A measuring tool for measuring perpendicularity

Abstract

The utility model belongs to the field of measuring tool, specifically disclose a kind of measuring tool for measuring perpendicularity, including bearing ring, support, measuring rod and dial gauge, the support includes bottom plate, upper boss, lower boss and front boss;The front end of upper end surface of the bottom plate is equipped with upper boss, and the upper end surface middle part of upper boss is equipped with hexagonal hole;The measuring rod is arranged in hexagonal hole, and dial gauge is installed in the lower end of measuring rod;The front end of two sides of bottom plate lower end surface is equipped with front boss respectively;The rear of the front boss is equipped with lower boss, and the axis of lower boss is perpendicular to the axis of front boss;The support is equipped on bearing ring, and the lower end surface of lower boss is in contact with the upper end surface of bearing ring, and the taper boss front end of front boss is in contact with the side wall of bearing ring;The measuring head front end of dial gauge is in contact with the side end surface of bearing ring;The measuring tool is small in size, easy to carry, and accurate and fast in measurement, suitable for different measurement environment.

Description

Technical Field

[0001] This utility model belongs to the field of measuring tools, specifically relating to a measuring tool for measuring perpendicularity. Background Technology

[0002] The perpendicularity tolerance between the bearing ring sidewall and the upper end face of a large bearing is an important parameter. If the perpendicularity is not up to standard, the bearing will generate a certain deflection force during operation, resulting in excessive noise, uneven rotation, and reduced bearing service life.

[0003] Because of the large size of large bearings, when inspecting the bearing races, the bearing races must first be placed on an inspection platform, and then tools must be used to move the bearing races to a suitable position for inspection. This process is time-consuming and labor-intensive, and the measuring tools cannot be moved, carried, or used for rapid measurement. There is an urgent need for a method to solve this problem. Utility Model Content

[0004] In view of the problems existing in the background art, the present invention provides a measuring tool for measuring verticality.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: A measuring tool for measuring perpendicularity, comprising a bearing ring, a support, a measuring rod, and a dial indicator. The support includes a base plate, an upper boss, a lower boss, and a front boss. The base plate is a rectangular flat plate, with an upper boss at the front end of its upper surface. A hexagonal hole is located in the center of the upper surface of the upper boss, and the axis of the hexagonal hole is perpendicular to the base plate. Multiple threaded holes A are located on the front end face of the upper boss, and the threaded holes A communicate with the hexagonal hole. Fixing bolts are provided on the threaded holes A. The measuring rod passes through the hexagonal hole. Inside the square hole, a dial indicator is installed at the lower end of the measuring rod; front bosses are respectively provided on both sides of the front end face of the base plate, the front bosses are perpendicular to the base plate, and a truncated cone is provided below the rear end face of the front boss, the axis of the truncated cone is perpendicular to the axis of the front boss; a lower boss is provided behind the front boss, the axis of the lower boss is perpendicular to the axis of the front boss; the support is set on the bearing ring, the lower end face of the lower boss contacts the upper end face of the bearing ring, and the front end of the truncated cone of the front boss contacts the side wall of the bearing ring; the front end of the measuring head of the dial indicator contacts the side end face of the bearing ring.

[0006] The hexagonal hole is a through hole, and the hole wall of the hexagonal hole is provided with a vertical overflow channel, which is an arc-shaped groove.

[0007] The truncated cone is a circular truncated cone, with a circular spherical head at the top.

[0008] The lower boss is a triangular prism, and a cylindrical head is provided at the lower end of the lower boss.

[0009] The measuring rod is a hexagonal prism, and the measuring rod is adapted to a hexagonal hole.

[0010] The front boss is a cuboid, and its height is greater than that of the lower boss.

[0011] The measuring rod has a mounting hole at its lower end for mounting a dial indicator. The lower end of the mounting hole has an open groove, and one side of the mounting hole has a threaded hole B for mounting a fastening bolt.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a measuring tool for measuring verticality. The measuring tool is small in size, easy to carry, accurate and fast in measurement, and suitable for different measurement environments. Attached Figure Description

[0013] Figure 1 This is a top view of the present invention in use.

[0014] Figure 2 This is the main view at point A.

[0015] Figure 3 for Figure 2 A schematic diagram after changing the length of the measuring rod.

[0016] Figure 4 This is a schematic diagram of the support.

[0017] Figure 5 This is a schematic diagram of the support.

[0018] Figure 6 This is a schematic diagram of the support.

[0019] Figure 7 This is a schematic diagram of the lower boss.

[0020] Figure 8 This is a schematic diagram of a frustum.

[0021] Figure 9 This is a schematic diagram of a hexagonal hole.

[0022] Figure 10 This is a side view of the measuring rod.

[0023] In the diagram: 1. Bearing ring, 2. Support, 3. Measuring rod, 4. Dial indicator, 5. Fixing bolt, 21. Base plate, 22. Upper boss, 23. Lower boss, 24. Front boss, 25. Hexagonal hole, 251. Overflow channel, 26. Threaded hole A, 27. Frustum, 28. Ball head, 29. Cylindrical head, 31. Mounting hole, 32. Opening groove, 33. Threaded hole B. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. 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.

[0025] The following detailed description of the specific embodiments of this utility model, in conjunction with the accompanying drawings, further illustrates the following: A measuring tool for measuring perpendicularity includes a bearing ring 1, a support 2, a measuring rod 3, and a dial indicator 4. The support 2 includes a base plate 21, an upper boss 22, a lower boss 23, and a front boss 24. The base plate 21 is a rectangular flat plate, with an upper boss 22 at the front end of the upper surface of the base plate 21. A hexagonal hole 25 is provided in the middle of the upper surface of the upper boss 22, and the axis of the hexagonal hole 25 is perpendicular to the base plate 21. The hexagonal hole 25 is a through hole, and a vertical overflow channel 251 is provided on the hole wall of the hexagonal hole 25. The overflow channel 251 is an arc-shaped groove. The overflow channel 251 is used to allow lubricating oil or other liquids in the hexagonal hole 25 to flow out, so as not to affect the measuring rod 3 in the hexagonal hole. The verticality within the hole 25; the front end face of the upper boss 22 is provided with multiple threaded holes A26, which are connected to the hexagonal hole 25, and a fixing bolt 5 is provided on the threaded hole A26; the measuring rod 3 passes through the hexagonal hole 25, and the measuring rod 3 is a hexagonal prism, which is adapted to the hexagonal hole 25; the lower end of the measuring rod 3 is provided with a mounting hole 31 for mounting a dial indicator 4, and the lower end of the mounting hole 31 is provided with an opening groove 32, and one side of the mounting hole 31 is provided with a threaded hole B33 for mounting a fastening bolt; in this embodiment, in order to increase the deformation resistance of the measuring rod 3, the measuring rod 3 is set as a hexagonal prism; during use, after the measuring rod 3 passes through the hexagonal hole 25, the fixing bolt 5 can be screwed into the threaded hole A26 to fix the measuring rod 3 in the hexagonal hole 25. The square hole 25 is used to prevent the measuring rod 3 from shifting and affecting the measurement accuracy. The dial indicator 4 is installed at the lower end of the measuring rod 3. A front boss 24 is provided on both sides of the lower end face of the base plate 21. The front boss 24 is a cuboid, and its height is greater than that of the lower boss 23. The front boss 24 is perpendicular to the base plate 21. A frustum 27 is provided below the rear end face of the front boss 24, and the axis of the frustum 27 is perpendicular to the axis of the front boss 24. The frustum 27 is a truncated cone, and a circular ball head 28 is provided at the top of the frustum 27. In actual use, when the ball head 28 contacts the side wall of the bearing ring 1, it can effectively reduce the contact area, changing the surface contact to a point contact, reducing the measurement error caused by dust on the contact area. It can also reduce the impact of long-term use on the cone. The top of platform 27 is worn, while ball head 28 can also adapt to bearing rings 1 of different specifications; a lower boss 23 is provided behind the front boss 24, and the axis of the lower boss 23 is perpendicular to the axis of the front boss 24; the lower boss 23 is a triangular prism, and a cylindrical head 29 is provided at the lower end of the lower boss 23; in actual use, when the cylindrical head 29 contacts the upper end face of the bearing ring 1, the contact area can be effectively reduced, turning surface contact into point contact, reducing the measurement error caused by dust on the contact area; the support 2 is set on the bearing ring 1, the lower end face of the lower boss 23 contacts the upper end face of the bearing ring 1, and the front end of the cone 27 of the front boss 24 contacts the side wall of the bearing ring 1; the front end of the measuring head of the dial indicator 4 contacts the side end face of the bearing ring 1.

[0026] When making the support 2 of this measuring tool, the axis of the front boss 24 of the support 2 should be perpendicular to the axis of the lower boss 23. When the measuring rod 3 is installed on the support 2, the axis of the measuring rod 3 should be parallel to the axis of the front boss 24. The measuring rod 3 is an extension of the front boss 24. When the measuring rod 3 is extended, it expands the perpendicularity tolerance so as to measure whether the perpendicularity tolerance is out of tolerance. In actual use, the measuring tool should first be placed on a standard measuring block with the same diameter as the bearing ring 1 to be measured, and the value on the dial indicator 4 should be recorded. Then, the measuring tool should be placed on the bearing ring 1 to be measured, and the value on the dial indicator 4 should be recorded. At this time, the difference between the two values ​​on the dial indicator 4 is the perpendicularity tolerance at that position.

[0027] The usage process of this utility model is as follows: First, insert the measuring rod 3 into the hexagonal hole 25, adjust the extension length of the measuring rod 3, and fix it with the fixing bolt 5; then install the dial indicator 4 at the lower end of the measuring rod 3; after installation, first place this measuring tool on a standard measuring block with the same diameter as the bearing ring 1 to be measured, and record the value on the dial indicator 4; then place this measuring tool on the bearing ring 1 to be measured, and record the value on the dial indicator 4. At this time, the difference between the two values ​​on the dial indicator 4 is the perpendicularity tolerance at that position; during measurement, this measuring tool can be placed at different positions of the bearing ring 1 to be measured, and multiple measurements can be performed to obtain the perpendicularity tolerance at different positions of the bearing ring 1; to make the measurement more accurate, the extension length of the measuring rod 3 can be adjusted, and the above steps can be repeated to obtain the perpendicularity tolerance at different height positions of the bearing ring 1.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0029] The parts of this utility model not described in detail are existing technologies.

Claims

1. A measuring tool for measuring perpendicularity, comprising a bearing ring (1), a support (2), a measuring rod (3), and a dial indicator (4), characterized in that: The support (2) includes a base plate (21), an upper boss (22), a lower boss (23), and a front boss (24); the base plate (21) is a rectangular flat plate, and the upper boss (22) is provided at the front end of the upper surface of the base plate (21). A hexagonal hole (25) is provided in the middle of the upper surface of the upper boss (22), and the axis of the hexagonal hole (25) is perpendicular to the base plate (21); the front end of the upper boss (22) is provided with multiple threaded holes A (26), which are connected to the hexagonal hole (25). A fixing bolt (5) is provided on the threaded hole A (26); the measuring rod (3) is inserted into the hexagonal hole (25), and the dial indicator (4) is installed at the lower end of the measuring rod (3); The bottom plate (21) has front bosses (24) on both sides of the lower end face. The front bosses (24) are perpendicular to the bottom plate (21). A cone (27) is provided below the rear end face of the front bosses (24). The axis of the cone (27) is perpendicular to the axis of the front bosses (24). A lower boss (23) is provided behind the front bosses (24). The axis of the lower boss (23) is perpendicular to the axis of the front bosses (24). The support (2) is set on the bearing ring (1). The lower end face of the lower boss (23) is in contact with the upper end face of the bearing ring (1). The front end of the cone (27) of the front bosses (24) is in contact with the side wall of the bearing ring (1). The front end of the measuring head of the dial indicator (4) is in contact with the side end face of the bearing ring (1).

2. The measuring tool for measuring perpendicularity according to claim 1, characterized in that: The hexagonal hole (25) is a through hole, and the hole wall of the hexagonal hole (25) is provided with a vertical overflow channel (251), which is an arc-shaped groove.

3. The measuring tool for measuring perpendicularity according to claim 1, characterized in that: The truncated cone (27) is a truncated cone, and the top of the truncated cone (27) is provided with a circular ball head (28).

4. The measuring tool for measuring perpendicularity according to claim 1, characterized in that: The lower boss (23) is a triangular prism, and the lower end of the lower boss (23) is provided with a cylindrical head (29).

5. A measuring tool for measuring perpendicularity according to claim 1, characterized in that: The measuring rod (3) is a hexagonal prism, and the measuring rod (3) is adapted to the hexagonal hole (25).

6. The measuring tool for measuring perpendicularity according to claim 1, characterized in that: The front boss (24) is a cuboid, and the height of the front boss (24) is greater than the height of the lower boss (23).

7. A measuring tool for measuring perpendicularity according to claim 1, characterized in that: The measuring rod (3) has a mounting hole (31) at the lower end for mounting a dial indicator (4), an opening groove (32) at the lower end of the mounting hole (31), and a threaded hole B (33) for mounting a fastening bolt on one side of the mounting hole (31).

Images