Spherical standard roller measuring instrument

Abstract

The utility model provides a spherical standard roller measuring instrument. The spherical standard roller measuring instrument comprises a base, a platform, a fixing rod, a measuring rod, a dial gauge, a gauge block and a steel ball, the platform is horizontally placed on the base, and the spherical standard roller to be measured is vertically placed on the platform; the number of the fixing rods is two, and the fixing rods include the first fixing rod and the second fixing rod, and the two fixing rods are perpendicularly connected to the base and located on the two sides of the spherical standard roller to be measured respectively. The measuring rod is vertically connected to the first fixing rod, and the dial gauge is vertically connected to the second fixing rod. The number of the gauge blocks is two, the two gauge blocks are vertically placed on the platform and are respectively located at two sides of the spherical standard roller to be measured, the upper ends of the two gauge blocks are respectively provided with a steel ball, the two steel balls are in contact with the spherical standard roller to be measured, the first steel ball is in contact with the measuring rod, and the second steel ball is in contact with the tip of the indicating gauge; the height of the measuring instrument can be moved to complete the measurement of the spherical roller of which the size height is greater than 100mm.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearings, in particular to a spherical standard roller measuring instrument. Background Art

[0002] Bearing rollers are components that bear loads during the operation of bearings, and have a great impact on the rotation accuracy, vibration, noise and flexibility of bearings; they are the main factors affecting the service life of bearings. Therefore, the accuracy of roller size detection is particularly important. At present, the sizes of small spherical rollers are measured on a horizontal length measuring instrument. The roller is placed on the workbench, and the height of the workbench is moved to complete the measurement of the size of the spherical roller. Since the lifting height of the workbench of the horizontal length measuring instrument is 100 mm, the sizes of spherical rollers with a measurement height exceeding 100 mm cannot be measured. Content of the Utility Model

[0003] In view of the above problems, the purpose of this application is to provide a spherical standard roller measuring instrument, which can complete the measurement of spherical rollers with a size height greater than 100 mm by moving the height of the measuring instrument.

[0004] To achieve the above partial or all of the purposes or other purposes, the following technical solution is provided in this application: A spherical standard roller measuring instrument includes a base, a platform, a fixed rod, a measuring rod, an indicating gauge, gauge blocks, and steel balls. The platform is placed flat on the base, and the spherical standard roller to be measured is placed upright on the platform. There are two fixed rods, a first fixed rod and a second fixed rod. The two fixed rods are vertically connected to the base and are respectively located on both sides of the spherical standard roller to be measured. The measuring rod is vertically connected to the first fixed rod, and the indicating gauge is vertically connected to the second fixed rod. There are two gauge blocks, a first gauge block and a second gauge block. The two gauge blocks are vertically placed on the platform and are respectively located on both sides of the spherical standard roller to be measured. A first steel ball is placed on the upper end of the first gauge block, and a second steel ball is placed on the upper end of the second gauge block. The first steel ball contacts the spherical standard roller to be measured, the first steel ball contacts the measuring rod, the second steel ball contacts the spherical standard roller to be measured, and the second steel ball contacts the tip of the indicating gauge.

[0005] Further, the central axes of the first fixed rod, the second fixed rod, and the central axis of the spherical standard roller to be measured are in the same horizontal plane; the centers of the first steel ball and the second steel ball are located on the maximum diameter plane of the spherical standard roller to be measured.

[0006] Further, it also includes two sets of positioning components, namely the first positioning component and the second positioning component; the first positioning component and the second positioning component respectively include a moving sleeve, a locking ring, and a locking bolt; the moving sleeve includes a first sleeve ring and a second sleeve ring, the first sleeve ring and the second sleeve ring are perpendicularly connected to each other, the first sleeve ring is sleeved on the fixed rod, the second sleeve ring of the first positioning component is sleeved on the measuring rod, and the second sleeve ring of the second positioning component is sleeved on the dial indicator; the locking ring is sleeved on the fixed rod, and the locking ring is located below the first sleeve ring; an opening is provided on the second sleeve ring of the first positioning component, and the locking bolt passes through the opening and contacts the measuring rod; an opening is provided on the second sleeve ring of the second positioning component, and the locking bolt passes through the opening and contacts the dial indicator; the measuring rod is connected to the first fixed rod through the first positioning component, and the dial indicator is connected to the second fixed rod through the second positioning component.

[0007] Further, the fixed rod is a threaded rod, the first sleeve ring is slidably connected to the fixed rod, and the locking ring is threadedly connected to the fixed rod.

[0008] Further, it also includes a simulation block, the length of the simulation block is equal to the maximum diameter of the spherical standard roller to be measured plus the diameters of two steel balls, the simulation block is placed flat on the platform, and the simulation block is located between the measuring rod and the dial indicator.

[0009] Compared with the prior art, the beneficial effects of the present utility model are: the height of the measuring rod is adjusted by a threaded rod, and the measuring point is a flat anvil. On the basis of not changing the original measuring principle and method, the problem that large spherical rollers cannot be detected is solved; by moving the height of the measuring instrument, the measurement of spherical rollers with a size height greater than 100 mm is completed. Description of the Drawings

[0010] Figure 1 is a schematic structural diagram of the present utility model;

[0011] Figure 2 is a top view of the present utility model;

[0012] Figure 3 is a schematic structural diagram when adjusting the zero position of the instrument;

[0013] Figure 4 is a calculation schematic diagram;

[0014] In the figure: 1, base; 2, platform; 3-1, first fixed rod; 3-2, second fixed rod; 4, measuring rod; 5, dial indicator; 6-1, first measuring block; 6-2, second measuring block; 7-1, first steel ball; 7-2, second steel ball; 8-1, first sleeve ring; 8-2, second sleeve ring; 9, locking ring; 10, locking bolt; 11, simulation block. Detailed Embodiment

[0015] To make the structure and function of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model.

[0016] See the attached Figures 1-4 , a spherical standard roller measuring instrument, comprising a base 1, a platform 2, a fixed rod, a measuring rod 4, an indicating gauge 5, gauge blocks, and steel balls; the platform 2 is placed flat on the base 1, and the spherical standard roller to be measured is placed upright on the platform 2; there are two fixed rods, a first fixed rod 3-1 and a second fixed rod 3-2, the two fixed rods are vertically connected to the base 1, and the two fixed rods are respectively located on both sides of the spherical standard roller to be measured; the measuring rod 4 is vertically connected to the first fixed rod 3-1, and the indicating gauge 5 is vertically connected to the second fixed rod 3-2; there are two gauge blocks, a first gauge block 6-1 and a second gauge block 6-2, the two gauge blocks are vertically connected to the platform 2, the two gauge blocks are respectively located on both sides of the spherical standard roller to be measured, a first steel ball 7-1 is placed on the upper end of the first gauge block 6-1, a second steel ball 7-2 is placed on the upper end of the second gauge block 6-2, the first steel ball 7-1 contacts the spherical standard roller to be measured, the first steel ball 7-1 contacts the measuring rod 4, the second steel ball 7-2 contacts the spherical standard roller to be measured, and the second steel ball 7-2 contacts the tip of the indicating gauge 5.

[0017] Furthermore, the central axes of the first fixed rod 3-1, the second fixed rod 3-2, and the spherical standard roller to be measured are on the same horizontal plane; the centers of the first steel ball 7-1 and the second steel ball 7-2 are located on the maximum diameter plane of the spherical standard roller to be measured.

[0018] Furthermore, it further includes two sets of positioning components, a first positioning component and a second positioning component; the first positioning component and the second positioning component respectively include a movable sleeve, a locking ring 9, and a locking bolt 10; the movable sleeve includes a first sleeve 8-1 and a second sleeve 8-2, the first sleeve 8-1 and the second sleeve 8-2 are perpendicularly connected to each other, the first sleeve 8-1 is sleeved on the fixed rod, the second sleeve of the first positioning component is sleeved on the measuring rod 4, and the second sleeve of the second positioning component is sleeved on the indicating gauge 5; the locking ring 9 is sleeved on the fixed rod, and the locking ring 9 is located below the first sleeve 8-1; an opening is provided on the second sleeve 8-2 of the first positioning component, and the locking bolt 10 passes through the opening and contacts the measuring rod 4; an opening is provided on the second sleeve 8-2 of the second positioning component, and the locking bolt 10 passes through the opening and contacts the indicating gauge 5; the measuring rod 4 is connected to the first fixed rod 3-1 through the first positioning component, and the indicating gauge 5 is connected to the second fixed rod 3-2 through the second positioning component.

[0019] Further, the fixed rod is a threaded rod. The first ferrule 8-1 is slidably connected to the fixed rod, and the locking ring 9 is threadedly connected to the fixed rod. A thread matching the fixed rod is provided inside the locking ring 9. The locking ring 9 can move up and down and be fixed on the fixed rod through the thread. There is a gap between the first ferrule 8-1 of the moving sleeve and the fixed rod, and they are not fixedly connected. The moving sleeve is connected to the fixed rod through the fixation of the locking ring 9 and does not slide down.

[0020] Further, it further includes a simulation block 11. The length of the simulation block 11 is equal to the maximum diameter of the spherical standard roller to be measured plus the diameters of two steel balls. The simulation block 11 is placed flat on the platform, and the simulation block 11 is located between the measuring rod 4 and the dial indicator 5.

[0021] Further, the calculation process is as follows (as Figure 4 )

[0022] Known: Half of the height C of the spherical standard roller to be measured = 114.5 mm, the diameter d of the steel ball 钢球 = 19.052 mm (selected), the radius r of the steel ball 钢球 = d / 2 = 9.526 mm, the maximum diameter Ф of the spherical standard roller to be measured = 85 mm;

[0023] Seek: The height h of the gauge block = C - d / 2 = 104.974 mm, the length D of the simulation block 11 = Ф + 2d = 85 + 19.052×2 = 123.104 mm.

[0024] Further, the measurement process is as follows:

[0025] Step 1: Adjust the height of the measurement point according to the dimensions of the gauge blocks and steel balls placed. Adjusting the height of the measurement point means adjusting the height of the dial indicator 5 to make the measurement point contact the steel ball, and the position of the threaded rod remains unchanged. When adjusting the height of the measuring rod 4 and the dial indicator 5 on the threaded rod, it can always maintain one direction or be adjusted in multiple directions. No matter in which direction, it can be adjusted to contact the steel ball.

[0026] Step 2: Combine the 123.104 mm simulation block 11 as the standard (regard the deviation of the simulation block 11 as zero). Place the 123.104 mm simulation block 11 between the measuring rod 4 and the dial indicator 5, and adjust the instrument push rod to make the dial indicator 5 indicate zero (as Figure 3 )

[0027] Step 3: Remove the gauge blocks, place the spherical standard roller to be measured on the platform 2, and then place two pairs of gauge blocks and steel balls on both sides of the roller respectively; slowly move the spherical roller perpendicular to the direction of the measuring rod 4, move it manually back and forth to make the indicating gauge 5 show the maximum value; at this time, read the reading on the indicating gauge 5, which is the dimensional deviation value of the measuring point of the roller. The heights of the gauge blocks and steel balls placed on both sides of the roller are the same, and the positions where the steel balls contact the two measuring points are the same, ensuring that the two measuring rods 4 are at the same height (such as Figure 1 ).

[0028] The above-disclosed are only the preferred embodiments of the present application. Of course, the scope of rights of the present application cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A spherical standard roller measuring instrument, characterized in that: It includes a base, a platform, a fixed rod, a measuring rod, an indicator gauge, gauge blocks, and steel balls; place the platform flat on the base, and place the spherical standard roller to be measured upright on the platform; there are two fixed rods, a first fixed rod and a second fixed rod, and the two fixed rods are vertically connected to the base and are respectively located on both sides of the spherical standard roller to be measured; the measuring rod is vertically connected to the first fixed rod, and the indicator gauge is vertically connected to the second fixed rod; there are two gauge blocks, a first gauge block and a second gauge block, and the two gauge blocks are vertically placed on the platform and are respectively located on both sides of the spherical standard roller to be measured. A first steel ball is placed on the upper end of the first gauge block, and a second steel ball is placed on the upper end of the second gauge block. The first steel ball contacts the spherical standard roller to be measured, the first steel ball contacts the measuring rod, the second steel ball contacts the spherical standard roller to be measured, and the second steel ball contacts the tip of the indicator gauge.

2. The spherical standard roller measuring instrument according to claim 1, characterized in that: The central axes of the first fixed rod, the second fixed rod, and the spherical standard roller to be measured are on the same horizontal plane; the centers of the first steel ball and the second steel ball are located on the maximum diameter plane of the spherical standard roller to be measured.

3. The spherical standard roller measuring instrument according to claim 1, characterized in that: It further includes two sets of positioning components, a first positioning component and a second positioning component; the first positioning component and the second positioning component respectively include a movable sleeve, a locking ring, and a locking bolt; the movable sleeve includes a first sleeve ring and a second sleeve ring, the first sleeve ring and the second sleeve ring are perpendicularly connected to each other, the first sleeve ring is sleeved on the fixed rod, the second sleeve ring of the first positioning component is sleeved on the measuring rod, and the second sleeve ring of the second positioning component is sleeved on the indicator gauge; the locking ring is sleeved on the fixed rod and is located below the first sleeve ring; an opening is provided on the second sleeve ring of the first positioning component, and the locking bolt passes through the opening and contacts the measuring rod; an opening is provided on the second sleeve ring of the second positioning component, and the locking bolt passes through the opening and contacts the indicator gauge; the measuring rod is connected to the first fixed rod through the first positioning component, and the indicator gauge is connected to the second fixed rod through the second positioning component.

4. A spherical standard roller measuring instrument according to claim 3, characterized in that: The fixed rod is a threaded rod, the first sleeve ring is slidably connected to the fixed rod, and the locking ring is threadedly connected to the fixed rod.

5. A spherical standard roller measuring instrument according to claim 1, characterized in that: It further includes a simulation block, the length of the simulation block is equal to the maximum diameter of the spherical standard roller to be measured plus the diameters of the two steel balls, the simulation block is placed flat on the platform, and the simulation block is located between the measuring rod and the indicator gauge.

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