CN211626311U - Measuring ruler rod of slewing bearing raceway - Google Patents

Abstract

The utility model discloses a measuring ruler pole of slewing bearing raceway, two U type grooves about the both ends of ruler pole are equipped with respectively, left side, two U type inslots are movable mounting respectively and have movable measuring device, fixed measuring device, movable measuring device is that the both ends of movable measuring head pole are equipped with a sleeve pipe respectively, it is on the ruler pole to go up the cover pipe suit, go up the cover pipe on threaded connection's the left side lock bolt insert left U type groove in, the movable gauge head suit of percentage table is intraductal and fix a position fixedly through lower lock bolt in the lower cover, the end of activity gauge head is equipped with left hemisphere, movable gauge head cover between the right-hand member face of lower casing pipe and the terminal surface of left hemisphere is equipped with the spring, fixed measuring device is that the last cover pipe suit of the upper end of fixed measuring head pole is on the ruler pole, the right side lock bolt of threaded connection inserts right U type groove on the upper casing pipe, the lower extreme of fixed measuring head pole is fixed with right hemisphere, the utility model, The reading is visual and accurate, the structure is simple, and the use is convenient.

Description

Measuring ruler rod of slewing bearing raceway

Technical Field

The utility model belongs to the technical field of industrial measuring equipment, a measurement chi pole of single four point contact ball formula slewing bearing raceway is related to.

Background

At present, the single-row four-point contact ball type slewing bearing is one of the widest application range of the existing slewing bearings, and is composed of an inner ring, an outer ring and rolling bodies, compact in structure and light in weight. The raceway of the inner ring and the outer ring consists of two sections of arcs which are not concentric up and down, and the central diameter of the raceway is required to be measured in order to ensure the normal operation of the slewing bearing. The traditional measuring tool for the central diameter of the raceway of the single-row four-point contact ball type slewing bearing cannot directly measure the central diameter, only can approximately measure the central diameter, cannot ensure the precision of the central diameter of the raceway, and not only influences the processing precision but also influences the processing efficiency.

Disclosure of Invention

The utility model aims to improve the not enough of prior art and provide a measuring ruler pole of slewing bearing raceway that measurement accuracy is high, the reading is accuracy directly perceived, simple structure, convenient to use.

The utility model is realized in such a way that the measuring ruler rod of the slewing bearing roller path is characterized in that two ends of the ruler rod are respectively provided with a left U-shaped groove and a right U-shaped groove, a movable measuring device is movably arranged in the left U-shaped groove, a fixed measuring device is movably arranged in the right U-shaped groove, the movable measuring device is characterized in that two ends of the movable measuring head rod are respectively provided with a sleeve, the upper sleeve is sleeved on the ruler rod, a left upper locking bolt which is connected with the upper sleeve by screw thread is inserted into the left U-shaped groove, the movable measuring head of the dial indicator is sleeved in the lower sleeve and is positioned and fixed by the lower locking bolt, the tail end of the movable measuring head is provided with a left hemisphere, the movable measuring head sleeve between the right end surface of the lower sleeve and the end surface of the left hemisphere is sleeved with a spring, the fixed measuring device is that the upper sleeve of the fixed measuring head rod is sleeved on the ruler rod, the lower end of the fixed measuring head rod is fixed with a right hemisphere.

Compared with the prior art, the utility model has the following characteristics of showing and positive effect: the utility model discloses a be equipped with U type groove at the both ends of chi pole, install activity measuring device and fixed measuring device respectively in two U type grooves, two measuring device cooperations, change the position through upper sleeve pipe slip on the chi pole, adopt to lock after the location and tie fixedly, can realize the measurement of slewing bearing inner and outer lane of different sizes, realize that a chi is multi-purpose, reduced quantity, lock the bolt and stretch into in the U type groove simultaneously, avoid measuring device to rotate; the movable measuring device consists of a dial indicator, a spring and a hemisphere, the dial indicator is high in precision and visual in reading, the dial indicator can be read only by seeing that a pointer reaches a limit point, the hemisphere is in four-point contact with a circular arc of a rolling way, when the hemisphere is directly in contact with the rolling way to measure and is closer to an actual working condition, measured data is closer to a theoretical value, the spring with proper elasticity is selected, the hemisphere can be firmly clamped in the rolling way and cannot move, and the measurement is more accurate.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of another usage of the present invention.

In the figure: 1. the measuring instrument comprises a ruler rod, 2, a left U-shaped groove, 3, a right U-shaped groove, 4, a movable measuring head rod, 5, a left upper locking bolt, 6, a dial indicator, 7, a left hemisphere, 8, a spring, 9, a lower locking bolt, 10, a fixed measuring head rod, 11, a right upper locking bolt, 12 and a right hemisphere.

Detailed Description

A measuring ruler rod of a slewing bearing raceway, refer to fig. 1, there are left U-shaped groove 2, right U-shaped groove 3 separately at both ends of the ruler rod 1, the movable measuring device of the movable mounting in the left U-shaped groove 2, the movable mounting has fixed measuring devices in the right U-shaped groove 3, the said movable measuring device is that both ends of the movable gauge head rod 4 have a sleeve pipe separately, the upper sleeve pipe is fitted over the ruler rod 1, the upper left locking bolt 5 screwed on the upper sleeve pipe inserts in the U-shaped groove 2, the upper left locking bolt 5 can be slipped in the U-shaped groove 2, the movable gauge head of the dial indicator 6 is fitted over and fixed in the lower sleeve pipe and positioned through the lower locking bolt 9, the end of the movable gauge head has left hemispheres 7, the movable gauge head is fitted over and equipped with the spring 8 between end surface of the right end surface of the lower sleeve pipe and left hemispheres 7, is used for; the fixed measuring device is characterized in that an upper sleeve at the upper end of a fixed measuring head rod 10 is sleeved on a ruler rod 1, a right upper locking bolt 11 in threaded connection with the upper sleeve is inserted into a right U-shaped groove 3, and a right hemisphere 12 is fixed at the lower end of the fixed measuring head rod 10.

Use the utility model discloses the time, the device is through inside the raceway with two left and right hemisphere 7 cards, through reading the numerical value of percentage table 6, realizes the measurement to the raceway, simultaneously with the removal about movable gauge head pole 4 and fixed gauge head pole 10 on chi pole 1 to through locking bolt 5 on a left side, locking bolt 11 on the right side fix on chi pole 1, realize carrying out the raceway to the slewing bearing of different specifications and measure. The positions of the dial indicator 6 and the left hemisphere 7 can be exchanged, and the ball head faces outwards; the right hemisphere 12 is outside the device, and the ball head faces outwards, as shown in fig. 2, so that the measurement of the inner raceway of the outer ring of the slewing bearing can be realized.

Claims (1)

1. A measuring ruler rod of a slewing bearing raceway is characterized in that two ends of the ruler rod are respectively provided with a left U-shaped groove and a right U-shaped groove, a movable measuring device is movably arranged in the left U-shaped groove, a fixed measuring device is movably arranged in the right U-shaped groove, the movable measuring device is characterized in that two ends of a movable measuring head rod are respectively provided with a sleeve, an upper sleeve is sleeved on a ruler rod, a left upper locking bolt in threaded connection with the upper sleeve is inserted into a left U-shaped groove, the movable measuring head of the dial indicator is sleeved in the lower sleeve and is positioned and fixed through the lower locking bolt, the tail end of the movable measuring head is provided with a left hemisphere, the movable measuring head sleeve between the right end face of the lower sleeve and the end face of the left hemisphere is provided with a spring, the fixed measuring device is characterized in that an upper sleeve at the upper end of a fixed measuring head rod is sleeved on the ruler rod, a right upper locking bolt in threaded connection on the upper sleeve is inserted into the right U-shaped groove, and the lower end of the fixed measuring head rod is fixed with the right hemisphere.

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