order to prevent the coupling shaft from moving during turning, the workpiece is fixed to the coupling by installing a dial indicator bracket on the workpiece, which cannot eliminate the axial movement during the turning process. At present, there is no device for limiting the axial displacement of the two shafts during turning. Summary of the invention

[0004] The purpose of the present invention is to provide a device for preventing coupling shaft movement during turning for aligning the grinding center of a rotating unit bearing. By axially fixing the rotating unit coupling, the problem of excessive axial movement during turning is eliminated.

[0005] The technical solution of the present invention is as follows: A device for preventing axle movement during coupling turning comprises a base and a load shaft. A driving device is installed on the base, the driving device is provided with a rotating shaft, and couplings are installed on the rotating shaft and the load shaft; the driving device drives the coupling via the rotating shaft, and the coupling drives the load shaft to turn; a fixed bracket is also installed on the base, a groove frame is fixedly connected to the upper end of the fixed bracket, a limit rod which can be moved up and down and positioned is provided in the middle of the groove frame, and clamping rods which can be moved left and right and positioned are respectively installed on the two side frames of the groove frame.

[0006] The device for preventing the coupling disc from slipping, the limit rod is slidably installed in the slide groove in the middle of the groove frame to achieve up and down movement, and the limit rod is positioned by a bolt screwed on the side wall of the groove frame, passing through the slide groove, rotating and pressing on the limit rod.

[0007] The device for preventing the coupling disc from moving the axle, the clamping rod is slidably installed in the sliding groove of the grooved frame side frame to realize left and right movement, and the clamping rod is positioned by a bolt screwed on the grooved frame side frame, passing through the sliding groove, rotating and pressing on the clamping rod.

[0008] The device for preventing the coupling disc from moving the axle is provided with a thread on the clamping rod, which is screwed into the screw hole on the side frame of the grooved frame to realize left and right movement. A nut is screwed on the clamping rod, and the positioning of the clamping rod is realized by screwing the nut.

[0009] The device for preventing the coupling from shifting, the driving device is slidably mounted on the base, the load shaft and the driving shaft are located on the same axis, and the couplings on the load shaft and the driving shaft are conveniently matched.

[0010] The device for preventing the coupling disc from moving the axle, the fixed bracket is slidably installed on the base to achieve left and right sliding, and the height of the fixed bracket is adjustable.

[0011] The device for preventing the coupling disc from moving the axle, the fixed bracket is slidably installed on the base along the X-Y axis, and the Z-axis height of the fixed bracket is adjustable.

[0012] The coupling of the present invention is composed of two pieces, which are respectively mounted on the rotating shaft and the load shaft. When working, the left and right and front and back positions of the fixed bracket are adjusted so that the groove frame is engaged with the outer side of the coupling, and the position of the limit rod is adjusted so that the lower end of the limit rod is located between the two pieces of the coupling to prevent the two pieces of the coupling from being too tightly fitted; the positions of the clamping rods of the two side frames of the groove frame are adjusted so that the clamping rods are respectively close to the outer side walls of the two pieces of the coupling to limit the coupling and prevent the coupling from moving.

[0013] When grinding the bearing, it can ensure that the main shaft of the rotating unit and the bearing make circular motion on the fixed contact surface, accurately reflecting the contact surface conditions between the shaft and the bearing; on the other hand, when aligning the rotating unit, it can avoid large data errors caused by excessive axial movement, which affects the accuracy of center alignment.

[0014] The present invention is suitable for a main shaft without axial limit during the turning process of a rotating unit. During the turning process, the main shaft can be axially limited to prevent adverse effects caused by axial movement. By adjusting the clamping rod and the limit rod, it is suitable for couplings of different specifications and sizes, and has a wider applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structural principle of the present invention.

[0016] Figure 2 It is a schematic diagram of the trough frame structure of the present invention.

[0017] Numbers in the figure: 1, rotating shaft; 2, slotted frame; 3, clamping rod; 4, screw hole frame; 5-limiting rod; 6, nut; 7, fixed bracket; 8, slider; 9, dovetail plate; 10, load shaft; 11, coupling plate one, 12, coupling plate two. DETAILED DESCRIPTION

[0018] A device for preventing axle movement during a coupling turning includes a base, a load shaft 10, a driving device installed on the base, the driving device is provided with a rotating shaft 1, a coupling is installed on the rotating shaft 1 and the load shaft 10, and the coupling is composed of a coupling plate 1 11 and a coupling plate 2 12 as a pair; the driving device drives the coupling through the rotating shaft 1, and the coupling plate 1 11 and the coupling plate 2 12 cooperate to drive the load shaft 10 to turn the shaft; a fixed bracket 7 is also installed on the base, and the fixed bracket 7 adopts a lifting structure, and the height is adjustable according to the size of the coupling, and the fixed bracket 7 The upper end is fixedly connected with a groove frame 2, and the groove frame 2 is fixedly installed with a screw hole frame 4. The limiting rod 5 is provided with a thread, which is screwed on the screw hole frame 4, and passes through the groove frame 2 downward to extend between the edges of the coupling piece 1 11 and the coupling piece 2 12 to limit the position. The two side frames of the groove frame 2 are respectively screwed with clamping rods 3, and the clamping rods 3 also have threads. The limiting rod 5 and the clamping rod 3 are rotated and tightened through the nut 6 to fix the position. The clamping rods 3 on the two side frames of the groove frame 2 are respectively close to the outer side walls of the coupling piece 1 11 and the coupling piece 2 12 to achieve the limit position. Prevent the coupling from jumping.

[0019] For ease of use, the fixed bracket 7 of the present invention can be designed as an XYZ three-dimensional moving structure. The fixed bracket 7 is fixedly mounted on the slider 8. The slider 8 is mounted on the dovetail plate 9 through a screw mechanism. The dovetail plate 9 and the base are slidably matched through the dovetail and the dovetail groove. This is a common structural design. The fixed bracket 7 can move along the X-Y axis direction, and the height of the fixed bracket 7 in the Z axis direction is adjustable.

[0020] By axially limiting the turning gear coupling of the rotating unit, the problem of excessive axial movement is eliminated during turning. On the one hand, when grinding the bearing, it can ensure that the main shaft and the bearing do circular movement on the fixed contact surface, accurately reflecting the contact surface between the shaft and the bearing; on the other hand, when aligning the rotating unit, it avoids large data errors caused by excessive axial movement, which is conducive to more accurate alignment data.

Claims

1. A device for preventing axle movement of a coupling disc, comprising a base and a load shaft, characterized in that: The invention comprises a driving device installed on a base, the driving device is provided with a rotating shaft, couplings are installed on the rotating shaft and the load shaft; the driving device drives the coupling through the rotating shaft, and the coupling drives the load shaft to turn; a fixed bracket is also installed on the base, a groove frame is fixedly connected to the upper end of the fixed bracket, a limit rod which can be moved up and down and positioned is provided in the middle of the groove frame, and clamping rods which can be moved left and right and positioned are respectively installed on the two side frames of the groove frame.

2. The device for preventing axle movement of a coupling disc according to claim 1 is characterized in that: The limit rod is slidably mounted in the slide groove in the middle of the groove frame to achieve up and down movement. The limit rod is positioned by a bolt screwed on the side wall of the groove frame passing through the slide groove and screwed to press on the limit rod.

3. The device for preventing axle movement of a coupling plate according to claim 1, characterized in that: The limiting rod is provided with a thread, which is screwed into a screw hole in the middle of the groove frame to achieve up and down movement. A nut is screwed into the upper end of the limiting rod, and the positioning of the limiting rod is achieved by screwing the nut.

4. The device for preventing axle movement of a coupling plate according to claim 1, characterized in that: The clamping rod is slidably mounted in the slide groove of the grooved frame side frame to achieve left and right movement. The clamping rod is positioned by bolts screwed on the grooved frame side frame passing through the slide groove and rotating to press on the clamping rod.

5. The device for preventing axle movement of a coupling plate according to claim 1, characterized in that: The clamping rod is provided with a thread, which is screwed into a screw hole on the side frame of the grooved frame to realize left and right movement. A nut is screwed on the clamping rod, and the positioning of the clamping rod is realized by screwing the nut.

6. The device for preventing axle movement of a coupling disc according to claim 1, characterized in that: The driving device is slidably mounted on the base, and the load shaft and the driving shaft are located on the same axis, which is convenient for the couplings on the load shaft and the driving shaft to be matched.

7. The device for preventing axle movement of a coupling plate according to claim 1, characterized in that: The fixed bracket is slidably mounted on the base to achieve left-right sliding, and the height of the fixed bracket is adjustable.

8. The device for preventing axle movement of a coupling plate according to claim 1, characterized in that: The fixed bracket is slidably mounted on the base along the X-Y axis, and the Z-axis height of the fixed bracket is adjustable.

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