Belt pulley groove run-out detection device
By designing a pulley groove runout detection device, and utilizing a shaft-connected bearing and spindle structure, the pulley under test can rotate freely, solving the problem of inconvenient operation and achieving efficient pulley groove runout detection.
Patent Information
- Application Number
- CN202423178381.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing methods for detecting pulley groove runout are inconvenient to operate, resulting in low detection efficiency.
A pulley groove runout detection device was designed, which utilizes a shaft-connected bearing and spindle structure to allow the pulley under test to rotate freely around the rotation center, and is used in conjunction with a dial indicator for detection.
This improves the efficiency of pulley groove runout detection, ensures the coaxiality of the mandrel and the outer ring, and achieves efficient detection of pulley groove runout.
Smart Images
Figure CN223769391U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of belt pulley detection technology, specifically a belt pulley groove runout detection device. Background Technology
[0002] Pulley grooves come in two types: PK grooves and V grooves. Both the pulley groove and the rotation center have runout tolerance requirements. Currently, pulley groove runout testing typically uses a mandrel + V-block + clamping device + dial indicator. This method is inconvenient due to the rotating pulley, reducing testing efficiency. This invention provides a pulley groove runout testing device that mounts the pulley to be tested onto the device. During the runout testing process, the pulley can rotate freely around the rotation center. Combined with a dial indicator, pulley groove runout testing can be achieved, effectively improving testing efficiency. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a pulley groove runout detection device, which has the advantages of allowing the pulley to rotate freely around the rotation center and enabling pulley groove runout detection when used with a dial indicator. This solves the problems of inconvenient operation and low detection efficiency when rotating the pulley in runout detection.
[0004] This utility model discloses a pulley groove runout detection device, comprising a support, a shaft-connecting bearing, a pulley to be tested, a pressure plate, bolts, and a dial indicator. The support is provided with a bearing hole, a positioning support surface, and a bolt through hole. The shaft-connecting bearing is a two-column, one-ball structure, comprising an outer ring, a retainer, rolling elements, a sealing ring, grease, and a spindle. The shaft-connecting bearing is installed in the bearing hole of the support. The spindle of the shaft-connecting bearing is provided with a positioning step for the pulley to be tested and a threaded hole. The pulley to be tested is installed on the positioning step of the spindle. The bolt passes through the pressure plate and the positioning hole of the pulley to be tested, and is locked onto the spindle. The pulley to be tested can rotate with the spindle. With the help of a dial indicator, the pulley groove runout can be detected. The pulley to be tested can be installed on the groove runout detection device. During the groove runout detection process, the pulley can rotate freely around the rotation center. With the help of a dial indicator, the pulley groove runout can be detected, effectively improving the detection efficiency.
[0005] This utility model discloses a pulley groove runout detection device, wherein the mandrel is provided with a positioning step for the pulley under test, the mandrel is provided with a threaded hole, and the pressure plate is provided with a bolt through hole.
[0006] This utility model discloses a pulley groove runout detection device, wherein the two columns of the shaft connecting bearing refer to two rows of cylindrical roller bearings, and the one ball structure of the shaft connecting bearing refers to a row of four-point contact ball bearings.
[0007] This utility model discloses a pulley groove runout detection device, wherein the outer ring of the shaft-connecting bearing is interference-fitted with the support, and the bearing is preferably in a zero-backlash state after the fit. The shaft-connecting bearing itself has high precision, and the coaxiality between the spindle and the outer ring can be effectively guaranteed when the spindle rotates.
[0008] This utility model discloses a pulley groove runout detection device, wherein the pulley under test can be a PK pulley, a V-belt pulley, or a pulley that simultaneously includes a PK groove and a V-groove.
[0009] This utility model discloses a pulley groove runout detection device, wherein the pulley under test is installed on the mandrel positioning step, and the bolt passes through the pressure plate and the positioning hole of the pulley under test and is locked on the mandrel. During the test, the pulley under test can rotate freely with the mandrel.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] 1. This utility model installs a shaft-connected bearing inside the bearing hole of a support. The spindle of the shaft-connected bearing is provided with a positioning step and a threaded hole for the pulley to be tested. The pulley to be tested is installed on the positioning step of the spindle. Bolts pass through the pressure plate and the positioning hole of the pulley to be tested and are locked on the spindle. The pulley to be tested can rotate with the spindle. With the help of a dial indicator, the pulley groove runout can be detected. The pulley groove runout detection device can install the pulley to be tested on the groove runout detection device. During the groove runout detection process, the pulley can rotate freely around the rotation center. With the help of a dial indicator, the pulley groove runout can be detected, which effectively improves the detection efficiency.
[0012] 2. The shaft-connected bearing of this utility model has high precision. When the spindle rotates, the coaxiality between the spindle and the outer ring can be effectively guaranteed. At the same time, during testing, the pulley under test can rotate freely with the spindle. Attached Figure Description
[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0014] Figure 1 This is a three-dimensional schematic diagram of the pulley groove runout detection device of this utility model;
[0015] Figure 2 This is a front view of the pulley groove runout detection device of this utility model;
[0016] Figure 3 This is a cross-sectional view of the pulley groove runout detection device of this utility model;
[0017] Figure 4 This is a perspective view of the shaft-connected bearing of this utility model.
[0018] In the diagram: 1. Support; 2. Shaft bearing; 2-1. Mandrel; 2-2. Outer ring; 3. Pulley to be tested; 4. Pressure plate; 5. Bolt. Detailed Implementation
[0019] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.
[0020] Please see Figure 1-4 This utility model discloses a pulley groove runout detection device, comprising a support 1, a shaft bearing 2, a pulley 3 to be tested, a pressure plate 4, bolts 5, and a dial indicator. The support 1 is provided with a bearing hole, a positioning support surface, and a through hole for the bolt 5. The shaft bearing 2 is a two-column, one-ball structure, comprising an outer ring 2-2, a retainer, rolling elements, a sealing ring, grease, and a spindle 2-1. The shaft bearing 2 is installed in the bearing hole of the support. The spindle 2-1 of the shaft bearing 2 is provided with a positioning step and a threaded hole for the pulley 3 to be tested. 3 is installed on the positioning step of the mandrel 2-1. Bolt 5 passes through the positioning holes of the pressure plate 4 and the pulley 3 to be tested and is locked on the mandrel 2-1. The pulley 3 to be tested can rotate with the mandrel 2-1. The pulley groove runout is detected by using a dial indicator (since the dial indicator is a commonly used measuring tool, it will not be described separately in this utility model). The pulley groove runout detection device can install the pulley to be tested on the groove runout detection device. During the groove runout detection process, the pulley can rotate freely around the rotation center. The pulley groove runout can be detected by using a dial indicator, which effectively improves the detection efficiency.
[0021] The mandrel 2-1 is provided with a positioning step for the pulley 3 to be tested, and the mandrel 2-1 is provided with a threaded hole. The pressure plate 4 is provided with a through hole for the bolt 5.
[0022] Shaft-connecting bearing 2 with two columns refers to two rows of cylindrical roller bearings, while shaft-connecting bearing 2 with one ball structure refers to one row of four-point contact ball bearings.
[0023] The outer ring 2-2 of the shaft-connecting bearing 2 is interference-fitted with the support 1. After the fit, the bearing is preferably in a zero clearance state. The shaft-connecting bearing 2 itself has high precision, and when the spindle 2-1 rotates, the coaxiality of the spindle 2-1 and the outer ring 2-2 can be effectively guaranteed.
[0024] The pulley 3 under test can be a PK pulley, a V-belt pulley, or a pulley that includes both PK grooves and V grooves.
[0025] The pulley 3 under test is installed on the positioning step of the spindle 2-1. The bolt 5 passes through the pressure plate 4 and the positioning hole of the pulley 3 under test and is locked on the spindle 2-1. During the test, the pulley 3 under test can rotate freely with the spindle 2-1.
[0026] When using this utility model: the shaft bearing 2 is installed in the bearing hole of the support. The spindle 2-1 of the shaft bearing 2 is provided with a positioning step and threaded hole for the pulley 3 to be tested. The pulley 3 to be tested is installed on the positioning step of the spindle 2-1. The bolt 5 passes through the pressure plate 4 and the positioning hole of the pulley 3 to be tested and is locked on the spindle 2-1. The pulley 3 to be tested can rotate with the spindle 2-1. The pulley groove runout is detected with a dial indicator (since the dial indicator is a commonly used measuring tool, the dial indicator will not be described separately in this utility model). The pulley groove runout detection device can install the pulley to be tested on the groove runout detection device. During the groove runout detection process, the pulley can rotate freely around the rotation center. The pulley groove runout can be detected with a dial indicator, which effectively improves the detection efficiency.
[0027] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A pulley groove runout detection device, comprising a support (1), a shaft coupling bearing (2), a measured pulley (3), a pressing plate (4), a bolt (5) and a dial indicator, characterized in that: The support (1) is provided with a bearing hole, a positioning support surface and a bolt (5) through hole, the shaft connecting bearing (2) is a two-column and one-ball structure, the shaft connecting bearing (2) comprises an outer ring (2-2), a retainer, a rolling body, a sealing ring, grease and a mandrel (2-1).
2. A pulley groove runout detection device according to claim 1, characterized in that: The mandrel (2-1) is provided with a measured pulley (3) positioning step, the mandrel (2-1) is provided with a threaded hole, and the pressing plate (4) is provided with a bolt (5) through hole.
3. A pulley groove runout detection device as set forth in claim 1, characterized by: The two columns of the shaft connecting bearing (2) refer to two rows of cylindrical roller bearings, and the one-ball structure of the shaft connecting bearing (2) refers to one row of four-point contact ball bearings.
4. A pulley groove runout detection device as set forth in claim 1, characterized by: The outer ring (2-2) of the shaft connecting bearing (2) is in interference fit with the support (1).
5. A pulley groove runout detection device as set forth in claim 1, characterized by: The measured pulley (3) can be a PK pulley or a V pulley.
6. A pulley groove runout detection device as set forth in claim 1, characterized by: The measured pulley (3) is installed on the positioning step of the mandrel (2-1), the bolt (5) passes through the positioning hole of the pressing plate (4) and the measured pulley (3), and is locked on the mandrel (2-1).