Bearing inner diameter detection device

Abstract

The utility model discloses a bearing inner diameter detection device, which belongs to the technical field of bearing inner diameter detection and comprises a base, and a pneumatic gauge is mounted at the top of one side of the base. According to the utility model, when the inner diameter of the bearing is detected, the bearing is sleeved on the detection head close to the pneumatic measuring instrument, the pneumatic measuring instrument is started, airflow flows through the air pipe, the metal pipe, the communication groove and the mounting groove and then is sprayed out from the air hole of the detection head, and the inner diameter of the bearing is detected through the pneumatic measuring instrument; according to the bearing inner diameter detection device, the rotating shaft and the support are controlled to rotate through the electric mechanism, the detection head matched with the size of the bearing to be detected is rotated to the pneumatic measuring instrument, and the air outlet hole of the metal pipe is communicated with the corresponding detection head. And therefore, the inner diameters of the bearings with different specifications can be directly detected, and the practicability of the bearing inner diameter detection device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing inner diameter detection, in particular to a bearing inner diameter detection device. Background Art

[0002] Bearings are an important component in mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. After the bearings are produced, a bearing inner diameter detection device is needed to check the bearing inner diameter.

[0003] Current bearing inner diameter detection devices, such as the one proposed in announcement number: CN219914271U, can accurately and quickly measure the inner diameters of the large and small rings of the bearing by converting the analog quantity of the gas flow of the pneumatic measuring instrument into a numerical value, and displaying it on the pneumatic measuring instrument. At the same time, the homemade probe can be easily replaced and can be applied to the measurement of the inner diameters of most miniature bearings.

[0004] The existing bearing inner diameter detection device detects the bearing inner diameter through a pneumatic measuring instrument. Although the probe can be easily replaced and can be suitable for measuring the inner diameters of most miniature bearings, when detecting the inner diameters of bearings of different sizes, the probe needs to be replaced first before checking bearings of different sizes, which is time-consuming and laborious. Therefore, we propose a bearing inner diameter detection device to solve the problem raised. Utility Model Content

[0005] The purpose of the utility model is to provide a bearing inner diameter detection device, which can convert the detection head according to the bearing size, and then directly detect the inner diameters of bearings of different specifications, thereby effectively improving the practicability of the bearing inner diameter detection device.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a bearing inner diameter detection device, comprising a base, a pneumatic measuring instrument is installed on the top of one side of the base, and a rotating shaft is rotatably connected to the top of the other side of the base, wherein:

[0007] The top of the rotating shaft is fixedly connected with a support, and a detection head is equidistantly installed at the top of the support close to the ring side. The support is provided with a mounting groove at the top corresponding to the detection head, and the detection head is threadedly connected to the mounting groove through the mounting head. A pipe groove is provided in the middle of the rotating shaft, and the mounting groove is connected to the pipe groove through a connecting groove;

[0008] A metal tube is arranged in the tube groove, and an air outlet is opened on one side of the metal tube near the top. The bottom of the base corresponding to the rotating shaft is fixedly connected with a base frame, and the bottom end of the metal tube passes through the interior of the rotating shaft and is fixedly connected with the base frame. The pneumatic measuring instrument is connected to the metal tube through an air pipe, and the support is rotated by an electric mechanism.

[0009] Preferably, at least four detection heads are provided, and the detection heads correspond to the installation slots one by one, and the outer diameters of the detection heads are different.

[0010] Preferably, the mounting head is sealed and connected to the mounting groove via a first sealing ring, and the ring side of the metal tube close to the air outlet is sealed and connected to the tube groove via a second sealing ring.

[0011] Preferably, the electric mechanism includes a first reversing gear, the first reversing gear is fixedly connected to the outer side of the rotating shaft near the top of the base, a motor is installed on the base near the top of the rotating shaft, and a second reversing gear is installed on the shaft end of the motor near the first reversing gear.

[0012] Preferably, the first reversing gear and the second reversing gear are perpendicular to each other, and the first reversing gear is meshed with the second reversing gear.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. In the utility model, when the inner diameter of the bearing is detected, the air outlet of the metal tube is connected with the connecting groove near the pneumatic measuring instrument, the bearing is put on the detection head near the pneumatic measuring instrument, the pneumatic measuring instrument is started, and the air flow flows through the air pipe, the metal tube, the connecting groove and the inside of the installation groove and then sprays out from the air hole of the detection head. The inner diameter of the bearing is detected by the pneumatic measuring instrument. When the bearings of different specifications are detected, the rotation of the rotating shaft and the support is controlled by the electric mechanism, and the detection head matching the size of the bearing to be detected is rotated to the pneumatic measuring instrument, so that the air outlet of the metal tube is connected with the corresponding detection head. Through the bearing inner diameter detection device, the detection head can be converted according to the bearing size, and then the inner diameters of bearings of different specifications can be directly detected, which effectively improves the practicality of the bearing inner diameter detection device.

[0015] 2. In the utility model, after the detection head is installed through the installation head and the installation groove, the outer wall above the installation head contacts the inner wall of the installation groove through the first sealing ring, and when the metal tube is aligned with the connecting groove through the air outlet, the connection between the air outlet and the connecting groove is sealed by the second sealing ring. The sealing structure is set to seal the airflow passage to avoid overflow of the airflow during flow, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0018] Figure 3 For this utility model Figure 1 Schematic diagram of the local enlarged structure at point B in the middle.

[0019] In the figure: 1. base; 2. pneumatic measuring instrument; 3. rotating shaft; 4. support; 5. detection head; 6. mounting groove; 7. mounting head; 8. first sealing ring; 9. pipe groove; 10. connecting groove; 11. metal pipe; 12. air outlet; 13. second sealing ring; 14. base frame; 15. air pipe; 16. first reversing gear; 17. motor; 18. second reversing gear. DETAILED DESCRIPTION

[0020] 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 in 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.

[0021] Example:

[0022] See also Figures 1 to 3 The utility model provides a technical solution: a bearing inner diameter detection device, including a base 1, a pneumatic measuring instrument 2 is installed on the top of one side of the base 1, and a rotating shaft 3 is rotatably connected to the top of the other side of the base 1, wherein:

[0023] The top of the rotating shaft 3 is fixedly connected with a support 4, and a detection head 5 is equidistantly installed at the top of the support 4 close to the ring side. A mounting groove 6 is opened at the top of the support 4 corresponding to the detection head 5, and the detection head 5 is threadedly connected to the mounting groove 6 through the mounting head 7. A pipe groove 9 is opened in the middle of the rotating shaft 3, and the mounting groove 6 is connected to the pipe groove 9 through a connecting groove 10;

[0024] A metal tube 11 is arranged in the tube groove 9, and an air outlet 12 is opened on one side of the metal tube 11 near the top. The base 1 is fixedly connected to a bottom frame 14 corresponding to the bottom of the rotating shaft 3. The bottom end of the metal tube 11 passes through the interior of the rotating shaft 3 and is fixedly connected to the bottom frame 14. The pneumatic measuring instrument 2 is connected to the metal tube 11 through an air pipe 15, and the support 4 is driven to rotate by an electric mechanism.

[0025] When detecting the inner diameter of the bearing, the air outlet 12 of the metal tube 11 is connected with the connecting groove 10 near the pneumatic measuring instrument 2, the bearing is sleeved on the detection head 5 near the pneumatic measuring instrument 2, the pneumatic measuring instrument 2 is started, and the air flow flows through the air pipe 15, the metal tube 11, the connecting groove 10 and the interior of the mounting groove 6 and then ejected from the air hole of the detection head 5, and the inner diameter of the bearing is detected by the pneumatic measuring instrument 2. When detecting bearings of different specifications, the rotation of the rotating shaft 3 and the support 4 is controlled by the electric mechanism, and the detection head 5 matching the size of the bearing to be detected is rotated to the pneumatic measuring instrument 2, so that the air outlet 12 of the metal tube 11 is connected with the corresponding detection head 5. Through the bearing inner diameter detection device, the detection head 5 can be converted according to the bearing size, and then the inner diameters of bearings of different specifications can be directly detected, which effectively improves the practicality of the bearing inner diameter detection device.

[0026] See also Figures 1 to 3 At least four detection heads 5 are provided, and the detection heads 5 correspond to the mounting grooves 6 one by one, and the outer diameters of the detection heads 5 are different. The mounting head 7 is sealed and connected to the mounting groove 6 through the first sealing ring 8, and the ring side of the metal tube 11 close to the air outlet 12 is sealed and connected to the tube groove 9 through the second sealing ring 13. After the detection head 5 is installed with the mounting groove 6 through the mounting head 7, the outer wall above the mounting head 7 contacts the inner wall of the mounting groove 6 through the first sealing ring 8, and when the metal tube 11 is aligned with the connecting groove 10 through the air outlet 12, the connection between the air outlet 12 and the connecting groove 10 is sealed through the second sealing ring 13. Through the provided sealing structure, the airflow passage can be sealed to avoid overflow of the airflow during flow, thereby improving the detection accuracy.

[0027] See also Figures 1 to 3 The electric mechanism includes a first reversing gear 16, and the first reversing gear 16 is fixedly connected to the outer side of the rotating shaft 3 near the top of the base 1. A motor 17 is installed on the top of the base 1 near the rotating shaft 3, and a second reversing gear 18 is installed on the shaft end of the motor 17 near the first reversing gear 16. The first reversing gear 16 and the second reversing gear 18 are perpendicular to each other, and the first reversing gear 16 is meshed with the second reversing gear 18. When the motor 17 is working, it drives the second reversing gear 18 to rotate. The second reversing gear 18 is meshed with the first reversing gear 16, so that the motor 17 can drive the rotating shaft 3 to rotate, and then drive the support 4 to rotate.

[0028] Working principle: This kind of bearing inner diameter detection device, when detecting the inner diameter of the bearing, the air outlet 12 of the metal tube 11 is connected with the connecting groove 10 near the pneumatic measuring instrument 2, the bearing is sleeved on the detection head 5 near the pneumatic measuring instrument 2, the pneumatic measuring instrument 2 is started, the air flow flows through the air pipe 15, the metal tube 11, the connecting groove 10 and the installation groove 6, and then sprays out from the air hole of the detection head 5, the inner diameter of the bearing is detected by the pneumatic measuring instrument 2, when the bearings of different specifications are detected, the rotation of the rotating shaft 3 and the support 4 is controlled by the electric mechanism, and the detection head 5 matching the size of the bearing to be detected is rotated to the pneumatic measuring instrument 2, so that the air outlet 12 of the metal tube 11 is aligned with the corresponding detection head 5. The detection head 5 is connected with the connecting groove 10 through the air outlet 12, and the connection between the air outlet 12 and the connecting groove 10 is sealed by the second sealing ring 13. The sealing structure can be used to seal the air flow passage to avoid overflow of the air flow during flow, thereby improving the detection accuracy.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing inner diameter detection device, comprising a base (1), characterized in that: A pneumatic measuring instrument (2) is installed on the top of one side of the base (1), and a rotating shaft (3) is rotatably connected to the top of the other side of the base (1), wherein: The top of the rotating shaft (3) is fixedly connected with a support (4), and a detection head (5) is equidistantly installed on the top of the support (4) close to the ring side, and a mounting groove (6) is provided on the top of the support (4) corresponding to the detection head (5), and the detection head (5) is threadedly connected to the mounting groove (6) through a mounting head (7), and a pipe groove (9) is provided in the middle of the rotating shaft (3), and the mounting groove (6) is connected to the pipe groove (9) through a connecting groove (10); A metal tube (11) is arranged in the tube groove (9), and an air outlet (12) is opened on one side of the metal tube (11) near the top. The base (1) is fixedly connected to a bottom frame (14) corresponding to the bottom of the rotating shaft (3). The bottom end of the metal tube (11) passes through the interior of the rotating shaft (3) and is fixedly connected to the bottom frame (14). The pneumatic measuring instrument (2) is connected to the metal tube (11) via an air pipe (15), and the support (4) is driven to rotate by an electric mechanism.

2. The bearing inner diameter detection device according to claim 1, characterized in that: At least four detection heads (5) are provided, and the detection heads (5) correspond to the installation slots (6) one by one, and the outer diameters of the detection heads (5) are different.

3. The bearing inner diameter detection device according to claim 1, characterized in that: The mounting head (7) is sealedly connected to the mounting groove (6) via a first sealing ring (8), and the ring side of the metal tube (11) close to the air outlet (12) is sealedly connected to the tube groove (9) via a second sealing ring (13).

4. The bearing inner diameter detection device according to claim 1, characterized in that: The electric mechanism comprises a first reversing gear (16), the first reversing gear (16) is fixedly connected to the outer side of the rotating shaft (3) near the top of the base (1), a motor (17) is installed near the top of the rotating shaft (3) of the base (1), and a second reversing gear (18) is installed near the shaft end of the motor (17) near the first reversing gear (16).

5. The bearing inner diameter detection device according to claim 4, characterized in that: The first reversing gear (16) and the second reversing gear (18) are perpendicular to each other, and the first reversing gear (16) and the second reversing gear (18) are meshed.

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