Rolling bearing life tester for diversified load test

Abstract

A kind of diversified load test rolling bearing life tester, including base, the top of base is provided with a intermittent left and right reciprocating swing swing base, the top of swing base is provided with a reciprocating movement along the length direction of swing base with swing base swings slide base, the top of slide base is fixedly connected with three bearing boxes from left to right, bearing box top is provided with oil filler, bearing box is respectively provided with test shaft, test shaft is connected by test bearing and bearing box;Left and middle test shaft is respectively connected with axial loading component, and the right test shaft is connected with radial loading component;The front side of left axial loading component is provided with a reciprocating forward and backward knock column, and the amplitude of knock column forward and backward reciprocating movement can be periodically changed.The present application effectively solves the problem of inaccurate and not comprehensive rolling bearing life test caused by lack of diversified load conditions under rolling bearing life test equipment.

Description

Technical Field

[0001] This invention belongs to the field of bearing life testing devices, and specifically relates to a rolling bearing life testing machine for diversified load testing. Background Technology

[0002] A rolling bearing is a precision mechanical component that transforms the sliding friction between a rotating shaft and its housing into rolling friction, thereby reducing frictional losses. A rolling bearing generally consists of four parts: an inner ring, an outer ring, rolling elements, and a cage. The inner ring mates with the shaft and rotates with it; the outer ring mates with the bearing housing and provides support; the rolling elements are evenly distributed between the inner and outer rings by the cage, and their shape, size, and number directly affect the performance and lifespan of the rolling bearing; the cage ensures the even distribution of the rolling elements, guides their rotation, and provides lubrication.

[0003] The advantages of rolling bearings lie in their good balance between cost, size, weight, load capacity, durability, precision, and friction. However, the lifespan of rolling bearings varies depending on the operating environment. Therefore, it is necessary to study the lifespan of rolling bearings under diverse load conditions. However, current equipment for testing diverse loads is not yet mature enough to meet these needs. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a rolling bearing life testing machine for diversified load testing, effectively solving the problem of inaccurate and incomplete rolling bearing life testing caused by the lack of rolling bearing life testing equipment under diversified load conditions.

[0005] The technical solution adopted by the present invention to solve the above problems is as follows:

[0006] A rolling bearing life testing machine for diversified load testing includes a base, a rocker seat that can intermittently swing back and forth on the top of the base, a slide seat that can move back and forth along the length of the rocker seat as it swings, three bearing housings fixedly connected to the top of the slide seat from left to right, oil filling ports on the top of the bearing housings, and test shafts respectively installed inside the bearing housings, the test shafts being connected to the bearing housings via test bearings; axial loading components are connected to the test shafts on the left and middle sides respectively, and radial loading components are connected to the test shaft on the right side;

[0007] The axial loading component on the left side has a striking post that can reciprocate back and forth, and the amplitude of the reciprocating movement of the striking post can change periodically; the axial loading component in the middle has a continuous screw that can continuously load the axial loading component and the loading force can change periodically.

[0008] The radial loading component is equipped with a compression component that can periodically apply load to the radial loading component, and the loading force can continuously increase and then return to zero.

[0009] A power base is fixedly connected to the bottom of the rocker seat. The bottom of the power base is rotatably connected to the base. A rocking connecting rod is rotatably connected to the upper side of the power base. A rocking crank is rotatably connected to the end of the rocking connecting rod. A rocking grooved wheel shaft is rotatably connected to the base. The rocking grooved wheel shaft is fixedly connected to the rocking crank. A rocking dial shaft is engaged with the rocking dial shaft. The rocking dial shaft is rotatably connected to the base. The rocking dial shaft and the rocking grooved wheel shaft cooperate to form a grooved wheel mechanism. One rotation of the rocking dial shaft results in a 120° rotation of the rocking grooved wheel shaft. A large rocking gear is coaxially fixedly connected to the rocking dial shaft. The large rocking gear meshes with a small rocking gear. A rocking motor is fixedly connected to the base. The rotating shaft of the rocking motor and the small rocking gear are coaxially fixedly connected.

[0010] Multiple sliding rods are fixedly connected to the top of the base, and a reset seat is fixedly connected to the bottom of the slide. The sliding rods are all slidably connected to the reset seat. A reset spring is fitted on the outer periphery of both sides of the sliding rod.

[0011] The test shaft is coaxially fixedly connected to a test pinion, which meshes with a test gear. The slide is fixedly connected to three test motors, and the shafts of each test motor are coaxially fixedly connected to the corresponding test pinion.

[0012] Preferably, the radial loading component includes a buffer sleeve rotatably connected to the test shaft, a buffer shaft fixedly connected to the buffer sleeve, the buffer shaft being perpendicular to the test shaft, and a vertically movable buffer platform slidably connected to the outer periphery of the buffer shaft; a buffer spring is fitted around the outer periphery of the buffer shaft between the buffer platform and the buffer sleeve; the radial loading component also includes two upper and lower buffer supports fixedly connected to the slide, and multiple buffer guide rods fixedly connected between the two buffer supports, with the buffer platform and the buffer sleeve both slidably connected to the buffer guide rods.

[0013] Preferably, the axial loading component includes a buffer sleeve rotatably connected to the test shaft, a buffer shaft fixedly connected to the buffer sleeve, the buffer shaft being parallel to the test shaft, and a buffer platform slidably connected to the outer periphery of the buffer shaft, which can move along the axial direction of the buffer shaft; a buffer spring is fitted around the outer periphery of the buffer shaft between the buffer platform and the buffer sleeve; the axial loading component also includes two buffer supports fixedly connected to the slide block at the front and rear, and a plurality of buffer guide rods fixedly connected between the two buffer supports, with the buffer platform and the buffer sleeve both slidably connected to the buffer guide rods.

[0014] Preferably, the slide is fixedly connected to a striking guide, and the striking guide and the striking column are slidably connected; the striking column moves backward to form a structure in which the buffer platform moves backward; a striking long rod is hinged to the bottom front side of the striking column, and a striking sleeve that can move along the length of the striking long rod is slidably connected to the outer periphery of the upper side of the striking long rod; a striking short rod is hinged to the striking sleeve, and a striking large gear shaft is fixedly connected to the end of the striking short rod; the striking large gear shaft is rotatably connected to the slide; a striking small gear is meshed with the striking large gear shaft; a striking motor is fixedly connected to the slide, and the rotating shaft of the striking motor and the striking small gear are coaxially fixedly connected;

[0015] The striking pinion is meshed with an adjusting main gear shaft, which is rotatably connected to the slide. An adjusting incomplete gear is coaxially and fixedly connected to the striking main gear shaft, and this incomplete gear engages with an adjusting large gear. An adjusting worm is coaxially and fixedly connected to the adjusting large gear, which meshes with an adjusting worm wheel shaft. Both the adjusting worm and the adjusting worm are rotatably connected to the slide. The rotation of the adjusting incomplete gear causes the adjusting large gear to rotate intermittently.

[0016] An adjusting disc is coaxially fixedly connected to the adjusting worm gear shaft. An adjusting connecting rod is rotatably connected to the non-center position of the end face of the adjusting disc. An adjusting seat is rotatably connected to the end of the adjusting connecting rod. Two adjusting guide rods are slidably connected to the adjusting seat. The adjusting guide rods and the sliding seat are fixedly connected. An adjusting sleeve is rotatably connected to the adjusting seat. The adjusting sleeve is slidably connected to the lower outer periphery of the striking rod.

[0017] Preferably, the slide is fixedly connected to a continuous guide seat, and the continuous guide seat and the continuous screw are threaded together; the continuous screw moves backward to form a structure in which the buffer platform moves backward; the continuous screw is coaxially fixedly connected to a continuous pinion, and a continuous pad is rotatably connected to the side of the continuous screw near the buffer platform; the continuous pinion meshes with a continuous long gear shaft, and the continuous long gear shaft is rotatably connected to the slide; the continuous long gear shaft is coaxially fixedly connected to a continuous five-gear, and the continuous five-gear meshes with a continuous four-gear shaft, and the continuous four-gear shaft is rotatably connected to the slide;

[0018] The continuous four-gear shaft is coaxially fixedly connected to a continuous rocker arm, and the end of the continuous rocker arm is hinged to a continuous connecting rod; the slide is rotatably connected to a continuous three-gear shaft, and the continuous three-gear shaft is coaxially fixedly connected to a continuous disk, and the end of the continuous connecting rod is rotatably connected to a non-center position on the end face of the continuous disk;

[0019] The slide is fixedly connected to a continuous motor, and the rotating shaft of the continuous motor is coaxially fixedly connected to a continuous gear shaft. The continuous gear shaft and the slide are rotatably connected. The continuous gear shaft meshes with a continuous second gear, and the continuous second gear is coaxially fixedly connected to a continuous dial shaft. The continuous dial shaft is engaged with a continuous grooved wheel shaft, and the continuous grooved wheel shaft and the slide are rotatably connected. The continuous dial shaft and the continuous grooved wheel shaft cooperate to form a grooved wheel mechanism. One rotation of the continuous dial shaft results in the continuous grooved wheel shaft rotating 60°.

[0020] The continuous grooved wheel shaft is coaxially fixedly connected to a continuous incomplete gear, and the rotation of the continuous incomplete gear forms a structure in which the continuous three-gear shaft rotates intermittently.

[0021] Preferably, there are two radial loading components, and the buffer sleeves of the two radial loading components are rotatably connected to both sides of the test shaft; the two ends of the compression component are fixedly connected to the corresponding two buffer platforms; and a compression rack is fixedly connected to the middle of the compression component.

[0022] The slide is rotatably connected to a pressing gear shaft, and the pressing gear shaft is coaxially fixedly connected to a pressing incomplete gear. The pressing incomplete gear rotates to form a structure in which the toothed part of the pressing incomplete gear intermittently meshes with the pressing rack.

[0023] The first pressing gear shaft is meshed with a second pressing gear shaft, the second pressing gear shaft is coaxially fixedly connected to a pressing worm wheel, the pressing worm wheel is meshed with a pressing worm, and the second pressing gear shaft, the pressing worm wheel and the pressing worm are all rotatably connected to the slide.

[0024] The slide is fixedly connected to a compression motor, and the shaft of the compression motor is coaxially fixedly connected to a power incomplete gear; the slide is rotatably connected to a compression four-gear shaft, and the compression four-gear shaft is coaxially fixedly connected to a compression five-gear; the rotation of the power incomplete gear forms a structure in which the compression five-gear rotates intermittently.

[0025] The compression four-gear shaft is meshed with a compression three-gear, and the compression three-gear and the compression worm are coaxially and fixedly connected.

[0026] This invention features a novel structure, ingenious design, and simple and convenient operation, offering the following advantages compared to existing technologies:

[0027] 1. This device is equipped with a rocker that can swing back and forth intermittently, and a slide that moves back and forth along the length of the rocker as it swings. By placing dust, iron filings and other impurities into the bearing housing through the oil filling port, the actual condition of the bearing housing can be simulated. The bearing service life can be accurately tested by factors such as shaking and movement.

[0028] 2. This device applies axial load to the test bearing by setting two axial loading components on the left and in the middle, thereby simulating axial loading conditions and facilitating bearing life testing after axial loading. The two axial loading components have different loading methods: the striking column provides instantaneous striking forces of different strengths to the axial loading component on the left; the continuous screw provides continuous pressure to the axial loading component. Thus, different axial loading environments can be simulated by instantaneous axial force and continuous axial force, ensuring the diversity of testing.

[0029] 3. This device can simulate the bearing condition under radial load by setting a radial loading component on the right side, while the compression component can continuously compress and reset after the compression force increases, thereby simulating the environment of continuous loading and unloading, providing a variety of test environments for bearing life testing. Attached Figure Description

[0030] Figure 1 This is a first isometric view of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0031] Figure 2 This is a second isometric view of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0032] Figure 3 This is a first isometric view of the rocker stand of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0033] Figure 4 This is a second isometric view of the rocker stand of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0034] Figure 5 This is a first isometric view of the slide of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0035] Figure 6 This is a second isometric view of the slide of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0036] Figure 7 This is a third isometric view of the slide of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0037] Figure 8 This is an isometric view of the bearing housing and impact column of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0038] Figure 9 This is an exploded view of the bearing housing of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0039] Figure 10 This is a first isometric view of the striking column and its connecting components of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0040] Figure 11 This is a second isometric view of the striking column and its connecting components of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0041] Figure 12 This is an isometric view of the striking motor and its connecting components of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0042] Figure 13 This is a first isometric view of the bearing housing and continuous screw of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0043] Figure 14 This is a second isometric view of the bearing housing and continuous screw of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0044] Figure 15 This is a first isometric view of the continuous screw and its connecting components of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0045] Figure 16 This is a second isometric view of the continuous screw and its connecting components of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0046] Figure 17 This is a first isometric view of the bearing housing and compression component of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0047] Figure 18 This is a second isometric view of the bearing housing and compression component of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0048] Figure 19 This is a first isometric view of the compression component and its connecting component of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0049] Figure 20 This is a second isometric view of the compression component and its connecting component of a rolling bearing life testing machine for diversified load testing according to the present invention.

[0050] In the attached diagram: 1-base, 2-rocker seat, 3-slide seat, 4-bearing housing, 5-test shaft, 6-axial loading component, 7-striking post, 8-continuous screw, 9-radial loading component, 10-pressure component, 11-sliding rod, 12-return spring, 13-rocking connecting rod, 14-rocking crank, 15-rocking Geneva shaft, 16-rocking dial shaft, 17-rocking large gear, 18-rocking small gear, 19-rocking motor, 20-power base, 21-return 22-Test bearing, 23-Buffer sleeve, 24-Oil filler port, 25-Buffer shaft, 26-Buffer platform, 27-Buffer spring, 28-Buffer support, 29-Buffer guide rod, 30-Test pinion, 31-Test gear, 32-Test motor, 33-Striking guide seat, 34-Striking long rod, 35-Striking sleeve, 36-Striking short rod, 37-Striking gear shaft, 38-Striking pinion, 39-Striking motor, 40-Adjusting worm gear shaft, 41- 42-Adjusting disc, 43-Adjusting connecting rod, 44-Adjusting guide rod, 45-Adjusting sleeve, 46-Adjusting worm gear, 47-Adjusting large gear, 48-Adjusting incomplete gear, 49-Adjusting main gear shaft, 50-Continuous guide seat, 51-Continuous pad, 52-Continuous small gear, 53-Continuous long gear shaft, 54-Continuous motor, 55-Continuous first gear shaft, 56-Continuous second gear, 57-Continuous dial shaft, 58-Continuous Geneva shaft, 59-Continuous incomplete gear. 60-Continuous three-gear shaft, 61-Continuous disc, 62-Continuous connecting rod, 63-Continuous rocker arm, 64-Continuous four-gear shaft, 65-Continuous five-gear, 66-Pressure rack, 67-Pressure incomplete gear, 68-Pressure one-gear shaft, 69-Pressure two-gear shaft, 70-Pressure worm gear, 71-Pressure worm, 72-Pressure three-gear, 73-Pressure four-gear shaft, 74-Pressure five-gear, 75-Incomplete power gear, 76-Pressure motor. Detailed Implementation

[0051] The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0052] like Figure 1-20 As shown, the present invention provides a rolling bearing life testing machine for diversified load testing, including a base 1, a rocker seat 2 that can intermittently swing back and forth on the top of the base 1, a slide seat 3 that can move back and forth along the length direction of the rocker seat 2 as it swings, three bearing housings 4 are fixedly connected to the top of the slide seat 3 from left to right, the top of the bearing housings 4 are provided with oil filling ports 24, and test shafts 5 are respectively provided inside the bearing housings 4. The test shafts 5 are connected to the bearing housings 4 through test bearings 22; the test shafts 5 on the left and middle are respectively connected to axial loading components 6, and the test shaft 5 on the right is connected to radial loading components 9;

[0053] A striking post 7 that can reciprocate back and forth is provided on the front side of the axial loading component 6 on the left side, and the amplitude of the reciprocating movement of the striking post 7 can change periodically; a continuous screw 8 that can continuously load the axial loading component 6 and the loading force can change periodically is provided on the front side of the axial loading component 6 in the middle.

[0054] The radial loading component 9 is provided with a compression component 10 that can periodically load the radial loading component 9 and the loading force can continuously increase and then return to zero.

[0055] This device features a rocker arm 2 that can swing back and forth intermittently, with a slide block 3 on top of the rocker arm 2 that moves back and forth along the length of the rocker arm 2 as it swings. By placing dust, iron filings, and other impurities into the bearing housing 4 through the oil filling port 24, the device simulates the actual condition of the bearing housing and uses factors such as shaking and movement to accurately test the service life of the bearing.

[0056] This device applies axial load to the test bearing 22 by setting two axial loading components 6 on the left and in the middle, thereby simulating axial loading conditions and facilitating bearing life testing after axial loading. The two axial loading components 6 have different loading methods: the striking column 7 provides the left axial loading component 6 with instantaneous striking forces of different strengths; the continuous screw 8 can continuously provide the axial loading component 6 with continuous pressure. Thus, different axial loading environments can be simulated by instantaneous axial force and continuous axial force, ensuring the diversity of testing.

[0057] This device can simulate the bearing condition under radial load by setting the radial loading component 9 on the right side, while the pressing component 10 can continuously press and reset after the pressing force increases, thereby simulating the environment of continuous loading and unloading, providing a variety of test environments for bearing life testing.

[0058] like Figure 2 , 3As shown in Figures 4 and 7, a power base 20 is fixedly connected to the bottom of the rocker seat 2. The bottom of the power base 20 is rotatably connected to the base 1. A rocking connecting rod 13 is rotatably connected to the upper side of the power base 20, and a rocking crank 14 is rotatably connected to the end of the rocking connecting rod 13. A rocking grooved wheel shaft 15 is rotatably connected to the base 1, and the rocking grooved wheel shaft 15 and the rocking crank 14 are fixedly connected. A rocking dial shaft 16 is fitted to the rocking grooved wheel shaft 15. Shaft 16 is rotatably connected to the base 1. The rocking dial shaft 16 and the rocking grooved wheel shaft 15 cooperate to form a grooved wheel mechanism. The rocking dial shaft 16 rotates one revolution to form a structure in which the rocking grooved wheel shaft 15 rotates 120°. A rocking large gear 17 is coaxially fixedly connected to the rocking dial shaft 16. The rocking large gear 17 meshes with a rocking small gear 18. A rocking motor 19 is fixedly connected to the base 1. The rotating shaft of the rocking motor 19 and the rocking small gear 18 are coaxially fixedly connected.

[0059] The base 1 has multiple sliding rods 11 fixedly connected to its top, and the slide block 3 has a reset seat 21 fixedly connected to its bottom. The sliding rods 11 are all slidably connected to the reset seat 21. The outer periphery of both sides of the sliding rods 11 is fitted with reset springs 12.

[0060] During testing, the reciprocating swing of the rocker arm 2, combined with the reciprocating sliding of the slide arm 3 on it, simulates the real bearing working environment. In addition, impurities such as iron filings and dust are added from the oil filling port 24 of the bearing housing 4, thus simulating a real scenario and improving the accuracy of bearing testing.

[0061] When the rocking motor 19 is working, after the rocking pinion 17 to the rocking gear 17, the rocking dial shaft 16 rotates, so that the rocking grooved wheel shaft 15, which cooperates with the rocking dial shaft 16, can rotate intermittently. The rocking crank 14, which is fixedly connected to the rocking grooved wheel shaft 15, together with the rocking connecting rod 13 and the power seat 20, constitutes a crank-rocker mechanism. When the rocking crank 14 rotates intermittently, the power seat 20 and the rocker seat 2 can swing back and forth intermittently. The grooved wheel mechanism has the characteristic of unidirectional transmission, which allows the rocker seat 2 to be kept in the forward position.

[0062] When the rocker arm 2 swings back and forth, the sliding block 3 connected to it can also move left and right as it swings left and right. As a result, the oil in the multiple bearing housings 4 on it can simulate the real working environment with the impurities in them, creating a suitable working environment for the bearings and improving the test results.

[0063] like Figure 8-9As shown, a test pinion 30 is coaxially fixedly connected to the test shaft 5, and a test gear 31 is meshed with the test pinion 30. Three test motors 32 are fixedly connected to the slide block 3, and the rotating shaft of each test motor 32 is coaxially fixedly connected to the corresponding test pinion 30.

[0064] When testing is performed, the test motor 32 is controlled to work. After the test motor 32 is accelerated through the test pinion 30 to the test gear 31, the test shaft 5 rotates, which can perform life testing on the test bearing 22.

[0065] like Figure 8-9 As shown, the radial loading component 9 includes a buffer sleeve 23 rotatably connected to the test shaft 5. The buffer sleeve 23 is fixedly connected to a buffer shaft 25, which is perpendicular to the test shaft 5. A vertically movable buffer platform 26 is slidably connected to the outer periphery of the buffer shaft 25. A buffer spring 27 is fitted around the outer periphery of the buffer shaft 25, which is located between the buffer platform 26 and the buffer sleeve 23. The radial loading component 9 also includes two buffer supports 28 fixedly connected to the slide block 3. Multiple buffer guide rods 29 are fixedly connected between the two buffer supports. The buffer platform 26 and the buffer sleeve 23 are both slidably connected to the buffer guide rods 29.

[0066] By pressing the buffer platform 26 of the radial loading component 9, the buffer platform 26 moves vertically, and the buffer platform 26 can press the buffer sleeve 23 through the buffer spring 27 to achieve radial loading on the test bearing 22.

[0067] like Figure 17-18 As shown, the axial loading component 6 includes a buffer sleeve 23 rotatably connected to the test shaft 5. The buffer sleeve 23 is fixedly connected to a buffer shaft 25, which is parallel to the test shaft 5. A buffer platform 26 that can move along the axial direction of the buffer shaft 25 is slidably connected to the outer periphery of the buffer shaft 25. A buffer spring 27 is fitted on the outer periphery of the buffer shaft 25 between the buffer platform 26 and the buffer sleeve 23. The axial loading component 6 also includes two buffer supports 28 fixedly connected to the slide block 3 at the front and rear. A plurality of buffer guide rods 29 are fixedly connected between the two buffer supports 28. The buffer platform 26 and the buffer sleeve 23 are both slidably connected to the buffer guide rods 29.

[0068] By pressing the buffer platform 26 of the axial loading component 6, the buffer platform 26 can press the buffer sleeve 23 through the buffer spring, thereby achieving axial loading on the test bearing 22.

[0069] like Figure 10-12As shown, the slide block 3 is fixedly connected to a striking guide 33, and the striking guide 33 and the striking column 7 are slidably connected; the striking column 7 moves backward to form a structure in which the buffer platform 26 moves backward; a striking long rod 34 is hinged to the bottom front side of the striking column 7, and a striking sleeve 35 that can move along the length of the striking long rod 34 is slidably connected to the outer periphery of the upper side of the striking long rod 34; a striking short rod 36 is hinged to the striking sleeve 35; a striking large gear shaft 37 is fixedly connected to the end of the striking short rod 36; the striking large gear shaft 37 and the slide block 3 are rotatably connected; a striking small gear 38 is meshed with the striking large gear shaft 37; a striking motor 39 is fixedly connected to the slide block 3; the rotating shaft of the striking motor 39 and the striking small gear 38 are coaxially fixedly connected.

[0070] The striking pinion 38 is meshed with an adjusting main gear shaft 49, which is rotatably connected to the slide block 3. An adjusting incomplete gear 48 is coaxially and fixedly connected to the striking main gear shaft, and the adjusting incomplete gear 48 engages with an adjusting large gear 47. An adjusting worm 46 is coaxially and fixedly connected to the adjusting large gear 47, which meshes with an adjusting worm wheel shaft 40. Both the adjusting worm 46 and the adjusting worm wheel 48 are rotatably connected to the slide block 3. The rotation of the adjusting incomplete gear 48 creates a structure that causes the adjusting large gear 47 to rotate intermittently.

[0071] The adjusting worm gear shaft 40 is coaxially fixedly connected to an adjusting disc 41. An adjusting connecting rod 42 is rotatably connected to the non-center position of the end face of the adjusting disc 41. An adjusting seat 43 is rotatably connected to the end of the adjusting connecting rod 42. Two adjusting guide rods 44 are slidably connected to the adjusting seat 43. The adjusting guide rods 44 are fixedly connected to the sliding seat 3. An adjusting sleeve 45 is rotatably connected to the adjusting seat 43. The adjusting sleeve 45 is slidably connected to the lower outer periphery of the striking rod 34.

[0072] When the striking motor 39 is working, the striking pinion 38 drives the striking gear 37 to rotate. When the striking short rod 36, which is fixedly connected to the striking gear 37, swings, it drives the striking long rod 34 to swing through the striking sleeve 35 hinged on it, thereby causing the striking column 7 to move back and forth, realizing intermittent loading on the axial loading component 6.

[0073] Meanwhile, the striking pinion 38 fixed to the striking motor 39 can rotate the adjusting main gear shaft 49 that meshes with it, and the adjusting incomplete gear 48 fixedly connected to the adjusting main gear shaft 49 can intermittently rotate the adjusting large gear 47, and the adjusting worm 46 fixedly connected to the adjusting large gear 47 can rotate intermittently, thereby causing the adjusting worm wheel shaft 40 meshing with the adjusting worm 46 to rotate intermittently.

[0074] The adjusting disc 41, which is fixedly connected to the adjusting worm gear shaft 40, together with the adjusting connecting rod 42 and the adjusting seat 43, constitute a crank-slider mechanism. When the adjusting disc 41 rotates intermittently, the adjusting seat 43 can move up and down intermittently, thereby changing the up and down position of the adjusting sleeve 45. This changes the position of the fulcrum at the bottom when the striking rod 34 swings, thus changing the swing amplitude of the striking rod 34. This intermittently changes the distance of the striking column 7's back-and-forth reciprocating movement, thereby changing the axial loading force and simulating an axial loading environment.

[0075] like Figure 13-16 As shown, the slide 3 is fixedly connected to a continuous guide seat 50, which is threadedly connected to the continuous screw 8; the continuous screw 8 moves backward to form a structure in which the buffer platform 26 moves backward; the continuous screw 8 is coaxially fixedly connected to a continuous pinion 52, and a continuous pad 51 is rotatably connected to the side of the continuous screw 8 near the buffer platform 26; the continuous pinion 52 meshes with a continuous long gear shaft 53, which is rotatably connected to the slide 3; the continuous long gear shaft 53 is coaxially fixedly connected to a continuous five-gear 65, which meshes with a continuous four-gear shaft 64, which is rotatably connected to the slide 3;

[0076] The continuous four-gear shaft 64 is coaxially fixedly connected to a continuous rocker arm 63, and the end of the continuous rocker arm 63 is hinged to a continuous connecting rod 62; the slide block 3 is rotatably connected to a continuous three-gear shaft 60, and the continuous three-gear shaft 60 is coaxially fixedly connected to a continuous disk 61, and the end of the continuous connecting rod 62 is rotatably connected to a non-center position on the end face of the continuous disk 61.

[0077] The slide block 3 is fixedly connected to a continuous motor 54. The rotating shaft of the continuous motor 54 is coaxially fixedly connected to a continuous first gear shaft 55. The continuous first gear shaft 55 and the slide block 3 are rotatably connected. The continuous first gear shaft 55 is meshed with a continuous second gear 56. The continuous second gear 56 is coaxially fixedly connected to a continuous dial shaft 57. The continuous dial shaft 57 is engaged with a continuous grooved wheel shaft 58. The continuous grooved wheel shaft 58 and the slide block 3 are rotatably connected. The continuous dial shaft 57 and the continuous grooved wheel shaft 58 cooperate to form a grooved wheel mechanism. One rotation of the continuous dial shaft 57 results in the continuous grooved wheel shaft 58 rotating 60°.

[0078] The continuous grooved wheel shaft 58 is coaxially fixedly connected to a continuous incomplete gear 59, and the rotation of the continuous incomplete gear 59 forms a structure in which the continuous three-gear shaft 60 rotates intermittently.

[0079] When the continuous motor 54 is working, the continuous first gear shaft 55 drives the continuous second gear shaft 56, which meshes with it, to rotate. The continuous second gear shaft 56 causes the continuous dial shaft 57, which is fixed to it, to rotate. The continuous dial shaft 57 causes the continuous Geneva shaft 58, which it meshes with, to rotate intermittently. As a result, the continuous incomplete gear 59, which is fixed to the continuous Geneva shaft 58, can rotate intermittently. Therefore, the continuous incomplete gear 59 can intermittently drive the continuous third gear shaft 60, which it meshes with, to rotate intermittently. The continuous disc 61, continuous connecting rod 62, and continuous rocker arm 63, which are fixedly connected to the continuous third gear shaft 60, form a crank. The rocker mechanism allows the continuous rocker 63 to swing when the continuous three-gear shaft 60 rotates. When the continuous rocker 63 swings, the continuous screw 8 can rotate a large number of times through the transmission from the continuous four-gear shaft 64 to the continuous five-gear shaft 65 and from the continuous long gear shaft 53 to the continuous small gear 52, thus enabling the continuous screw 8 to move and achieve the pressure 6 of the continuous pad 51 on the axial loading component. Furthermore, due to the relatively long length of the continuous long gear shaft 53, power transmission can still be achieved even if the position of the continuous screw 8 changes, thus achieving the supply of continuous axial load and simulating a continuous axial load working environment.

[0080] like Figure 17-20 As shown, there are two radial loading components 9, and the buffer sleeves 23 of the two radial loading components 9 are rotatably connected to both sides of the test shaft 5 respectively; the two ends of the compression component 10 are fixedly connected to the corresponding two buffer platforms 26 respectively; a compression rack 66 is fixedly connected to the middle of the compression component 10.

[0081] The slide block 3 is rotatably connected to a pressing gear shaft 68, and the pressing gear shaft 68 is coaxially fixedly connected to a pressing incomplete gear 67. The pressing incomplete gear 67 rotates to form a structure in which the toothed part of the pressing incomplete gear 67 intermittently meshes with the pressing rack 66.

[0082] The first pressing gear shaft 68 is meshed with the second pressing gear shaft 69, the second pressing gear shaft 69 is coaxially fixedly connected to the pressing worm wheel 70, the pressing worm wheel 70 is meshed with the pressing worm 71, and the second pressing gear shaft 69, the pressing worm wheel 70 and the pressing worm 71 are all rotatably connected to the slide block 3.

[0083] The slide block 3 is fixedly connected to a compression motor 76, and the rotating shaft of the compression motor 76 is coaxially fixedly connected to a power incomplete gear 75; the slide block 3 is rotatably connected to a compression four-gear shaft 73, and the compression four-gear shaft 73 is coaxially fixedly connected to a compression five-gear 74; the rotation of the power incomplete gear 75 forms a structure in which the compression five-gear 74 rotates intermittently.

[0084] The compression four-gear shaft 73 is meshed with a compression three-gear 72, and the compression three-gear 72 and the compression worm 71 are coaxially and fixedly connected.

[0085] When the compression motor 76 is working, the incomplete power gear 75 can intermittently drive the compression fifth gear 74 to rotate, so the compression fourth gear shaft 73, which is fixedly connected to the compression fifth gear 74, can drive the compression third gear 72, which is meshed with it, to rotate. Through the transmission of the worm gear set, the compression second gear shaft 69 rotates, and the compression second gear shaft 69 drives the compression first gear shaft 68, which is meshed with it, to rotate. After the toothed part of the compression incomplete gear 68, which is fixedly connected to the compression first gear shaft 68, and the compression rack 66 are engaged, the compression rack 66 is reset under the action of the return spring 12, and then the next radial loading can begin. This better simulates the working scenario of continuous radial loading and reset.

[0086] In use, the test bearing 22 and test shaft 5 are connected and placed inside the bearing housing 4. Each test shaft 5 is connected to its corresponding radial loading component 9 and axial loading component 6. Iron filings, dust, and other impurities are introduced into each bearing housing 4 through the oil filling port 24. Then, the motors are controlled to operate, causing the slide 3 and its components to reciprocate and generate displacement, simulating the effect of impurities in the lubricating oil inside the bearing housing 4 on bearing life. Furthermore, the axial loading component 6 and radial loading component 9 of each bearing housing 4 can simulate diverse axial and radial load working environments, diversifying the bearing life test and providing more comprehensive bearing life test data.

[0087] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0088] Although this article extensively uses components such as base 1, rocker seat 2, slide 3, bearing housing 4, test shaft 5, axial loading component 6, striking post 7, continuous screw 8, radial loading component 9, pressing component 10, sliding rod 11, return spring 12, rocking connecting rod 13, rocking crank 14, rocking Geneva shaft 15, rocking dial shaft 16, rocking large gear 17, rocking small gear 18, rocking motor 19, power seat 20, return seat 21, test bearing 22, buffer sleeve 23, oil filler 24, buffer shaft 25, buffer platform 26, buffer spring 27, buffer support 28, buffer guide rod 29, test small gear 30, test large gear 31, test motor 32, striking guide seat 33, striking long rod 34, striking sleeve 35, striking short rod 36, striking large gear shaft 37, striking small gear 38, striking motor 39, adjusting worm gear shaft 40, adjusting plate 41, adjusting connecting rod 4 2. Terms such as adjusting seat 43, adjusting guide rod 44, adjusting sleeve 45, adjusting worm 46, adjusting large gear 47, adjusting incomplete gear 48, adjusting main gear shaft 49, continuous guide seat 50, continuous pad 51, continuous small gear 52, continuous long gear shaft 53, continuous motor 54, continuous first gear shaft 55, continuous second gear 56, continuous dial shaft 57, continuous Geneva shaft 58, continuous incomplete gear 59, continuous third gear shaft 60, continuous disc 61, continuous connecting rod 62, continuous rocker arm 63, continuous fourth gear shaft 64, continuous fifth gear 65, pressing rack 66, pressing incomplete gear 67, pressing first gear shaft 68, pressing second gear shaft 69, pressing worm gear 70, pressing worm 71, pressing third gear 72, pressing fourth gear shaft 73, pressing fifth gear 74, power incomplete gear 75, pressing motor 76, etc., are used, but the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the nature of the invention; interpreting them as any additional limitation would be contrary to the spirit of the invention.

Claims

1. A rolling bearing life testing machine for diversified load testing, comprising a base (1), characterized in that: The base (1) is provided with a rocker (2) that can swing back and forth intermittently. The rocker (2) is provided with a slide (3) that can move back and forth along the length of the rocker (2) as it swings. The slide (3) is fixedly connected to three bearing boxes (4) from left to right. The bearing boxes (4) are provided with oil filling ports (24). Test shafts (5) are provided in the bearing boxes (4). The test shafts (5) are connected to the bearing boxes (4) through test bearings (22). The test shafts (5) on the left and middle are connected to axial loading components (6), and the test shafts (5) on the right are connected to radial loading components (9). The axial loading component (6) on the left side is provided with a striking post (7) that can move back and forth, and the amplitude of the back and forth movement of the striking post (7) can change periodically; the axial loading component (6) in the middle is provided with a continuous screw (8) that can continuously load the axial loading component (6) and the loading force can change periodically. The radial loading component (9) is provided with a compression component (10) that can periodically load the radial loading component (9) and the loading force can continuously increase and then return to zero. The bottom of the rocker (2) is fixedly connected to a power base (20), the bottom of the power base (20) is rotatably connected to the base (1), a rocking connecting rod (13) is rotatably connected to the upper side of the power base (20), and a rocking crank (14) is rotatably connected to the end of the rocking connecting rod (13); a rocking grooved wheel shaft (15) is rotatably connected to the base (1), and the rocking grooved wheel shaft (15) and the rocking crank (14) are fixedly connected; the rocking grooved wheel shaft (15) is fitted with a rocking dial shaft (16), and the rocking dial shaft (16) is... The base (1) is rotatably connected to the rocking dial shaft (16) and the rocking grooved wheel shaft (15). The rocking dial shaft (16) rotates one revolution to form a structure in which the rocking grooved wheel shaft (15) rotates 120°. The rocking dial shaft (16) is coaxially fixedly connected to a large rocking gear (17). The large rocking gear (17) meshes with a small rocking gear (18). The base (1) is fixedly connected to a rocking motor (19). The rotating shaft of the rocking motor (19) and the small rocking gear (18) are coaxially fixedly connected. The base (1) has multiple sliding rods (11) fixedly connected to the top, and the slide (3) has a reset seat (21) fixedly connected to the bottom. The sliding rods (11) are all slidably connected to the reset seat (21). The outer periphery of both sides of the sliding rods (11) is fitted with reset springs (12). The test shaft (5) is coaxially fixedly connected to a test pinion (30), the test pinion (30) is meshed with a test gear (31), and the slide (3) is fixedly connected to three test motors (32). The rotating shaft of each test motor (32) is coaxially fixedly connected to the corresponding test pinion (30).

2. The rolling bearing life testing machine for diversified load testing as described in claim 1, characterized in that: The radial loading component (9) includes a buffer sleeve (23) rotatably connected to the test shaft (5), a buffer shaft (25) fixedly connected to the buffer sleeve (23), the buffer shaft (25) being perpendicular to the test shaft (5), and a vertically movable buffer platform (26) slidably connected to the outer periphery of the buffer shaft (25); a buffer spring (27) is fitted around the outer periphery of the buffer shaft (25) located between the buffer platform (26) and the buffer sleeve (23); the radial loading component (9) also includes two upper and lower buffer supports (28) fixedly connected to the slide (3), and multiple buffer guide rods (29) fixedly connected between the two buffer supports, and the buffer platform (26) and the buffer sleeve (23) being slidably connected to the buffer guide rods (29).

3. The rolling bearing life testing machine for diversified load testing as described in claim 1, characterized in that: The axial loading component (6) includes a buffer sleeve (23) rotatably connected to the test shaft (5), the buffer sleeve (23) is fixedly connected to a buffer shaft (25), the buffer shaft (25) is parallel to the test shaft (5), and a buffer platform (26) that can move along the axial direction of the buffer shaft (25) is slidably connected to the outer periphery of the buffer shaft (25); a buffer spring (27) is fitted on the outer periphery of the buffer shaft (25) located between the buffer platform (26) and the buffer sleeve (23); the axial loading component (6) also includes two buffer supports (28) fixedly connected to the slide (3) at the front and rear, and a plurality of buffer guide rods (29) fixedly connected between the two buffer supports (28), and the buffer platform (26) and the buffer sleeve (23) are both slidably connected to the buffer guide rods (29).

4. The rolling bearing life testing machine for diversified load testing as described in claim 3, characterized in that: The slide (3) is fixedly connected to a striking guide (33), and the striking guide (33) and the striking column (7) are slidably connected; the striking column (7) moves backward to form a structure in which the buffer platform (26) moves backward; a striking long rod (34) is hinged to the bottom front side of the striking column (7), and a striking sleeve (35) that can move along the length of the striking long rod (34) is slidably connected to the outer periphery of the upper side of the striking long rod (34), and a striking short rod (36) is hinged to the striking sleeve (35), and a striking large gear shaft (37) is fixedly connected to the end of the striking short rod (36), and the striking large gear shaft (37) and the slide (3) are rotatably connected; a striking small gear (38) is meshed with the striking large gear shaft (37), and a striking motor (39) is fixedly connected to the slide (3), and the rotating shaft of the striking motor (39) and the striking small gear (38) are coaxially fixedly connected; The striking pinion (38) is meshed with an adjusting main gear shaft (49), and the adjusting main gear shaft (49) is rotatably connected to the slide (3); the adjusting main gear shaft is coaxially fixedly connected with an adjusting incomplete gear (48), and the adjusting incomplete gear (48) is engaged with an adjusting large gear (47); the adjusting large gear (47) is coaxially fixedly connected with an adjusting worm (46), and the adjusting worm (46) is meshed with an adjusting worm wheel shaft (40). Both the adjusting worm (46) and the adjusting worm (46) are rotatably connected to the slide (3), and the rotation of the adjusting incomplete gear (48) forms a structure in which the adjusting large gear (47) rotates intermittently; The adjusting worm gear shaft (40) is coaxially fixedly connected to an adjusting disc (41). An adjusting connecting rod (42) is rotatably connected to the non-center position of the end face of the adjusting disc (41). An adjusting seat (43) is rotatably connected to the end of the adjusting connecting rod (42). Two adjusting guide rods (44) are slidably connected to the adjusting seat (43). The adjusting guide rods (44) and the sliding seat (3) are fixedly connected. An adjusting sleeve (45) is rotatably connected to the adjusting seat (43). The adjusting sleeve (45) is slidably connected to the lower outer periphery of the striking rod (34).

5. The rolling bearing life testing machine for diversified load testing as described in claim 3, characterized in that: The slide (3) is fixedly connected to a continuous guide seat (50), and the continuous guide seat (50) and the continuous screw (8) are threaded together; the continuous screw (8) moves backward to form a structure in which the buffer platform (26) moves backward; the continuous screw (8) is coaxially fixedly connected to a continuous pinion (52), and a continuous pad (51) is rotatably connected to the side of the continuous screw (8) near the buffer platform (26); the continuous pinion (52) meshes with a continuous long gear shaft (53), and the continuous long gear shaft (53) is rotatably connected to the slide (3); the continuous long gear shaft (53) is coaxially fixedly connected to a continuous five-gear (65), and the continuous five-gear (65) meshes with a continuous four-gear shaft (64), and the continuous four-gear shaft (64) is rotatably connected to the slide (3); The continuous four-gear shaft (64) is coaxially fixedly connected to a continuous rocker arm (63), and the end of the continuous rocker arm (63) is hinged to a continuous connecting rod (62); the slide (3) is rotatably connected to a continuous three-gear shaft (60), and the continuous three-gear shaft (60) is coaxially fixedly connected to a continuous disk (61), and the end of the continuous connecting rod (62) is rotatably connected to a non-center position on the end face of the continuous disk (61); The slide (3) is fixedly connected to a continuous motor (54), and the rotating shaft of the continuous motor (54) is coaxially fixedly connected to a continuous gear shaft (55). The continuous gear shaft (55) and the slide (3) are rotatably connected. The continuous gear shaft (55) is meshed with a continuous gear (56), and the continuous gear (56) is coaxially fixedly connected to a continuous dial shaft (57). The continuous dial shaft (57) is engaged with a continuous grooved wheel shaft (58), and the continuous grooved wheel shaft (58) and the slide (3) are rotatably connected. The continuous dial shaft (57) and the continuous grooved wheel shaft (58) cooperate to form a grooved wheel mechanism. The continuous dial shaft (57) rotates one revolution to form a structure in which the continuous grooved wheel shaft (58) rotates 60°. The continuous grooved wheel shaft (58) is coaxially fixedly connected to a continuous incomplete gear (59), and the rotation of the continuous incomplete gear (59) forms a structure in which the continuous three-gear shaft (60) rotates intermittently.

6. The rolling bearing life testing machine for diversified load testing as described in claim 2, characterized in that: There are two radial loading components (9), and the buffer sleeves (23) of the two radial loading components (9) are rotatably connected to both sides of the test shaft (5); the two ends of the compression component (10) are fixedly connected to the corresponding two buffer platforms (26); a compression rack (66) is fixedly connected to the middle of the compression component (10). The slide (3) is rotatably connected to a pressing gear shaft (68), and the pressing gear shaft (68) is coaxially fixedly connected to a pressing incomplete gear (67). The pressing incomplete gear (67) rotates to form a structure in which the toothed part of the pressing incomplete gear (67) intermittently meshes with the pressing rack (66). The first pressing gear shaft (68) is meshed with the second pressing gear shaft (69), the second pressing gear shaft (69) is coaxially fixedly connected with the pressing worm wheel (70), the pressing worm wheel (70) is meshed with the pressing worm (71), and the second pressing gear shaft (69), the pressing worm wheel (70) and the pressing worm (71) are all rotatably connected to the slide (3); The slide (3) is fixedly connected to a compression motor (76), and the shaft of the compression motor (76) is coaxially fixedly connected to a power incomplete gear (75); the slide (3) is rotatably connected to a compression four-gear shaft (73), and the compression four-gear shaft (73) is coaxially fixedly connected to a compression five-gear (74); the rotation of the power incomplete gear (75) forms a structure in which the compression five-gear (74) rotates intermittently. The compression four-gear shaft (73) is meshed with a compression three-gear (72), and the compression three-gear (72) and the compression worm (71) are coaxially and fixedly connected.

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