CN204788220U - Shaft coupling aligning device - Google Patents

Abstract

A shaft coupling aligning device, comprising a main shaft three-jaw clamping frame, the main shaft three-jaw clamping frame includes a main shaft rod, an adjusting nut is fixed on the main shaft rod, a fixed ring and a sliding ring are sleeved on the main shaft rod, and the fixed ring and the main shaft The rod is fixedly connected, the sliding ring is slidingly connected with the spindle rod, the fixed ring is connected with the three clamping movable claws through the movable rotating pair, the three clamping movable claws are respectively connected with the three movable push rods through the movable rotating pair, and the movable push rod passes through The movable rotating pair is connected with the sliding ring, the spindle rod is vertically connected with the axial clamping frame, the axial clamping frame is vertically connected with the radial clamping frame, and the axial clamping frame and the radial clamping frame are respectively fixed and clamped. Axial and radial measurement dial indicator measurement, rotating the three-jaw clamping frame of the main shaft, so that the contact of the axial and radial measurement dial indicator rotates one circle along the surface of the coupling to be tested, and whether an angle occurs through the dial indicator The deflection is judged whether the reference coupling is concentric with the measured coupling, the measurement is fast and accurate, and it has the characteristics of strong versatility.

Description

A coupling alignment device

technical field

The utility model relates to a shaft coupling alignment device.

Background technique

Couplings, as a shaft connection, are widely used in the mechanical transmission industry. When the coupling is installed, the two half-couplings should be centered to minimize the deviation of the two-axis shafting. At present, there are mainly two types of existing coupling alignment devices: one is to rely on magnetic force to attach the alignment device to the coupling half for detection. The adsorption is weak, causing the meter frame to move frequently, affecting the measurement accuracy. Another measurement tool is usually composed of a measuring instrument, an instrument hoop, a measuring frame and a clamping frame. The disadvantage of this measuring tool is that a special instrument hoop must be made according to the outer diameter of the coupling for each measurement, and the specifications are not universal. , the operation is inconvenient.

Contents of the invention

In order to overcome the deficiencies of the above-mentioned prior art, the purpose of this utility model is to propose a coupling alignment device, which can measure couplings with different outer diameters, and is used for alignment and alignment of couplings, and the measurement is fast and accurate High performance, easy to use and disassemble, and strong versatility.

In order to achieve the above object, the technical solution adopted by the utility model is:

A shaft coupling aligning device, comprising a main shaft three-jaw clamping frame 3, the main shaft three-jaw clamping frame 3 includes a main shaft rod 9, the shaft end of the main shaft rod 9 is covered with an adjusting nut 2 with a washer, and the adjusting nut 2 passes through the The thread is fixed on the main shaft rod 9, the main shaft rod 9 is covered with a fixed ring 12 and a sliding ring 13, the fixed ring 12 is fixedly connected with the main shaft rod 9, the sliding ring 13 is slidingly connected with the main shaft rod 9, and the fixed ring 12 is connected to the Three clamping movable claws 10 are connected, and the three clamping movable claws 10 are respectively connected with three movable push rods 11 through a movable rotating pair, and the movable push rod 11 is connected with a sliding ring 13 through a movable rotating pair, and the three-claw clamping frame of the main shaft The spindle rod 9 of 3 is vertically connected with the axial clamping frame 5 through threads, and the axial measuring dial indicator 4 is fixedly clamped on the axial clamping frame 5, and the axial clamping frame 5 and the radial clamping frame 7 pass through The threads are vertically connected, and the radial measuring dial indicator 6 is fixedly clamped on the radial clamping frame 7 .

The parts where the front ends of the three clamping movable jaws 10 contact the inner surface of the reference shaft coupling 1 are narrow support bars 14 .

The three clamping movable claws 10 are respectively arranged around the spindle rod 9 at intervals of 120°, and the three clamping movable claws 10 have the same diameter and the same size.

The three movable push rods 11 have the same size.

Since the existing coupling alignment devices mostly use the outer surface circle of the coupling as the detection standard, and the machining accuracy of the inner surface circle of the coupling is often higher than the outer surface circle due to the cooperation with the shaft, therefore, The utility model takes the inner surface of the shaft coupling as the measurement reference standard, can find the central axis of the reference shaft coupling more accurately, thereby improving the concentric alignment accuracy of the shaft coupling, high measurement accuracy, and strong adjustability; the utility model The parts used in the new type have simple structure, convenient manufacture, low processing cost, and convenient operation and disassembly; by calculating and adjusting the length of the movable push rod and the clamping movable claw, the measurement of the central axis of the large-diameter coupling can be realized , By adjusting the length of the extended spindle rod, it can realize the alignment of long-distance couplings, and can measure couplings with different outer diameters, which has strong versatility.

Description of drawings

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a structural diagram of the main shaft three-claw clamping frame 3 .

FIG. 3 is a partially enlarged view of the narrow support bar 14 .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Referring to accompanying drawings 1 and 2, a coupling aligning device includes a main shaft three-jaw clamping frame 3, a main shaft three-jaw clamping frame 3 includes a main shaft rod 9, and the shaft end of the main shaft rod 9 is covered with a washer Adjusting nut 2, adjusting nut 2 is fixed on the main shaft rod 9 by threads, the main shaft rod 9 is covered with a fixed ring 12 and a sliding ring 13, the fixed ring 12 is fixedly connected with the main shaft rod 9, and the sliding ring 13 is slidably connected with the main shaft rod 9, The fixed ring 12 is connected with the three clamping movable claws 10 through the movable rotating pair, and the three clamping movable claws 10 are respectively connected with the three movable push rods 11 through the movable rotating pair, and the movable push rod 11 is connected with the sliding ring 13 through the movable rotating pair Connection, the spindle rod 9 of the main shaft three-jaw clamping frame 3 is vertically connected with the axial clamping frame 5 through threads, and the axial clamping frame 5 is fixedly clamped with the axial measuring dial indicator 4 and the axial clamping frame 5 It is vertically connected with the radial clamping frame 7 through threads, and the radial measuring dial indicator 6 is fixedly clamped on the radial clamping frame 7 .

The three clamping movable claws 10 are respectively arranged around the spindle rod 9 at intervals of 120°, and the three clamping movable claws 10 have the same diameter and the same size.

The three movable push rods 11 have the same size.

Referring to FIG. 3 , the parts where the front ends of the three clamping movable claws 10 contact the inner surface of the reference shaft coupling 1 are narrow support bars 14 . Due to various reasons such as processing and manufacturing, there is a small degree of out-of-roundness on the inner surface of the coupling. The purpose of using a narrow support bar to contact the inner surface of the reference coupling 1 is to reduce the contact area and avoid the spindle rod during the measurement process. The axis of 9 is deflected, and the central axis of the reference shaft coupling 1 can be measured more accurately.

The working principle of the utility model is:

Screw in the adjusting nut 2 with a washer, push the movable push rod 11, so that the clamping movable claw 10 opens a certain angle, and the narrow support bar 14 of the clamping movable claw 10 is stuck on the inner surface of the reference shaft coupling 1, so as to Realize the measurement with reference to the central axis of the coupling 1, and then assemble the axial clamping frame 5, the axial measuring dial indicator 4, the radial clamping frame 7, and the radial measuring dial indicator 6 in sequence, so that the axial measuring percentage Table 4, the radial measurement dial indicator 6 is close to the surface of the measured coupling 8, and is adjusted and fixed through the thread. The contact of the radial measurement dial indicator 6 rotates one circle along the surface of the measured coupling 8, and whether the angular deflection of the axial measurement dial indicator 4 and the radial measurement dial indicator 6 occurs can determine whether the reference coupling 1 and the Whether the tested coupling 8 is concentric.

Claims (4)

1. A shaft coupling alignment device, comprising a main shaft three-jaw clamping frame (3), is characterized in that the main shaft three-jaw clamping frame (3) comprises a main shaft rod (9), and the shaft end of the main shaft rod (9) An adjusting nut (2) with a washer is sleeved, and the adjusting nut (2) is fixed on the main shaft rod (9) through threads, and the main shaft rod (9) is covered with a fixed ring (12) and a sliding ring (13), and the fixed ring (12) is fixedly connected with the main shaft rod (9), and the sliding ring (13) is slidingly connected with the main shaft rod (9). The movable claws (10) are respectively connected with the three movable push rods (11) through the movable rotating pair, and the movable push rods (11) are connected with the sliding ring (13) through the movable rotating pair, and the main shaft three-jaw clamping frame (3) The main shaft rod (9) and the axial clamping frame (5) are vertically connected by threads, and the axial clamping frame (5) is fixedly clamped with an axial measuring dial indicator (4), and the axial clamping frame (5) It is vertically connected with the radial clamping frame (7) through threads, and the radial measuring dial indicator (6) is fixedly clamped on the radial clamping frame (7). 2. A shaft coupling aligning device according to claim 1, characterized in that, the parts where the front ends of the three clamping movable jaws (10) contact the inner surface of the reference shaft coupling (1) are narrow Support strips (14). 3. A shaft coupling alignment device according to claim 1 or 2, characterized in that, the three clamping movable jaws (10) are respectively arranged around the main shaft rod (9) at intervals of 120°, and the three Two clamping movable claws (10) are equal in diameter. 4. A shaft coupling alignment device according to claim 1, characterized in that the three movable push rods (11) are of the same size.