Portable bearing pad selection device

Abstract

The present invention discloses a portable bearing gasket selection device, comprising a guide shaft, a slotted measuring base embedded in one end of the guide shaft, a first bearing inner ring and a second bearing inner ring sleeved on the guide shaft; the slotted measuring base is fitted with the first bearing inner ring, and a circular measuring base is provided at the other end of the guide shaft to match the clearance of the second bearing inner ring, and corresponding calipers for measuring the spacing between the first bearing inner ring and the second bearing inner ring are respectively inserted into the inner holes of the slotted measuring base and the circular measuring base, and a spacer sleeve is clamped between the first bearing inner ring and the second bearing inner ring, and a measurement record is made once, and the first bearing inner ring and the second bearing inner ring are respectively installed in the support arm for fixing, and a measurement record is made twice, and the difference between the second measurement record and the first measurement record is made. The present invention realizes the rapid and convenient measurement of the thickness of the bearing gasket and the matching and selection of the appropriate gasket.

Description

Technical Field

[0001] The invention belongs to the technical field of bearing installation detection, and in particular relates to a portable bearing pad selection device. Background Art

[0002] With the rapid development of the automobile industry, people have higher and higher requirements for the comfort and safety of buses. Using buses with air suspension for transportation is an inevitable choice. Most of the existing air suspension bearings are not repaired in a standardized manner, which affects their normal service life and increases maintenance costs. Good maintenance specifications can improve operational safety and reduce subsequent maintenance costs. In the after-sales maintenance of the suspension, the thickness of the support arm bearing gasket has a greater impact on the service life of the bearing. It is usually estimated manually. If the gasket is too thick, the bearing starting force is too small, which will cause the bearing to move axially, causing abnormal noise in the bearing and shortening the service life of the bearing. On the contrary, if the gasket is too thin, the bearing starting force is too large, which will cause abnormal heating of the bearing and may cause the bearing to burn. In severe working conditions, it may also burn and cause fire, causing fires and traffic accidents. Summary of the invention

[0003] The purpose of the present invention is to solve the above technical problems and provide a portable bearing gasket selection device, so as to quickly and conveniently measure the thickness of the bearing gasket and select the appropriate gasket. In order to achieve the above purpose, the technical solution of the present invention is as follows:

[0004] A portable bearing gasket selection device comprises a guide shaft, a slotted measuring base embedded in one end of the guide shaft, a first bearing inner ring and a second bearing inner ring sleeved on the guide shaft; the slotted measuring base is fitted with the first bearing inner ring, and a circular measuring base is provided at the other end of the guide shaft to match the clearance of the second bearing inner ring, and corresponding calipers for measuring the spacing between the first bearing inner ring and the second bearing inner ring are respectively inserted into the inner holes of the slotted measuring base and the circular measuring base, and a spacer sleeve is clamped between the first bearing inner ring and the second bearing inner ring. A measurement record is made once, and the first bearing inner ring and the second bearing inner ring are respectively installed in a support arm for fixing, and a measurement record is made twice, and the difference between the second measurement record and the first measurement record is the thickness value of the gaskets provided between the two ends of the spacer sleeve and the first bearing inner ring and the second bearing inner ring respectively when the support arm is installed.

[0005] Specifically, the first bearing inner ring and the second bearing inner ring are respectively sleeved with bearings, and the outer circumference of the bearing is sleeved with a bearing outer ring arranged opposite to the first bearing inner ring or the second bearing inner ring.

[0006] Specifically, the support arm is a hollow column, the inner wall of the support arm is provided with an inner ring of the outer ring of the gear bearing, and the two outer rings of the bearings are positioned at both ends of the inner ring.

[0007] Specifically, the caliper is a micrometer, and the caliper includes a measuring moving screw device, a U-shaped claw connected to the measuring moving screw device, and a digital display device arranged inside the measuring moving screw device.

[0008] Specifically, two ends of the inner opening of the U-shaped clamping claw are provided with inwardly extending centering circular heads, which are respectively plugged into the inner hole of the slotted measuring base and the inner hole of the circular measuring base.

[0009] Specifically, the insertion depth of the centering circle head is flush with the side edge of the bearing inner ring.

[0010] Compared with the prior art, the portable bearing pad selection device of the present invention has the following beneficial effects:

[0011] The portable bearing gasket selection device has a simple structure and is easy to carry. During the maintenance and inspection process, the measurement results can be directly observed to reduce maintenance costs. The accuracy of the gasket installed inside the bearing is improved to reduce errors caused by human factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of a measurement record structure of an embodiment of the present invention;

[0013] Figure 2 for Figure 1 A schematic diagram of the partially enlarged structure;

[0014] Figure 3 This is a schematic diagram of the secondary measurement recording structure in this embodiment;

[0015] Figure 4 This is a schematic diagram of the swing arm structure with a gasket installed in this embodiment;

[0016] The numbers in the figure represent:

[0017] 1 guide shaft, 2 slotted measuring base, 3 first bearing inner ring, 31 second bearing inner ring, 32 bearing, 33 bearing outer ring, 4 circular measuring base, 5 spacer, 51 washer, 6 support arm, 61 inner ring, 7 pin shaft, 71 swing arm, 72 nut, 8 oil seal seat ring, 81 oil seal, 9 measuring moving screw device, 91 U-shaped claw, 92 digital display, 93 centering circle head. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] Example:

[0020] Reference Figure 1-4As shown, this embodiment is a portable bearing gasket selection device, comprising a guide shaft 1, a slotted measuring base 2 embedded in one end of the guide shaft 1, a first bearing inner ring 3 and a second bearing inner ring 31 sleeved on the guide shaft 1; the slotted measuring base 2 is arranged in close contact with the inner ring of the first bearing 3, and a circular measuring base 4 with a clearance fit with the second bearing inner ring 31 is provided at the other end of the guide shaft 1, and corresponding calipers for measuring the spacing between the first bearing inner ring 3 and the second bearing inner ring 31 are respectively inserted into the inner holes of the slotted measuring base 2 and the circular measuring base 4, and a spacer sleeve 5 is clamped between the first bearing inner ring 3 and the second bearing inner ring 31. The measurement is recorded once, the spacer sleeve 5 is removed, and the first bearing inner ring 3 and the second bearing inner ring 31 are respectively installed in the support arm 6 for fixing, and the measurement is recorded twice. The difference between the second measurement record and the first measurement record is the thickness value of the gasket 51 provided between the two ends of the spacer sleeve 5 and the first bearing inner ring 3 and the second bearing inner ring 31 when the support arm 6 is installed.

[0021] The first bearing inner ring 3 and the second bearing inner ring 31 are respectively provided with bearings 32, and the outer periphery of the bearing 32 is provided with a bearing outer ring 33 arranged opposite to the first bearing inner ring 3 or the second bearing inner ring 31. The support arm 6 is a hollow cylinder, and the inner wall of the support arm 6 is provided with an inner ring 61 of the gear bearing outer ring 33, and the two bearing outer rings 33 are positioned at the two ends of the inner ring 61.

[0022] After measuring the thickness of the gasket 51, remove the guide shaft 1, the slotted measuring base 2, and the circular measuring base 4, and install the swing arm structure, including the pin 7, the spacer 5 sleeved on the pin 7, the washers 51 arranged at both ends of the spacer 5, and the bearing assembly clamped between the pin 7 and the support arm 6; the outer end of the bearing assembly is provided with an oil seal assembly for sealing the pin 7 and the support arm 6, the outer side of the oil seal assembly is provided with a swing arm 71 sleeved on the pin 7, and the end of the pin 7 is provided with a nut 72 for locking the swing arm 71.

[0023] The bearing assembly includes a bearing inner ring fitted with the pin shaft 7, a bearing 32, and a bearing outer ring 33 that cooperates with the bearing inner ring to clamp the bearing. A washer 51 is clamped between the bearing inner ring and the spacer 5.

[0024] The oil seal assembly includes an oil seal seat ring 8 disposed between the swing arm 71 and the inner ring of the bearing, and an oil seal 81 disposed between the oil seal seat ring 8 and the support arm 6 .

[0025] The caliper of this embodiment is a micrometer, which includes a measuring moving screw device 9, a U-shaped clamping jaw 91 connected to the measuring moving screw device 9, and a digital display 92 arranged inside the measuring moving screw device 9; the inner ends of the U-shaped clamping jaw 91 are provided with inwardly extending centering circular heads 93, which are respectively plugged into the inner holes of the slotted measuring base 2 and the inner holes of the circular measuring base 4. The insertion depth of the centering circular head 93 is flush with the side of the inner ring of the bearing.

[0026] When this embodiment is applied, the inner ring of the bearing is installed on the guide shaft, a spacer sleeve is clamped between the two inner rings of the bearings, the caliper is positioned between the slotted measuring base and the circular measuring base, and the digital display is reset to zero; the inner ring of the bearing is reinstalled into the inner ring of the support arm, the caliper is measured again, and the digital display shows a value, which is the distance between the spacer sleeve and the inner ring of the bearing. The thickness of the gasket is determined between the spacer sleeve and the bearing, and the measurement of the gasket selection is completed; the guide shaft is removed, and the gasket is installed between the inner ring of the bearing and the spacer sleeve, and the pin shaft is inserted into the gasket to form a swing arm structure.

[0027] The portable bearing gasket selection device in this embodiment has a simple structure and is easy to carry; during the maintenance and inspection process, the measurement results can be directly observed to reduce maintenance costs; the accuracy of the gasket installed inside the bearing is improved to reduce errors caused by human factors.

[0028] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. Portable bearing pad selection device, Features: The invention comprises a guide shaft, a slotted measuring base embedded in one end of the guide shaft, a first bearing inner ring, a second bearing inner ring and a support arm sleeved on the guide shaft; the slotted measuring base is fitted with the first bearing inner ring, a circular measuring base with a clearance fit with the second bearing inner ring is provided at the other end of the guide shaft, corresponding calipers for measuring the distance between the first bearing inner ring and the second bearing inner ring are respectively inserted into the inner holes of the slotted measuring base and the circular measuring base, a spacer is clamped between the first bearing inner ring and the second bearing inner ring, and a measurement record is made once; the spacer is removed; the first shaft Bearings are respectively sleeved on the bearing inner ring and the second bearing inner ring, and the outer circumference of the bearing is sleeved with a bearing outer ring arranged opposite to the first bearing inner ring or the second bearing inner ring; the support arm is a hollow cylinder, and the inner ring of the gear bearing outer ring is arranged on the inner wall of the support arm, and the two bearing outer rings are positioned to the two ends of the inner ring, so that the first bearing inner ring and the second bearing inner ring are respectively installed in the support arm and fixed, and a second measurement record is recorded; the difference between the second measurement record and the first measurement record is the thickness of the gaskets arranged between the first bearing inner ring and the second bearing inner ring at both ends of the spacer when the support arm is installed.

2. The portable bearing pad selection device according to claim 1, Features: The caliper is a micrometer, and the caliper comprises a measuring moving screw device, a U-shaped clamping claw connected to the measuring moving screw device, and a digital display device arranged inside the measuring moving screw device.

3. The portable bearing pad selection device according to claim 2, Features: Both ends of the inner opening of the U-shaped clamping claw are provided with inwardly extending centering circular heads, which are respectively plugged into the inner hole of the slotted measuring base and the inner hole of the circular measuring base.

4. The portable bearing pad selection device according to claim 3, Features: The insertion depth of the centering circle head is flush with the side edge of the bearing inner ring.

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