Bearing ring-based wall thickness difference measuring instrument

Abstract

The utility model discloses a wall thickness difference measuring instrument based on a bearing ring, which comprises a base, a plate body is arranged on the base, a dial indicator and a fixing frame for fixing the dial indicator are arranged on the base, chutes are symmetrically arranged on the plate body, the chutes are obliquely arranged, a first rotating shaft penetrates through the interiors of the chutes, and a second rotating shaft penetrates through the interiors of the first rotating shaft. The bearing ring wall thickness difference measuring instrument comprises a plate body, a first rotating shaft penetrates through the plate body, a second rotating shaft penetrates through the plate body, the second rotating shaft is rotatably connected with the plate body, the second rotating shaft is located on a central vertical extension line between the two first rotating shafts, and a rotating motor is installed on the plate body. Compared with a traditional manual bearing rotating mode, power output is more stable, vibration of the bearing during measurement is smaller, measurement is more convenient, wall thickness measurement of different positions of the bearing ring is achieved through cooperation of the sliding groove and the first rotating shaft, and the wall thickness measuring device has the advantages of being easy and convenient to operate and high in measurement precision.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing measurement, in particular to a measuring instrument based on the wall thickness difference of a bearing ring. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support the mechanical rotating body, reduce the mechanical load friction coefficient of the equipment during the transmission process, and ensure its rotation accuracy. Therefore, the quality of bearings is particularly important.

[0003] The existing Chinese patent with publication number CN208704607U discloses a bearing ring wall thickness difference measuring instrument, which belongs to the field of bearing detection equipment, including a base, a plate body is arranged on the base, and the plate body is arranged in an equilateral triangle as a whole. A groove body is opened on the equilateral triangle plate body at the position where the two sides of the plate body are located, and the groove bodies on both sides are respectively arranged parallel to the two sides of the plate body. A through hole is opened on the plate body and at the position between the vertex of the plate body and the groove bodies on both sides. A first screw is rotatably connected in the through hole, and a second screw is slidably connected in the groove bodies on both sides. The first screw and the second screw are rotatably connected with a sleeve abutting the plate body, and nuts for fixing the sleeve to the plate body are arranged on both sides of the plate body on the first screw and the second screw. The probe is parallel to the plate body and is arranged at a position close to the first screw facing between the groove bodies on both sides. The three-point fixation of the first screw and the two second screws is adopted, which has a better fixing effect on the bearing ring.

[0004] However, the above patent still has some shortcomings. First, rotating the bearing ring by manual rotation will generate an inward radial pressure on the bearing ring, which is easy to shake the bearing ring and cause errors. Secondly, it is not convenient to operate. Utility Model Content

[0005] In order to solve the deficiencies mentioned in the above-mentioned background technology, the purpose of the utility model is to provide a bearing ring wall thickness difference measuring instrument, which drives the bearing ring to rotate by rotating the motor. Compared with the traditional manual rotation of the bearing, the power output is more stable, the bearing vibrates less during measurement, and the measurement is more convenient. Combined with the cooperation of the slide groove and the first rotating shaft, the wall thickness measurement of different positions of the bearing ring can be realized, which has the advantages of simple operation and high measurement accuracy.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A bearing ring wall thickness difference measuring instrument includes a base, a plate body is installed on the base, a dial indicator and a fixing frame for fixing the dial indicator are arranged on the base, a slide groove is symmetrically arranged on the plate body, the slide groove is inclined, a first rotating shaft runs through the inside of the slide groove, a second rotating shaft runs through the plate body, the second rotating shaft is rotatably connected to the plate body, the second rotating shaft is located on the vertical extension line of the center between the two first rotating shafts, a rotating motor is installed on the plate body, and the output end of the rotating motor is connected to the second rotating shaft. Start the rotating motor to make the second rotating shaft drive the bearing ring to rotate. Compared with the traditional manual bearing rotation method, the power output is more stable, the bearing vibrates less during measurement, and the measurement is more convenient.

[0008] Further preferably, a limit groove is provided on the plate body, the limit groove is connected with the slide groove, a limit block is fixedly installed on the second rotating shaft, the limit block is located in the limit groove, the first rotating shaft and the second rotating shaft are both provided with a sliding sleeve, the second rotating shaft is provided with a spline, a keyway is provided on the sliding sleeve located on the second rotating shaft, the second rotating shaft and the first rotating shaft are both threadedly connected with a nut, and the nut is used to limit the maximum axial displacement distance of the sliding sleeve on the first rotating shaft or the second rotating shaft.

[0009] Further preferably, a connecting rod is provided on the side of the plate body away from the nut, and the two ends of the connecting rod respectively penetrate the two first rotating shafts, and a spring is sleeved on the connecting rod, and the spring is located between the two first rotating shafts. After the bearing ring is sleeved on the three sliding sleeves, the two first rotating shafts are moved away from each other under the action of the restoring force of the spring until the three sliding sleeves are tightly fitted with the inner ring of the bearing ring, making the operation of placing the bearing more convenient. At the same time, when the bearing ring vibrates during the rotation process, the spring can play a buffering role to reduce the influence of the vibration on the measurement accuracy.

[0010] Further preferably, a vertical groove is formed on one side of the plate away from the nut, a slide is fixedly connected to the connecting rod, and one end of the slide is located in the vertical groove. The sliding of the slide in the vertical groove can limit the connecting rod to only vertical movement, avoid the two first rotating shafts not being in the same horizontal plane, and further improve the measurement stability.

[0011] Further preferably, the fixing frame comprises a fixing rod, the fixing rod passes through the top end of the base, and the base is threadedly connected with a fixing screw, and the fixing screw is used to fix the fixing rod to the base.

[0012] Further preferably, the fixing rod is fixedly connected with a clamping rod, the clamping rod is provided with a fixing hoop, the fixing hoop is provided with a fastening bolt, and the fastening bolt and the fixing hoop are used to install and fix the dial indicator. During the measurement process, the measuring head of the dial indicator contacts the inner surface of the bearing ring and displays the wall thickness value in real time. Since the dial indicator is fixed to the base through a fixing frame, it can maintain a stable measurement state. At the same time, by adjusting the tightness of the fixing screw and the fastening bolt, the position and fixing state of the dial indicator can be easily adjusted to adapt to bearing rings of different sizes.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model rotates the motor to make the second rotating shaft drive the bearing ring to rotate. Compared with the traditional manual bearing rotation method, the power output is more stable, the bearing vibrates less during measurement, and the measurement is more convenient. The wall thickness of the bearing ring at different positions can be measured by combining the slideway and the first rotating shaft, which has the advantages of simple operation and high measurement accuracy.

[0015] 2. Since the dial indicator of the utility model is fixed on the base through the fixing frame, it can maintain a stable measuring state. At the same time, by adjusting the tightness of the fixing screws and the fastening bolts, the position and fixing state of the dial indicator can be easily adjusted to adapt to bearing rings of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the plate body in the utility model;

[0019] Figure 3 It is a structural sectional view of the connecting rod in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the second rotating shaft in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the fixing frame in the utility model.

[0022] In the figure:

[0023] 1. Base; 2. Plate; 3. Dial indicator; 4. Slide; 5. First rotating shaft; 6. Second rotating shaft; 7. Rotating motor; 8. Limiting groove; 9. Limiting block; 10. Sliding sleeve; 11. Spline; 12. Keyway; 13. Nut; 14. Connecting rod; 15. Spring; 16. Vertical groove; 17. Sliding piece; 18. Fixing rod; 19. Fixing screw; 20. Clamping rod; 21. Fixing hoop; 22. Fastening bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] like Figure 1-4 As shown, a bearing ring wall thickness difference measuring instrument comprises a base 1, a plate body 2 is mounted on the base 1, a dial gauge 3 and a fixing frame for fixing the dial gauge 3 are arranged on the base 1, a slide groove 4 is symmetrically arranged on the plate body 2, the slide groove 4 is tilted, a first rotating shaft 5 is passed through the interior of the slide groove 4, a second rotating shaft 6 is passed through the plate body 2, the second rotating shaft 6 is rotatably connected with the plate body 2, the second rotating shaft 6 is located on the vertical extension line of the center between the two first rotating shafts 5, a rotating motor 7 is mounted on the plate body 2, and the output end of the rotating motor 7 is connected with the second rotating shaft 6. Start the rotating motor 7 to make the second rotating shaft 6 drive the bearing ring to rotate. Compared with the traditional manual bearing rotation method, the power output is more stable, the bearing vibrates less during measurement, and the measurement is more convenient.

[0027] The plate body 2 is provided with a limiting groove 8, and the limiting groove 8 is connected with the slide groove 4. A limiting block 9 is fixedly installed on the second rotating shaft 6, and the limiting block 9 is located in the limiting groove 8. The first rotating shaft 5 and the second rotating shaft 6 are both provided with a sliding sleeve 10, and the second rotating shaft 6 is provided with a spline 11. The sliding sleeve 10 located on the second rotating shaft 6 is provided with a keyway 12. The second rotating shaft 6 and the first rotating shaft 5 are both threadedly connected with a nut 13, and the nut 13 is used to limit the maximum axial displacement distance of the sliding sleeve 10 on the first rotating shaft 5 or the second rotating shaft 6.

[0028] A connecting rod 14 is provided on one side of the plate body 2 away from the nut 13, and the two ends of the connecting rod 14 respectively penetrate the two first rotating shafts 5. A spring 15 is sleeved on the connecting rod 14, and the spring 15 is located between the two first rotating shafts 5. After the bearing ring is sleeved on the three sliding sleeves 10, the two first rotating shafts 5 are moved away from each other under the restoring force of the spring 15 until the three sliding sleeves 10 are tightly fitted with the inner ring of the bearing ring, making the operation of placing the bearing more convenient. At the same time, when the bearing ring vibrates during the rotation process, the spring 15 can play a buffering role to reduce the influence of the vibration on the measurement accuracy.

[0029] A vertical groove 16 is formed on one side of the plate body 2 away from the nut 13, and a slide 17 is fixedly connected to the connecting rod 14, and one end of the slide 17 is located in the vertical groove 16. The sliding of the slide 17 in the vertical groove 16 can limit the connecting rod 14 to only vertical movement, thereby preventing the two first rotating shafts 5 from being in a different horizontal plane, and further improving the measurement stability.

[0030] The fixing frame includes a fixing rod 18 , and the fixing rod 18 passes through the top of the base 1 . A fixing screw 19 is threadedly connected to the base 1 , and the fixing screw 19 is used to fix the fixing rod 18 on the base 1 .

[0031] The fixing rod 18 is fixedly connected with a clamping rod 20, and the clamping rod 20 is provided with a fixing hoop 21, and the fixing hoop 21 is provided with a fastening bolt 22. The fastening bolt 22 and the fixing hoop 21 are used to install and fix the dial gauge 3. During the measurement process, the measuring head of the dial gauge 3 contacts the inner surface of the bearing ring, and the wall thickness value is displayed in real time. Since the dial gauge 3 is fixed to the base 1 through a fixing frame, it can maintain a stable measurement state. At the same time, by adjusting the tightness of the fixing screw 19 and the fastening bolt 22, the position and fixing state of the dial gauge 3 can be easily adjusted to adapt to bearing rings of different sizes.

[0032] Working principle:

[0033] When using the device, first move the connecting rod 14 upward, then put the bearing ring on the three sliding sleeves 10, loosen the connecting rod 14, and the two first rotating shafts 5 move away from each other under the restoring force of the spring 15 until the three sliding sleeves 10 are tightly fitted with the inner ring of the bearing ring, making the operation of placing the bearing more convenient. At the same time, when the bearing ring vibrates during the rotation process, the spring 15 can play a buffering role to reduce the influence of vibration on the measurement accuracy. Since the dial indicator 3 is fixed on the base 1 through the fixing frame, it can maintain a stable measurement state. Then, by adjusting the tightness of the fixing screw 19 and the fastening bolt 22, the position and fixed state of the dial indicator 3 can be easily adjusted to adapt to bearing rings of different sizes. Then start the rotating motor 7 to make the second rotating shaft 6 drive the bearing ring to rotate. Compared with the traditional manual rotation bearing method, the power output is more stable, the bearing vibrates less during measurement, and the measurement is more convenient. By observing the swing amplitude of the upper pointer, it can be known whether the wall thickness of the bearing ring meets the standard.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A bearing ring wall thickness difference measuring instrument, characterized in that: The invention comprises a base (1), a plate body (2) is mounted on the base (1), a dial indicator (3) and a fixing frame for fixing the dial indicator (3) are arranged on the base (1), a slide groove (4) is symmetrically arranged on the plate body (2), the slide groove (4) is inclined, a first rotating shaft (5) is passed through the interior of the slide groove (4), a second rotating shaft (6) is passed through the plate body (2), the second rotating shaft (6) is rotatably connected to the plate body (2), the second rotating shaft (6) is located on the center vertical extension line between the two first rotating shafts (5), a rotating motor (7) is mounted on the plate body (2), and the output end of the rotating motor (7) is connected to the second rotating shaft (6).

2. The bearing ring wall thickness difference measuring instrument according to claim 1 is characterized in that: The plate body (2) is provided with a limit groove (8), the limit groove (8) is connected with the slide groove (4), the second rotating shaft (6) is fixedly installed with a limit block (9), the limit block (9) is located in the limit groove (8), the first rotating shaft (5) and the second rotating shaft (6) are both provided with a sliding sleeve (10), the second rotating shaft (6) is provided with a spline (11), the sliding sleeve (10) located on the second rotating shaft (6) is provided with a keyway (12), the second rotating shaft (6) and the first rotating shaft (5) are both threadedly connected with a nut (13), the nut (13) is used to limit the maximum axial displacement distance of the sliding sleeve (10) on the first rotating shaft (5) or the second rotating shaft (6).

3. The bearing ring wall thickness difference measuring instrument according to claim 2 is characterized in that: A connecting rod (14) is provided on the side of the plate body (2) away from the nut (13), and the two ends of the connecting rod (14) respectively pass through the two first rotating shafts (5). A spring (15) is sleeved on the connecting rod (14), and the spring (15) is located between the two first rotating shafts (5).

4. The bearing ring wall thickness difference measuring instrument according to claim 3 is characterized in that: A vertical groove (16) is provided on one side of the plate body (2) away from the nut (13); a sliding plate (17) is fixedly connected to the connecting rod (14); and one end of the sliding plate (17) is located in the vertical groove (16).

5. The bearing ring wall thickness difference measuring instrument according to claim 1 is characterized in that: The fixing frame comprises a fixing rod (18), the fixing rod (18) passes through the top end of the base (1), and a fixing screw (19) is threadedly connected to the base (1), and the fixing screw (19) is used to fix the fixing rod (18) on the base (1).

6. The bearing ring wall thickness difference measuring instrument according to claim 5 is characterized in that: The fixing rod (18) is fixedly connected to a clamping rod (20), the clamping rod (20) is provided with a fixing hoop (21), the fixing hoop (21) is provided with a fastening bolt (22), and the fastening bolt (22) and the fixing hoop (21) are used to install and fix the dial indicator (3) in cooperation.

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