Bearing testing equipment for testing the elliptic and tapered deformation of the inner bore of the bearing outer ring.

Abstract

This invention relates to the field of bearing testing equipment, specifically to a bearing testing equipment for testing the elliptical and tapered deformation of the inner bore of a bearing outer ring. To address the problem that existing bearing testing equipment cannot test for elliptical and tapered deformation of the inner bore of a bearing outer ring, a test bearing, a first process bearing assembly, and a second process bearing assembly are sequentially mounted on a test spindle from left to right. The left end of the test spindle is threadedly connected to a lock nut. The test bearing is a flange-type bearing. The right end of a bushing is mounted outside the non-flange end of the outer ring of the test bearing. The test bearing housing is mounted outside the bushing. The test bearing housing is connected to the flange end of the test bearing by multiple bolts. Multiple adjusting screws are threaded onto the test bearing housing. The bottom protrusion of the adjusting screw is located above the left end of the bushing. The test spindle is housed within the testing equipment housing. A radial loading assembly is located above the testing equipment housing, which can meet the requirements for elliptical and tapered deformation of the inner bore of the bearing outer ring.

Description

Technical Field

[0001] This invention relates to the field of bearing testing equipment, and more specifically to a bearing testing equipment for performing tests on the elliptical and tapered deformation of the inner hole of the outer ring of a bearing. Background Technology

[0002] As a core component of machinery, bearings support the rotation and operation of the machine. If there are problems with the quality at the factory or if problems such as eccentricity occur during use, it may affect the overall operation of the equipment and the overall production progress. Therefore, it is essential to conduct simulated tests on bearing performance using a bearing testing machine before mass production or shipment.

[0003] Bearing testers are tools used for testing bearings. They can perform durability tests under high temperature and high speed conditions, as well as various performance tests such as overspeed, overload, and oil cut-off. However, existing bearing testers cannot test bearings when the inner hole of the outer ring is deformed into an ellipse or taper, which is a technological gap. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing bearing testers cannot perform tests when the inner hole of the bearing outer ring is deformed into an ellipse or a taper. This invention provides a bearing tester for testing the elliptical and taper deformation of the inner hole of the bearing outer ring.

[0005] The objective of this invention is achieved as follows: a bearing tester for performing tests on the elliptical and tapered deformation of the inner bore of the outer ring of a bearing, comprising a tester housing, a test spindle, a test bearing, a first process bearing assembly, a second process bearing assembly, a lock nut, a test bearing housing, a bushing, a radial loading assembly, a process bushing, multiple bolts, and multiple adjusting screws.

[0006] The test bearing, the first process bearing assembly, and the second process bearing assembly are sequentially mounted on the test spindle from left to right. The left end of the test spindle is threadedly connected to a locking nut, which contacts the left end of the test bearing. The test bearing is a flange bearing. The right end of the bushing is mounted outside the non-flange end of the outer ring of the test bearing. The test bearing housing is mounted outside the bushing. The test bearing housing is connected to the flange end of the test bearing by multiple bolts. Multiple adjusting screws are threaded onto the test bearing housing. The bottom of the adjusting screw has a protrusion along the side wall of the screw. The bottom of the adjusting screw is located above the left end of the bushing. The test spindle is housed inside the test chamber housing. The test bearing housing is fitted into the test chamber housing. The first process bearing assembly has a radial loading component mounted on the test chamber housing at its top. The second process bearing assembly is connected to the right end of the test chamber housing through a process bushing.

[0007] Furthermore, there are two adjusting screws.

[0008] Furthermore, the locking nut comes into contact with the inner ring of the test bearing.

[0009] Furthermore, an adjusting washer is fitted onto the adjusting screw, and the adjusting washer is positioned between the nut of the adjusting screw and the test bearing seat.

[0010] Furthermore, the right end of the test bearing is provided with a disassembly ring, which is fitted onto the outside of the test spindle, and the right end of the disassembly ring is pressed against the shoulder of the test spindle.

[0011] Furthermore, the first process bearing assembly includes an intermediate spacer ring, an outer ring spacer ring, and two first process bearings;

[0012] Two first-process bearings are mounted on the test spindle, with an outer ring spacer positioned between the outer rings of the two first-process bearings and an intermediate spacer positioned between the inner rings of the two first-process bearings.

[0013] Furthermore, the radial loading assembly includes a radial loading cylinder, a radial loading end cap, a radial loading piston, a radial loading adapter sleeve, and two load bodies;

[0014] The radial loading cylinder is fixed on the tester housing. The radial loading cylinder, radial loading end cap, radial loading piston and radial loading adapter sleeve are connected in sequence. Each end of the radial loading adapter sleeve is connected to a first process bearing through a load body.

[0015] Furthermore, the second process bearing assembly includes a clamping spacer, a clamping washer, and two second process bearings;

[0016] Two secondary process bearings are mounted on the test spindle, with a clamping washer placed between the two secondary process bearings and a clamping spacer placed between the inner rings of the two secondary process bearings.

[0017] Furthermore, a spacer ring is provided between the second process bearing on the left end and the first process bearing adjacent to the second process bearing.

[0018] Furthermore, a test spindle disassembly ring fitted on the test spindle is provided between the left end of the first process bearing on the left end and the shoulder of the test spindle.

[0019] Beneficial effects:

[0020] The outer ring of the test bearing is installed in a bushing, which is then installed in a test bearing housing. Adjusting pins and shims are installed on the test bearing housing. The elliptical deformation of the bushing's inner bore is adjusted by changing the stroke of the adjusting pins, and the taper angle of the bushing's inner bore is adjusted by changing the force application point (protrusion position) of the adjusting pins. Ultimately, this causes elliptical and taper deformation in the inner bore of the bearing's outer ring. The bearing deformation is measured and tested after selecting and matching the adjusting pins. This ensures that the requirements for elliptical and taper deformation of the outer ring's inner bore are met. The bearing's functional performance and lifespan under eccentric loading conditions can be evaluated. The experimental results can be used to optimize and improve the manufacturing process of bearings used under special operating conditions. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the bearing testing apparatus of the present invention for testing the elliptical and tapered deformation of the inner bore of the bearing outer ring. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the bearing testing apparatus of the present invention for testing the elliptical and tapered deformation of the inner bore of the bearing outer ring. Figure 2 ;

[0024] Figure 3 This is an enlarged view of the test bearing of the present invention;

[0025] Figure 4 This is the invention Figure 3 AA view;

[0026] Figure 5 This is a schematic diagram of the adjusting screw. Detailed Implementation

[0027] Specific implementation method one: A bearing tester for performing elliptical and tapered deformation tests on the inner hole of the outer ring of a bearing, comprising a tester housing 1, a test spindle 2, a test bearing 4, a first process bearing assembly 5, a second process bearing assembly 6, a lock nut 7, a test bearing seat 8, a bushing 9, a radial loading assembly 14, a process bushing 15, multiple bolts 10 and multiple adjusting screws 11.

[0028] The test bearing 4, the first process bearing assembly 5, and the second process bearing assembly 6 are sequentially mounted on the test spindle 2 from left to right. The left end of the test spindle 2 is threadedly connected to the locking nut 7, which contacts the left end of the test bearing 4. The test bearing 4 is a flange bearing. The right end of the bushing 9 is mounted outside the non-flange end of the outer ring of the test bearing 4. The test bearing seat 8 is mounted outside the bushing 9. The test bearing seat 8 is connected to the flange end of the test bearing 4 by multiple bolts 10. Multiple adjusting screws 11 are threadedly connected to the test bearing seat 8. The bottom of the adjusting screw 11 has a protrusion along the side wall of the screw. The bottom of the adjusting screw 11 is located above the left end of the bushing 9. The test spindle 2 is set inside the test chamber housing 1. The test bearing seat 8 is fitted with the test chamber housing 1. The first process bearing assembly 5 has a radial loading assembly 14 mounted on the test chamber housing 1 at its top. The second process bearing assembly 6 is connected to the right end of the test chamber housing 1 through a process bushing 15.

[0029] In this embodiment: the outer ring of the test bearing is installed in a bushing, and the bushing is installed in a test bearing housing. An adjusting pin and adjusting shims are provided on the test bearing housing. The elliptical deformation of the bushing's inner bore is adjusted by adjusting the stroke of the adjusting pin. The taper angle of the bushing's inner bore is adjusted by changing the force application point (protrusion position) of the adjusting pin, ultimately causing elliptical and taper deformation in the inner bore of the bearing's outer ring. By selecting and matching the adjusting pin, the bearing deformation is measured and tested, ensuring that the requirements for elliptical and taper deformation of the outer ring's inner bore are met.

[0030] Specific implementation method 2: A bearing testing machine for testing the elliptical and tapered deformation of the inner hole of the bearing outer ring, wherein the number of adjusting screws 11 is two.

[0031] Other implementation methods are the same as those in Specific Implementation Method 1.

[0032] Specific implementation method three: a bearing tester for performing tests on the elliptical and tapered deformation of the inner hole of the outer ring of a bearing, wherein the locking nut 7 is in contact with the inner ring of the test bearing 4.

[0033] In this embodiment: the lock nut is used to tighten the inner ring of the test bearing, thus limiting the position of the test bearing.

[0034] Other implementation methods are the same as those in Specific Implementation Method 1.

[0035] Specific implementation method four: a bearing tester for performing tests on the elliptical and tapered deformation of the inner hole of the outer ring of a bearing, wherein an adjusting shim 12 is fitted on the adjusting screw 11, and the adjusting shim 12 is disposed between the nut of the adjusting screw 11 and the test bearing seat 8.

[0036] In this embodiment, the position of the adjusting screw can be determined based on the shrinkage of the adjusting pad.

[0037] Other implementation methods are the same as those in Specific Implementation Method 1.

[0038] Specific implementation method five: a bearing tester for performing elliptical and tapered deformation tests on the inner hole of the outer ring of a bearing, wherein the right end of the test bearing 4 is provided with a disassembly ring 13, the disassembly ring 13 is fitted on the outside of the test spindle 2, and the right end of the disassembly ring 13 is pressed against the shoulder of the test spindle 2.

[0039] In this embodiment, the test bearing can be removed by applying force to the disassembly ring during disassembly.

[0040] Other implementation methods are the same as those in Specific Implementation Method 1.

[0041] Specific implementation method six: a bearing tester for performing tests on the elliptical and tapered deformation of the inner hole of the bearing outer ring, wherein the first process bearing assembly 5 includes an intermediate spacer ring 5-2, an outer ring spacer ring 5-3 and two first process bearings 5-1;

[0042] Two first process bearings 5-1 are mounted on the test spindle 2. An outer ring spacer 5-3 is positioned between the outer rings of the two first process bearings 5-1, and an intermediate spacer 5-2 is positioned between the inner rings of the two first process bearings 5-1.

[0043] In this embodiment: the intermediate spacer ring and the outer spacer ring are used to define the distance between the two first process bearings.

[0044] Other implementation methods are the same as those in Specific Implementation Method 1.

[0045] Specific implementation method seven: a bearing tester for performing elliptical and tapered deformation tests on the inner hole of the outer ring of a bearing, wherein the radial loading assembly 14 includes a radial loading cylinder 14-1, a radial loading end cover 14-2, a radial loading piston 14-3, a radial loading adapter sleeve 14-4, and two load bodies 14-5.

[0046] The radial loading cylinder 14-1 is fixed on the tester housing 1. The radial loading cylinder 14-1, the radial loading end cover 14-2, the radial loading piston 14-3 and the radial loading adapter sleeve 14-4 are connected in sequence. Each end of the radial loading adapter sleeve is connected to a first process bearing 5-1 through a load body 14-5.

[0047] Other implementation methods are the same as those in Specific Implementation Method Six.

[0048] Specific implementation method eight: a bearing tester for performing tests on the elliptical and tapered deformation of the inner hole of the bearing outer ring, the second process bearing assembly 6 includes a clamping spacer 6-2, a clamping washer 6-3 and two second process bearings 6-1;

[0049] Two second process bearings 6-1 are mounted on the test spindle 2, a tightening washer 6-3 is placed between the two second process bearings 6-1, and a tightening spacer 6-2 is placed between the inner rings of the two second process bearings 6-1.

[0050] In this embodiment: the clamping spacer and clamping washer are used to define the distance between the two second process bearings.

[0051] Other implementation methods are the same as those in Specific Implementation Method Seven.

[0052] Specific implementation method nine: A bearing tester for performing tests on the elliptical and tapered deformation of the inner hole of the bearing outer ring, wherein a spacer ring 16 is provided between the second process bearing 6-1 on the left end and the first process bearing 5-1 adjacent to the second process bearing 6-1.

[0053] Other implementation methods are the same as those in Specific Implementation Method 8.

[0054] Specific implementation method ten: A bearing tester for performing tests on the elliptical and tapered deformation of the inner hole of the bearing outer ring, wherein a test spindle disassembly ring 17 fitted on the test spindle 2 is provided between the left end of the first process bearing 5-1 on the left end and the shoulder of the test spindle 2.

[0055] In this embodiment: During disassembly, force can be applied to the disassembly ring of the test spindle to remove all workpieces on the right end of the shoulder of the test spindle.

[0056] Other implementation methods are the same as those in specific implementation method nine.

Claims

1. A bearing testing apparatus for testing the elliptical and tapered deformation of the inner bore of the bearing outer ring, characterized in that: It includes tester shell (1), test spindle (2), test bearing (4), first process bearing assembly (5), second process bearing assembly (6), locking nut (7), test bearing seat (8), bushing (9), radial loading assembly (14), process bushing (15), a plurality of bolts (10) and a plurality of adjusting screws (11); Test bearing (4), first process bearing assembly (5) and second process bearing assembly (6) are sequentially sleeved on test spindle (2) from left to right, the left end of test spindle (2) is in threaded connection with locking nut (7), the locking nut (7) is in contact with the left end of test bearing (4), the test bearing (4) is a flange bearing, the right end of bushing (9) is sleeved on the non-flange end outside the outer ring of test bearing (4), test bearing seat (8) is sleeved on the outside of bushing (9), the flange end of test bearing (4) is connected with test bearing seat (8) through a plurality of bolts (10), a plurality of adjusting screws (11) are in threaded connection on test bearing seat (8), the screw rod bottom of adjusting screw (11) is provided with a protrusion arranged along the side wall of the screw rod, the elliptical deformation amount of the inner hole of bushing (9) is adjusted by adjusting the stroke of adjusting screw (11), the taper angle of the inner hole of bushing (9) is adjusted by adjusting the force point position of adjusting screw (11), that is, the position change of the protrusion, finally the inner hole of the outer ring of the bearing is deformed in ellipse and taper, the screw rod bottom of adjusting screw (11) is located above the left end of bushing (9), test spindle (2) is arranged in tester shell (1), test bearing seat (8) is arranged in cooperation with tester shell (1), the top of first process bearing assembly (5) is provided with radial loading assembly (14) arranged on tester shell (1), second process bearing assembly (6) is connected with the right end of tester shell (1) through process bushing (15).

2. The bearing tester of claim 1, wherein: The number of adjusting screws (11) is two.

3. The bearing tester of claim 1, wherein: The locking nut (7) is in contact with the inner ring of the test bearing (4).

4. The bearing tester of claim 1 wherein: An adjusting pad (12) is sleeved on the adjusting screw (11), and the adjusting pad (12) is arranged between the nut of the adjusting screw (11) and the test bearing seat (8).

5. The bearing tester of claim 1 wherein: The right end of the test bearing (4) is provided with a dismounting ring (13), the dismounting ring (13) is sleeved on the outside of the test spindle (2), and the right end of the dismounting ring (13) is tightly arranged on the shoulder of the test spindle (2).

6. The bearing tester of claim 1 wherein: The first process bearing assembly (5) comprises an intermediate spacing ring (5-2), an outer ring spacing ring (5-3) and two first process bearings (5-1). The two first process bearings (5-1) are sleeved on the test spindle (2), the outer ring spacing ring (5-3) is arranged between the outer rings of the two first process bearings (5-1), and the intermediate spacing ring (5-2) is arranged between the inner rings of the two first process bearings (5-1).

7. The bearing tester of claim 6 wherein: The radial loading assembly (14) comprises a radial loading cylinder (14-1), a radial loading end cover (14-2), a radial loading piston (14-3), a radial loading adapter sleeve (14-4) and two load bodies (14-5). The radial loading cylinder (14-1) is fixed on the tester housing (1), the radial loading cylinder (14-1), the radial loading end cover (14-2), the radial loading piston (14-3) and the radial loading adapter sleeve (14-4) are sequentially connected, and each end of the radial loading adapter sleeve is connected with a first process bearing (5-1) through a load body (14-5).

8. The bearing tester of claim 7 wherein: The second process bearing assembly (6) comprises a tight spacer ring (6-2), a tight washer (6-3) and two second process bearings (6-1). The two second process bearings (6-1) are sleeved on the test spindle (2), the tight washer (6-3) is arranged between the two second process bearings (6-1), and the tight spacer ring (6-2) is arranged between the inner rings of the two second process bearings (6-1).

9. The bearing tester of claim 8 wherein: The left end of the second process bearing (6-1) is provided with a spacer ring (16) between the second process bearing (6-1) and the first process bearing (5-1) adjacent to the second process bearing (6-1).

10. The bearing tester of claim 9 wherein: The left end of the left end of the first process bearing (5-1) and the shoulder of the test spindle (2) are provided with a test spindle dismounting ring (17) sleeved on the test spindle (2).

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