Fixed-height raceway diameter measuring device

Abstract

A fixed-height raceway diameter measuring device comprises a measuring table used for placing a bearing to be measured, a supporting rod is fixed on the measuring table, a measuring assembly is fixed on the supporting rod, and the measuring assembly comprises a measuring head connecting rod and two measuring heads which are arranged on the measuring head connecting rod in a sliding mode and located on the two sides of the supporting rod respectively. The measuring head abuts against a raceway surface measuring meter, the measuring assembly further comprises a height adjusting piece fixedly connected to the supporting rod, and the height adjusting piece is used for adjusting the height of the measuring head connecting rod on the supporting rod. The beneficial effects of the utility model are that the measuring head connecting rod can be adjusted at different heights, and accurate measurement of a plurality of cross sections of a bearing raceway surface can be realized. The flexibility and adaptability of the device enable the device to be suitable for bearings of various sizes and types, meanwhile, the operation process is simplified, personal errors are reduced, and a reliable and effective rolling surface measuring tool is provided for a production field.

Description

Technical Field

[0001] The utility model relates to a measuring device, in particular to a fixed-height rolling track diameter measuring device. Background Art

[0002] The raceway is a critical component of bearings, and its dimensional accuracy directly impacts bearing performance. Due to their high precision, the raceway dimensions of tapered and spherical roller bearings were initially measured and calculated using gauge blocks and stacked standard balls. With advancements in technology, measurement has gradually been implemented using three-dimensional coordinate measurement at the production end.

[0003] However, in actual production sites, the above measurement methods are complex to operate, have limited practical applications, and are not intuitive enough. In addition, they may affect precision instruments, making it inappropriate to place such measurement equipment on the production site. Conventional gauges typically measure one or two sections on the production site. This means selecting one or two sections of the bearing raceway and then rotating the raceway surface for measurement. However, these measurement methods have certain limitations in controlling size and shape, and the height, position, and direction cannot be directly quantitatively adjusted, making them inadequate for verification analysis on the production site. Furthermore, if the rolling surface experiences significant changes in axial diameter, measuring only one or two sections is meaningless and only adds ineffective steps on the production site. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a fixed-height raceway diameter measuring device which is convenient for measuring the raceway diameter of a bearing with a large variation.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a fixed-height raceway diameter measuring device, comprising a measuring platform for placing the bearing to be measured, a support rod fixed on the measuring platform, a measuring assembly fixed on the support rod, the measuring assembly comprising a probe connecting rod and two probes slidably arranged on the probe connecting rod and located on both sides of the support rod, a raceway surface measuring table resting on the probe, the measuring assembly also comprising a height adjustment member fixedly connected to the support rod, the height adjustment member being used to adjust the height of the probe connecting rod on the support rod.

[0006] The beneficial effects of this utility model are: the above-mentioned solution enables the probe connecting rod to be adjusted at different heights, enabling precise measurement of multiple sections of the bearing raceway surface. Its flexibility and adaptability allow the device to be applied to bearings of various sizes and types. It also simplifies the operation process and reduces human error, providing a reliable and effective rolling surface measurement tool for production sites. Furthermore, the device's stability and durability ensure the consistency and reliability of measurement data, helping to promptly identify potential bearing problems and improving the efficiency and accuracy of bearing manufacturing and quality control.

[0007] Furthermore, a height measuring assembly is also provided on the support rod, and the height measuring assembly includes a header fixing part fixed on the support rod, a height measuring gauge fixed on the header fixing part, and a header adjusting part for adjusting the height of the header fixing part on the support rod. The height measuring gauge rests on the probe connecting rod to measure the distance between the header fixing part and the probe connecting rod.

[0008] This fixed-height raceway diameter measurement device integrates a height measurement component on the support rod, providing an intuitive height adjustment feedback mechanism. Through the contact between the height gauge and the probe connecting rod, the operator can precisely control and monitor the distance between the gauge fixture and the probe connecting rod in real time, ensuring accurate and controllable height adjustment. This design not only improves the accuracy of the measurement process but also makes it easier for the operator to understand the specific value of each adjustment, thereby optimizing the accuracy and repeatability of the measurement results. Furthermore, this integrated height measurement function simplifies the measurement process, reduces the need for additional measuring tools, improves work efficiency, and enhances the simplicity of the entire measurement system.

[0009] Furthermore, the probe is fixed on a sliding member and the sliding member is used to realize the sliding of the probe on the probe connecting rod. A positioning bolt is screwed on the sliding member, and the positioning bolt abuts against the surface of the probe connecting rod to fix the position of the probe.

[0010] The probe is fixed to the slide and secured in place using set screws that rest against the surface of the probe rod. This structure not only ensures stable sliding of the probe on the rod, but also precisely secures its position through the set screws, thereby improving measurement accuracy and repeatability. Furthermore, this design facilitates quick adjustment and repeatable positioning, making the measurement process more efficient. This allows the operator to easily adjust the probe to the desired position, ensuring consistent and reliable measurements every time.

[0011] Furthermore, the measuring head can measure the rolling surface at both ends along the radial direction of the bearing to be measured.

[0012] This design enables the probe to measure at both radial ends of the bearing being tested, meaning it can inspect both the outer and inner raceway surfaces, providing comprehensive diameter data collection capabilities. This layout ensures comprehensive diameter measurement of both the inner and outer raceways of the bearing, helping to verify bearing uniformity and symmetry. This dual-end measurement capability enhances the device's applicability to bearings of varying types and sizes, while also improving the accuracy and reliability of measurement results.

[0013] Furthermore, the measuring platform includes four fixed edges in which bearing positioning members are slidably arranged. The fixed edges are arranged in a cross distribution after being spliced. A stop plate is provided on the positioning member, and the stop plate contacts the non-raceway surface of the bearing to be measured.

[0014] This design provides a stable bearing positioning platform through a cross-shaped fixed edge and a sliding bearing locator. The backstop contacts the non-raceway surface of the bearing to be measured, ensuring the precise positioning and stability of the bearing during the measurement process without affecting the measurement of the raceway surface. This layout not only improves the accuracy of the measurement, but also reduces errors caused by bearing movement or rotation. In addition, the cross-shaped design makes the measuring table suitable for bearings of various sizes and shapes, enhancing the versatility and flexibility of the device. The backstop design also helps protect the non-raceway surface of the bearing from damage during the measurement process, which is critical to maintaining the integrity of the bearing and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an axonometric view of the working state of the embodiment of the utility model;

[0016] Figure 2 This is an axonometric diagram of an embodiment of the present utility model;

[0017] Figure 3 This is a partial enlarged view of the positioning member of an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The utility model embodiment of a fixed height roller diameter measuring device is as follows Figure 1-3 As shown: It includes a measuring table 1, which is composed of four fixed edges 11 and the four fixed edges 11 are arranged in a cross shape after being spliced. A bearing positioning member 12 is slidably provided on each fixed edge 11, and a stop plate 121 is provided on each bearing positioning member 12 to contact the non-raceway surface of the bearing to be measured. Naturally, the bearing positioning member 12 can be positioned and fixed by means of bolts pressed against the bottom of the fixed edge 11. As a preferred method, scale marks (not shown in the figure) can be engraved on each of the four fixed edges 11, so that after the bearing to be measured is fixed at the production site, it is easy to find out whether the center of the bearing to be measured coincides with the center of the support rod 2 in time. A support rod 2 is fixed at the center of the four fixed edges 11, and on the support rod 2 from bottom to top are a measuring component 3 and a height measuring component 4.

[0019] Specifically, from bottom to top, the measuring assembly 3 includes a height adjustment member 35, which is a nut. A probe connecting rod 31 rests against the height adjustment member 35 and is driven by the height adjustment member 35 to move up and down along the support rod 2. Two sliding members 33 are slidably mounted on the probe connecting rod 31, one on either side of the support rod 2. A positioning bolt 331 is threaded onto the end face of the sliding member 33, which is aligned with the support rod 2. This positioning bolt secures the sliding member 33 to the probe connecting rod 31. A probe 32 is secured to the other cross-section of the sliding member 33, which is aligned with the support rod 2. The measuring assembly also includes a raceway surface measuring gauge 34, which rests against the sliding member 33 to measure raceway surface data as the bearing to be measured rotates.

[0020] The height measuring component 4 is composed of a gauge adjustment part 43 which is a nut on the support rod 2 from bottom to top, a gauge fixing part 41 which is driven by the gauge adjustment part 43 to move up and down along the support rod 2, and a height measuring gauge 42 fixed on the gauge fixing part 41, one end of which is used for measurement and rests on the end face of the probe connecting rod along the direction of the support rod 2.

[0021] This embodiment is described using a double-row bearing as the bearing to be tested: the bearing to be tested is placed on the measuring table 1 and fixed by four bearing positioning members 12. At this time, the scale mark on the fixed edge 11 (not shown in the figure) can be used to determine whether the center of the bearing to be tested coincides with the center of the support rod 2; then the height of the probe connecting rod 31 and the head fixing member 41 on the support rod 2 is adjusted, and the height measuring gauge 42 is reset to zero for subsequent height adjustment; finally, the probes 32 at both ends are placed against the raceway surface for measurement. When the height needs to be adjusted, it is achieved by rotating the height adjustment member 35 respectively, and the specific value of the adjusted height is determined by the reading of the height measuring gauge 42, and then the position of the probe 32 is adjusted.

[0022] The above embodiment is only one preferred embodiment of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A device for measuring the diameter of a fixed-height raceway, comprising a measuring table for placing a bearing to be measured, characterized in that: A support rod is fixed on the measuring table, and a measuring assembly is fixed on the support rod. The measuring assembly includes a probe connecting rod and two probes slidably arranged on the probe connecting rod and located on both sides of the support rod. A raceway surface measuring table rests on the probes. The measuring assembly also includes a height adjustment member fixedly connected to the support rod, and the height adjustment member is used to adjust the height of the probe connecting rod on the support rod.

2. The device for measuring the diameter of a fixed-height raceway according to claim 1, characterized in that: A height measuring assembly is also provided on the support rod, and the height measuring assembly includes a header fixing part fixed on the support rod, a height measuring gauge fixed on the header fixing part, and a header adjusting part for adjusting the height of the header fixing part on the support rod. The height measuring gauge rests on the probe connecting rod to measure the distance between the header fixing part and the probe connecting rod.

3. The device for measuring the diameter of a fixed-height raceway according to claim 1, characterized in that: The probe is fixed on a sliding member and the sliding member is used to realize the sliding of the probe on the probe connecting rod. A positioning bolt is screwed on the sliding member, and the positioning bolt abuts against the surface of the probe connecting rod to realize the fixation of the probe position.

4. The device for measuring the diameter of a fixed-height raceway according to claim 3, characterized in that: The measuring head can measure the rolling surface at both ends along the radial direction of the bearing to be measured.

5. The device for measuring the diameter of a fixed-height raceway according to claim 1, characterized in that: The measuring platform includes four fixed edges in which bearing positioning members are slidably arranged. The fixed edges are arranged in a cross shape after being spliced. A stop plate is provided on the positioning member, and the stop plate contacts the non-raceway surface of the bearing to be measured.

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