Turbocharger bearing axial clearance measuring instrument

Abstract

The utility model discloses a turbocharger bearing axial clearance measuring instrument, relates to the technical field of bearing measurement, and solves the problems that the detection range of a detection device needs to be adjusted according to different diameters of two groups of inner rings of a bearing during detection, the detection range of the detection device in the patent is relatively single, and the detection efficiency is high. And the detection requirements of bearings with different models and different diameters cannot be met. A turbocharger bearing axial clearance measuring instrument comprises a base. The base is of a rectangular block structure. A manual air cylinder is fixedly arranged at the top of the rear side of the base. The bottom of the manual air cylinder is in transmission connection with a mounting ring of a circular-plate-shaped structure. Four groups of sliding blocks with rectangular block structures are arranged in the four groups of rectangular sliding grooves in the outer side of the mounting ring in a sliding manner in an annular array shape; bottom rods of rectangular rod structures are fixedly arranged at the bottoms of the outer side ends of the sliding blocks. Requirements for detecting bearings with different diameters can be met, the whole measurement process is simple and rapid to operate, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing measurement, and more specifically, it particularly relates to an axial clearance measuring instrument for a turbocharger bearing. Background Technique

[0002] The size of the axial clearance between the inner and outer rings of a bearing and the rolling elements in the middle directly affects the performance of mechanical products such as the machine vibration of the machine itself, the runout of the shaft, and the rotational flexibility. Accurately measuring the axial clearance of the bearing is one of the important means for bearing manufacturers and users to improve product quality; a turbocharger bearing is a non-standard double-row bearing composed of an outer ring and two inner rings, and the size of its axial clearance is related to the dynamic performance during the operation of the bearing, so it needs to be strictly controlled.

[0003] After retrieval, for example, the patent with the patent number CN219640918U discloses an axial clearance measuring instrument for a turbocharger bearing, which includes a controller, a displacement sensor, a pressure sensor, a pressure display screen, and a clearance display screen all connected to the controller. It also includes: a fixing device for fixing the bearing, and the displacement sensor and the pressure sensor are located at both ends of the fixing device; a detection mandrel is movably inserted on the bearing, and the bottom of the detection mandrel is movably abutted against the pressure sensor; an adjusting nut is fixed on the top of the detection mandrel and is movably abutted against the displacement sensor; a thrust device is arranged opposite to the pressure sensor and is used to press the pressure sensor against the detection mandrel; the adjusting nut is used to eliminate the internal friction error of the measured bearing according to the thrust provided by the thrust device, and the displacement sensor is used to read the clearance value of the bearing. This measuring instrument has intuitive and reliable measurement data, simple operation, good repeatability, high measurement accuracy, high measurement efficiency, and simple structure.

[0004] The detection device in the above patent currently still has the following deficiencies:

[0005] Due to the relatively special structure of the turbocharger bearing, when performing detection, it is necessary to adjust the detection range of the detection device according to the different diameters of the two groups of inner rings of the bearing. The detection range that the detection device in the above patent can detect is relatively single and cannot meet the detection needs of bearings of different models and different diameters, having certain limitations. Content of the Utility Model

[0006] In order to solve the above technical problems, the utility model provides an axial clearance measuring instrument for a turbocharger bearing to solve the problem that due to the relatively special structure of the turbocharger bearing, when performing detection, it is necessary to adjust the detection range of the detection device according to the different diameters of the two groups of inner rings of the bearing, and the detection range that the detection device in the above patent can detect is relatively single and cannot meet the detection needs of bearings of different models and different diameters.

[0007] The purpose and efficacy of the axial clearance measuring instrument for the bearings of the turbocharger of the present utility model are achieved by the following specific technical means:

[0008] The axial clearance measuring instrument for the bearings of the turbocharger includes a base; the base adopts a rectangular block structure, and a set of T-shaped chute structures are provided on both sides of the top of the base: a manual cylinder is fixedly arranged at the top rear of the base; the bottom of the manual cylinder is drivingly connected with a circular plate-shaped mounting ring, and a circular groove structure is provided at the bottom of the mounting ring, and four rectangular chute structures are arranged in a circular array around the mounting ring, and an annular groove structure is provided at the top of the mounting ring; four rectangular block-shaped sliders are slidably arranged in a circular array in the four rectangular chutes on the outside of the mounting ring, and a toothed groove structure is provided at the top of the slider; a bottom rod in the shape of a rectangular rod is fixedly arranged at the bottom of the outer end of the slider.

[0009] Further, a bidirectional lead screw is rotatably arranged in the T-shaped chute on the top of the base; a set of rectangular block-shaped pads are slidably arranged in the T-shaped chutes on both sides of the top of the base, and both sets of pads are threadedly engaged with the bidirectional lead screw; a first screw rod is fixedly arranged at the top of the pad; a rectangular block-shaped clamping block is slidably arranged on the outside of the first screw rod; a bolt is rotatably arranged on the outside of the first screw rod through threaded engagement; a cylindrical fixed rod is fixedly arranged in the middle of the top of the base.

[0010] Further, a cylindrical slide rod is fixedly arranged at the top front of the base; a second screw rod is rotatably arranged at the top front of the base; a connecting block in the shape of a T-shaped block is slidably arranged on the outside of the slide rod, and a through screw hole structure is provided on one side of the top of the connecting block, and the connecting block is threadedly engaged with the second screw rod, and a through circular through groove structure is provided at the front of the connecting block; a cylindrical connecting rod is slidably arranged in the circular through groove at the front of the connecting block; a dial indicator is fixedly connected to the rear end of the connecting rod.

[0011] Further, an annular control ring is rotatably arranged in the annular groove at the top of the mounting ring, and the control ring is threadedly engaged with each slider.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] In this application, during use, the positions of the pads and the bottom rod can be adjusted according to the diameters of the inner and outer rings of the bearing, so as to meet the needs of detecting bearings with different diameters. The axial clearances of the two inner rings of the bearing can be detected in one detection process. The whole measurement process is simple and fast, which is convenient for quickly and effectively fixing and detecting the bearing, and improves the detection efficiency. Description of the Drawings

[0014] Figure 1It is a schematic axonometric view of the overall structure of the utility model.

[0015] Figure 2 It is a schematic top view of the overall structure of the utility model.

[0016] Figure 3 It is a schematic bottom view of the overall structure of the utility model.

[0017] Figure 4 It is a schematic top view of the overall structure of the utility model in a disassembled state.

[0018] Figure 5 It is a schematic view of the partially disassembled structure of the mounting ring of the utility model.

[0019] Figure 6 It is a schematic view of the partially disassembled structure of the connecting block of the utility model.

[0020] In the figure, the correspondence between the component names and the drawing numbers is as follows:

[0021] 1. Base; 101. Bi-directional lead screw; 102. Spacer block; 103. First screw; 104. Clamping block; 105. Bolt; 106. Fixed rod; 107. Slide bar; 108. Second screw; 109. Connecting block; 110. Connecting rod; 111. Dial indicator; 2. Manual cylinder; 201. Mounting ring; 202. Control ring; 203. Slide block; 204. Bottom rod. Detailed implementation mode

[0022] The following further describes the implementation mode of the utility model in detail with reference to the drawings and embodiments.

[0023] Embodiment 1:

[0024] As shown in the attached Figure 1 to the attached Figure 6 figures:

[0025] The utility model provides a measuring instrument for the axial clearance of a turbocharger bearing, including a base 1; the base 1 adopts a rectangular block structure, and a set of T-shaped chute structures are opened on both sides of the top of the base 1; a manual cylinder 2 is fixedly arranged at the top rear of the base 1; the bottom of the manual cylinder 2 is drivingly connected with a mounting ring 201 with a circular plate structure, and a circular groove structure is opened at the bottom of the mounting ring 201, and four groups of rectangular chute structures are arranged in a circular array around the mounting ring 201, and a circular groove structure is opened at the top of the mounting ring 201; four groups of slide blocks 203 with rectangular block structures are slidably arranged in a circular array in the four rectangular chutes on the outer side of the mounting ring 201, and a tooth groove structure is opened at the top of the slide block 203; a bottom rod 204 with a rectangular rod structure is fixedly arranged at the bottom of the outer end of the slide block 203.

[0026] Among them, a control ring 202 with an annular structure is rotatably arranged in the annular groove at the top of the mounting ring 201, and the control ring 202 is threadedly connected to each group of sliders 203.

[0027] Specific usage mode and function of this embodiment:

[0028] Then, adjust the positions of each group of bottom rods 204 according to the diameter of the inner ring of the bearing. By rotating the control ring 202, through the threaded engagement between the control ring 202 and the sliders 203, drive each group of sliders 203 to slide along the rectangular chute on the outer side of the mounting ring 201, thereby synchronously driving each group of bottom rods 204 to move synchronously, so that each group of bottom rods 204 move above the inner ring of the bearing and do not contact the outer ring of the bearing. Then, manually control the manual cylinder 2 to drive the mounting ring 201 and the bottom rods 204 to move downward, so that the bottom rods 204 move to the position where they are in contact with the upper surface of the inner ring of the bearing.

[0029] Embodiment 2:

[0030] On the basis of Embodiment 1, as shown in Appendix Figure 1 to Appendix Figure 6 shown:

[0031] Among them, a bidirectional lead screw 101 is rotatably arranged in the T-shaped chute at the top of the base 1; a group of pads 102 with a rectangular block structure are slidably arranged in the T-shaped chutes on both sides of the top of the base 1, and both groups of pads 102 are threadedly connected to the bidirectional lead screw 101; a first screw rod 103 is fixedly arranged on the top of the pad 102; a clamping block 104 with a rectangular block structure is slidably arranged on the outer side of the first screw rod 103; a bolt 105 is rotatably arranged on the outer side of the first screw rod 103 through threaded engagement; a fixing rod 106 with a cylindrical structure is fixedly arranged in the middle of the top of the base 1.

[0032] Among them, a slide rod 107 with a cylindrical structure is fixedly arranged at the front top of the base 1; a second screw rod 108 is rotatably arranged at the front top of the base 1; a connecting block 109 with a T-shaped block structure is slidably arranged on the outer side of the slide rod 107, and a through-hole structure is opened on one side of the top of the connecting block 109. The connecting block 109 is threadedly connected to the second screw rod 108, and a through-hole structure is opened on the front side of the connecting block 109; a connecting rod 110 with a cylindrical structure is slidably arranged in the circular through-hole on the front side of the connecting block 109; a dial indicator 111 is fixedly connected to the rear end of the connecting rod 110.

[0033] Specific usage mode and function of this embodiment:

[0034] In the present utility model, during use, the bearing to be detected is placed on the outside of the fixed rod 106. Then, according to the outer diameter size of the bearing, the positions of the two groups of cushion blocks 102 and clamping blocks 104 are adjusted. By rotating the bidirectional lead screw 101, the two groups of cushion blocks 102 are synchronously driven to slide inwards along the T-shaped sliding grooves on both sides of the top of the base 1, so that the two groups of cushion blocks 102 move to the positions at the bottom of the outer ring of the bearing. Then, the outer ring of the bearing is placed above the two groups of cushion blocks 102, and then the clamping blocks 104 are placed above the outer ring of the bearing. Then, the bolt 105 is tightened to fix and limit the clamping block 104 through the bolt 105. Thus, through the cooperation of the two groups of clamping blocks 104 and the two groups of cushion blocks 102, the outer ring of the bearing is fixed. Then, the manual cylinder 2 is stopped, and the height of the dial indicator 111 is adjusted according to the height of the top of the bottom rod 204. By rotating the second screw rod 108, the connecting block 109 is driven to slide up and down along the sliding rod 107, thereby driving the dial indicator 111 to slide up and down. After adjusting the dial indicator 111 to the appropriate height, by sliding the connecting rod 110 back and forth along the connecting block 109, the front and back positions of the dial indicator 111 are adjusted, so that the detection needle of the dial indicator 111 is above the bottom rod 204 and is in contact with the bottom rod 204. The reading on the dial indicator 111 is recorded. Then, the manual cylinder 2 is started again to continue driving the mounting ring 201 and each group of bottom rods 204 to move downwards, so that each group of bottom rods 204 presses the inner ring of the bearing to move downwards. After moving to the limit, by observing the reading difference on the dial indicator 111, the axial clearance of the current group of bearings can be measured. After measuring the inner ring of the outer group, the positions of the two groups of cushion blocks 102 and each group of bottom rods 204 are adjusted again. The detected part is fixed by the cushion blocks 102 and the clamping blocks 104, and then the inner ring of the other group of bearings is pressed and detected according to the same steps, thus completing the entire detection step. This device can be adjusted accordingly according to bearings of different models and different diameters, and thus can complete the measurement work for bearings of different diameters and different models. Moreover, the entire measurement process is simple and fast, facilitating the quick and effective fixing and detection of bearings, and improving the detection efficiency.

Claims

1. Turbocharger bearing axial clearance measuring instrument, characterized in that, It includes a base (1); the base (1) adopts a rectangular block structure, and a set of T-shaped chute structures are provided on both sides of the top of the base (1): a manual cylinder (2) is fixedly arranged at the top rear of the base (1); the bottom of the manual cylinder (2) is drivingly connected with an installation ring (201) in a circular plate shape, and a circular groove structure is provided at the bottom of the installation ring (201). Four rectangular chute structures are annularly arranged around the installation ring (201), and an annular groove structure is provided at the top of the installation ring (201); four slider blocks (203) in a rectangular block structure are slidably arranged in the four rectangular chutes on the outside of the installation ring (201) in an annular array, and a toothed groove structure is provided at the top of the slider block (203); a bottom rod (204) in a rectangular rod structure is fixedly arranged at the bottom of the outer side end of the slider block (203).

2. The turbocharger bearing axial clearance measuring instrument according to claim 1, characterized in that: A bidirectional lead screw (101) is rotatably arranged in the T-shaped chute on the top of the base (1); a set of cushion blocks (102) in a rectangular block structure are slidably arranged in the T-shaped chutes on both sides of the top of the base (1), and the two cushion blocks (102) are in threaded fit connection with the bidirectional lead screw (101).

3. The turbocharger bearing axial clearance measuring instrument according to claim 2, characterized in that: A first screw rod (103) is fixedly arranged at the top of the cushion block (102); a clamping block (104) in a rectangular block structure is slidably arranged on the outside of the first screw rod (103).

4. The turbocharger bearing axial clearance measuring instrument according to claim 3, characterized in that: A bolt (105) is rotatably arranged on the outside of the first screw rod (103) through threaded fit; a fixing rod (106) in a cylindrical structure is fixedly arranged in the middle of the top of the base (1).

5. The turbocharger bearing axial clearance measuring instrument according to claim 1, characterized in that: A sliding rod (107) in a cylindrical structure is fixedly arranged at the top front of the base (1); a second screw rod (108) is rotatably arranged at the top front of the base (1).

6. The turbocharger bearing axial clearance measuring instrument according to claim 5, characterized in that: A connecting block (109) in a T-shaped block structure is slidably arranged on the outside of the sliding rod (107), and a through screw hole structure is provided on one side of the top of the connecting block (109). The connecting block (109) is in threaded fit connection with the second screw rod (108), and a through circular through groove structure is provided on the front side of the connecting block (109); a connecting rod (110) in a cylindrical structure is slidably arranged in the circular through groove on the front side of the connecting block (109); a dial indicator (111) is fixedly connected to the rear end of the connecting rod (110).

7. The turbocharger bearing axial clearance measuring instrument according to claim 1, characterized in that: A control ring (202) in a circular ring shape is rotatably arranged in the annular groove at the top of the installation ring (201), and the control ring (202) is in threaded fit connection with each slider block (203).

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